Rev 8557 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
8557 | maxcodehac | 1 | // WL_DRAW.C |
2 | |||
3 | #include "wl_def.h" |
||
9097 | turbocat | 4 | #include |
8557 | maxcodehac | 5 | #pragma hdrstop |
6 | |||
7 | #include "wl_cloudsky.h" |
||
8 | #include "wl_atmos.h" |
||
9 | #include "wl_shade.h" |
||
10 | |||
11 | /* |
||
12 | ============================================================================= |
||
13 | |||
14 | LOCAL CONSTANTS |
||
15 | |||
16 | ============================================================================= |
||
17 | */ |
||
18 | |||
19 | // the door is the last picture before the sprites |
||
20 | #define DOORWALL (PMSpriteStart-8) |
||
21 | |||
22 | #define ACTORSIZE 0x4000 |
||
23 | |||
24 | /* |
||
25 | ============================================================================= |
||
26 | |||
27 | GLOBAL VARIABLES |
||
28 | |||
29 | ============================================================================= |
||
30 | */ |
||
31 | |||
32 | static byte *vbuf = NULL; |
||
33 | unsigned vbufPitch = 0; |
||
34 | |||
35 | int32_t lasttimecount; |
||
36 | int32_t frameon; |
||
37 | boolean fpscounter; |
||
38 | |||
39 | int fps_frames=0, fps_time=0, fps=0; |
||
40 | |||
41 | int *wallheight; |
||
42 | int min_wallheight; |
||
43 | |||
44 | // |
||
45 | // math tables |
||
46 | // |
||
47 | short *pixelangle; |
||
48 | int32_t finetangent[FINEANGLES/4]; |
||
49 | fixed sintable[ANGLES+ANGLES/4]; |
||
50 | fixed *costable = sintable+(ANGLES/4); |
||
51 | |||
52 | // |
||
53 | // refresh variables |
||
54 | // |
||
55 | fixed viewx,viewy; // the focal point |
||
56 | short viewangle; |
||
57 | fixed viewsin,viewcos; |
||
58 | |||
59 | void TransformActor (objtype *ob); |
||
60 | void BuildTables (void); |
||
61 | void ClearScreen (void); |
||
62 | int CalcRotate (objtype *ob); |
||
63 | void DrawScaleds (void); |
||
64 | void CalcTics (void); |
||
65 | void ThreeDRefresh (void); |
||
66 | |||
67 | |||
68 | |||
69 | // |
||
70 | // wall optimization variables |
||
71 | // |
||
72 | int lastside; // true for vertical |
||
73 | int32_t lastintercept; |
||
74 | int lasttilehit; |
||
75 | int lasttexture; |
||
76 | |||
77 | // |
||
78 | // ray tracing variables |
||
79 | // |
||
80 | short focaltx,focalty,viewtx,viewty; |
||
81 | longword xpartialup,xpartialdown,ypartialup,ypartialdown; |
||
82 | |||
83 | short midangle,angle; |
||
84 | |||
85 | word tilehit; |
||
86 | int pixx; |
||
87 | |||
88 | short xtile,ytile; |
||
89 | short xtilestep,ytilestep; |
||
90 | int32_t xintercept,yintercept; |
||
91 | word xstep,ystep; |
||
92 | word xspot,yspot; |
||
93 | int texdelta; |
||
94 | |||
95 | word horizwall[MAXWALLTILES],vertwall[MAXWALLTILES]; |
||
96 | |||
97 | |||
98 | /* |
||
99 | ============================================================================ |
||
100 | |||
101 | 3 - D DEFINITIONS |
||
102 | |||
103 | ============================================================================ |
||
104 | */ |
||
105 | |||
106 | /* |
||
107 | ======================== |
||
108 | = |
||
109 | = TransformActor |
||
110 | = |
||
111 | = Takes paramaters: |
||
112 | = gx,gy : globalx/globaly of point |
||
113 | = |
||
114 | = globals: |
||
115 | = viewx,viewy : point of view |
||
116 | = viewcos,viewsin : sin/cos of viewangle |
||
117 | = scale : conversion from global value to screen value |
||
118 | = |
||
119 | = sets: |
||
120 | = screenx,transx,transy,screenheight: projected edge location and size |
||
121 | = |
||
122 | ======================== |
||
123 | */ |
||
124 | |||
125 | |||
126 | // |
||
127 | // transform actor |
||
128 | // |
||
129 | void TransformActor (objtype *ob) |
||
130 | { |
||
131 | fixed gx,gy,gxt,gyt,nx,ny; |
||
132 | |||
133 | // |
||
134 | // translate point to view centered coordinates |
||
135 | // |
||
136 | gx = ob->x-viewx; |
||
137 | gy = ob->y-viewy; |
||
138 | |||
139 | // |
||
140 | // calculate newx |
||
141 | // |
||
142 | gxt = FixedMul(gx,viewcos); |
||
143 | gyt = FixedMul(gy,viewsin); |
||
144 | nx = gxt-gyt-ACTORSIZE; // fudge the shape forward a bit, because |
||
145 | // the midpoint could put parts of the shape |
||
146 | // into an adjacent wall |
||
147 | |||
148 | // |
||
149 | // calculate newy |
||
150 | // |
||
151 | gxt = FixedMul(gx,viewsin); |
||
152 | gyt = FixedMul(gy,viewcos); |
||
153 | ny = gyt+gxt; |
||
154 | |||
155 | // |
||
156 | // calculate perspective ratio |
||
157 | // |
||
158 | ob->transx = nx; |
||
159 | ob->transy = ny; |
||
160 | |||
161 | if (nx |
||
162 | { |
||
163 | ob->viewheight = 0; |
||
164 | return; |
||
165 | } |
||
166 | |||
167 | ob->viewx = (word)(centerx + ny*scale/nx); |
||
168 | |||
169 | // |
||
170 | // calculate height (heightnumerator/(nx>>8)) |
||
171 | // |
||
172 | ob->viewheight = (word)(heightnumerator/(nx>>8)); |
||
173 | } |
||
174 | |||
175 | //========================================================================== |
||
176 | |||
177 | /* |
||
178 | ======================== |
||
179 | = |
||
180 | = TransformTile |
||
181 | = |
||
182 | = Takes paramaters: |
||
183 | = tx,ty : tile the object is centered in |
||
184 | = |
||
185 | = globals: |
||
186 | = viewx,viewy : point of view |
||
187 | = viewcos,viewsin : sin/cos of viewangle |
||
188 | = scale : conversion from global value to screen value |
||
189 | = |
||
190 | = sets: |
||
191 | = screenx,transx,transy,screenheight: projected edge location and size |
||
192 | = |
||
193 | = Returns true if the tile is withing getting distance |
||
194 | = |
||
195 | ======================== |
||
196 | */ |
||
197 | |||
198 | boolean TransformTile (int tx, int ty, short *dispx, short *dispheight) |
||
199 | { |
||
200 | fixed gx,gy,gxt,gyt,nx,ny; |
||
201 | |||
202 | // |
||
203 | // translate point to view centered coordinates |
||
204 | // |
||
205 | gx = ((int32_t)tx< |
||
206 | gy = ((int32_t)ty< |
||
207 | |||
208 | // |
||
209 | // calculate newx |
||
210 | // |
||
211 | gxt = FixedMul(gx,viewcos); |
||
212 | gyt = FixedMul(gy,viewsin); |
||
213 | nx = gxt-gyt-0x2000; // 0x2000 is size of object |
||
214 | |||
215 | // |
||
216 | // calculate newy |
||
217 | // |
||
218 | gxt = FixedMul(gx,viewsin); |
||
219 | gyt = FixedMul(gy,viewcos); |
||
220 | ny = gyt+gxt; |
