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maxcodehac |
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// WL_DRAW.C |
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#include "wl_def.h" |
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#pragma hdrstop |
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#include "wl_cloudsky.h" |
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#include "wl_atmos.h" |
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#include "wl_shade.h" |
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/* |
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============================================================================= |
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LOCAL CONSTANTS |
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============================================================================= |
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*/ |
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// the door is the last picture before the sprites |
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#define DOORWALL (PMSpriteStart-8) |
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#define ACTORSIZE 0x4000 |
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/* |
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============================================================================= |
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GLOBAL VARIABLES |
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============================================================================= |
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*/ |
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static byte *vbuf = NULL; |
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unsigned vbufPitch = 0; |
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int32_t lasttimecount; |
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int32_t frameon; |
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boolean fpscounter; |
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int fps_frames=0, fps_time=0, fps=0; |
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int *wallheight; |
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int min_wallheight; |
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// |
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// math tables |
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// |
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short *pixelangle; |
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int32_t finetangent[FINEANGLES/4]; |
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fixed sintable[ANGLES+ANGLES/4]; |
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fixed *costable = sintable+(ANGLES/4); |
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// |
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// refresh variables |
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// |
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fixed viewx,viewy; // the focal point |
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short viewangle; |
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fixed viewsin,viewcos; |
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void TransformActor (objtype *ob); |
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void BuildTables (void); |
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void ClearScreen (void); |
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int CalcRotate (objtype *ob); |
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void DrawScaleds (void); |
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void CalcTics (void); |
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void ThreeDRefresh (void); |
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// |
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// wall optimization variables |
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// |
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int lastside; // true for vertical |
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int32_t lastintercept; |
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int lasttilehit; |
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int lasttexture; |
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// |
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// ray tracing variables |
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// |
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short focaltx,focalty,viewtx,viewty; |
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longword xpartialup,xpartialdown,ypartialup,ypartialdown; |
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short midangle,angle; |
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word tilehit; |
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int pixx; |
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short xtile,ytile; |
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short xtilestep,ytilestep; |
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int32_t xintercept,yintercept; |
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word xstep,ystep; |
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word xspot,yspot; |
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int texdelta; |
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word horizwall[MAXWALLTILES],vertwall[MAXWALLTILES]; |
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/* |
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============================================================================ |
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3 - D DEFINITIONS |
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============================================================================ |
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*/ |
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/* |
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======================== |
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= |
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= TransformActor |
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= |
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= Takes paramaters: |
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= gx,gy : globalx/globaly of point |
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= |
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= globals: |
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= viewx,viewy : point of view |
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= viewcos,viewsin : sin/cos of viewangle |
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= scale : conversion from global value to screen value |
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= |
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= sets: |
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= screenx,transx,transy,screenheight: projected edge location and size |
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= |
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======================== |
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*/ |
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// |
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// transform actor |
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// |
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void TransformActor (objtype *ob) |
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{ |
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fixed gx,gy,gxt,gyt,nx,ny; |
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// |
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// translate point to view centered coordinates |
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// |
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gx = ob->x-viewx; |
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gy = ob->y-viewy; |
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// |
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// calculate newx |
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// |
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gxt = FixedMul(gx,viewcos); |
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gyt = FixedMul(gy,viewsin); |
