328 lines
9.5 KiB
C
328 lines
9.5 KiB
C
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#include "game.h"
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#include "resource.h"
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#include "sys.h"
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// palette colors 16..31
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static const uint16_t _colors2_data[] = {
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0x1a0,0x000,0x1a2,0xfdd,0x1a4,0x678,0x1a6,0x046,0x1a8,0x000,0x1aa,0xa20,0x1ac,0xf87,0x1ae,0x955,
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0x1b0,0xbcf,0x1b2,0xfca,0x1b4,0x30a,0x1b6,0xa9a,0x1b8,0x900,0x1ba,0x666,0x1bc,0x747,0x1be,0x020
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};
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struct vars_t g_vars;
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void update_input() {
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g_sys.process_events();
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g_vars.inp_key_left = ((g_sys.input.direction & INPUT_DIRECTION_LEFT) != 0) || g_vars.inp_keyboard[0x4B] || g_vars.inp_keyboard[0x7A];
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g_vars.inp_key_right = ((g_sys.input.direction & INPUT_DIRECTION_RIGHT) != 0) || g_vars.inp_keyboard[0x4D] || g_vars.inp_keyboard[0x79];
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g_vars.inp_key_up = ((g_sys.input.direction & INPUT_DIRECTION_UP) != 0) || g_vars.inp_keyboard[0x48] || g_vars.inp_keyboard[0x7C];
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g_vars.inp_key_down = ((g_sys.input.direction & INPUT_DIRECTION_DOWN) != 0) || g_vars.inp_keyboard[0x50] || g_vars.inp_keyboard[0x7B];
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g_vars.inp_key_space = (g_sys.input.space != 0) || g_vars.inp_keyboard[0x39] || g_vars.inp_keyboard[0x77];
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g_vars.inp_key_tab = g_vars.inp_keyboard[0xF] || g_vars.inp_keyboard[0x78];
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}
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void do_title_screen() {
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const uint32_t timestamp = g_sys.get_timestamp() + 20 * 1000;
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load_img(g_options.amiga_data ? "blues.lbm" : "pres.sqz");
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fade_in_palette();
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do {
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update_input();
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if (g_sys.input.space || g_sys.input.quit) {
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break;
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}
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} while (g_sys.get_timestamp() < timestamp);
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play_sound(SOUND_0);
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fade_out_palette();
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g_sys.input.space = 0;
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}
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static void check_cheat_code() {
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static const uint8_t codes[] = { 0x14, 0x17, 0x27, 0x18, 0x14, 0x23, 0x12, 0x12 };
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if ((g_vars.inp_code & 0x80) == 0 && g_vars.inp_code != 0) {
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if (g_vars.inp_code == codes[g_vars.cheat_code_len]) {
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++g_vars.cheat_code_len;
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if (g_vars.cheat_code_len == ARRAYSIZE(codes)) {
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g_vars.cheat_flag = 1;
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}
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} else {
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g_vars.cheat_code_len = 0;
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}
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}
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}
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void do_select_player() {
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int quit = 0;
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int fade = 0;
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int state = 0;
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int frame1 = 1;
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int frame2 = 1;
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const int color_rgb = 2;
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const int colors_count = 25;
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load_img(g_options.amiga_data ? "choix.lbm" : "choix.sqz");
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screen_load_graphics();
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screen_clear_sprites();
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do {
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screen_unk4();
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update_input();
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const uint32_t timestamp = g_sys.get_timestamp();
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switch (state) {
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case 0:
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screen_add_sprite(95, 155, animframe_0135[frame1]);
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if (frame1 < animframe_0135[0]) {
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++frame1;
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} else {
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frame1 = 1;
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}
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screen_add_sprite(190, 155, animframe_01d5[frame2]);
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if (frame2 < animframe_01d5[0]) {
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++frame2;
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} else {
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frame2 = 1;
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}
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g_vars.two_players_flag = 0;
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level_data[g_vars.level * MAX_OBJECTS + OBJECT_NUM_PLAYER1] = PLAYER_JAKE;
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level_data[g_vars.level * MAX_OBJECTS + OBJECT_NUM_PLAYER2] = 100;
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g_vars.player = PLAYER_JAKE;
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if (g_sys.input.direction & INPUT_DIRECTION_RIGHT) {
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g_sys.input.direction &= ~INPUT_DIRECTION_RIGHT;
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for (int i = 0; i < colors_count; ++i) {
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screen_adjust_palette_color( 2, color_rgb, 1);
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screen_adjust_palette_color( 9, color_rgb, 1);
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screen_adjust_palette_color( 3, color_rgb, -1);
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screen_adjust_palette_color(10, color_rgb, -1);
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}
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screen_vsync();
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state = 1;
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frame1 = frame2 = 1;
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} else if (g_sys.input.direction & INPUT_DIRECTION_LEFT) {
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g_sys.input.direction &= ~INPUT_DIRECTION_LEFT;
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for (int i = 0; i < colors_count; ++i) {
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screen_adjust_palette_color(2, color_rgb, 1);
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screen_adjust_palette_color(9, color_rgb, 1);
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}
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screen_vsync();
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state = 2;
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frame1 = frame2 = 1;
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}