||
221 | |||
222 | |||
223 | // |
||
224 | // calculate height / perspective ratio |
||
225 | // |
||
226 | if (nx |
||
227 | *dispheight = 0; |
||
228 | else |
||
229 | { |
||
230 | *dispx = (short)(centerx + ny*scale/nx); |
||
231 | *dispheight = (short)(heightnumerator/(nx>>8)); |
||
232 | } |
||
233 | |||
234 | // |
||
235 | // see if it should be grabbed |
||
236 | // |
||
237 | if (nx |
||
238 | return true; |
||
239 | else |
||
240 | return false; |
||
241 | } |
||
242 | |||
243 | //========================================================================== |
||
244 | |||
245 | /* |
||
246 | ==================== |
||
247 | = |
||
248 | = CalcHeight |
||
249 | = |
||
250 | = Calculates the height of xintercept,yintercept from viewx,viewy |
||
251 | = |
||
252 | ==================== |
||
253 | */ |
||
254 | |||
255 | int CalcHeight() |
||
256 | { |
||
257 | fixed z = FixedMul(xintercept - viewx, viewcos) |
||
258 | - FixedMul(yintercept - viewy, viewsin); |
||
259 | if(z < MINDIST) z = MINDIST; |
||
260 | int height = heightnumerator / (z >> 8); |
||
261 | if(height < min_wallheight) min_wallheight = height; |
||
262 | return height; |
||
263 | } |
||
264 | |||
265 | //========================================================================== |
||
266 | |||
267 | /* |
||
268 | =================== |
||
269 | = |
||
270 | = ScalePost |
||
271 | = |
||
272 | =================== |
||
273 | */ |
||
274 | |||
275 | byte *postsource; |
||
276 | int postx; |
||
277 | int postwidth; |
||
278 | |||
279 | void ScalePost() |
||
280 | { |
||
281 | int ywcount, yoffs, yw, yd, yendoffs; |
||
282 | byte col; |
||
283 | |||
284 | #ifdef USE_SHADING |
||
285 | byte *curshades = shadetable[GetShade(wallheight[postx])]; |
||
286 | #endif |
||
287 | |||
288 | ywcount = yd = wallheight[postx] >> 3; |
||
289 | if(yd <= 0) yd = 100; |
||
290 | |||
291 | yoffs = (viewheight / 2 - ywcount) * vbufPitch; |
||
292 | if(yoffs < 0) yoffs = 0; |
||
293 | yoffs += postx; |
||
294 | |||
295 | yendoffs = viewheight / 2 + ywcount - 1; |
||
296 | yw=TEXTURESIZE-1; |
||
297 | |||
298 | while(yendoffs >= viewheight) |
||
299 | { |
||
300 | ywcount -= TEXTURESIZE/2; |
||
301 | while(ywcount <= 0) |
||
302 | { |
||
303 | ywcount += yd; |
||
304 | yw--; |
||
305 | } |
||
306 | yendoffs--; |
||
307 | } |
||
308 | if(yw < 0) return; |
||
309 | |||
310 | #ifdef USE_SHADING |
||
311 | col = curshades[postsource[yw]]; |
||
312 | #else |
||
313 | col = postsource[yw]; |
||
314 | #endif |
||
315 | yendoffs = yendoffs * vbufPitch + postx; |
||
316 | while(yoffs <= yendoffs) |
||
317 | { |
||
318 | vbuf[yendoffs] = col; |
||
319 | ywcount -= TEXTURESIZE/2; |
||
320 | if(ywcount <= 0) |
||
321 | { |
||
322 | do |
||
323 | { |
||
324 | ywcount += yd; |
||
325 | yw--; |
||
326 | } |
||
327 | while(ywcount <= 0); |
||
328 | if(yw < 0) break; |
||
329 | #ifdef USE_SHADING |
||
330 | col = curshades[postsource[yw]]; |
||
331 | #else |
||
332 | col = postsource[yw]; |
||
333 | #endif |
||
334 | } |
||
335 | yendoffs -= vbufPitch; |
||
336 | } |
||
337 | } |
||
338 | |||
339 | void GlobalScalePost(byte *vidbuf, unsigned pitch) |
||
340 | { |
||
341 | vbuf = vidbuf; |
||
342 | vbufPitch = pitch; |
||
343 | ScalePost(); |
||
344 | } |
||
345 | |||
346 | /* |
||
347 | ==================== |
||
348 | = |
||
349 | = HitVertWall |
||
350 | = |
||
351 | = tilehit bit 7 is 0, because it's not a door tile |
||
352 | = if bit 6 is 1 and the adjacent tile is a door tile, use door side pic |
||
353 | = |
||
354 | ==================== |
||
355 | */ |
||
356 | |||
357 | void HitVertWall (void) |
||
358 | { |
||
359 | int wallpic; |
||
360 | int texture; |
||
361 | |||
362 | texture = ((yintercept+texdelta)>>TEXTUREFROMFIXEDSHIFT)&TEXTUREMASK; |
||
363 | if (xtilestep == -1) |
||
364 | { |
||
365 | texture = TEXTUREMASK-texture; |
||
366 | xintercept += TILEGLOBAL; |
||
367 | } |
||
368 | |||
369 | if(lastside==1 && lastintercept==xtile && lasttilehit==tilehit && !(lasttilehit & 0x40)) |
||
370 | { |
||
371 | if((pixx&3) && texture == lasttexture) |
||
372 | { |
||
373 | ScalePost(); |
||
374 | postx = pixx; |
||
375 | wallheight[pixx] = wallheight[pixx-1]; |
||
376 | return; |
||
377 | } |
||
378 | ScalePost(); |
||
379 | wallheight[pixx] = CalcHeight(); |
||
380 | postsource+=texture-lasttexture; |
||
381 | postwidth=1; |
||
382 | postx=pixx; |
||
383 | lasttexture=texture; |
||
384 | return; |
||
385 | } |
||
386 | |||
387 | if(lastside!=-1) ScalePost(); |
||
388 | |||
389 | lastside=1; |
||
390 | lastintercept=xtile; |
||
391 | lasttilehit=tilehit; |
||
392 | lasttexture=texture; |
||
393 | wallheight[pixx] = CalcHeight(); |
||
394 | postx = pixx; |
||
395 | postwidth = 1; |
||
396 | |||
397 | if (tilehit & 0x40) |
||
398 | { // check for adjacent doors |
||
399 | ytile = (short)(yintercept>>TILESHIFT); |
||
400 | if ( tilemap[xtile-xtilestep][ytile]&0x80 ) |
||
401 | wallpic = DOORWALL+3; |
||
402 | else |
||
403 | wallpic = vertwall[tilehit & ~0x40]; |
||
404 | } |
||
405 | else |
||
406 | wallpic = vertwall[tilehit]; |
||
407 | |||
408 | postsource = PM_GetTexture(wallpic) + texture; |
||
409 | } |
||
410 | |||
411 | |||
412 | /* |
||
413 | ==================== |
||
414 | = |
||
415 | = HitHorizWall |
||
416 | = |
||
417 | = tilehit bit 7 is 0, because it's not a door tile |
||
418 | = if bit 6 is 1 and the adjacent tile is a door tile, use door side pic |
||
419 | = |
||
420 | ==================== |
||
421 | */ |
||
422 | |||
423 | void HitHorizWall (void) |
||
424 | { |
||
425 | int wallpic; |
||
426 | int texture; |
||
427 | |||
428 | texture = ((xintercept+texdelta)>>TEXTUREFROMFIXEDSHIFT)&TEXTUREMASK; |
||
429 | if (ytilestep == -1) |
||
430 | yintercept += TILEGLOBAL; |
||
431 | else |
||
432 | texture = TEXTUREMASK-texture; |
||
433 | |||
434 | if(lastside==0 && lastintercept==ytile && lasttilehit==tilehit && !(lasttilehit & 0x40)) |
||
435 | { |
||
436 | if((pixx&3) && texture == lasttexture) |
||
437 | { |
||
438 | ScalePost(); |
||
439 | postx=pixx; |
||
440 | wallheight[pixx] = wallheight[pixx-1]; |
||
441 | return; |
||
442 | } |
||
443 | ScalePost(); |
||
444 | wallheight[pixx] = CalcHeight(); |
||
445 | postsource+=texture-lasttexture; |
||
446 | postwidth=1; |
||
447 | postx=pixx; |
||