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nx = gxt-gyt-ACTORSIZE; // fudge the shape forward a bit, because |
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// the midpoint could put parts of the shape |
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// into an adjacent wall |
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// |
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// calculate newy |
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// |
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gxt = FixedMul(gx,viewsin); |
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gyt = FixedMul(gy,viewcos); |
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ny = gyt+gxt; |
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// |
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// calculate perspective ratio |
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// |
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ob->transx = nx; |
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ob->transy = ny; |
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if (nx |
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{ |
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ob->viewheight = 0; |
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return; |
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} |
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ob->viewx = (word)(centerx + ny*scale/nx); |
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// |
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// calculate height (heightnumerator/(nx>>8)) |
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// |
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ob->viewheight = (word)(heightnumerator/(nx>>8)); |
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} |
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//========================================================================== |
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/* |
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======================== |
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= |
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= TransformTile |
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= |
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= Takes paramaters: |
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= tx,ty : tile the object is centered in |
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= |
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= globals: |
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= viewx,viewy : point of view |
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= viewcos,viewsin : sin/cos of viewangle |
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= scale : conversion from global value to screen value |
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= |
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= sets: |
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= screenx,transx,transy,screenheight: projected edge location and size |
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= |
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= Returns true if the tile is withing getting distance |
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= |
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======================== |
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*/ |
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boolean TransformTile (int tx, int ty, short *dispx, short *dispheight) |
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{ |
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fixed gx,gy,gxt,gyt,nx,ny; |
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// |
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// translate point to view centered coordinates |
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// |
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gx = ((int32_t)tx< |
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gy = ((int32_t)ty< |
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// |
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// calculate newx |
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// |
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gxt = FixedMul(gx,viewcos); |
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gyt = FixedMul(gy,viewsin); |
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nx = gxt-gyt-0x2000; // 0x2000 is size of object |
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// |
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// calculate newy |
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// |
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gxt = FixedMul(gx,viewsin); |
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gyt = FixedMul(gy,viewcos); |
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ny = gyt+gxt; |
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// |
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// calculate height / perspective ratio |
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// |
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if (nx |
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*dispheight = 0; |
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else |
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{ |
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*dispx = (short)(centerx + ny*scale/nx); |
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*dispheight = (short)(heightnumerator/(nx>>8)); |
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} |
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// |
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// see if it should be grabbed |
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// |
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if (nx-TILEGLOBAL/2 && ny |
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return true; |
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else |
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return false; |
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} |
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//========================================================================== |
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/* |
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==================== |
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= |
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= CalcHeight |
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= |
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= Calculates the height of xintercept,yintercept from viewx,viewy |
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= |
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==================== |
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*/ |
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int CalcHeight() |
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{ |
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fixed z = FixedMul(xintercept - viewx, viewcos) |
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- FixedMul(yintercept - viewy, viewsin); |
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if(z < MINDIST) z = MINDIST; |
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int height = heightnumerator / (z >> 8); |
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if(height < min_wallheight) min_wallheight = height; |
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return height; |
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} |
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//========================================================================== |
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/* |
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=================== |
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= |
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= ScalePost |
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= |
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=================== |
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*/ |
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byte *postsource; |
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int postx; |
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int postwidth; |