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break;
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case 1:
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screen_add_sprite(95, 155, animframe_00dd[frame1]);
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if (frame1 < animframe_00dd[0]) {
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++frame1;
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} else {
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frame1 = 4;
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}
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screen_add_sprite(190, 155, animframe_022d[frame2]);
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if (frame2 < animframe_022d[0]) {
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++frame2;
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} else {
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frame2 = 1;
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}
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g_vars.two_players_flag = 0;
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level_data[g_vars.level * MAX_OBJECTS + OBJECT_NUM_PLAYER1] = PLAYER_ELWOOD;
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level_data[g_vars.level * MAX_OBJECTS + OBJECT_NUM_PLAYER2] = 100;
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g_vars.player = PLAYER_ELWOOD;
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if (g_sys.input.direction & INPUT_DIRECTION_RIGHT) {
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g_sys.input.direction &= ~INPUT_DIRECTION_RIGHT;
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for (int i = 0; i < colors_count; ++i) {
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screen_adjust_palette_color( 3, color_rgb, 1);
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screen_adjust_palette_color(10, color_rgb, 1);
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}
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screen_vsync();
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state = 2;
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frame1 = frame2 = 1;
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} else if (g_sys.input.direction & INPUT_DIRECTION_LEFT) {
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g_sys.input.direction &= ~INPUT_DIRECTION_LEFT;
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for (int i = 0; i < colors_count; ++i) {
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screen_adjust_palette_color( 3, color_rgb, 1);
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screen_adjust_palette_color(10, color_rgb, 1);
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screen_adjust_palette_color( 2, color_rgb, -1);
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screen_adjust_palette_color( 9, color_rgb, -1);
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}
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screen_vsync();
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state = 0;
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frame1 = frame2 = 1;
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}
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break;
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case 2:
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screen_add_sprite(95, 155, animframe_0135[frame1]);
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if (frame1 < animframe_0135[0]) {
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++frame1;
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} else {
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frame1 = 1;
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}
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screen_add_sprite(190, 155, animframe_022d[frame2]);
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if (frame2 < animframe_022d[0]) {
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++frame2;
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} else {
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frame2 = 1;
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}
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g_vars.two_players_flag = 1;
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if (g_sys.input.direction & INPUT_DIRECTION_RIGHT) {
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g_sys.input.direction &= ~INPUT_DIRECTION_RIGHT;
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for (int i = 0; i < colors_count; ++i) {
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screen_adjust_palette_color(2, color_rgb, -1);
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screen_adjust_palette_color(9, color_rgb, -1);
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}
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screen_vsync();
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state = 0;
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frame1 = frame2 = 1;
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} else if (g_sys.input.direction & INPUT_DIRECTION_LEFT) {
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g_sys.input.direction &= ~INPUT_DIRECTION_LEFT;
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for (int i = 0; i < colors_count; ++i) {
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screen_adjust_palette_color( 3, color_rgb, -1);
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screen_adjust_palette_color(10, color_rgb, -1);
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}
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screen_vsync();
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state = 1;
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frame1 = frame2 = 1;
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}
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break;
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}
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// state_default_:
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if (!fade) {
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fade_in_palette();
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fade = 1;
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for (int i = 0; i < colors_count; ++i) {
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screen_adjust_palette_color( 3, color_rgb, 1);
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screen_adjust_palette_color(10, color_rgb, 1);
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}
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continue;
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}
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screen_clear_last_sprite();
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screen_redraw_sprites();
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if (g_vars.cheat_flag) {
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for (int i = 5; i >= 0; --i) {
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if (g_vars.inp_keyboard[2 + i]) {
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g_vars.level = i;
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break;
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}
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}
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// screen_draw_number_type1(_level + 1, 256, 148, 2);
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} else {
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check_cheat_code();
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}
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screen_flip();
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screen_vsync();
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const int diff = (timestamp + (1000 / 30)) - g_sys.get_timestamp();
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g_sys.sleep(diff < 10 ? 10 : diff);
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g_vars.screen_draw_offset ^= 0x2000;
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screen_clear_sprites();
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if (g_sys.input.space || g_vars.play_demo_flag) {
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quit = 1;
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}
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} while (!quit && !g_sys.input.quit);
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}