448 | lasttexture=texture; |
||
449 | return; |
||
450 | } |
||
451 | |||
452 | if(lastside!=-1) ScalePost(); |
||
453 | |||
454 | lastside=0; |
||
455 | lastintercept=ytile; |
||
456 | lasttilehit=tilehit; |
||
457 | lasttexture=texture; |
||
458 | wallheight[pixx] = CalcHeight(); |
||
459 | postx = pixx; |
||
460 | postwidth = 1; |
||
461 | |||
462 | if (tilehit & 0x40) |
||
463 | { // check for adjacent doors |
||
464 | xtile = (short)(xintercept>>TILESHIFT); |
||
465 | if ( tilemap[xtile][ytile-ytilestep]&0x80) |
||
466 | wallpic = DOORWALL+2; |
||
467 | else |
||
468 | wallpic = horizwall[tilehit & ~0x40]; |
||
469 | } |
||
470 | else |
||
471 | wallpic = horizwall[tilehit]; |
||
472 | |||
473 | postsource = PM_GetTexture(wallpic) + texture; |
||
474 | } |
||
475 | |||
476 | //========================================================================== |
||
477 | |||
478 | /* |
||
479 | ==================== |
||
480 | = |
||
481 | = HitHorizDoor |
||
482 | = |
||
483 | ==================== |
||
484 | */ |
||
485 | |||
486 | void HitHorizDoor (void) |
||
487 | { |
||
488 | int doorpage; |
||
489 | int doornum; |
||
490 | int texture; |
||
491 | |||
492 | doornum = tilehit&0x7f; |
||
493 | texture = ((xintercept-doorposition[doornum])>>TEXTUREFROMFIXEDSHIFT)&TEXTUREMASK; |
||
494 | |||
495 | if(lasttilehit==tilehit) |
||
496 | { |
||
497 | if((pixx&3) && texture == lasttexture) |
||
498 | { |
||
499 | ScalePost(); |
||
500 | postx=pixx; |
||
501 | wallheight[pixx] = wallheight[pixx-1]; |
||
502 | return; |
||
503 | } |
||
504 | ScalePost(); |
||
505 | wallheight[pixx] = CalcHeight(); |
||
506 | postsource+=texture-lasttexture; |
||
507 | postwidth=1; |
||
508 | postx=pixx; |
||
509 | lasttexture=texture; |
||
510 | return; |
||
511 | } |
||
512 | |||
513 | if(lastside!=-1) ScalePost(); |
||
514 | |||
515 | lastside=2; |
||
516 | lasttilehit=tilehit; |
||
517 | lasttexture=texture; |
||
518 | wallheight[pixx] = CalcHeight(); |
||
519 | postx = pixx; |
||
520 | postwidth = 1; |
||
521 | |||
522 | switch(doorobjlist[doornum].lock) |
||
523 | { |
||
524 | case dr_normal: |
||
525 | doorpage = DOORWALL; |
||
526 | break; |
||
527 | case dr_lock1: |
||
528 | case dr_lock2: |
||
529 | case dr_lock3: |
||
530 | case dr_lock4: |
||
531 | doorpage = DOORWALL+6; |
||
532 | break; |
||
533 | case dr_elevator: |
||
534 | doorpage = DOORWALL+4; |
||
535 | break; |
||
536 | } |
||
537 | |||
538 | postsource = PM_GetTexture(doorpage) + texture; |
||
539 | } |
||
540 | |||
541 | //========================================================================== |
||
542 | |||
543 | /* |
||
544 | ==================== |
||
545 | = |
||
546 | = HitVertDoor |
||
547 | = |
||
548 | ==================== |
||
549 | */ |
||
550 | |||
551 | void HitVertDoor (void) |
||
552 | { |
||
553 | int doorpage; |
||
554 | int doornum; |
||
555 | int texture; |
||
556 | |||
557 | doornum = tilehit&0x7f; |
||
558 | texture = ((yintercept-doorposition[doornum])>>TEXTUREFROMFIXEDSHIFT)&TEXTUREMASK; |
||
559 | |||
560 | if(lasttilehit==tilehit) |
||
561 | { |
||
562 | if((pixx&3) && texture == lasttexture) |
||
563 | { |
||
564 | ScalePost(); |
||
565 | postx=pixx; |
||
566 | wallheight[pixx] = wallheight[pixx-1]; |
||
567 | return; |
||
568 | } |
||
569 | ScalePost(); |
||
570 | wallheight[pixx] = CalcHeight(); |
||
571 | postsource+=texture-lasttexture; |
||
572 | postwidth=1; |
||
573 | postx=pixx; |
||
574 | lasttexture=texture; |
||
575 | return; |
||
576 | } |
||
577 | |||
578 | if(lastside!=-1) ScalePost(); |
||
579 | |||
580 | lastside=2; |
||
581 | lasttilehit=tilehit; |
||
582 | lasttexture=texture; |
||
583 | wallheight[pixx] = CalcHeight(); |
||
584 | postx = pixx; |
||
585 | postwidth = 1; |
||
586 | |||
587 | switch(doorobjlist[doornum].lock) |
||
588 | { |
||
589 | case dr_normal: |
||
590 | doorpage = DOORWALL+1; |
||
591 | break; |
||
592 | case dr_lock1: |
||
593 | case dr_lock2: |
||
594 | case dr_lock3: |
||
595 | case dr_lock4: |
||
596 | doorpage = DOORWALL+7; |
||
597 | break; |
||
598 | case dr_elevator: |
||
599 | doorpage = DOORWALL+5; |
||
600 | break; |
||
601 | } |
||
602 | |||
603 | postsource = PM_GetTexture(doorpage) + texture; |
||
604 | } |
||
605 | |||
606 | //========================================================================== |
||
607 | |||
608 | #define HitHorizBorder HitHorizWall |
||
609 | #define HitVertBorder HitVertWall |
||
610 | |||
611 | //========================================================================== |
||
612 | |||
613 | byte vgaCeiling[]= |
||
614 | { |
||
615 | #ifndef SPEAR |
||
616 | 0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0x1d,0xbf, |
||
617 | 0x4e,0x4e,0x4e,0x1d,0x8d,0x4e,0x1d,0x2d,0x1d,0x8d, |
||
618 | 0x1d,0x1d,0x1d,0x1d,0x1d,0x2d,0xdd,0x1d,0x1d,0x98, |
||
619 | |||
620 | 0x1d,0x9d,0x2d,0xdd,0xdd,0x9d,0x2d,0x4d,0x1d,0xdd, |
||
621 | 0x7d,0x1d,0x2d,0x2d,0xdd,0xd7,0x1d,0x1d,0x1d,0x2d, |
||
622 | 0x1d,0x1d,0x1d,0x1d,0xdd,0xdd,0x7d,0xdd,0xdd,0xdd |
||
623 | #else |
||
624 | 0x6f,0x4f,0x1d,0xde,0xdf,0x2e,0x7f,0x9e,0xae,0x7f, |
||
625 | 0x1d,0xde,0xdf,0xde,0xdf,0xde,0xe1,0xdc,0x2e,0x1d,0xdc |
||
626 | #endif |
||
627 | }; |
||
628 | |||
629 | /* |
||
630 | ===================== |
||
631 | = |
||
632 | = VGAClearScreen |
||
633 | = |
||
634 | ===================== |
||
635 | */ |
||
636 | |||
637 | void VGAClearScreen (void) |
||
638 | { |
||
639 | byte ceiling=vgaCeiling[gamestate.episode*10+mapon]; |
||
640 | |||
641 | int y; |
||
642 | byte *ptr = vbuf; |
||
643 | #ifdef USE_SHADING |
||
644 | for(y = 0; y < viewheight / 2; y++, ptr += vbufPitch) |
||
645 | memset(ptr, shadetable[GetShade((viewheight / 2 - y) << 3)][ceiling], viewwidth); |
||
646 | for(; y < viewheight; y++, ptr += vbufPitch) |
||
647 | memset(ptr, shadetable[GetShade((y - viewheight / 2) << 3)][0x19], viewwidth); |
||
648 | #else |
||
649 | for(y = 0; y < viewheight / 2; y++, ptr += vbufPitch) |
||
650 | memset(ptr, ceiling, viewwidth); |
||
651 | for(; y < viewheight; y++, ptr += vbufPitch) |
||
652 | memset(ptr, 0x19, viewwidth); |
||
653 | #endif |
||
654 | } |
||
655 | |||
656 | //========================================================================== |
||
657 | |||
658 | /* |
||
659 | ===================== |
||
660 | = |
||
661 | = CalcRotate |