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void ScalePost() |
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{ |
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int ywcount, yoffs, yw, yd, yendoffs; |
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byte col; |
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#ifdef USE_SHADING |
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byte *curshades = shadetable[GetShade(wallheight[postx])]; |
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#endif |
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ywcount = yd = wallheight[postx] >> 3; |
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if(yd <= 0) yd = 100; |
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yoffs = (viewheight / 2 - ywcount) * vbufPitch; |
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if(yoffs < 0) yoffs = 0; |
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yoffs += postx; |
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yendoffs = viewheight / 2 + ywcount - 1; |
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yw=TEXTURESIZE-1; |
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while(yendoffs >= viewheight) |
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{ |
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ywcount -= TEXTURESIZE/2; |
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while(ywcount <= 0) |
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{ |
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ywcount += yd; |
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yw--; |
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} |
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yendoffs--; |
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} |
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if(yw < 0) return; |
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#ifdef USE_SHADING |
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col = curshades[postsource[yw]]; |
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#else |
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col = postsource[yw]; |
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#endif |
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yendoffs = yendoffs * vbufPitch + postx; |
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while(yoffs <= yendoffs) |
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{ |
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vbuf[yendoffs] = col; |
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ywcount -= TEXTURESIZE/2; |
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if(ywcount <= 0) |
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{ |
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do |
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{ |
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ywcount += yd; |
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yw--; |
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} |
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while(ywcount <= 0); |
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if(yw < 0) break; |
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#ifdef USE_SHADING |
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col = curshades[postsource[yw]]; |
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#else |
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col = postsource[yw]; |
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#endif |
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} |
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yendoffs -= vbufPitch; |
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} |
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} |
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void GlobalScalePost(byte *vidbuf, unsigned pitch) |
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{ |
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vbuf = vidbuf; |
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vbufPitch = pitch; |
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ScalePost(); |
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} |
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/* |
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==================== |
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= |
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= HitVertWall |
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= |
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= tilehit bit 7 is 0, because it's not a door tile |
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= if bit 6 is 1 and the adjacent tile is a door tile, use door side pic |
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= |
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==================== |
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*/ |
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void HitVertWall (void) |
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{ |
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int wallpic; |
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int texture; |
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360 |
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texture = ((yintercept+texdelta)>>TEXTUREFROMFIXEDSHIFT)&TEXTUREMASK; |
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if (xtilestep == -1) |
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{ |
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texture = TEXTUREMASK-texture; |
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xintercept += TILEGLOBAL; |
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} |
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if(lastside==1 && lastintercept==xtile && lasttilehit==tilehit && !(lasttilehit & 0x40)) |
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{ |
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if((pixx&3) && texture == lasttexture) |
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{ |
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ScalePost(); |
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postx = pixx; |
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wallheight[pixx] = wallheight[pixx-1]; |
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return; |
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} |
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ScalePost(); |
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wallheight[pixx] = CalcHeight(); |
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postsource+=texture-lasttexture; |
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postwidth=1; |
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postx=pixx; |
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lasttexture=texture; |
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return; |
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} |
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385 |
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if(lastside!=-1) ScalePost(); |
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387 |
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lastside=1; |
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lastintercept=xtile; |
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lasttilehit=tilehit; |
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lasttexture=texture; |
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wallheight[pixx] = CalcHeight(); |
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postx = pixx; |
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postwidth = 1; |
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395 |
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if (tilehit & 0x40) |
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{ // check for adjacent doors |
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ytile = (short)(yintercept>>TILESHIFT); |
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if ( tilemap[xtile-xtilestep][ytile]&0x80 ) |
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wallpic = DOORWALL+3; |
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else |
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wallpic = vertwall[tilehit & ~0x40]; |
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} |