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static void do_inter_screen_helper(int xpos, int ypos, int c) {
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if (c != 0) {
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g_vars.screen_draw_offset ^= 0x2000;
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}
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for (int i = 0; i < 40; ++i) {
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screen_add_sprite(xpos + 20 - 1 - i, ypos - 20 + 1 + i, 125);
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screen_clear_last_sprite();
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screen_redraw_sprites();
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if (c != 0) {
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screen_vsync();
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}
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screen_clear_sprites();
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}
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for (int i = 0; i < 40; ++i) {
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screen_add_sprite(xpos - 20 + 1 + i, ypos - 20 + 1 + i, 125);
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screen_clear_last_sprite();
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screen_redraw_sprites();
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if (c != 0) {
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screen_vsync();
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}
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screen_clear_sprites();
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}
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if (c != 0) {
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g_vars.screen_draw_offset ^= 0x2000;
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}
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}
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static void do_inter_screen() {
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static const uint8_t xpos[] = { 0xFA, 0x50, 0xF0, 0xC8, 0x50, 0x50 };
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static const uint8_t ypos[] = { 0xAA, 0x37, 0x28, 0x5F, 0xA5, 0xAA };
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load_img(g_options.amiga_data ? "inter.lbm" : "inter.sqz");
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g_vars.screen_h = 199;
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screen_clear_sprites();
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if (g_vars.level > 1) {
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for (int i = 0; i < g_vars.level - 1; ++i) {
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do_inter_screen_helper(xpos[i], ypos[i], 0);
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}
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}
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if (g_vars.level == 5) {
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do_inter_screen_helper(xpos[g_vars.level], ypos[g_vars.level], 0);
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}
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fade_in_palette();
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if (g_vars.level > 0 && g_vars.level < 5) {
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do_inter_screen_helper(xpos[g_vars.level - 1], ypos[g_vars.level - 1], 1);
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}
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g_vars.screen_draw_offset = 0x2000;
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screen_do_transition2();
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screen_flip();
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if (g_vars.level < MAX_LEVELS - 1) {
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play_sound(SOUND_2);
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screen_add_sprite(xpos[g_vars.level], ypos[g_vars.level], 126);
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screen_clear_last_sprite();
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screen_redraw_sprites();
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}
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g_vars.screen_draw_offset = 0x2000;
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screen_flip();
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g_vars.screen_h = TILEMAP_SCREEN_H;
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const uint32_t timestamp = g_sys.get_timestamp() + 4 * 1000;
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do {
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update_input();
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if (g_sys.input.space || g_sys.input.quit) {
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break;
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}
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} while (g_sys.get_timestamp() < timestamp);
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fade_out_palette();
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}
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void game_main() {
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g_vars.screen_w = GAME_SCREEN_W;
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g_vars.screen_h = GAME_SCREEN_H;
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g_vars.screen_draw_offset = 0;
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screen_flip();
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screen_init();
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g_sys.set_screen_size(GAME_SCREEN_W, GAME_SCREEN_H, "Blues Brothers");
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g_vars.start_level = 0;
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load_sqv("sprite.sqv", g_res.spr_sqv, 0);
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if (g_options.amiga_sprites) {
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load_spr("sprite", g_res.spr_sqv, 0);
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// load_spr("objet", g_res.spr_sqv, 101);
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}
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if (g_options.amiga_colors) {
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uint16_t palette[16];
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for (int i = 0; i < 16; ++i) {
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assert(_colors2_data[i * 2] == 0x1a0 + i * 2);
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palette[i] = _colors2_data[i * 2 + 1];
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}
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g_sys.set_palette_amiga(palette, 16);
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}
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do_title_screen();
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while (g_sys.input.quit == 0) {
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if (!g_vars.level_completed_flag) {
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// _level_cheat_code = 0;
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g_vars.game_over_flag = 0;
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g_vars.play_level_flag = 1;
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if (!g_vars.play_demo_flag) {
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g_vars.level = g_options.start_level;
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do_select_player();
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} else {
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g_vars.level = g_vars.start_level;
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}
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screen_unk5();
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}
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while (g_sys.input.quit == 0 && g_vars.play_level_flag) {
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if (!g_vars.game_over_flag) {
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do_inter_screen();
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}
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load_level_data(g_vars.level);
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do_level();
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}
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}
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}
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