||
662 | = |
||
663 | ===================== |
||
664 | */ |
||
665 | |||
666 | int CalcRotate (objtype *ob) |
||
667 | { |
||
668 | int angle, viewangle; |
||
669 | |||
670 | // this isn't exactly correct, as it should vary by a trig value, |
||
671 | // but it is close enough with only eight rotations |
||
672 | |||
673 | viewangle = player->angle + (centerx - ob->viewx)/8; |
||
674 | |||
675 | if (ob->obclass == rocketobj || ob->obclass == hrocketobj) |
||
676 | angle = (viewangle-180) - ob->angle; |
||
677 | else |
||
678 | angle = (viewangle-180) - dirangle[ob->dir]; |
||
679 | |||
680 | angle+=ANGLES/16; |
||
681 | while (angle>=ANGLES) |
||
682 | angle-=ANGLES; |
||
683 | while (angle<0) |
||
684 | angle+=ANGLES; |
||
685 | |||
686 | if (ob->state->rotate == 2) // 2 rotation pain frame |
||
687 | return 0; // pain with shooting frame bugfix |
||
688 | |||
689 | return angle/(ANGLES/8); |
||
690 | } |
||
691 | |||
692 | void ScaleShape (int xcenter, int shapenum, unsigned height, uint32_t flags) |
||
693 | { |
||
694 | t_compshape *shape; |
||
695 | unsigned scale,pixheight; |
||
696 | unsigned starty,endy; |
||
697 | word *cmdptr; |
||
698 | byte *cline; |
||
699 | byte *line; |
||
700 | byte *vmem; |
||
701 | int actx,i,upperedge; |
||
702 | short newstart; |
||
703 | int scrstarty,screndy,lpix,rpix,pixcnt,ycnt; |
||
704 | unsigned j; |
||
705 | byte col; |
||
706 | |||
707 | #ifdef USE_SHADING |
||
708 | byte *curshades; |
||
709 | if(flags & FL_FULLBRIGHT) |
||
710 | curshades = shadetable[0]; |
||
711 | else |
||
712 | curshades = shadetable[GetShade(height)]; |
||
713 | #endif |
||
714 | |||
715 | shape = (t_compshape *) PM_GetSprite(shapenum); |
||
716 | |||
717 | scale=height>>3; // low three bits are fractional |
||
718 | if(!scale) return; // too close or far away |
||
719 | |||
720 | pixheight=scale*SPRITESCALEFACTOR; |
||
721 | actx=xcenter-scale; |
||
722 | upperedge=viewheight/2-scale; |
||
723 | |||
724 | cmdptr=(word *) shape->dataofs; |
||
725 | |||
726 | for(i=shape->leftpix,pixcnt=i*pixheight,rpix=(pixcnt>>6)+actx;i<=shape->rightpix;i++,cmdptr++) |
||
727 | { |
||
728 | lpix=rpix; |
||
729 | if(lpix>=viewwidth) break; |
||
730 | pixcnt+=pixheight; |
||
731 | rpix=(pixcnt>>6)+actx; |
||
732 | if(lpix!=rpix && rpix>0) |
||
733 | { |
||
734 | if(lpix<0) lpix=0; |
||
735 | if(rpix>viewwidth) rpix=viewwidth,i=shape->rightpix+1; |
||
736 | cline=(byte *)shape + *cmdptr; |
||
737 | while(lpix |
||
738 | { |
||
739 | if(wallheight[lpix]<=(int)height) |
||
740 | { |
||
741 | line=cline; |
||
742 | while((endy = READWORD(line)) != 0) |
||
743 | { |
||
744 | endy >>= 1; |
||
745 | newstart = READWORD(line); |
||
746 | starty = READWORD(line) >> 1; |
||
747 | j=starty; |
||
748 | ycnt=j*pixheight; |
||
749 | screndy=(ycnt>>6)+upperedge; |
||
750 | if(screndy<0) vmem=vbuf+lpix; |
||
751 | else vmem=vbuf+screndy*vbufPitch+lpix; |
||
752 | for(;j |
||
753 | { |
||
754 | scrstarty=screndy; |
||
755 | ycnt+=pixheight; |
||
756 | screndy=(ycnt>>6)+upperedge; |
||
757 | if(scrstarty!=screndy && screndy>0) |
||
758 | { |
||
759 | #ifdef USE_SHADING |
||
760 | col=curshades[((byte *)shape)[newstart+j]]; |
||
761 | #else |
||
762 | col=((byte *)shape)[newstart+j]; |
||
763 | #endif |
||
764 | if(scrstarty<0) scrstarty=0; |
||
765 | if(screndy>viewheight) screndy=viewheight,j=endy; |
||
766 | |||
767 | while(scrstarty |
||
768 | { |
||
769 | *vmem=col; |
||
770 | vmem+=vbufPitch; |
||
771 | scrstarty++; |
||
772 | } |
||
773 | } |
||
774 | } |
||
775 | } |
||
776 | } |
||
777 | lpix++; |
||
778 | } |
||
779 | } |
||
780 | } |
||
781 | } |
||
782 | |||
783 | void SimpleScaleShape (int xcenter, int shapenum, unsigned height) |
||
784 | { |
||
785 | t_compshape *shape; |
||
786 | unsigned scale,pixheight; |
||
787 | unsigned starty,endy; |
||
788 | word *cmdptr; |
||
789 | byte *cline; |
||
790 | byte *line; |
||
791 | int actx,i,upperedge; |
||
792 | short newstart; |
||
793 | int scrstarty,screndy,lpix,rpix,pixcnt,ycnt; |
||
794 | unsigned j; |
||
795 | byte col; |
||
796 | byte *vmem; |
||
797 | |||
798 | shape = (t_compshape *) PM_GetSprite(shapenum); |
||
799 | |||
800 | scale=height>>1; |
||
801 | pixheight=scale*SPRITESCALEFACTOR; |
||
802 | actx=xcenter-scale; |
||
803 | upperedge=viewheight/2-scale; |
||
804 | |||
805 | cmdptr=shape->dataofs; |
||
806 | |||
807 | for(i=shape->leftpix,pixcnt=i*pixheight,rpix=(pixcnt>>6)+actx;i<=shape->rightpix;i++,cmdptr++) |
||
808 | { |
||
809 | lpix=rpix; |
||
810 | if(lpix>=viewwidth) break; |
||
811 | pixcnt+=pixheight; |
||
812 | rpix=(pixcnt>>6)+actx; |
||
813 | if(lpix!=rpix && rpix>0) |
||
814 | { |
||
815 | if(lpix<0) lpix=0; |
||
816 | if(rpix>viewwidth) rpix=viewwidth,i=shape->rightpix+1; |
||
817 | cline = (byte *)shape + *cmdptr; |
||
818 | while(lpix |
||
819 | { |
||
820 | line=cline; |
||
821 | while((endy = READWORD(line)) != 0) |
||
822 | { |
||
823 | endy >>= 1; |
||
824 | newstart = READWORD(line); |
||
825 | starty = READWORD(line) >> 1; |
||
826 | j=starty; |
||
827 | ycnt=j*pixheight; |
||
828 | screndy=(ycnt>>6)+upperedge; |
||
829 | if(screndy<0) vmem=vbuf+lpix; |
||
830 | else vmem=vbuf+screndy*vbufPitch+lpix; |
||
831 | for(;j |
||
832 | { |
||
833 | scrstarty=screndy; |
||
834 | ycnt+=pixheight; |
||
835 | screndy=(ycnt>>6)+upperedge; |
||
836 | if(scrstarty!=screndy && screndy>0) |
||
837 | { |
||
838 | col=((byte *)shape)[newstart+j]; |
||
839 | if(scrstarty<0) scrstarty=0; |
||
840 | if(screndy>viewheight) screndy=viewheight,j=endy; |
||
841 | |||
842 | while(scrstarty |
||
843 | { |
||
844 | *vmem=col; |
||
845 | vmem+=vbufPitch; |
||
846 | scrstarty++; |
||
847 | } |
||
848 | } |
||
849 | } |
||
850 | } |
||
851 | lpix++; |
||
852 | } |
||
853 | } |
||
854 | } |
||
855 | } |
||
856 | |||
857 | /* |
||
858 | ===================== |
||
859 | = |
||
860 | = DrawScaleds |
||
861 | = |
||
862 | = Draws all objects that are visable |
||
863 | = |
||
864 | ===================== |
||
865 | */ |
||
866 | |||
867 | #define MAXVISABLE 250 |
||
868 | |||
869 | typedef struct |
||
870 | { |
||
871 | short viewx, |
||
872 | viewheight, |
||
873 | shapenum; |
||
874 | short flags; // this must be changed to uint32_t, when you |
||
875 | // you need more than 16-flags for drawing |