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else |
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wallpic = vertwall[tilehit]; |
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406 |
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postsource = PM_GetTexture(wallpic) + texture; |
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} |
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409 |
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410 |
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411 |
/* |
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412 |
==================== |
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413 |
= |
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414 |
= HitHorizWall |
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415 |
= |
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416 |
= tilehit bit 7 is 0, because it's not a door tile |
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417 |
= if bit 6 is 1 and the adjacent tile is a door tile, use door side pic |
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418 |
= |
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419 |
==================== |
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420 |
*/ |
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421 |
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422 |
void HitHorizWall (void) |
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423 |
{ |
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424 |
int wallpic; |
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int texture; |
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426 |
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427 |
texture = ((xintercept+texdelta)>>TEXTUREFROMFIXEDSHIFT)&TEXTUREMASK; |
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428 |
if (ytilestep == -1) |
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yintercept += TILEGLOBAL; |
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else |
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431 |
texture = TEXTUREMASK-texture; |
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432 |
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433 |
if(lastside==0 && lastintercept==ytile && lasttilehit==tilehit && !(lasttilehit & 0x40)) |
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{ |
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435 |
if((pixx&3) && texture == lasttexture) |
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436 |
{ |
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437 |
ScalePost(); |
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postx=pixx; |
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439 |
wallheight[pixx] = wallheight[pixx-1]; |
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440 |
return; |
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441 |
} |
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ScalePost(); |
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443 |
wallheight[pixx] = CalcHeight(); |
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postsource+=texture-lasttexture; |
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445 |
postwidth=1; |
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postx=pixx; |
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lasttexture=texture; |
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448 |
return; |
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449 |
} |
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450 |
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451 |
if(lastside!=-1) ScalePost(); |
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|
452 |
|
|
|
453 |
lastside=0; |
|
|
454 |
lastintercept=ytile; |
|
|
455 |
lasttilehit=tilehit; |
|
|
456 |
lasttexture=texture; |
|
|
457 |
wallheight[pixx] = CalcHeight(); |
|
|
458 |
postx = pixx; |
|
|
459 |
postwidth = 1; |
|
|
460 |
|
|
|
461 |
if (tilehit & 0x40) |
|
|
462 |
{ // check for adjacent doors |
|
|
463 |
xtile = (short)(xintercept>>TILESHIFT); |
|
|
464 |
if ( tilemap[xtile][ytile-ytilestep]&0x80) |
|
|
465 |
wallpic = DOORWALL+2; |
|
|
466 |
else |
|
|
467 |
wallpic = horizwall[tilehit & ~0x40]; |
|
|
468 |
} |
|
|
469 |
else |
|
|
470 |
wallpic = horizwall[tilehit]; |
|
|
471 |
|
|
|
472 |
postsource = PM_GetTexture(wallpic) + texture; |
|
|
473 |
} |
|
|
474 |
|
|
|
475 |
//========================================================================== |
|
|
476 |
|
|
|
477 |
/* |
|
|
478 |
==================== |
|
|
479 |
= |
|
|
480 |
= HitHorizDoor |
|
|
481 |
= |
|
|
482 |
==================== |
|
|
483 |
*/ |
|
|
484 |
|
|
|
485 |
void HitHorizDoor (void) |
|
|
486 |
{ |
|
|
487 |
int doorpage; |
|
|
488 |
int doornum; |
|
|
489 |
int texture; |
|
|
490 |
|
|
|
491 |
doornum = tilehit&0x7f; |
|
|
492 |
texture = ((xintercept-doorposition[doornum])>>TEXTUREFROMFIXEDSHIFT)&TEXTUREMASK; |
|
|
493 |
|
|
|
494 |
if(lasttilehit==tilehit) |
|
|
495 |
{ |
|
|
496 |
if((pixx&3) && texture == lasttexture) |
|
|
497 |
{ |
|
|
498 |
ScalePost(); |
|
|
499 |
postx=pixx; |
|
|
500 |
wallheight[pixx] = wallheight[pixx-1]; |
|
|
501 |
return; |
|
|
502 |
} |
|
|
503 |
ScalePost(); |
|
|
504 |
wallheight[pixx] = CalcHeight(); |
|
|
505 |
postsource+=texture-lasttexture; |
|
|
506 |
postwidth=1; |
|
|
507 |
postx=pixx; |
|
|
508 |
lasttexture=texture; |
|
|
509 |
return; |
|
|
510 |
} |
|
|
511 |
|
|
|
512 |
if(lastside!=-1) ScalePost(); |
|
|
513 |
|
|
|
514 |
lastside=2; |
|
|
515 |
lasttilehit=tilehit; |
|
|
516 |
lasttexture=texture; |
|
|
517 |
wallheight[pixx] = CalcHeight(); |
|
|
518 |
postx = pixx; |
|
|
519 |
postwidth = 1; |
|
|
520 |
|
|
|
521 |
switch(doorobjlist[doornum].lock) |
|
|
522 |
{ |
|
|
523 |
case dr_normal: |
|
|
524 |
doorpage = DOORWALL; |
|
|
525 |
break; |
|
|
526 |
case dr_lock1: |
|
|
527 |
case dr_lock2: |
|
|
528 |
case dr_lock3: |
|
|
529 |
case dr_lock4: |
|
|
530 |
doorpage = DOORWALL+6; |
|
|
531 |
break; |
|
|
532 |
case dr_elevator: |
|
|
533 |
doorpage = DOORWALL+4; |
|
|
534 |
break; |
|
|
535 |
} |
|
|
536 |
|
|
|
537 |
postsource = PM_GetTexture(doorpage) + texture; |
|
|
538 |
} |
|
|
539 |
|
|
|
540 |
//========================================================================== |
|
|
541 |
|
|
|
542 |
/* |
|
|
543 |
==================== |
|
|
544 |
= |
|
|
545 |
= HitVertDoor |
|
|
546 |
= |
|
|
547 |
==================== |
|
|
548 |
*/ |
|
|
549 |
|
|
|
550 |
void HitVertDoor (void) |
|
|
551 |
{ |
|
|
552 |
int doorpage; |
|
|
553 |
int doornum; |
|
|
554 |
int texture; |
|
|
555 |
|
|
|
556 |
doornum = tilehit&0x7f; |
|
|
557 |
texture = ((yintercept-doorposition[doornum])>>TEXTUREFROMFIXEDSHIFT)&TEXTUREMASK; |
|
|
558 |
|
|
|
559 |
if(lasttilehit==tilehit) |
|
|
560 |
{ |
|
|
561 |
if((pixx&3) && texture == lasttexture) |
|
|
562 |
{ |
|
|
563 |
ScalePost(); |
|
|
564 |
postx=pixx; |
|
|
565 |
wallheight[pixx] = wallheight[pixx-1]; |
|
|
566 |
return; |
|
|
567 |
} |
|
|
568 |
ScalePost(); |
|
|
569 |
wallheight[pixx] = CalcHeight(); |
|
|
570 |
postsource+=texture-lasttexture; |
|
|
571 |
postwidth=1; |
|
|
572 |
postx=pixx; |
|
|
573 |
lasttexture=texture; |
|
|
574 |
return; |
|
|
575 |
} |
|
|
576 |
|
|
|
577 |
if(lastside!=-1) ScalePost(); |
|
|
578 |
|
|
|
579 |
lastside=2; |
|
|
580 |
lasttilehit=tilehit; |
|
|
581 |
lasttexture=texture; |
|
|
582 |
wallheight[pixx] = CalcHeight(); |
|
|
583 |
postx = pixx; |
|
|
584 |
postwidth = 1; |
|
|
585 |
|
|
|
586 |
switch(doorobjlist[doornum].lock) |
|
|
587 |
{ |
|
|
588 |
case dr_normal: |
|
|
589 |
doorpage = DOORWALL+1; |
|
|
590 |
break; |
|
|
591 |
case dr_lock1: |
|
|
592 |
case dr_lock2: |
|
|
593 |
case dr_lock3: |
|
|
594 |
case dr_lock4: |
|
|
595 |
doorpage = DOORWALL+7; |
|
|
596 |
break; |
|
|
597 |
case dr_elevator: |
|
|
598 |
doorpage = DOORWALL+5; |
|
|
599 |
break; |
|
|
600 |
} |
|
|
601 |
|
|
|
602 |
postsource = PM_GetTexture(doorpage) + texture; |
|
|
603 |
} |
|
|
604 |
|
|
|
605 |
//========================================================================== |
|
|
606 |
|
|
|
607 |
#define HitHorizBorder HitHorizWall |
|
|
608 |
#define HitVertBorder HitVertWall |
|
|
609 |
|
|
|
610 |
//========================================================================== |
|
|
611 |
|
|
|
612 |
byte vgaCeiling[]= |
|
|
613 |
{ |
|
|
614 |
#ifndef SPEAR |
|
|
615 |
0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0xbf, |
|
|
616 |
