Subversion Repositories Kolibri OS

#include "rsgame.h"

#include "rsgametext.h"

#include "rsgamemenu.h"

#include "rsgamedraw.h"

#include "rskos.h"

#include "rsgentex.h"

#include "rssoundgen.h"

#include "rsnoise.h"

#include "rs/rsplatform.h"

rs_game_t game;

void texture_init(rs_texture_t *tex, int w, int h) {

    tex->status = 1;

    tex->w = w;

    tex->h = h;

    tex->data = malloc(w*h*4); // BGRA BGRA

};

void texture_free(rs_texture_t *tex) {

    free(tex->data);

    tex->status = 0;

};

void texture_clear(rs_texture_t *tex, unsigned int color) {

    int i;

    for (i = 0; i < tex->w * tex->h; i++) {

        *((unsigned int*)(&tex->data[i*4])) = color;

    };

};

void texture_draw(rs_texture_t *dest, rs_texture_t *src, int x, int y, int mode) {

    int i; // y

    int j; // x

    int k; // color component

    int istart = (y < 0) ? -y : 0;

    int iend = src->h - (( (y + src->h) > dest->h) ? (y + src->h - dest->h) : 0);

    int jstart = (x < 0) ? -x : 0;

    int jend = src->w - (( (x + src->w) > dest->w) ? (x + src->w - dest->w) : 0);

    int ishift = 0;

    int jshift = 0;

    float a; // alpha value

    if (mode & DRAW_TILED_FLAG) {

        jshift = x;

        ishift = y;

        x = y = istart = jstart = 0;

        iend = dest->h;

        jend = dest->w;

    };

    mode = mode & DRAW_MODE_MASK;

    int modvalue = (src->w*src->h*4);

    if (mode == DRAW_MODE_REPLACE) {

        for (i = istart; i < iend; i++) {

            for (j = jstart; j < jend; j++) {

                for (k = 0; k < 4; k++) {

                    dest->data[ 4 * ( (y+i)*dest->w + (x+j) ) + k ] = src->data[ (4*((i+ishift)*src->w + j + jshift) + k) % modvalue];

                };

            };

        };

    }

    else if (mode == DRAW_MODE_ADDITIVE) {

        for (i = istart; i < iend; i++) {

            for (j = jstart; j < jend; j++) {

                for (k = 0; k < 3; k++) { // Alpha channel is not added

                    dest->data[ 4 * ( (y+i)*dest->w + (x+j) ) + k ] =

                        clamp_byte( dest->data[ 4 * ( (y+i)*dest->w + (x+j) ) + k ] + src->data[ (4*((i+ishift)*src->w + j + jshift) + k) % modvalue] );

                };

            };

        };

    }

    else if (mode == DRAW_MODE_MULT) {

        for (i = istart; i < iend; i++) {

            for (j = jstart; j < jend; j++) {

                for (k = 0; k < 3; k++) { // Alpha channel is not added

                    dest->data[ 4 * ( (y+i)*dest->w + (x+j) ) + k ] =

                        clamp_byte( dest->data[ 4 * ( (y+i)*dest->w + (x+j) ) + k ] * src->data[ (4*((i+ishift)*src->w + j + jshift) + k) % modvalue] / 255 );

                };

            };

        };

    }

    else if (mode == DRAW_MODE_ALPHA) {

        for (i = istart; i < iend; i++) {

            for (j = jstart; j < jend; j++) {

                for (k = 0; k < 3; k++) {

                    a = (1.0 * src->data[ (4*(i*src->w + j) + 3) % modvalue ] / 255.0);

                    dest->data[ 4 * ( (y+i)*dest->w + (x+j) ) + k ] =

                         (unsigned char) ( (1.0-a) * dest->data[ 4 * ( (y+i)*dest->w + (x+j) ) + k ]

                                          + a*src->data[ (4*((i+ishift)*src->w + j + jshift) + k) % modvalue] );

                };

            };

        };

    };

};

void texture_set_pixel(rs_texture_t *tex, int x, int y, unsigned int color) {

    *((unsigned int*) &tex->data[ 4 * ( (y)*tex->w + (x) ) + 0 ]) = color;