||
876 | #ifdef USE_DIR3DSPR |
||
877 | statobj_t *transsprite; |
||
878 | #endif |
||
879 | } visobj_t; |
||
880 | |||
881 | visobj_t vislist[MAXVISABLE]; |
||
882 | visobj_t *visptr,*visstep,*farthest; |
||
883 | |||
884 | void DrawScaleds (void) |
||
885 | { |
||
886 | int i,least,numvisable,height; |
||
887 | byte *tilespot,*visspot; |
||
888 | unsigned spotloc; |
||
889 | |||
890 | statobj_t *statptr; |
||
891 | objtype *obj; |
||
892 | |||
893 | visptr = &vislist[0]; |
||
894 | |||
895 | // |
||
896 | // place static objects |
||
897 | // |
||
898 | for (statptr = &statobjlist[0] ; statptr !=laststatobj ; statptr++) |
||
899 | { |
||
900 | if ((visptr->shapenum = statptr->shapenum) == -1) |
||
901 | continue; // object has been deleted |
||
902 | |||
903 | if (!*statptr->visspot) |
||
904 | continue; // not visable |
||
905 | |||
906 | if (TransformTile (statptr->tilex,statptr->tiley, |
||
907 | &visptr->viewx,&visptr->viewheight) && statptr->flags & FL_BONUS) |
||
908 | { |
||
909 | GetBonus (statptr); |
||
910 | if(statptr->shapenum == -1) |
||
911 | continue; // object has been taken |
||
912 | } |
||
913 | |||
914 | if (!visptr->viewheight) |
||
915 | continue; // to close to the object |
||
916 | |||
917 | #ifdef USE_DIR3DSPR |
||
918 | if(statptr->flags & FL_DIR_MASK) |
||
919 | visptr->transsprite=statptr; |
||
920 | else |
||
921 | visptr->transsprite=NULL; |
||
922 | #endif |
||
923 | |||
924 | if (visptr < &vislist[MAXVISABLE-1]) // don't let it overflow |
||
925 | { |
||
926 | visptr->flags = (short) statptr->flags; |
||
927 | visptr++; |
||
928 | } |
||
929 | } |
||
930 | |||
931 | // |
||
932 | // place active objects |
||
933 | // |
||
934 | for (obj = player->next;obj;obj=obj->next) |
||
935 | { |
||
936 | if ((visptr->shapenum = obj->state->shapenum)==0) |
||
937 | continue; // no shape |
||
938 | |||
939 | spotloc = (obj->tilex< |
||
940 | visspot = &spotvis[0][0]+spotloc; |
||
941 | tilespot = &tilemap[0][0]+spotloc; |
||
942 | |||
943 | // |
||
944 | // could be in any of the nine surrounding tiles |
||
945 | // |
||
946 | if (*visspot |
||
947 | || ( *(visspot-1) && !*(tilespot-1) ) |
||
948 | || ( *(visspot+1) && !*(tilespot+1) ) |
||
949 | || ( *(visspot-65) && !*(tilespot-65) ) |
||
950 | || ( *(visspot-64) && !*(tilespot-64) ) |
||
951 | || ( *(visspot-63) && !*(tilespot-63) ) |
||
952 | || ( *(visspot+65) && !*(tilespot+65) ) |
||
953 | || ( *(visspot+64) && !*(tilespot+64) ) |
||
954 | || ( *(visspot+63) && !*(tilespot+63) ) ) |
||
955 | { |
||
956 | obj->active = ac_yes; |
||
957 | TransformActor (obj); |
||
958 | if (!obj->viewheight) |
||
959 | continue; // too close or far away |
||
960 | |||
961 | visptr->viewx = obj->viewx; |
||
962 | visptr->viewheight = obj->viewheight; |
||
963 | if (visptr->shapenum == -1) |
||
964 | visptr->shapenum = obj->temp1; // special shape |
||
965 | |||
966 | if (obj->state->rotate) |
||
967 | visptr->shapenum += CalcRotate (obj); |
||
968 | |||
969 | if (visptr < &vislist[MAXVISABLE-1]) // don't let it overflow |
||
970 | { |
||
971 | visptr->flags = (short) obj->flags; |
||
972 | #ifdef USE_DIR3DSPR |
||
973 | visptr->transsprite = NULL; |
||
974 | #endif |
||
975 | visptr++; |
||
976 | } |
||
977 | obj->flags |= FL_VISABLE; |
||
978 | } |
||
979 | else |
||
980 | obj->flags &= ~FL_VISABLE; |
||
981 | } |
||
982 | |||
983 | // |
||
984 | // draw from back to front |
||
985 | // |
||
986 | numvisable = (int) (visptr-&vislist[0]); |
||
987 | |||
988 | if (!numvisable) |
||
989 | return; // no visable objects |
||
990 | |||
991 | for (i = 0; i |
||
992 | { |
||
993 | least = 32000; |
||
994 | for (visstep=&vislist[0] ; visstep |
||
995 | { |
||
996 | height = visstep->viewheight; |
||
997 | if (height < least) |
||
998 | { |
||
999 | least = height; |
||
1000 | farthest = visstep; |
||
1001 | } |
||
1002 | } |
||
1003 | // |
||
1004 | // draw farthest |
||
1005 | // |
||
1006 | #ifdef USE_DIR3DSPR |
||
1007 | if(farthest->transsprite) |
||
1008 | Scale3DShape(vbuf, vbufPitch, farthest->transsprite); |
||
1009 | else |
||
1010 | #endif |
||
1011 | ScaleShape(farthest->viewx, farthest->shapenum, farthest->viewheight, farthest->flags); |
||
1012 | |||
1013 | farthest->viewheight = 32000; |
||
1014 | } |
||
1015 | } |
||
1016 | |||
1017 | //========================================================================== |
||
1018 | |||
1019 | /* |
||
1020 | ============== |
||
1021 | = |
||
1022 | = DrawPlayerWeapon |
||
1023 | = |
||
1024 | = Draw the player's hands |
||
1025 | = |
||
1026 | ============== |
||
1027 | */ |
||
1028 | |||
1029 | int weaponscale[NUMWEAPONS] = {SPR_KNIFEREADY, SPR_PISTOLREADY, |
||
1030 | SPR_MACHINEGUNREADY, SPR_CHAINREADY}; |
||
1031 | |||
1032 | void DrawPlayerWeapon (void) |
||
1033 | { |
||
1034 | int shapenum; |
||
1035 | |||
1036 | #ifndef SPEAR |
||
1037 | if (gamestate.victoryflag) |
||
1038 | { |
||
1039 | #ifndef APOGEE_1_0 |
||
1040 | if (player->state == &s_deathcam && (GetTimeCount()&32) ) |
||
1041 | SimpleScaleShape(viewwidth/2,SPR_DEATHCAM,viewheight+1); |
||
1042 | #endif |
||
1043 | return; |
||
1044 | } |
||
1045 | #endif |
||
1046 | |||
1047 | if (gamestate.weapon != -1) |
||
1048 | { |
||
1049 | shapenum = weaponscale[gamestate.weapon]+gamestate.weaponframe; |
||
1050 | SimpleScaleShape(viewwidth/2,shapenum,viewheight+1); |
||
1051 | } |
||
1052 | |||
1053 | if (demorecord || demoplayback) |
||
1054 | SimpleScaleShape(viewwidth/2,SPR_DEMO,viewheight+1); |
||
1055 | } |
||
1056 | |||
1057 | |||
1058 | //========================================================================== |
||
1059 | |||
1060 | |||
1061 | /* |
||
1062 | ===================== |
||
1063 | = |
||
1064 | = CalcTics |
||
1065 | = |
||
1066 | ===================== |
||
1067 | */ |
||
1068 | |||
1069 | void CalcTics (void) |
||
1070 | { |
||
1071 | // |
||
1072 | // calculate tics since last refresh for adaptive timing |
||
1073 | // |
||
1074 | if (lasttimecount > (int32_t) GetTimeCount()) |
||
1075 | lasttimecount = GetTimeCount(); // if the game was paused a LONG time |
||
1076 | |||
9097 | turbocat | 1077 | uint32_t curtime = uSDL_GetTicks(); |
8557 | maxcodehac | 1078 | tics = (curtime * 7) / 100 - lasttimecount; |
1079 | if(!tics) |
||
1080 | { |
||