0x4e,0x4e,0x4e,0x1d,0x8d,0x4e,0x1d,0x2d,0x1d,0x8d, |
|
|
617 |
0x1d,0x1d,0x1d,0x1d,0x1d,0x2d,0xdd,0x1d,0x1d,0x98, |
|
|
618 |
|
|
|
619 |
0x1d,0x9d,0x2d,0xdd,0xdd,0x9d,0x2d,0x4d,0x1d,0xdd, |
|
|
620 |
0x7d,0x1d,0x2d,0x2d,0xdd,0xd7,0x1d,0x1d,0x1d,0x2d, |
|
|
621 |
0x1d,0x1d,0x1d,0x1d,0xdd,0xdd,0x7d,0xdd,0xdd,0xdd |
|
|
622 |
#else |
|
|
623 |
0x6f,0x4f,0x1d,0xde,0xdf,0x2e,0x7f,0x9e,0xae,0x7f, |
|
|
624 |
0x1d,0xde,0xdf,0xde,0xdf,0xde,0xe1,0xdc,0x2e,0x1d,0xdc |
|
|
625 |
#endif |
|
|
626 |
}; |
|
|
627 |
|
|
|
628 |
/* |
|
|
629 |
===================== |
|
|
630 |
= |
|
|
631 |
= VGAClearScreen |
|
|
632 |
= |
|
|
633 |
===================== |
|
|
634 |
*/ |
|
|
635 |
|
|
|
636 |
void VGAClearScreen (void) |
|
|
637 |
{ |
|
|
638 |
byte ceiling=vgaCeiling[gamestate.episode*10+mapon]; |
|
|
639 |
|
|
|
640 |
int y; |
|
|
641 |
byte *ptr = vbuf; |
|
|
642 |
#ifdef USE_SHADING |
|
|
643 |
for(y = 0; y < viewheight / 2; y++, ptr += vbufPitch) |
|
|
644 |
memset(ptr, shadetable[GetShade((viewheight / 2 - y) << 3)][ceiling], viewwidth); |
|
|
645 |
for(; y < viewheight; y++, ptr += vbufPitch) |
|
|
646 |
memset(ptr, shadetable[GetShade((y - viewheight / 2) << 3)][0x19], viewwidth); |
|
|
647 |
#else |
|
|
648 |
for(y = 0; y < viewheight / 2; y++, ptr += vbufPitch) |
|
|
649 |
memset(ptr, ceiling, viewwidth); |
|
|
650 |
for(; y < viewheight; y++, ptr += vbufPitch) |
|
|
651 |
memset(ptr, 0x19, viewwidth); |
|
|
652 |
#endif |
|
|
653 |
} |
|
|
654 |
|
|
|
655 |
//========================================================================== |
|
|
656 |
|
|
|
657 |
/* |
|
|
658 |
===================== |
|
|
659 |
= |
|
|
660 |
= CalcRotate |
|
|
661 |
= |
|
|
662 |
===================== |
|
|
663 |
*/ |
|
|
664 |
|
|
|
665 |
int CalcRotate (objtype *ob) |
|
|
666 |
{ |
|
|
667 |
int angle, viewangle; |
|
|
668 |
|
|
|
669 |
// this isn't exactly correct, as it should vary by a trig value, |
|
|
670 |
// but it is close enough with only eight rotations |
|
|
671 |
|
|
|
672 |
viewangle = player->angle + (centerx - ob->viewx)/8; |
|
|
673 |
|
|
|
674 |
if (ob->obclass == rocketobj || ob->obclass == hrocketobj) |
|
|
675 |
angle = (viewangle-180) - ob->angle; |
|
|
676 |
else |
|
|
677 |
angle = (viewangle-180) - dirangle[ob->dir]; |
|
|
678 |
|
|
|
679 |
angle+=ANGLES/16; |
|
|
680 |
while (angle>=ANGLES) |
|
|
681 |
angle-=ANGLES; |
|
|
682 |
while (angle<0) |
|
|
683 |
angle+=ANGLES; |
|
|
684 |
|
|
|
685 |
if (ob->state->rotate == 2) // 2 rotation pain frame |
|
|
686 |
return 0; // pain with shooting frame bugfix |
|
|
687 |
|
|
|
688 |
return angle/(ANGLES/8); |
|
|
689 |
} |
|
|
690 |
|
|
|
691 |
void ScaleShape (int xcenter, int shapenum, unsigned height, uint32_t flags) |
|
|
692 |
{ |
|
|
693 |
t_compshape *shape; |
|
|
694 |
unsigned scale,pixheight; |
|
|
695 |
unsigned starty,endy; |
|
|
696 |
word *cmdptr; |
|
|
697 |
byte *cline; |
|
|
698 |
byte *line; |
|
|
699 |
byte *vmem; |
|
|
700 |
int actx,i,upperedge; |
|
|
701 |
short newstart; |
|
|
702 |
int scrstarty,screndy,lpix,rpix,pixcnt,ycnt; |
|
|
703 |
unsigned j; |
|
|
704 |
byte col; |
|
|
705 |
|
|
|
706 |
#ifdef USE_SHADING |
|
|
707 |
byte *curshades; |
|
|
708 |
if(flags & FL_FULLBRIGHT) |
|
|
709 |
curshades = shadetable[0]; |
|
|
710 |
else |
|
|
711 |
curshades = shadetable[GetShade(height)]; |
|
|
712 |
#endif |
|
|
713 |
|
|
|
714 |
shape = (t_compshape *) PM_GetSprite(shapenum); |
|
|
715 |
|
|
|
716 |
scale=height>>3; // low three bits are fractional |
|
|
717 |
if(!scale) return; // too close or far away |
|
|
718 |
|
|
|
719 |
pixheight=scale*SPRITESCALEFACTOR; |
|
|
720 |
actx=xcenter-scale; |
|
|
721 |
upperedge=viewheight/2-scale; |
|
|
722 |
|
|
|
723 |
cmdptr=(word *) shape->dataofs; |
|
|
724 |
|
|
|
725 |
for(i=shape->leftpix,pixcnt=i*pixheight,rpix=(pixcnt>>6)+actx;i<=shape->rightpix;i++,cmdptr++) |
|
|
726 |
{ |
|
|
727 |
lpix=rpix; |
|
|
728 |
if(lpix>=viewwidth) break; |
|
|
729 |
pixcnt+=pixheight; |
|
|
730 |
rpix=(pixcnt>>6)+actx; |
|
|
731 |
if(lpix!=rpix && rpix>0) |
|
|
732 |
{ |
|
|
733 |
if(lpix<0) lpix=0; |
|
|
734 |
if(rpix>viewwidth) rpix=viewwidth,i=shape->rightpix+1; |
|
|
735 |
cline=(byte *)shape + *cmdptr; |
|
|
736 |
while(lpix |
|
|
737 |
{ |
|
|
738 |
if(wallheight[lpix]<=(int)height) |
|
|
739 |
{ |
|
|
740 |
line=cline; |
|
|
741 |
while((endy = READWORD(line)) != 0) |
|
|
742 |
{ |
|
|
743 |
endy >>= 1; |
|
|
744 |
newstart = READWORD(line); |
|
|
745 |
starty = READWORD(line) >> 1; |
|
|
746 |
j=starty; |
|
|
747 |
ycnt=j*pixheight; |
|
|
748 |
screndy=(ycnt>>6)+upperedge; |
|
|
749 |
if(screndy<0) vmem=vbuf+lpix; |
|
|
750 |
else vmem=vbuf+screndy*vbufPitch+lpix; |
|
|
751 |
for(;j |
|
|
752 |
{ |
|
|
753 |
scrstarty=screndy; |
|
|
754 |
ycnt+=pixheight; |
|
|
755 |
screndy=(ycnt>>6)+upperedge; |
|
|
756 |
if(scrstarty!=screndy && screndy>0) |
|
|
757 |
{ |
|
|
758 |
#ifdef USE_SHADING |
|
|
759 |
col=curshades[((byte *)shape)[newstart+j]]; |
|
|
760 |
#else |
|
|
761 |
col=((byte *)shape)[newstart+j]; |
|
|
762 |
#endif |
|
|
763 |
if(scrstarty<0) scrstarty=0; |
|
|
764 |
if(screndy>viewheight) screndy=viewheight,j=endy; |
|
|
765 |
|
|
|
766 |
while(scrstarty |
|
|
767 |
{ |
|
|
768 |
*vmem=col; |
|
|
769 |
vmem+=vbufPitch; |
|
|
770 |
scrstarty++; |
|
|
771 |
} |
|
|
772 |
} |
|
|
773 |
} |
|
|
774 |
} |
|
|
775 |
} |
|
|
776 |
lpix++; |
|
|
777 |
} |
|
|
778 |
} |
|
|
779 |
} |
|
|
780 |
} |
|
|
781 |
|
|
|
782 |
void SimpleScaleShape (int xcenter, int shapenum, unsigned height) |
|
|
783 |
{ |
|
|
784 |
t_compshape *shape; |
|
|
785 |
unsigned scale,pixheight; |
|
|
786 |
unsigned starty,endy; |
|
|
787 |
word *cmdptr; |
|
|
788 |
byte *cline; |
|
|
789 |
byte *line; |
|
|
790 |
int actx,i,upperedge; |
|
|
791 |
short newstart; |
|
|
792 |
int scrstarty,screndy,lpix,rpix,pixcnt,ycnt; |
|
|
793 |
unsigned j; |
|
|
794 |
byte col; |
|
|
795 |
byte *vmem; |
|
|
796 |
|
|
|
797 |
shape = (t_compshape *) PM_GetSprite(shapenum); |
|
|
798 |
|
|
|
799 |
scale=height>>1; |
|
|
800 |
pixheight=scale*SPRITESCALEFACTOR; |
|
|
801 |
actx=xcenter-scale; |
|
|
802 |
upperedge=viewheight/2-scale; |
|
|
803 |
|
|
|
804 |
cmdptr=shape->dataofs; |
|
|
805 |
|
|
|
806 |
for(i=shape->leftpix,pixcnt=i*pixheight,rpix=(pixcnt>>6)+actx;i<=shape->rightpix;i++,cmdptr++) |
|
|
807 |
{ |
|
|
808 |
lpix=rpix; |
|
|
809 |
if(lpix>=viewwidth) break; |
|
|
810 |
pixcnt+=pixheight; |
|
|
811 |
rpix=(pixcnt>>6)+actx; |
|
|
812 |
if(lpix!=rpix && rpix>0) |
|
|
813 |
{ |
|
|
814 |
if(lpix<0) lpix=0; |
|
|
815 |
if(rpix>viewwidth) rpix=viewwidth,i=shape->rightpix+1; |
|
|
816 |
cline = (byte *)shape + *cmdptr; |
|
|
817 |
while(lpix |
|
|
818 |
{ |
|
|
819 |
line=cline; |
|
|
820 |
while((endy = READWORD(line)) != 0) |
|
|
821 |
{ |
|
|
822 |
endy >>= 1; |
|
|
823 |
newstart = READWORD(line); |
|
|
824 |
starty = READWORD(line) >> 1; |
|
|
825 |
j=starty; |
|
|
826 |
ycnt=j*pixheight; |
|
|
827 |
screndy=(ycnt>>6)+upperedge; |
|
|
828 |
if(screndy<0) vmem=vbuf+lpix; |
|
|
829 |
else vmem=vbuf+screndy*vbufPitch+lpix; |
|
|
830 |
for(;j |
|
|
831 |
{ |
|
|
832 |
scrstarty=screndy; |
|
|
833 |
ycnt+=pixheight; |
|
|
834 |
screndy=(ycnt>>6)+upperedge; |
|
|
835 |
if(scrstarty!=screndy && screndy>0) |
|
|
836 |
{ |
|
|
837 |
col=((byte *)shape)[newstart+j]; |
|
|
838 |
if(scrstarty<0) scrstarty=0; |
|
|
839 |
if(screndy>viewheight) screndy=viewheight,j=endy; |
|
|
840 |
|
|
|
841 |
while(scrstarty |
|
|
842 |
{ |
|
|
843 |
*vmem=col; |
|
|
844 |
vmem+=vbufPitch; |
|
|
845 |
scrstarty++; |
|
|
846 |
} |
|
|
847 |
} |
|
|
848 |
} |
|
|
849 |
} |
|
|
850 |
lpix++; |
|
|
851 |
} |
|
|
852 |
} |
|
|
853 |
} |
|
|
854 |
} |
|
|
855 |
|
|
|
856 |
/* |
|
|
857 |
===================== |
|
|
858 |
= |
|
|
859 |
= DrawScaleds |
|
|
860 |
= |
|
|
861 |
= Draws all objects that are visable |
|
|
862 |
= |
|
|
863 |
===================== |
|
|
864 |
*/ |
|
|
865 |
|
|
|
866 |
#define MAXVISABLE 250 |
|
|
867 |
|
|
|
868 |
typedef struct |
|
|
869 |
{ |
|
|
870 |
short viewx, |
|
|
871 |
viewheight, |
|
|
872 |
shapenum; |
|
|
873 |
short flags; // this must be changed to uint32_t, when you |
|
|
874 |
// you need more than 16-flags for drawing |
|
|
875 |
#ifdef USE_DIR3DSPR |
|
|
876 |
statobj_t *transsprite; |
|
|
877 |
#endif |
|
|
878 |
} visobj_t; |
|
|
879 |
|
|
|
880 |
visobj_t vislist[MAXVISABLE]; |
|
|
881 |
visobj_t *visptr,*visstep,*farthest; |
|
|
882 |
|
|
|
883 |
void DrawScaleds (void) |
|
|
884 |
{ |
|
|
885 |
int i,least,numvisable,height; |
|
|
886 |
byte *tilespot,*visspot; |
|
|
887 |