};

void texture_draw_vline(rs_texture_t *tex, int x, int y, int l, unsigned int color) {

    int i;

    if (y+l >= tex->h) {

        l = tex->h - y;

    };

    for (i = 0; i < l; i++) {

        *((unsigned int*) &tex->data[ 4 * ( (y+i)*tex->w + (x) ) + 0 ]) = color;

    };

};

void texture_draw_hline(rs_texture_t *tex, int x, int y, int l, unsigned int color) {

    int i;

    if (x+l >= tex->w) {

        l = tex->w - x;

    };

    for (i = 0; i < l; i++) {

        *((unsigned int*) &tex->data[ 4 * ( (y)*tex->w + (x+i) ) + 0 ]) = color;

    };

};

void soundbuf_init(rs_soundbuf_t *snd, int length_samples) {

    snd->status = 1;

    snd->length_samples = length_samples;

    snd->data = malloc(length_samples*2);

    rskos_snd_create_buffer(&snd->hbuf, snd->data, length_samples);

};

void soundbuf_free(rs_soundbuf_t *snd) {

    snd->status = 0;

    free(snd->data);

};

void soundbuf_fill(rs_soundbuf_t *snd, int amp, int freq_div) {

    int i;

    for (i = 0; i < snd->length_samples; i++) {

		snd->data[i] = -amp/2 + amp/2*( ( (i % freq_div) > freq_div/2 ) ? 1 : 0 );

	};

	rskos_snd_update_buffer(&snd->hbuf, snd->data, snd->length_samples);

};

void soundbuf_sin(rs_soundbuf_t *snd, float freq) {

    int i;

    int amp = 29000;

    for (i = 0; i < snd->length_samples; i++) {

		snd->data[i] = ( 1.0 - 1.0*i/snd->length_samples ) * sin(freq*i) * amp;

	};

	rskos_snd_update_buffer(&snd->hbuf, snd->data, snd->length_samples);

};

void soundbuf_sin_fade(rs_soundbuf_t *snd, float freq) {

    int i;

    int amp = 29000;

    for (i = 0; i < snd->length_samples; i++) {

		snd->data[i] = ( 1.0 - 1.0*i/snd->length_samples ) * sin( ( (1.0 - 0.48*i/snd->length_samples) * freq ) *i) * amp;

	};

	/*

	// ok

	rs_sgen_init(2, snd->length_samples);

	rs_sgen_func_pm(1, 880.0, 21.0, 0.3, 110.0, 0.3);

	rs_sgen_func_normalize(1, 1.0);

	rs_sgen_func_lowpass(0, 1, 1.0, 0.0, 1.0);

	rs_sgen_wave_out(0);

	memcpy(snd->data, rs_sgen_reg.wave_out, snd->length_samples*2 );

	rs_sgen_term();

	*/

	rskos_snd_update_buffer(&snd->hbuf, snd->data, snd->length_samples);

};

void soundbuf_play(rs_soundbuf_t *snd) {

    rskos_snd_play(&snd->hbuf, 0);

};

void soundbuf_stop(rs_soundbuf_t *snd) {

    rskos_snd_stop(&snd->hbuf);

};

unsigned char clamp_byte(int value) {

    value = value * (1 - (value >> 31)); // negative to zero

    return (value > 255) ? 255 : value;

};

void game_reg_init() {

    game.loader_counter = 0;

    game.need_redraw = 1;

    game.score = 0;

    game.time = 0;

    game.selected = 0;

    game.selected_x = game.selected_y = 0;

    game.explosions_count = 0;

    game.tx = 0;

    game.ty = 0;

    game.tz = 0;

//    int i;

//    for (i = 0; i < BULLETS_COUNT; i++) {

//        game.bullet_x[i] = 0;

//        game.bullet_y[i] = 0;

//    };

//    game.bullet_index = 0;

    game.status = STATUS_LOADING;

    game.window_scale = 1;

//    game.window_scale = 2;

//    #ifndef RS_KOS

//        game.window_scale = 3;

//        window_scale_str[3] = '3';

//    #endif

    game.keyboard_state = 0;

    game.menu_index = 0;

    game.menu_item_index = 0;

};

int is_key_pressed(int mask) {

    return IS_BIT_SET(game.keyboard_state, mask) ? 1 : 0;