1081 | // wait until end of current tic |
||
9097 | turbocat | 1082 | uSDL_Delay(((lasttimecount + 1) * 100) / 7 - curtime); |
8557 | maxcodehac | 1083 | tics = 1; |
1084 | } |
||
1085 | |||
1086 | lasttimecount += tics; |
||
1087 | |||
1088 | if (tics>MAXTICS) |
||
1089 | tics = MAXTICS; |
||
1090 | } |
||
1091 | |||
1092 | |||
1093 | //========================================================================== |
||
1094 | |||
1095 | void AsmRefresh() |
||
1096 | { |
||
1097 | int32_t xstep,ystep; |
||
1098 | longword xpartial,ypartial; |
||
1099 | boolean playerInPushwallBackTile = tilemap[focaltx][focalty] == 64; |
||
1100 | |||
1101 | for(pixx=0;pixx |
||
1102 | { |
||
1103 | short angl=midangle+pixelangle[pixx]; |
||
1104 | if(angl<0) angl+=FINEANGLES; |
||
1105 | if(angl>=3600) angl-=FINEANGLES; |
||
1106 | if(angl<900) |
||
1107 | { |
||
1108 | xtilestep=1; |
||
1109 | ytilestep=-1; |
||
1110 | xstep=finetangent[900-1-angl]; |
||
1111 | ystep=-finetangent[angl]; |
||
1112 | xpartial=xpartialup; |
||
1113 | ypartial=ypartialdown; |
||
1114 | } |
||
1115 | else if(angl<1800) |
||
1116 | { |
||
1117 | xtilestep=-1; |
||
1118 | ytilestep=-1; |
||
1119 | xstep=-finetangent[angl-900]; |
||
1120 | ystep=-finetangent[1800-1-angl]; |
||
1121 | xpartial=xpartialdown; |
||
1122 | ypartial=ypartialdown; |
||
1123 | } |
||
1124 | else if(angl<2700) |
||
1125 | { |
||
1126 | xtilestep=-1; |
||
1127 | ytilestep=1; |
||
1128 | xstep=-finetangent[2700-1-angl]; |
||
1129 | ystep=finetangent[angl-1800]; |
||
1130 | xpartial=xpartialdown; |
||
1131 | ypartial=ypartialup; |
||
1132 | } |
||
1133 | else if(angl<3600) |
||
1134 | { |
||
1135 | xtilestep=1; |
||
1136 | ytilestep=1; |
||
1137 | xstep=finetangent[angl-2700]; |
||
1138 | ystep=finetangent[3600-1-angl]; |
||
1139 | xpartial=xpartialup; |
||
1140 | ypartial=ypartialup; |
||
1141 | } |
||
1142 | yintercept=FixedMul(ystep,xpartial)+viewy; |
||
1143 | xtile=focaltx+xtilestep; |
||
1144 | xspot=(word)((xtile< |
||
1145 | xintercept=FixedMul(xstep,ypartial)+viewx; |
||
1146 | ytile=focalty+ytilestep; |
||
1147 | yspot=(word)((((uint32_t)xintercept>>16)< |
||
1148 | texdelta=0; |
||
1149 | |||
1150 | // Special treatment when player is in back tile of pushwall |
||
1151 | if(playerInPushwallBackTile) |
||
1152 | { |
||
1153 | if( pwalldir == di_east && xtilestep == 1 |
||
1154 | || pwalldir == di_west && xtilestep == -1) |
||
1155 | { |
||
1156 | int32_t yintbuf = yintercept - ((ystep * (64 - pwallpos)) >> 6); |
||
1157 | if((yintbuf >> 16) == focalty) // ray hits pushwall back? |
||
1158 | { |
||
1159 | if(pwalldir == di_east) |
||
1160 | xintercept = (focaltx << TILESHIFT) + (pwallpos << 10); |
||
1161 | else |
||
1162 | xintercept = (focaltx << TILESHIFT) - TILEGLOBAL + ((64 - pwallpos) << 10); |
||
1163 | yintercept = yintbuf; |
||
1164 | ytile = (short) (yintercept >> TILESHIFT); |
||
1165 | tilehit = pwalltile; |
||
1166 | HitVertWall(); |
||
1167 | continue; |
||
1168 | } |
||
1169 | } |
||
1170 | else if(pwalldir == di_south && ytilestep == 1 |
||
1171 | || pwalldir == di_north && ytilestep == -1) |
||
1172 | { |
||
1173 | int32_t xintbuf = xintercept - ((xstep * (64 - pwallpos)) >> 6); |
||
1174 | if((xintbuf >> 16) == focaltx) // ray hits pushwall back? |
||
1175 | { |
||
1176 | xintercept = xintbuf; |
||
1177 | if(pwalldir == di_south) |
||
1178 | yintercept = (focalty << TILESHIFT) + (pwallpos << 10); |
||
1179 | else |
||
1180 | yintercept = (focalty << TILESHIFT) - TILEGLOBAL + ((64 - pwallpos) << 10); |
||
1181 | xtile = (short) (xintercept >> TILESHIFT); |
||
1182 | tilehit = pwalltile; |
||
1183 | HitHorizWall(); |
||
1184 | continue; |
||
1185 | } |
||
1186 | } |
||
1187 | } |
||
1188 | |||
1189 | do |
||
1190 | { |
||
1191 | if(ytilestep==-1 && (yintercept>>16)<=ytile) goto horizentry; |
||
1192 | if(ytilestep==1 && (yintercept>>16)>=ytile) goto horizentry; |
||
1193 | vertentry: |
||
1194 | if((uint32_t)yintercept>mapheight*65536-1 || (word)xtile>=mapwidth) |
||
1195 | { |
||
1196 | if(xtile<0) xintercept=0, xtile=0; |
||
1197 | else if(xtile>=mapwidth) xintercept=mapwidth< |
||
1198 | else xtile=(short) (xintercept >> TILESHIFT); |
||
1199 | if(yintercept<0) yintercept=0, ytile=0; |
||
1200 | else if(yintercept>=(mapheight< |
||
1201 | yspot=0xffff; |
||
1202 | tilehit=0; |
||
1203 | HitHorizBorder(); |
||
1204 | break; |
||
1205 | } |
||
1206 | if(xspot>=maparea) break; |
||
1207 | tilehit=((byte *)tilemap)[xspot]; |
||
1208 | if(tilehit) |
||
1209 | { |
||
1210 | if(tilehit&0x80) |
||
1211 | { |
||
1212 | int32_t yintbuf=yintercept+(ystep>>1); |
||
1213 | if((yintbuf>>16)!=(yintercept>>16)) |
||
1214 | goto passvert; |
||
1215 | if((word)yintbuf |
||
1216 | goto passvert; |
||
1217 | yintercept=yintbuf; |
||
1218 | xintercept=(xtile< |
||
1219 | ytile = (short) (yintercept >> TILESHIFT); |
||
1220 | HitVertDoor(); |
||
1221 | } |
||
1222 | else |
||
1223 | { |
||
1224 | if(tilehit==64) |
||
1225 | { |
||
1226 | if(pwalldir==di_west || pwalldir==di_east) |
||
1227 | { |
||
1228 | int32_t yintbuf; |
||
1229 | int pwallposnorm; |
||
1230 | int pwallposinv; |
||
1231 | if(pwalldir==di_west) |
||
1232 | { |
||
1233 | pwallposnorm = 64-pwallpos; |
||
1234 | pwallposinv = pwallpos; |
||
1235 | } |
||
1236 | else |
||
1237 | { |
||
1238 | pwallposnorm = pwallpos; |
||
1239 | pwallposinv = 64-pwallpos; |
||
1240 | } |
||
1241 | if(pwalldir == di_east && xtile==pwallx && ((uint32_t)yintercept>>16)==pwally |
||
1242 | || pwalldir == di_west && !(xtile==pwallx && ((uint32_t)yintercept>>16)==pwally)) |
||
1243 | { |
||
1244 | yintbuf=yintercept+((ystep*pwallposnorm)>>6); |
||
1245 | if((yintbuf>>16)!=(yintercept>>16)) |
||
1246 | goto passvert; |
||
1247 | |||
1248 | xintercept=(xtile< |
||
1249 | yintercept=yintbuf; |
||
1250 | ytile = (short) (yintercept >> TILESHIFT); |
||
1251 | tilehit=pwalltile; |
||
1252 | HitVertWall(); |
||
1253 | } |
||
1254 | else |
||
1255 | { |
||
1256 | yintbuf=yintercept+((ystep*pwallposinv)>>6); |
||
1257 | if((yintbuf>>16)!=(yintercept>>16)) |
||
1258 | goto passvert; |
||
1259 | |||
1260 | xintercept=(xtile< |
||
1261 | yintercept=yintbuf; |
||
1262 | ytile = (short) (yintercept >> TILESHIFT); |
||
1263 | tilehit=pwalltile; |
||
1264 | HitVertWall(); |
||
1265 | } |
||
1266 | } |