unsigned spotloc; |
|
|
888 |
|
|
|
889 |
statobj_t *statptr; |
|
|
890 |
objtype *obj; |
|
|
891 |
|
|
|
892 |
visptr = &vislist[0]; |
|
|
893 |
|
|
|
894 |
// |
|
|
895 |
// place static objects |
|
|
896 |
// |
|
|
897 |
for (statptr = &statobjlist[0] ; statptr !=laststatobj ; statptr++) |
|
|
898 |
{ |
|
|
899 |
if ((visptr->shapenum = statptr->shapenum) == -1) |
|
|
900 |
continue; // object has been deleted |
|
|
901 |
|
|
|
902 |
if (!*statptr->visspot) |
|
|
903 |
continue; // not visable |
|
|
904 |
|
|
|
905 |
if (TransformTile (statptr->tilex,statptr->tiley, |
|
|
906 |
&visptr->viewx,&visptr->viewheight) && statptr->flags & FL_BONUS) |
|
|
907 |
{ |
|
|
908 |
GetBonus (statptr); |
|
|
909 |
if(statptr->shapenum == -1) |
|
|
910 |
continue; // object has been taken |
|
|
911 |
} |
|
|
912 |
|
|
|
913 |
if (!visptr->viewheight) |
|
|
914 |
continue; // to close to the object |
|
|
915 |
|
|
|
916 |
#ifdef USE_DIR3DSPR |
|
|
917 |
if(statptr->flags & FL_DIR_MASK) |
|
|
918 |
visptr->transsprite=statptr; |
|
|
919 |
else |
|
|
920 |
visptr->transsprite=NULL; |
|
|
921 |
#endif |
|
|
922 |
|
|
|
923 |
if (visptr < &vislist[MAXVISABLE-1]) // don't let it overflow |
|
|
924 |
{ |
|
|
925 |
visptr->flags = (short) statptr->flags; |
|
|
926 |
visptr++; |
|
|
927 |
} |
|
|
928 |
} |
|
|
929 |
|
|
|
930 |
// |
|
|
931 |
// place active objects |
|
|
932 |
// |
|
|
933 |
for (obj = player->next;obj;obj=obj->next) |
|
|
934 |
{ |
|
|
935 |
if ((visptr->shapenum = obj->state->shapenum)==0) |
|
|
936 |
continue; // no shape |
|
|
937 |
|
|
|
938 |
spotloc = (obj->tilex<tiley; // optimize: keep in struct? |
|
|
939 |
visspot = &spotvis[0][0]+spotloc; |
|
|
940 |
tilespot = &tilemap[0][0]+spotloc; |
|
|
941 |
|
|
|
942 |
// |
|
|
943 |
// could be in any of the nine surrounding tiles |
|
|
944 |
// |
|
|
945 |
if (*visspot |
|
|
946 |
|| ( *(visspot-1) && !*(tilespot-1) ) |
|
|
947 |
|| ( *(visspot+1) && !*(tilespot+1) ) |
|
|
948 |
|| ( *(visspot-65) && !*(tilespot-65) ) |
|
|
949 |
|| ( *(visspot-64) && !*(tilespot-64) ) |
|
|
950 |
|| ( *(visspot-63) && !*(tilespot-63) ) |
|
|
951 |
|| ( *(visspot+65) && !*(tilespot+65) ) |
|
|
952 |
|| ( *(visspot+64) && !*(tilespot+64) ) |
|
|
953 |
|| ( *(visspot+63) && !*(tilespot+63) ) ) |
|
|
954 |
{ |
|
|
955 |
obj->active = ac_yes; |
|
|
956 |
TransformActor (obj); |
|
|
957 |
if (!obj->viewheight) |
|
|
958 |
continue; // too close or far away |
|
|
959 |
|
|
|
960 |
visptr->viewx = obj->viewx; |
|
|
961 |
visptr->viewheight = obj->viewheight; |
|
|
962 |
if (visptr->shapenum == -1) |
|
|
963 |
visptr->shapenum = obj->temp1; // special shape |
|
|
964 |
|
|
|
965 |
if (obj->state->rotate) |
|
|
966 |
visptr->shapenum += CalcRotate (obj); |
|
|
967 |
|
|
|
968 |
if (visptr < &vislist[MAXVISABLE-1]) // don't let it overflow |
|
|
969 |
{ |
|
|
970 |
visptr->flags = (short) obj->flags; |
|
|
971 |
#ifdef USE_DIR3DSPR |
|
|
972 |
visptr->transsprite = NULL; |
|
|
973 |
#endif |
|
|
974 |
visptr++; |
|
|
975 |
} |
|
|
976 |
obj->flags |= FL_VISABLE; |
|
|
977 |
} |
|
|
978 |
else |
|
|
979 |
obj->flags &= ~FL_VISABLE; |
|
|
980 |
} |
|
|
981 |
|
|
|
982 |
// |
|
|
983 |
// draw from back to front |
|
|
984 |
// |
|
|
985 |
numvisable = (int) (visptr-&vislist[0]); |
|
|
986 |
|
|
|
987 |
if (!numvisable) |
|
|
988 |
return; // no visable objects |
|
|
989 |
|
|
|
990 |
for (i = 0; i |
|
|
991 |
{ |
|
|
992 |
least = 32000; |
|
|
993 |
for (visstep=&vislist[0] ; visstep |
|
|
994 |
{ |
|
|
995 |
height = visstep->viewheight; |
|
|
996 |
if (height < least) |
|
|
997 |
{ |
|
|
998 |
least = height; |
|
|
999 |
farthest = visstep; |
|
|
1000 |
} |
|
|
1001 |
} |
|
|
1002 |
// |
|
|
1003 |
// draw farthest |
|
|
1004 |
// |
|
|
1005 |
#ifdef USE_DIR3DSPR |
|
|
1006 |
if(farthest->transsprite) |
|
|
1007 |
Scale3DShape(vbuf, vbufPitch, farthest->transsprite); |
|
|
1008 |
else |
|
|
1009 |
#endif |
|
|
1010 |
ScaleShape(farthest->viewx, farthest->shapenum, farthest->viewheight, farthest->flags); |
|
|
1011 |
|
|
|
1012 |
farthest->viewheight = 32000; |
|
|
1013 |
} |
|
|
1014 |
} |
|
|
1015 |
|
|
|
1016 |
//========================================================================== |
|
|
1017 |
|
|
|
1018 |
/* |
|
|
1019 |
============== |
|
|
1020 |
= |
|
|
1021 |
= DrawPlayerWeapon |
|
|
1022 |
= |
|
|
1023 |
= Draw the player's hands |
|
|
1024 |
= |
|
|
1025 |
============== |
|
|
1026 |
*/ |
|
|
1027 |
|
|
|
1028 |
int weaponscale[NUMWEAPONS] = {SPR_KNIFEREADY, SPR_PISTOLREADY, |
|
|
1029 |
SPR_MACHINEGUNREADY, SPR_CHAINREADY}; |
|
|
1030 |
|
|
|
1031 |
void DrawPlayerWeapon (void) |
|
|
1032 |
{ |
|
|
1033 |
int shapenum; |
|
|
1034 |
|
|
|
1035 |
#ifndef SPEAR |
|
|
1036 |
if (gamestate.victoryflag) |
|
|
1037 |
{ |
|
|
1038 |
#ifndef APOGEE_1_0 |
|
|
1039 |
if (player->state == &s_deathcam && (GetTimeCount()&32) ) |
|
|
1040 |
SimpleScaleShape(viewwidth/2,SPR_DEATHCAM,viewheight+1); |
|
|
1041 |
#endif |
|
|
1042 |
return; |
|
|
1043 |
} |
|
|
1044 |
#endif |
|
|
1045 |
|
|
|
1046 |
if (gamestate.weapon != -1) |
|
|
1047 |
{ |
|
|
1048 |
shapenum = weaponscale[gamestate.weapon]+gamestate.weaponframe; |
|
|
1049 |
SimpleScaleShape(viewwidth/2,shapenum,viewheight+1); |
|
|
1050 |
} |
|
|
1051 |
|
|
|
1052 |
if (demorecord || demoplayback) |
|
|
1053 |
SimpleScaleShape(viewwidth/2,SPR_DEMO,viewheight+1); |
|
|
1054 |
} |
|
|
1055 |
|
|
|
1056 |
|
|
|
1057 |
//========================================================================== |
|
|
1058 |
|
|
|
1059 |
|
|
|
1060 |
/* |
|
|
1061 |
===================== |
|
|
1062 |
= |
|
|
1063 |
= CalcTics |
|
|
1064 |
= |
|
|
1065 |
===================== |
|
|
1066 |
*/ |
|
|
1067 |
|
|
|
1068 |
void CalcTics (void) |
|
|
1069 |
{ |
|
|
1070 |
// |
|
|
1071 |
// calculate tics since last refresh for adaptive timing |
|
|
1072 |
// |
|
|
1073 |
if (lasttimecount > (int32_t) GetTimeCount()) |
|
|
1074 |
lasttimecount = GetTimeCount(); // if the game was paused a LONG time |
|
|
1075 |
|
|
|
1076 |
uint32_t curtime = SDL_GetTicks(); |
|
|
1077 |
tics = (curtime * 7) / 100 - lasttimecount; |
|
|
1078 |
if(!tics) |
|
|
1079 |
{ |
|
|
1080 |
// wait until end of current tic |
|
|
1081 |
SDL_Delay(((lasttimecount + 1) * 100) / 7 - curtime); |
|
|
1082 |
tics = 1; |
|
|
1083 |
} |
|
|
1084 |
|
|
|
1085 |
lasttimecount += tics; |
|
|
1086 |
|
|
|
1087 |
if (tics>MAXTICS) |
|
|
1088 |
tics = MAXTICS; |
|
|
1089 |
} |
|
|
1090 |
|
|
|
1091 |
|
|
|
1092 |
//========================================================================== |
|
|
1093 |
|
|
|
1094 |
void AsmRefresh() |
|
|
1095 |
{ |
|
|
1096 |
int32_t xstep,ystep; |
|
|
1097 |
longword xpartial,ypartial; |
|
|
1098 |
boolean playerInPushwallBackTile = tilemap[focaltx][focalty] == 64; |
|
|
1099 |
|
|
|
1100 |
for(pixx=0;pixx |
|
|
1101 |
{ |
|
|
1102 |
short angl=midangle+pixelangle[pixx]; |
|
|
1103 |
if(angl<0) angl+=FINEANGLES; |
|
|
1104 |
if(angl>=3600) angl-=FINEANGLES; |
|
|
1105 |
if(angl<900) |
|
|
1106 |
{ |
|
|
1107 |
xtilestep=1; |
|
|
1108 |
ytilestep=-1; |
|
|
1109 |
xstep=finetangent[900-1-angl]; |
|
|
1110 |
ystep=-finetangent[angl]; |
|
|
1111 |
xpartial=xpartialup; |
|
|
1112 |
ypartial=ypartialdown; |
|
|
1113 |
} |
|
|
1114 |
else if(angl<1800) |
|
|
1115 |
{ |
|
|
1116 |
xtilestep=-1; |
|
|
1117 |
ytilestep=-1; |
|
|
1118 |
xstep=-finetangent[angl-900]; |
|
|
1119 |
ystep=-finetangent[1800-1-angl]; |
|
|
1120 |
xpartial=xpartialdown; |
|
|
1121 |
ypartial=ypartialdown; |
|
|
1122 |
} |
|
|
1123 |
else if(angl<2700) |
|
|
1124 |
{ |
|
|
1125 |
xtilestep=-1; |
|
|
1126 |
ytilestep=1; |
|
|
1127 |
xstep=-finetangent[2700-1-angl]; |
|
|
1128 |
ystep=finetangent[angl-1800]; |
|
|
1129 |
xpartial=xpartialdown; |
|
|
1130 |
ypartial=ypartialup; |
|
|
1131 |
} |
|
|
1132 |
else if(angl<3600) |
|
|
1133 |
{ |
|
|
1134 |
xtilestep=1; |
|
|
1135 |
ytilestep=1; |
|
|
1136 |
xstep=finetangent[angl-2700]; |
|
|
1137 |
ystep=finetangent[3600-1-angl]; |
|
|
1138 |
xpartial=xpartialup; |
|
|
1139 |
ypartial=ypartialup; |
|
|
1140 |
} |
|
|
1141 |
yintercept=FixedMul(ystep,xpartial)+viewy; |
|
|
1142 |
xtile=focaltx+xtilestep; |
|
|
1143 |
xspot=(word)((xtile<>16)); |
|
|
1144 |
xintercept=FixedMul(xstep,ypartial)+viewx; |
|
|
1145 |
ytile=focalty+ytilestep; |
|
|
1146 |
yspot=(word)((((uint32_t)xintercept>>16)< |
|
|
1147 |
texdelta=0; |
|
|
1148 |
|
|
|
1149 |
// Special treatment when player is in back tile of pushwall |
|
|
1150 |
if(playerInPushwallBackTile) |
|
|
1151 |
{ |
|
|
1152 |
if( pwalldir == di_east && xtilestep == 1 |