};

int seed = 0;

int get_random_crystal() {

    seed += 2;

    return ( (seed + (get_time() & 0xFFFF) ) % CRYSTALS_COUNT) | CRYSTAL_VISIBLE_BIT;

};

int game_check_and_explode() {

    int x, y, i, item, match_count, found;

    found = 0;

    // vertical lines

    for (x = 0; x < FIELD_WIDTH; x++) {

        match_count = 0;

        item = 0xFF;

        for (y = FIELD_HEIGHT-1; y >= 0; y--) {

            if ( IS_BIT_SET( FIELD_ITEM(x,y), CRYSTAL_MOVING_BIT ) || IS_BIT_CLEARED( FIELD_ITEM(x,y), CRYSTAL_VISIBLE_BIT) ) {

                item = 0xFF;

                match_count = 0;

                continue;

            };

            if ( (FIELD_ITEM(x,y) & CRYSTAL_INDEX_MASK) == item) {

                match_count++;

            }

            else {

                if (match_count >= 2) {

                    found = 1;

                    for (i = y+1; i < y+1+match_count+1; i++) {

                        BIT_SET( FIELD_ITEM(x, i), CRYSTAL_EXPLODED_BIT );

                    };

                }

                item = FIELD_ITEM(x,y) & CRYSTAL_INDEX_MASK;

                match_count = 0;

            };

        };

        if (match_count >= 2) { // last

            found = 1;

            for (i = y+1; i < y+1+match_count+1; i++) {

                BIT_SET( FIELD_ITEM(x, i), CRYSTAL_EXPLODED_BIT );

            };

        };

    };

    // horizontal lines

    for (y = 0; y < FIELD_HEIGHT; y++) {

        match_count = 0;

        item = 0xFF;

        for (x = FIELD_WIDTH-1; x >= 0; x--) {

            if ( IS_BIT_SET( FIELD_ITEM(x,y), CRYSTAL_MOVING_BIT ) || IS_BIT_CLEARED( FIELD_ITEM(x,y), CRYSTAL_VISIBLE_BIT) ) {

                item = 0xFF;

                match_count = 0;

                continue;

            };

            if ( (FIELD_ITEM(x,y) & CRYSTAL_INDEX_MASK) == item) {

                match_count++;

            }

            else {

                if (match_count >= 2) {

                    found = 1;

                    for (i = x+1; i < x+1+match_count+1; i++) {

                        BIT_SET( FIELD_ITEM(i, y), CRYSTAL_EXPLODED_BIT );

                    };

                }

                item = FIELD_ITEM(x,y) & CRYSTAL_INDEX_MASK;

                match_count = 0;

            };

        };

        if (match_count >= 2) { // last

            found = 1;

            for (i = x+1; i < x+1+match_count+1; i++) {

                BIT_SET( FIELD_ITEM(i, y), CRYSTAL_EXPLODED_BIT );

            };

        };

    };

    for (i = 0; i < FIELD_LENGTH; i++) {

        if (IS_BIT_SET(game.field[i], CRYSTAL_EXPLODED_BIT)) {

            game.field[i] = 0;

            game.score++;

            if (game.explosions_count < EXPLOSIONS_MAX_COUNT-1) {

                game.explosions[game.explosions_count] = ( i % FIELD_WIDTH ) | ( (i / FIELD_WIDTH) << 8);

                game.explosions_count++;

            };

        };

    };

    if (game.score > 99) {

        game.status = STATUS_MENU;

        game.need_redraw = 1;

    };

    if (found) {

        game.need_redraw = 1;

    };

    return found;

};

void game_fall() {

    int x, y, fall;

    for (x = 0; x < FIELD_WIDTH; x++) {

        fall = 0;

        for (y = FIELD_HEIGHT-1; y > 0; y--) {

            fall |= !(FIELD_ITEM(x, y) & CRYSTAL_VISIBLE_BIT);

            if (fall) {

                FIELD_ITEM(x, y) = FIELD_ITEM(x, y-1) | CRYSTAL_MOVING_BIT;

                game.need_redraw = 1;

            }

            else {

                BIT_CLEAR( FIELD_ITEM(x, y), CRYSTAL_MOVING_BIT );

            };