||
1267 | else |
||
1268 | { |
||
1269 | int pwallposi = pwallpos; |
||
1270 | if(pwalldir==di_north) pwallposi = 64-pwallpos; |
||
1271 | if(pwalldir==di_south && (word)yintercept<(pwallposi<<10) |
||
1272 | || pwalldir==di_north && (word)yintercept>(pwallposi<<10)) |
||
1273 | { |
||
1274 | if(((uint32_t)yintercept>>16)==pwally && xtile==pwallx) |
||
1275 | { |
||
1276 | if(pwalldir==di_south && (int32_t)((word)yintercept)+ystep<(pwallposi<<10) |
||
1277 | || pwalldir==di_north && (int32_t)((word)yintercept)+ystep>(pwallposi<<10)) |
||
1278 | goto passvert; |
||
1279 | |||
1280 | if(pwalldir==di_south) |
||
1281 | yintercept=(yintercept&0xffff0000)+(pwallposi<<10); |
||
1282 | else |
||
1283 | yintercept=(yintercept&0xffff0000)-TILEGLOBAL+(pwallposi<<10); |
||
1284 | xintercept=xintercept-((xstep*(64-pwallpos))>>6); |
||
1285 | xtile = (short) (xintercept >> TILESHIFT); |
||
1286 | tilehit=pwalltile; |
||
1287 | HitHorizWall(); |
||
1288 | } |
||
1289 | else |
||
1290 | { |
||
1291 | texdelta = -(pwallposi<<10); |
||
1292 | xintercept=xtile< |
||
1293 | ytile = (short) (yintercept >> TILESHIFT); |
||
1294 | tilehit=pwalltile; |
||
1295 | HitVertWall(); |
||
1296 | } |
||
1297 | } |
||
1298 | else |
||
1299 | { |
||
1300 | if(((uint32_t)yintercept>>16)==pwally && xtile==pwallx) |
||
1301 | { |
||
1302 | texdelta = -(pwallposi<<10); |
||
1303 | xintercept=xtile< |
||
1304 | ytile = (short) (yintercept >> TILESHIFT); |
||
1305 | tilehit=pwalltile; |
||
1306 | HitVertWall(); |
||
1307 | } |
||
1308 | else |
||
1309 | { |
||
1310 | if(pwalldir==di_south && (int32_t)((word)yintercept)+ystep>(pwallposi<<10) |
||
1311 | || pwalldir==di_north && (int32_t)((word)yintercept)+ystep<(pwallposi<<10)) |
||
1312 | goto passvert; |
||
1313 | |||
1314 | if(pwalldir==di_south) |
||
1315 | yintercept=(yintercept&0xffff0000)-((64-pwallpos)<<10); |
||
1316 | else |
||
1317 | yintercept=(yintercept&0xffff0000)+((64-pwallpos)<<10); |
||
1318 | xintercept=xintercept-((xstep*pwallpos)>>6); |
||
1319 | xtile = (short) (xintercept >> TILESHIFT); |
||
1320 | tilehit=pwalltile; |
||
1321 | HitHorizWall(); |
||
1322 | } |
||
1323 | } |
||
1324 | } |
||
1325 | } |
||
1326 | else |
||
1327 | { |
||
1328 | xintercept=xtile< |
||
1329 | ytile = (short) (yintercept >> TILESHIFT); |
||
1330 | HitVertWall(); |
||
1331 | } |
||
1332 | } |
||
1333 | break; |
||
1334 | } |
||
1335 | passvert: |
||
1336 | *((byte *)spotvis+xspot)=1; |
||
1337 | xtile+=xtilestep; |
||
1338 | yintercept+=ystep; |
||
1339 | xspot=(word)((xtile< |
||
1340 | } |
||
1341 | while(1); |
||
1342 | continue; |
||
1343 | |||
1344 | do |
||
1345 | { |
||
1346 | if(xtilestep==-1 && (xintercept>>16)<=xtile) goto vertentry; |
||
1347 | if(xtilestep==1 && (xintercept>>16)>=xtile) goto vertentry; |
||
1348 | horizentry: |
||
1349 | if((uint32_t)xintercept>mapwidth*65536-1 || (word)ytile>=mapheight) |
||
1350 | { |
||
1351 | if(ytile<0) yintercept=0, ytile=0; |
||
1352 | else if(ytile>=mapheight) yintercept=mapheight< |
||
1353 | else ytile=(short) (yintercept >> TILESHIFT); |
||
1354 | if(xintercept<0) xintercept=0, xtile=0; |
||
1355 | else if(xintercept>=(mapwidth< |
||
1356 | xspot=0xffff; |
||
1357 | tilehit=0; |
||
1358 | HitVertBorder(); |
||
1359 | break; |
||
1360 | } |
||
1361 | if(yspot>=maparea) break; |
||
1362 | tilehit=((byte *)tilemap)[yspot]; |
||
1363 | if(tilehit) |
||
1364 | { |
||
1365 | if(tilehit&0x80) |
||
1366 | { |
||
1367 | int32_t xintbuf=xintercept+(xstep>>1); |
||
1368 | if((xintbuf>>16)!=(xintercept>>16)) |
||
1369 | goto passhoriz; |
||
1370 | if((word)xintbuf |
||
1371 | goto passhoriz; |
||
1372 | xintercept=xintbuf; |
||
1373 | yintercept=(ytile< |
||
1374 | xtile = (short) (xintercept >> TILESHIFT); |
||
1375 | HitHorizDoor(); |
||
1376 | } |
||
1377 | else |
||
1378 | { |
||
1379 | if(tilehit==64) |
||
1380 | { |
||
1381 | if(pwalldir==di_north || pwalldir==di_south) |
||
1382 | { |
||
1383 | int32_t xintbuf; |
||
1384 | int pwallposnorm; |
||
1385 | int pwallposinv; |
||
1386 | if(pwalldir==di_north) |
||
1387 | { |
||
1388 | pwallposnorm = 64-pwallpos; |
||
1389 | pwallposinv = pwallpos; |
||
1390 | } |
||
1391 | else |
||
1392 | { |
||
1393 | pwallposnorm = pwallpos; |
||
1394 | pwallposinv = 64-pwallpos; |
||
1395 | } |
||
1396 | if(pwalldir == di_south && ytile==pwally && ((uint32_t)xintercept>>16)==pwallx |
||
1397 | || pwalldir == di_north && !(ytile==pwally && ((uint32_t)xintercept>>16)==pwallx)) |
||
1398 | { |
||
1399 | xintbuf=xintercept+((xstep*pwallposnorm)>>6); |
||
1400 | if((xintbuf>>16)!=(xintercept>>16)) |
||
1401 | goto passhoriz; |
||
1402 | |||
1403 | yintercept=(ytile< |
||
1404 | xintercept=xintbuf; |
||
1405 | xtile = (short) (xintercept >> TILESHIFT); |
||
1406 | tilehit=pwalltile; |
||
1407 | HitHorizWall(); |
||
1408 | } |
||
1409 | else |
||
1410 | { |
||
1411 | xintbuf=xintercept+((xstep*pwallposinv)>>6); |
||
1412 | if((xintbuf>>16)!=(xintercept>>16)) |
||
1413 | goto passhoriz; |
||
1414 | |||
1415 | yintercept=(ytile< |
||
1416 | xintercept=xintbuf; |
||
1417 | xtile = (short) (xintercept >> TILESHIFT); |
||
1418 | tilehit=pwalltile; |
||
1419 | HitHorizWall(); |
||
1420 | } |
||
1421 | } |
||
1422 | else |
||
1423 | { |
||
1424 | int pwallposi = pwallpos; |
||
1425 | if(pwalldir==di_west) pwallposi = 64-pwallpos; |
||
1426 | if(pwalldir==di_east && (word)xintercept<(pwallposi<<10) |
||
1427 | || pwalldir==di_west && (word)xintercept>(pwallposi<<10)) |
||
1428 | { |
||
1429 | if(((uint32_t)xintercept>>16)==pwallx && ytile==pwally) |
||
1430 | { |
||
1431 | if(pwalldir==di_east && (int32_t)((word)xintercept)+xstep<(pwallposi<<10) |
||
1432 | || pwalldir==di_west && (int32_t)((word)xintercept)+xstep>(pwallposi<<10)) |
||
1433 | goto passhoriz; |
||
1434 | |||
1435 | if(pwalldir==di_east) |
||
1436 | xintercept=(xintercept&0xffff0000)+(pwallposi<<10); |
||
1437 | else |
||
1438 | xintercept=(xintercept&0xffff0000)-TILEGLOBAL+(pwallposi<<10); |
||
1439 | yintercept=yintercept-((ystep*(64-pwallpos))>>6); |
||
1440 | ytile = (short) (yintercept >> TILESHIFT); |
||
1441 | tilehit=pwalltile; |
||
1442 | HitVertWall(); |
||
1443 | } |
||
1444 | else |
||
1445 | { |
||
1446 | texdelta = -(pwallposi<<10); |
||
1447 | yintercept=ytile< |
||