|
|
1153 |
|| pwalldir == di_west && xtilestep == -1) |
|
|
1154 |
{ |
|
|
1155 |
int32_t yintbuf = yintercept - ((ystep * (64 - pwallpos)) >> 6); |
|
|
1156 |
if((yintbuf >> 16) == focalty) // ray hits pushwall back? |
|
|
1157 |
{ |
|
|
1158 |
if(pwalldir == di_east) |
|
|
1159 |
xintercept = (focaltx << TILESHIFT) + (pwallpos << 10); |
|
|
1160 |
else |
|
|
1161 |
xintercept = (focaltx << TILESHIFT) - TILEGLOBAL + ((64 - pwallpos) << 10); |
|
|
1162 |
yintercept = yintbuf; |
|
|
1163 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1164 |
tilehit = pwalltile; |
|
|
1165 |
HitVertWall(); |
|
|
1166 |
continue; |
|
|
1167 |
} |
|
|
1168 |
} |
|
|
1169 |
else if(pwalldir == di_south && ytilestep == 1 |
|
|
1170 |
|| pwalldir == di_north && ytilestep == -1) |
|
|
1171 |
{ |
|
|
1172 |
int32_t xintbuf = xintercept - ((xstep * (64 - pwallpos)) >> 6); |
|
|
1173 |
if((xintbuf >> 16) == focaltx) // ray hits pushwall back? |
|
|
1174 |
{ |
|
|
1175 |
xintercept = xintbuf; |
|
|
1176 |
if(pwalldir == di_south) |
|
|
1177 |
yintercept = (focalty << TILESHIFT) + (pwallpos << 10); |
|
|
1178 |
else |
|
|
1179 |
yintercept = (focalty << TILESHIFT) - TILEGLOBAL + ((64 - pwallpos) << 10); |
|
|
1180 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1181 |
tilehit = pwalltile; |
|
|
1182 |
HitHorizWall(); |
|
|
1183 |
continue; |
|
|
1184 |
} |
|
|
1185 |
} |
|
|
1186 |
} |
|
|
1187 |
|
|
|
1188 |
do |
|
|
1189 |
{ |
|
|
1190 |
if(ytilestep==-1 && (yintercept>>16)<=ytile) goto horizentry; |
|
|
1191 |
if(ytilestep==1 && (yintercept>>16)>=ytile) goto horizentry; |
|
|
1192 |
vertentry: |
|
|
1193 |
if((uint32_t)yintercept>mapheight*65536-1 || (word)xtile>=mapwidth) |
|
|
1194 |
{ |
|
|
1195 |
if(xtile<0) xintercept=0, xtile=0; |
|
|
1196 |
else if(xtile>=mapwidth) xintercept=mapwidth< |
|
|
1197 |
else xtile=(short) (xintercept >> TILESHIFT); |
|
|
1198 |
if(yintercept<0) yintercept=0, ytile=0; |
|
|
1199 |
else if(yintercept>=(mapheight< |
|
|
1200 |
yspot=0xffff; |
|
|
1201 |
tilehit=0; |
|
|
1202 |
HitHorizBorder(); |
|
|
1203 |
break; |
|
|
1204 |
} |
|
|
1205 |
if(xspot>=maparea) break; |
|
|
1206 |
tilehit=((byte *)tilemap)[xspot]; |
|
|
1207 |
if(tilehit) |
|
|
1208 |
{ |
|
|
1209 |
if(tilehit&0x80) |
|
|
1210 |
{ |
|
|
1211 |
int32_t yintbuf=yintercept+(ystep>>1); |
|
|
1212 |
if((yintbuf>>16)!=(yintercept>>16)) |
|
|
1213 |
goto passvert; |
|
|
1214 |
if((word)yintbuf |
|
|
1215 |
goto passvert; |
|
|
1216 |
yintercept=yintbuf; |
|
|
1217 |
xintercept=(xtile< |
|
|
1218 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1219 |
HitVertDoor(); |
|
|
1220 |
} |
|
|
1221 |
else |
|
|
1222 |
{ |
|
|
1223 |
if(tilehit==64) |
|
|
1224 |
{ |
|
|
1225 |
if(pwalldir==di_west || pwalldir==di_east) |
|
|
1226 |
{ |
|
|
1227 |
int32_t yintbuf; |
|
|
1228 |
int pwallposnorm; |
|
|
1229 |
int pwallposinv; |
|
|
1230 |
if(pwalldir==di_west) |
|
|
1231 |
{ |
|
|
1232 |
pwallposnorm = 64-pwallpos; |
|
|
1233 |
pwallposinv = pwallpos; |
|
|
1234 |
} |
|
|
1235 |
else |
|
|
1236 |
{ |
|
|
1237 |
pwallposnorm = pwallpos; |
|
|
1238 |
pwallposinv = 64-pwallpos; |
|
|
1239 |
} |
|
|
1240 |
if(pwalldir == di_east && xtile==pwallx && ((uint32_t)yintercept>>16)==pwally |
|
|
1241 |
|| pwalldir == di_west && !(xtile==pwallx && ((uint32_t)yintercept>>16)==pwally)) |
|
|
1242 |
{ |
|
|
1243 |
yintbuf=yintercept+((ystep*pwallposnorm)>>6); |
|
|
1244 |
if((yintbuf>>16)!=(yintercept>>16)) |
|
|
1245 |
goto passvert; |
|
|
1246 |
|
|
|
1247 |
xintercept=(xtile< |
|
|
1248 |
yintercept=yintbuf; |
|
|
1249 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1250 |
tilehit=pwalltile; |
|
|
1251 |
HitVertWall(); |
|
|
1252 |
} |
|
|
1253 |
else |
|
|
1254 |
{ |
|
|
1255 |
yintbuf=yintercept+((ystep*pwallposinv)>>6); |
|
|
1256 |
if((yintbuf>>16)!=(yintercept>>16)) |
|
|
1257 |
goto passvert; |
|
|
1258 |
|
|
|
1259 |
xintercept=(xtile< |
|
|
1260 |
yintercept=yintbuf; |
|
|
1261 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1262 |
tilehit=pwalltile; |
|
|
1263 |
HitVertWall(); |
|
|
1264 |
} |
|
|
1265 |
} |
|
|
1266 |
else |
|
|
1267 |
{ |
|
|
1268 |
int pwallposi = pwallpos; |
|
|
1269 |
if(pwalldir==di_north) pwallposi = 64-pwallpos; |
|
|
1270 |
if(pwalldir==di_south && (word)yintercept<(pwallposi<<10) |
|
|
1271 |
|| pwalldir==di_north && (word)yintercept>(pwallposi<<10)) |
|
|
1272 |
{ |
|
|
1273 |
if(((uint32_t)yintercept>>16)==pwally && xtile==pwallx) |
|
|
1274 |
{ |
|
|
1275 |
if(pwalldir==di_south && (int32_t)((word)yintercept)+ystep<(pwallposi<<10) |
|
|
1276 |
|| pwalldir==di_north && (int32_t)((word)yintercept)+ystep>(pwallposi<<10)) |
|
|
1277 |
goto passvert; |
|
|
1278 |
|
|
|
1279 |
if(pwalldir==di_south) |
|
|
1280 |
yintercept=(yintercept&0xffff0000)+(pwallposi<<10); |
|
|
1281 |
else |
|
|
1282 |
yintercept=(yintercept&0xffff0000)-TILEGLOBAL+(pwallposi<<10); |
|
|
1283 |
xintercept=xintercept-((xstep*(64-pwallpos))>>6); |
|
|
1284 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1285 |
tilehit=pwalltile; |
|
|
1286 |
HitHorizWall(); |
|
|
1287 |
} |
|
|
1288 |
else |
|
|
1289 |
{ |
|
|
1290 |
texdelta = -(pwallposi<<10); |
|
|
1291 |
xintercept=xtile< |
|
|
1292 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1293 |
tilehit=pwalltile; |
|
|
1294 |
HitVertWall(); |
|
|
1295 |
} |
|
|
1296 |
} |
|
|
1297 |
else |
|
|
1298 |
{ |
|
|
1299 |
if(((uint32_t)yintercept>>16)==pwally && xtile==pwallx) |
|
|
1300 |
{ |
|
|
1301 |
texdelta = -(pwallposi<<10); |
|
|
1302 |
xintercept=xtile< |
|
|
1303 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1304 |
tilehit=pwalltile; |
|
|
1305 |
HitVertWall(); |
|
|
1306 |
} |
|
|
1307 |
else |
|
|
1308 |
{ |
|
|
1309 |
if(pwalldir==di_south && (int32_t)((word)yintercept)+ystep>(pwallposi<<10) |
|
|
1310 |
|| pwalldir==di_north && (int32_t)((word)yintercept)+ystep<(pwallposi<<10)) |
|
|
1311 |
goto passvert; |
|
|
1312 |
|
|
|
1313 |
if(pwalldir==di_south) |
|
|
1314 |
yintercept=(yintercept&0xffff0000)-((64-pwallpos)<<10); |
|
|
1315 |
else |
|
|
1316 |
yintercept=(yintercept&0xffff0000)+((64-pwallpos)<<10); |
|
|
1317 |
xintercept=xintercept-((xstep*pwallpos)>>6); |
|
|
1318 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1319 |
tilehit=pwalltile; |
|
|
1320 |
HitHorizWall(); |
|
|
1321 |
} |
|
|
1322 |
} |
|
|
1323 |
} |
|
|
1324 |
} |
|
|
1325 |
else |
|
|
1326 |
{ |
|
|
1327 |
xintercept=xtile< |
|
|
1328 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1329 |
HitVertWall(); |
|
|
1330 |
} |
|
|
1331 |
} |
|
|
1332 |
break; |
|
|
1333 |
} |
|
|
1334 |
passvert: |
|
|
1335 |
*((byte *)spotvis+xspot)=1; |
|
|
1336 |
xtile+=xtilestep; |
|
|
1337 |
yintercept+=ystep; |
|
|
1338 |
xspot=(word)((xtile<>16)); |
|
|
1339 |
} |
|
|
1340 |
while(1); |
|
|
1341 |
continue; |
|
|
1342 |
|
|
|
1343 |
do |
|
|
1344 |
{ |
|
|
1345 |
if(xtilestep==-1 && (xintercept>>16)<=xtile) goto vertentry; |
|
|
1346 |
if(xtilestep==1 && (xintercept>>16)>=xtile) goto vertentry; |
|
|
1347 |
horizentry: |
|
|
1348 |
if((uint32_t)xintercept>mapwidth*65536-1 || (word)ytile>=mapheight) |
|
|
1349 |
{ |
|
|
1350 |
if(ytile<0) yintercept=0, ytile=0; |
|
|
1351 |
else if(ytile>=mapheight) yintercept=mapheight< |
|
|
1352 |
else ytile=(short) (yintercept >> TILESHIFT); |
|
|
1353 |
if(xintercept<0) xintercept=0, xtile=0; |
|
|
1354 |
else if(xintercept>=(mapwidth< |
|
|
1355 |
xspot=0xffff; |
|
|
1356 |
tilehit=0; |
|
|
1357 |
HitVertBorder(); |
|
|
1358 |
break; |
|
|
1359 |
} |
|
|
1360 |
if(yspot>=maparea) break; |
|
|
1361 |
tilehit=((byte *)tilemap)[yspot]; |
|
|
1362 |
if(tilehit) |
|
|
1363 |
{ |
|
|
1364 |
if(tilehit&0x80) |
|
|
1365 |
{ |
|
|
1366 |
int32_t xintbuf=xintercept+(xstep>>1); |
|
|
1367 |
if((xintbuf>>16)!=(xintercept>>16)) |
|
|
1368 |
goto passhoriz; |
|
|
1369 |
if((word)xintbuf |
|
|
1370 |
goto passhoriz; |
|
|
1371 |
xintercept=xintbuf; |
|
|
1372 |
yintercept=(ytile< |
|
|
1373 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1374 |
HitHorizDoor(); |
|
|
1375 |
} |
|
|
1376 |
else |
|
|
1377 |
{ |
|
|
1378 |
if(tilehit==64) |
|
|
1379 |
{ |
|
|
1380 |
if(pwalldir==di_north || pwalldir==di_south) |
|
|
1381 |
{ |
|
|
1382 |
int32_t xintbuf; |
|
|
1383 |
int pwallposnorm; |
|
|
1384 |
int pwallposinv; |
|
|
1385 |
if(pwalldir==di_north) |
|
|
1386 |
{ |
|
|
1387 |
pwallposnorm = 64-pwallpos; |
|
|
1388 |
pwallposinv = pwallpos; |
|
|
1389 |
} |
|
|
1390 |
else |
|
|
1391 |
{ |
|
|
1392 |
pwallposnorm = pwallpos; |
|
|
1393 |
pwallposinv = 64-pwallpos; |
|
|
1394 |
} |
|
|
1395 |