        };

        if ( (fall) || ( IS_BIT_CLEARED(FIELD_ITEM(x,0), CRYSTAL_VISIBLE_BIT) ) ) {

            FIELD_ITEM(x, 0) = get_random_crystal();

        };

    };

};

int process_timer = 0;

void GameProcess() {

    if (game.status == STATUS_LOADING) {

        game.loader_counter++;

        if (game.loader_counter == 2) {

            game_textures_init_stage2();

            game.status = STATUS_MENU;

            game.need_redraw = 1;

        };

    }

    else if (game.status == STATUS_PLAYING) {

        process_timer++;

        if (process_timer > 3) {

            game_check_and_explode();

            game_fall();

            process_timer = 0;

        };

        int i;

        for (i = 0; i < game.explosions_count; i++) {

            game.need_redraw = 1;

            game.explosions[i] = (game.explosions[i] & 0xFFFF) | ( ((game.explosions[i]>>16)+1) << 16 );

            if ( (game.explosions[i] >> 16) >= EXPLOSION_FRAMES_COUNT ) {

                game.explosions[i] = game.explosions[game.explosions_count-1];

                game.explosions_count--;

                i--;

            };

        };

        if ((game.time+1)/25 != game.time/25) {

            game.need_redraw = 1;

        };

        game.time++;

    };

    game_draw();

}

void GameInit() {

    game_reg_init();

    game.field = malloc( FIELD_LENGTH );

    int i;

    for (i = 0; i < FIELD_LENGTH; i++) {

        game.field[i] = (unsigned char) (0.99 * fabs(rs_noise(i, 10)) * CRYSTALS_COUNT) | CRYSTAL_VISIBLE_BIT;

    };

//    memset( game.field, 0, FIELD_LENGTH );

    game.scaled_framebuffer = malloc(GAME_WIDTH*game.window_scale * GAME_HEIGHT*game.window_scale * 3);

    DEBUG10f("scaled framebuffer: %d (window_scale = %d) \n", game.window_scale * GAME_WIDTH * GAME_HEIGHT * 3, game.window_scale);

    game_font_init();

    game_textures_init_stage1();

    #ifndef RS_KOS

        rs_audio_init(RS_AUDIO_FMT_MONO16, RS_AUDIO_FREQ_16000, 0);

    #endif

    soundbuf_init(&game.sound_test1, 2048);

//    soundbuf_fill(&game.sound_test1, 2, 50);

    soundbuf_sin_fade(&game.sound_test1, 0.7);

    soundbuf_init(&game.sound_test2, 1024);

    //soundbuf_fill(&game.sound_test2, 8, 40);

    soundbuf_sin(&game.sound_test2, 0.48);

    soundbuf_init(&game.sound_test3, 1024);

    //soundbuf_fill(&game.sound_test3, 12, 60);

    soundbuf_sin(&game.sound_test3, 0.24);

};

void GameTerm() {

    DEBUG10("--- Game Term ---");

    free(game.field);

    #ifndef RS_KOS

        rs_audio_term();

    #endif

    game_font_term();

    game_textures_free();

    soundbuf_free(&game.sound_test1);

    soundbuf_free(&game.sound_test2);

    soundbuf_free(&game.sound_test3);

};

// ------------ #Event Functions ------------

void GameKeyDown(int key, int first) {

    if (key == RS_KEY_A) {

        game.need_redraw = 1;

    };

    switch (key) {

        case RS_KEY_LEFT:

            BIT_SET(game.keyboard_state, RS_ARROW_LEFT_MASK);

            break;

        case RS_KEY_RIGHT:

            BIT_SET(game.keyboard_state, RS_ARROW_RIGHT_MASK);

            break;

        case RS_KEY_UP:

            BIT_SET(game.keyboard_state, RS_ARROW_UP_MASK);

            break;

        case RS_KEY_DOWN:

            BIT_SET(game.keyboard_state, RS_ARROW_DOWN_MASK);

            break;

        case RS_KEY_A:

            BIT_SET(game.keyboard_state, RS_ATTACK_KEY_MASK);

//            game.shoot_keypressed = 1;

            break;

    };

    if (game.status == STATUS_MENU) {

        switch (key) {

            case RS_KEY_LEFT:

                BIT_SET(game.keyboard_state, RS_ARROW_LEFT_MASK);

                //PlayBuffer(hBuff, 0);

                break;

            case RS_KEY_RIGHT:

                BIT_SET(game.keyboard_state, RS_ARROW_RIGHT_MASK);

                //StopBuffer(hBuff);

                break;

            case RS_KEY_UP:

                BIT_SET(game.keyboard_state, RS_ARROW_UP_MASK);

                menu_cursor_up();

                //ResetBuffer(hBuff, 0);

                break;

            case RS_KEY_DOWN:

                BIT_SET(game.keyboard_state, RS_ARROW_DOWN_MASK);

                menu_cursor_down();

                break;

            case RS_KEY_RETURN:

                menu_cursor_click();

                break;

            case RS_KEY_ESCAPE:

                menu_open(0);

                break;

        };

    };

    if (game.status == STATUS_PLAYING) {

        if (key == RS_KEY_SPACE) {

            game.score = 101;

        };

    };

};

void GameKeyUp(int key) {

    switch (key) {

        case RS_KEY_LEFT:

            BIT_CLEAR(game.keyboard_state, RS_ARROW_LEFT_MASK);

            break;

        case RS_KEY_RIGHT:

            BIT_CLEAR(game.keyboard_state, RS_ARROW_RIGHT_MASK);

            break;

        case RS_KEY_UP:

            BIT_CLEAR(game.keyboard_state, RS_ARROW_UP_MASK);

            break;

        case RS_KEY_DOWN:

            BIT_CLEAR(game.keyboard_state, RS_ARROW_DOWN_MASK);

            break;

        case RS_KEY_A:

            BIT_CLEAR(game.keyboard_state, RS_ATTACK_KEY_MASK);

            break;

    };

};

void GameMouseDown(int x, int y) {

    game.need_redraw = 1;

    game.tx = x;

    game.ty = y;

    if (game.status == STATUS_MENU) {

        game.time = 0;

        game.score = 0;

        game.status = STATUS_PLAYING;

        return;

    };

    if (game.status == STATUS_PLAYING) {

        unsigned int field_x = (unsigned int) (x - FIELD_X0) / CRYSTAL_SIZE;

        if (field_x != rs_clamp_i(field_x, 0, FIELD_WIDTH-1)) {

            return;

        };

        unsigned int field_y = (unsigned int) (y - FIELD_Y0) / CRYSTAL_SIZE;

        if (field_y != rs_clamp_i(field_y, 0, FIELD_HEIGHT-1)) {

            return;

        };

        //FIELD_ITEM(field_x, field_y) = 0;

        if (!game.selected) {

            game.selected = 1;

            game.selected_x = field_x;

            game.selected_y = field_y;

        }

        else {

            if ( abs(game.selected_x - field_x) + abs(game.selected_y - field_y) == 1 ) {

                game.selected = 0;

                // Trying to swap

                int temp_crystal = FIELD_ITEM(field_x, field_y);

                FIELD_ITEM(field_x, field_y) = FIELD_ITEM(game.selected_x, game.selected_y);

                FIELD_ITEM(game.selected_x, game.selected_y) = temp_crystal;

                if ( !game_check_and_explode() ) {

                    FIELD_ITEM(game.selected_x, game.selected_y) = FIELD_ITEM(field_x, field_y);

                    FIELD_ITEM(field_x, field_y) = temp_crystal;

                }

                else {

                    // success

                    process_timer = 0;

                };

            }

            else {

                if ( (game.selected_x != field_x) && (game.selected_y != field_y) ) {

                    game.selected_x = field_x;

                    game.selected_y = field_y;

                }

                else {

                    game.selected = 0;

                };

            };

        };

//        int i;

//        for (i = field_y; i > 0; i--) {

//            FIELD_ITEM(field_x, i) = FIELD_ITEM(field_x, (i-1) );

//        };

//        FIELD_ITEM(field_x, 0) = 0;

    };

};

void GameMouseUp(int x, int y) {

    //

};

void game_ding(int i) {

    switch (i) {

        case 0:

            soundbuf_play(&game.sound_test2);

            break;

        case 1:

            soundbuf_play(&game.sound_test3);

            break;

    };

};