1448 | xtile = (short) (xintercept >> TILESHIFT); |
||
1449 | tilehit=pwalltile; |
||
1450 | HitHorizWall(); |
||
1451 | } |
||
1452 | } |
||
1453 | else |
||
1454 | { |
||
1455 | if(((uint32_t)xintercept>>16)==pwallx && ytile==pwally) |
||
1456 | { |
||
1457 | texdelta = -(pwallposi<<10); |
||
1458 | yintercept=ytile< |
||
1459 | xtile = (short) (xintercept >> TILESHIFT); |
||
1460 | tilehit=pwalltile; |
||
1461 | HitHorizWall(); |
||
1462 | } |
||
1463 | else |
||
1464 | { |
||
1465 | if(pwalldir==di_east && (int32_t)((word)xintercept)+xstep>(pwallposi<<10) |
||
1466 | || pwalldir==di_west && (int32_t)((word)xintercept)+xstep<(pwallposi<<10)) |
||
1467 | goto passhoriz; |
||
1468 | |||
1469 | if(pwalldir==di_east) |
||
1470 | xintercept=(xintercept&0xffff0000)-((64-pwallpos)<<10); |
||
1471 | else |
||
1472 | xintercept=(xintercept&0xffff0000)+((64-pwallpos)<<10); |
||
1473 | yintercept=yintercept-((ystep*pwallpos)>>6); |
||
1474 | ytile = (short) (yintercept >> TILESHIFT); |
||
1475 | tilehit=pwalltile; |
||
1476 | HitVertWall(); |
||
1477 | } |
||
1478 | } |
||
1479 | } |
||
1480 | } |
||
1481 | else |
||
1482 | { |
||
1483 | yintercept=ytile< |
||
1484 | xtile = (short) (xintercept >> TILESHIFT); |
||
1485 | HitHorizWall(); |
||
1486 | } |
||
1487 | } |
||
1488 | break; |
||
1489 | } |
||
1490 | passhoriz: |
||
1491 | *((byte *)spotvis+yspot)=1; |
||
1492 | ytile+=ytilestep; |
||
1493 | xintercept+=xstep; |
||
1494 | yspot=(word)((((uint32_t)xintercept>>16)< |
||
1495 | } |
||
1496 | while(1); |
||
1497 | } |
||
1498 | } |
||
1499 | |||
1500 | /* |
||
1501 | ==================== |
||
1502 | = |
||
1503 | = WallRefresh |
||
1504 | = |
||
1505 | ==================== |
||
1506 | */ |
||
1507 | |||
1508 | void WallRefresh (void) |
||
1509 | { |
||
1510 | xpartialdown = viewx&(TILEGLOBAL-1); |
||
1511 | xpartialup = TILEGLOBAL-xpartialdown; |
||
1512 | ypartialdown = viewy&(TILEGLOBAL-1); |
||
1513 | ypartialup = TILEGLOBAL-ypartialdown; |
||
1514 | |||
1515 | min_wallheight = viewheight; |
||
1516 | lastside = -1; // the first pixel is on a new wall |
||
1517 | AsmRefresh (); |
||
1518 | ScalePost (); // no more optimization on last post |
||
1519 | } |
||
1520 | |||
1521 | void CalcViewVariables() |
||
1522 | { |
||
1523 | viewangle = player->angle; |
||
1524 | midangle = viewangle*(FINEANGLES/ANGLES); |
||
1525 | viewsin = sintable[viewangle]; |
||
1526 | viewcos = costable[viewangle]; |
||
1527 | viewx = player->x - FixedMul(focallength,viewcos); |
||
1528 | viewy = player->y + FixedMul(focallength,viewsin); |
||
1529 | |||
1530 | focaltx = (short)(viewx>>TILESHIFT); |
||
1531 | focalty = (short)(viewy>>TILESHIFT); |
||
1532 | |||
1533 | viewtx = (short)(player->x >> TILESHIFT); |
||
1534 | viewty = (short)(player->y >> TILESHIFT); |
||
1535 | } |
||
1536 | |||
1537 | //========================================================================== |
||
1538 | |||
1539 | /* |
||
1540 | ======================== |
||
1541 | = |
||
1542 | = ThreeDRefresh |
||
1543 | = |
||
1544 | ======================== |
||
1545 | */ |
||
1546 | |||
1547 | void ThreeDRefresh (void) |
||
1548 | { |
||
1549 | // |
||
1550 | // clear out the traced array |
||
1551 | // |
||
1552 | memset(spotvis,0,maparea); |
||
1553 | spotvis[player->tilex][player->tiley] = 1; // Detect all sprites over player fix |
||
1554 | |||
1555 | vbuf = VL_LockSurface(screenBuffer); |
||
1556 | if(vbuf == NULL) return; |
||
1557 | |||
1558 | vbuf += screenofs; |
||
1559 | vbufPitch = bufferPitch; |
||
1560 | |||
1561 | CalcViewVariables(); |
||
1562 | |||
1563 | // |
||
1564 | // follow the walls from there to the right, drawing as we go |
||
1565 | // |
||
1566 | VGAClearScreen (); |
||
1567 | #if defined(USE_FEATUREFLAGS) && defined(USE_STARSKY) |
||
1568 | if(GetFeatureFlags() & FF_STARSKY) |
||
1569 | DrawStarSky(vbuf, vbufPitch); |
||
1570 | #endif |
||
1571 | |||
1572 | WallRefresh (); |
||
1573 | |||
1574 | #if defined(USE_FEATUREFLAGS) && defined(USE_PARALLAX) |
||
1575 | if(GetFeatureFlags() & FF_PARALLAXSKY) |
||
1576 | DrawParallax(vbuf, vbufPitch); |
||
1577 | #endif |
||
1578 | #if defined(USE_FEATUREFLAGS) && defined(USE_CLOUDSKY) |
||
1579 | if(GetFeatureFlags() & FF_CLOUDSKY) |
||
1580 | DrawClouds(vbuf, vbufPitch, min_wallheight); |
||
1581 | #endif |
||
1582 | #ifdef USE_FLOORCEILINGTEX |
||
1583 | DrawFloorAndCeiling(vbuf, vbufPitch, min_wallheight); |
||
1584 | #endif |
||
1585 | |||
1586 | // |
||
1587 | // draw all the scaled images |
||
1588 | // |
||
1589 | DrawScaleds(); // draw scaled stuff |
||
1590 | |||
1591 | #if defined(USE_FEATUREFLAGS) && defined(USE_RAIN) |
||
1592 | if(GetFeatureFlags() & FF_RAIN) |
||
1593 | DrawRain(vbuf, vbufPitch); |
||
1594 | #endif |
||
1595 | #if defined(USE_FEATUREFLAGS) && defined(USE_SNOW) |
||
1596 | if(GetFeatureFlags() & FF_SNOW) |
||
1597 | DrawSnow(vbuf, vbufPitch); |
||
1598 | #endif |
||
1599 | |||
1600 | DrawPlayerWeapon (); // draw player's hands |
||
1601 | |||
1602 | if(Keyboard[sc_Tab] && viewsize == 21 && gamestate.weapon != -1) |
||
1603 | ShowActStatus(); |
||
1604 | |||
1605 | VL_UnlockSurface(screenBuffer); |
||
1606 | vbuf = NULL; |
||
1607 | |||
1608 | // |
||
1609 | // show screen and time last cycle |
||
1610 | // |
||
1611 | |||
1612 | if (fizzlein) |
||
1613 | { |
||
1614 | FizzleFade(screenBuffer, 0, 0, screenWidth, screenHeight, 20, false); |
||
1615 | fizzlein = false; |
||
1616 | |||
1617 | lasttimecount = GetTimeCount(); // don't make a big tic count |
||
1618 | } |
||
1619 | else |
||
1620 | { |
||
1621 | #ifndef REMDEBUG |
||
1622 | if (fpscounter) |
||
1623 | { |
||
1624 | fontnumber = 0; |
||
1625 | SETFONTCOLOR(7,127); |
||
1626 | PrintX=4; PrintY=1; |
||
1627 | VWB_Bar(0,0,50,10,bordercol); |
||
1628 | US_PrintSigned(fps); |
||
1629 | US_Print(" fps"); |
||
1630 | } |
||
1631 | #endif |
||
1632 | SDL_BlitSurface(screenBuffer, NULL, screen, NULL); |
||
1633 | SDL_Flip(screen); |
||
1634 | } |
||
1635 | |||
1636 | #ifndef REMDEBUG |
||
1637 | if (fpscounter) |
||
1638 | { |
||
1639 | fps_frames++; |
||
1640 | fps_time+=tics; |
||
1641 | |||
1642 | if(fps_time>35) |
||
1643 | { |
||
1644 | fps_time-=35; |
||
1645 | fps=fps_frames<<1; |
||
1646 | fps_frames=0; |
||
1647 | } |
||
1648 | } |
||
1649 | #endif |
||
1650 | }1; |