if(pwalldir == di_south && ytile==pwally && ((uint32_t)xintercept>>16)==pwallx |
|
|
1396 |
|| pwalldir == di_north && !(ytile==pwally && ((uint32_t)xintercept>>16)==pwallx)) |
|
|
1397 |
{ |
|
|
1398 |
xintbuf=xintercept+((xstep*pwallposnorm)>>6); |
|
|
1399 |
if((xintbuf>>16)!=(xintercept>>16)) |
|
|
1400 |
goto passhoriz; |
|
|
1401 |
|
|
|
1402 |
yintercept=(ytile< |
|
|
1403 |
xintercept=xintbuf; |
|
|
1404 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1405 |
tilehit=pwalltile; |
|
|
1406 |
HitHorizWall(); |
|
|
1407 |
} |
|
|
1408 |
else |
|
|
1409 |
{ |
|
|
1410 |
xintbuf=xintercept+((xstep*pwallposinv)>>6); |
|
|
1411 |
if((xintbuf>>16)!=(xintercept>>16)) |
|
|
1412 |
goto passhoriz; |
|
|
1413 |
|
|
|
1414 |
yintercept=(ytile< |
|
|
1415 |
xintercept=xintbuf; |
|
|
1416 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1417 |
tilehit=pwalltile; |
|
|
1418 |
HitHorizWall(); |
|
|
1419 |
} |
|
|
1420 |
} |
|
|
1421 |
else |
|
|
1422 |
{ |
|
|
1423 |
int pwallposi = pwallpos; |
|
|
1424 |
if(pwalldir==di_west) pwallposi = 64-pwallpos; |
|
|
1425 |
if(pwalldir==di_east && (word)xintercept<(pwallposi<<10) |
|
|
1426 |
|| pwalldir==di_west && (word)xintercept>(pwallposi<<10)) |
|
|
1427 |
{ |
|
|
1428 |
if(((uint32_t)xintercept>>16)==pwallx && ytile==pwally) |
|
|
1429 |
{ |
|
|
1430 |
if(pwalldir==di_east && (int32_t)((word)xintercept)+xstep<(pwallposi<<10) |
|
|
1431 |
|| pwalldir==di_west && (int32_t)((word)xintercept)+xstep>(pwallposi<<10)) |
|
|
1432 |
goto passhoriz; |
|
|
1433 |
|
|
|
1434 |
if(pwalldir==di_east) |
|
|
1435 |
xintercept=(xintercept&0xffff0000)+(pwallposi<<10); |
|
|
1436 |
else |
|
|
1437 |
xintercept=(xintercept&0xffff0000)-TILEGLOBAL+(pwallposi<<10); |
|
|
1438 |
yintercept=yintercept-((ystep*(64-pwallpos))>>6); |
|
|
1439 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1440 |
tilehit=pwalltile; |
|
|
1441 |
HitVertWall(); |
|
|
1442 |
} |
|
|
1443 |
else |
|
|
1444 |
{ |
|
|
1445 |
texdelta = -(pwallposi<<10); |
|
|
1446 |
yintercept=ytile< |
|
|
1447 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1448 |
tilehit=pwalltile; |
|
|
1449 |
HitHorizWall(); |
|
|
1450 |
} |
|
|
1451 |
} |
|
|
1452 |
else |
|
|
1453 |
{ |
|
|
1454 |
if(((uint32_t)xintercept>>16)==pwallx && ytile==pwally) |
|
|
1455 |
{ |
|
|
1456 |
texdelta = -(pwallposi<<10); |
|
|
1457 |
yintercept=ytile< |
|
|
1458 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1459 |
tilehit=pwalltile; |
|
|
1460 |
HitHorizWall(); |
|
|
1461 |
} |
|
|
1462 |
else |
|
|
1463 |
{ |
|
|
1464 |
if(pwalldir==di_east && (int32_t)((word)xintercept)+xstep>(pwallposi<<10) |
|
|
1465 |
|| pwalldir==di_west && (int32_t)((word)xintercept)+xstep<(pwallposi<<10)) |
|
|
1466 |
goto passhoriz; |
|
|
1467 |
|
|
|
1468 |
if(pwalldir==di_east) |
|
|
1469 |
xintercept=(xintercept&0xffff0000)-((64-pwallpos)<<10); |
|
|
1470 |
else |
|
|
1471 |
xintercept=(xintercept&0xffff0000)+((64-pwallpos)<<10); |
|
|
1472 |
yintercept=yintercept-((ystep*pwallpos)>>6); |
|
|
1473 |
ytile = (short) (yintercept >> TILESHIFT); |
|
|
1474 |
tilehit=pwalltile; |
|
|
1475 |
HitVertWall(); |
|
|
1476 |
} |
|
|
1477 |
} |
|
|
1478 |
} |
|
|
1479 |
} |
|
|
1480 |
else |
|
|
1481 |
{ |
|
|
1482 |
yintercept=ytile< |
|
|
1483 |
xtile = (short) (xintercept >> TILESHIFT); |
|
|
1484 |
HitHorizWall(); |
|
|
1485 |
} |
|
|
1486 |
} |
|
|
1487 |
break; |
|
|
1488 |
} |
|
|
1489 |
passhoriz: |
|
|
1490 |
*((byte *)spotvis+yspot)=1; |
|
|
1491 |
ytile+=ytilestep; |
|
|
1492 |
xintercept+=xstep; |
|
|
1493 |
yspot=(word)((((uint32_t)xintercept>>16)< |
|
|
1494 |
} |
|
|
1495 |
while(1); |
|
|
1496 |
} |
|
|
1497 |
} |
|
|
1498 |
|
|
|
1499 |
/* |
|
|
1500 |
==================== |
|
|
1501 |
= |
|
|
1502 |
= WallRefresh |
|
|
1503 |
= |
|
|
1504 |
==================== |
|
|
1505 |
*/ |
|
|
1506 |
|
|
|
1507 |
void WallRefresh (void) |
|
|
1508 |
{ |
|
|
1509 |
xpartialdown = viewx&(TILEGLOBAL-1); |
|
|
1510 |
xpartialup = TILEGLOBAL-xpartialdown; |
|
|
1511 |
ypartialdown = viewy&(TILEGLOBAL-1); |
|
|
1512 |
ypartialup = TILEGLOBAL-ypartialdown; |
|
|
1513 |
|
|
|
1514 |
min_wallheight = viewheight; |
|
|
1515 |
lastside = -1; // the first pixel is on a new wall |
|
|
1516 |
AsmRefresh (); |
|
|
1517 |
ScalePost (); // no more optimization on last post |
|
|
1518 |
} |
|
|
1519 |
|
|
|
1520 |
void CalcViewVariables() |
|
|
1521 |
{ |
|
|
1522 |
viewangle = player->angle; |
|
|
1523 |
midangle = viewangle*(FINEANGLES/ANGLES); |
|
|
1524 |
viewsin = sintable[viewangle]; |
|
|
1525 |
viewcos = costable[viewangle]; |
|
|
1526 |
viewx = player->x - FixedMul(focallength,viewcos); |
|
|
1527 |
viewy = player->y + FixedMul(focallength,viewsin); |
|
|
1528 |
|
|
|
1529 |
focaltx = (short)(viewx>>TILESHIFT); |
|
|
1530 |
focalty = (short)(viewy>>TILESHIFT); |
|
|
1531 |
|
|
|
1532 |
viewtx = (short)(player->x >> TILESHIFT); |
|
|
1533 |
viewty = (short)(player->y >> TILESHIFT); |
|
|
1534 |
} |
|
|
1535 |
|
|
|
1536 |
//========================================================================== |
|
|
1537 |
|
|
|
1538 |
/* |
|
|
1539 |
======================== |
|
|
1540 |
= |
|
|
1541 |
= ThreeDRefresh |
|
|
1542 |
= |
|
|
1543 |
======================== |
|
|
1544 |
*/ |
|
|
1545 |
|
|
|
1546 |
void ThreeDRefresh (void) |
|
|
1547 |
{ |
|
|
1548 |
// |
|
|
1549 |
// clear out the traced array |
|
|
1550 |
// |
|
|
1551 |
memset(spotvis,0,maparea); |
|
|
1552 |
spotvis[player->tilex][player->tiley] = 1; // Detect all sprites over player fix |
|
|
1553 |
|
|
|
1554 |
vbuf = VL_LockSurface(screenBuffer); |
|
|
1555 |
if(vbuf == NULL) return; |
|
|
1556 |
|
|
|
1557 |
vbuf += screenofs; |
|
|
1558 |
vbufPitch = bufferPitch; |
|
|
1559 |
|
|
|
1560 |
CalcViewVariables(); |
|
|
1561 |
|
|
|
1562 |
// |
|
|
1563 |
// follow the walls from there to the right, drawing as we go |
|
|
1564 |
// |
|
|
1565 |
VGAClearScreen (); |
|
|
1566 |
#if defined(USE_FEATUREFLAGS) && defined(USE_STARSKY) |
|
|
1567 |
if(GetFeatureFlags() & FF_STARSKY) |
|
|
1568 |
DrawStarSky(vbuf, vbufPitch); |
|
|
1569 |
#endif |
|
|
1570 |
|
|
|
1571 |
WallRefresh (); |
|
|
1572 |
|
|
|
1573 |
#if defined(USE_FEATUREFLAGS) && defined(USE_PARALLAX) |
|
|
1574 |
if(GetFeatureFlags() & FF_PARALLAXSKY) |
|
|
1575 |
DrawParallax(vbuf, vbufPitch); |
|
|
1576 |
#endif |
|
|
1577 |
#if defined(USE_FEATUREFLAGS) && defined(USE_CLOUDSKY) |
|
|
1578 |
if(GetFeatureFlags() & FF_CLOUDSKY) |
|
|
1579 |
DrawClouds(vbuf, vbufPitch, min_wallheight); |
|
|
1580 |
#endif |
|
|
1581 |
#ifdef USE_FLOORCEILINGTEX |
|
|
1582 |
DrawFloorAndCeiling(vbuf, vbufPitch, min_wallheight); |
|
|
1583 |
#endif |
|
|
1584 |
|
|
|
1585 |
// |
|
|
1586 |
// draw all the scaled images |
|
|
1587 |
// |
|
|
1588 |
DrawScaleds(); // draw scaled stuff |
|
|
1589 |
|
|
|
1590 |
#if defined(USE_FEATUREFLAGS) && defined(USE_RAIN) |
|
|
1591 |
if(GetFeatureFlags() & FF_RAIN) |
|
|
1592 |
DrawRain(vbuf, vbufPitch); |
|
|
1593 |
#endif |
|
|
1594 |
#if defined(USE_FEATUREFLAGS) && defined(USE_SNOW) |
|
|
1595 |
if(GetFeatureFlags() & FF_SNOW) |
|
|
1596 |
DrawSnow(vbuf, vbufPitch); |
|
|
1597 |
#endif |
|
|
1598 |
|
|
|
1599 |
DrawPlayerWeapon (); // draw player's hands |
|
|
1600 |
|
|
|
1601 |
if(Keyboard[sc_Tab] && viewsize == 21 && gamestate.weapon != -1) |
|
|
1602 |
ShowActStatus(); |
|
|
1603 |
|
|
|
1604 |
VL_UnlockSurface(screenBuffer); |
|
|
1605 |
vbuf = NULL; |
|
|
1606 |
|
|
|
1607 |
// |
|
|
1608 |
// show screen and time last cycle |
|
|
1609 |
// |
|
|
1610 |
|
|
|
1611 |
if (fizzlein) |
|
|
1612 |
{ |
|
|
1613 |
FizzleFade(screenBuffer, 0, 0, screenWidth, screenHeight, 20, false); |
|
|
1614 |
fizzlein = false; |
|
|
1615 |
|
|
|
1616 |
lasttimecount = GetTimeCount(); // don't make a big tic count |
|
|
1617 |
} |
|
|
1618 |
else |
|
|
1619 |
{ |
|
|
1620 |
#ifndef REMDEBUG |
|
|
1621 |
if (fpscounter) |
|
|
1622 |
{ |
|
|
1623 |
fontnumber = 0; |
|
|
1624 |
SETFONTCOLOR(7,127); |
|
|
1625 |
PrintX=4; PrintY=1; |
|
|
1626 |
VWB_Bar(0,0,50,10,bordercol); |
|
|
1627 |
US_PrintSigned(fps); |
|
|
1628 |
US_Print(" fps"); |
|
|
1629 |
} |
|
|
1630 |
#endif |
|
|
1631 |
SDL_BlitSurface(screenBuffer, NULL, screen, NULL); |
|
|
1632 |
SDL_Flip(screen); |
|
|
1633 |
} |
|
|
1634 |
|
|
|
1635 |
#ifndef REMDEBUG |
|
|
1636 |
if (fpscounter) |
|
|
1637 |
{ |
|
|
1638 |
fps_frames++; |
|
|
1639 |
fps_time+=tics; |
|
|
1640 |
|
|
|
1641 |
if(fps_time>35) |
|
|
1642 |
{ |
|
|
1643 |
fps_time-=35; |
|
|
1644 |
fps=fps_frames<<1; |
|
|
1645 |
fps_frames=0; |
|
|
1646 |
} |
|
|
1647 |
} |
|
|
1648 |
#endif |
|
|
1649 |
} |