792 lines
21 KiB
C
792 lines
21 KiB
C
#include <sys/keycodes.h>
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#include <assert.h>
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#include <display.h>
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#include <err.h>
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#include <errno.h>
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#include <pixel.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <timespec.h>
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#define STAGES 8
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enum game_mode { TITLESCREEN, STAGE };
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enum game_mode game_mode = TITLESCREEN;
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bool stages_beat[STAGES];
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size_t stages_num;
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#define PLAYFIELD_SIDE 100
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#define TILE_SIDE 10
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#define TILES (PLAYFIELD_SIDE / TILE_SIDE)
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enum palette {
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BG = 0,
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TEXT,
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PLAYER_OUTLINE,
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PLAYER_SKIN,
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PLAYER_EYE,
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GRASS_TOP,
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GRASS_BROWN,
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GRASS_DARK,
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FLAG_STEM,
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FLAG_FLAG,
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SWITCH_SWITCH,
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TILE1,
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TILE2,
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TILE3,
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TILE4,
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STAR_STAR,
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};
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static enum palette playfield[PLAYFIELD_SIDE * PLAYFIELD_SIDE];
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#include "player_stand_tile.inc"
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#include "player_walk1_tile.inc"
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#include "player_walk2_tile.inc"
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#include "player_walk1_tile_reversed.inc"
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#include "player_walk2_tile_reversed.inc"
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#include "grass_tile.inc"
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#include "dirt_tile.inc"
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#include "flag_tile.inc"
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#include "switch1_off_tile.inc"
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#include "switch1_on_tile.inc"
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#include "switch2_off_tile.inc"
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#include "switch2_on_tile.inc"
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#include "switch3_off_tile.inc"
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#include "switch3_on_tile.inc"
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#include "switch4_off_tile.inc"
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#include "switch4_on_tile.inc"
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#include "switch0_off_tile.inc"
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#include "switch0_on_tile.inc"
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#include "tile1_off_tile.inc"
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#include "tile1_on_tile.inc"
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#include "tile2_off_tile.inc"
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#include "tile2_on_tile.inc"
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#include "tile3_off_tile.inc"
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#include "tile3_on_tile.inc"
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#include "tile4_off_tile.inc"
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#include "tile4_on_tile.inc"
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#include "stage1_tile.inc"
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#include "stage2_tile.inc"
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#include "stage3_tile.inc"
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#include "stage4_tile.inc"
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#include "stage5_tile.inc"
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#include "stage6_tile.inc"
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#include "stage7_tile.inc"
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#include "stage8_tile.inc"
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#include "star_tile.inc"
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#include "rebind_rebind1_tile.inc"
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#include "rebind_rebind2_tile.inc"
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#include "rebind_rebind3_tile.inc"
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#include "rebind_left1_tile.inc"
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#include "rebind_left2_tile.inc"
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#include "rebind_right1_tile.inc"
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#include "rebind_right2_tile.inc"
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#include "rebind_jump1_tile.inc"
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#include "rebind_jump2_tile.inc"
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#include "rebind_rebind1_alt_tile.inc"
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static char tilemap[TILES * TILES + 1];
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static char *stages[STAGES];
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static char *builtin_stages[] = {
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" "
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" "
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" "
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"! g "
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"gg g "
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" g"
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" g "
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" g "
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"@ gdg "
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"gg dddgg ",
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" "
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" "
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" "
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" "
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" "
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" "
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" A "
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" 11g "
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"@ !"
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"ggg gg",
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" "
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" "
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"B N"
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"2222222222"
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" 1 "
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" "
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"1 "
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" "
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"@A1 !"
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"g1 gg",
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" d "
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" d N "
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" d "
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" d g "
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" d "
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"Adg ggg"
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" 1 !"
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" g g"
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" gd gd"
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"ggggddggdd",
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" !"
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" D 4"
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"C 3 44"
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"3 3 4 "
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" B"
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" 222 2 2"
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" "
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" A 1 111"
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"@g "
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"gd ",
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" @ "
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"AggggggggB"
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" 1 "
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" 1 "
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"1ggBgggC11"
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" "
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"gg2ggg3333"
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" "
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" ! "
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" ggg ",
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" "
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" C N"
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" "
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" B 3 "
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" 2 3 "
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"1 3 1"
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" 12"
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"@ 1 123"
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"A1 123!"
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"1 123g",
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"@d B12 C"
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"A 1ggg"
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"11gggggd "
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" D"
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"gg44444444"
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" 22 "
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" 2 "
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" 2 2"
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" 2!"
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" 333333",
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};
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enum switches_state { ALL_OFF, SWITCH1, SWITCH2, SWITCH3, SWITCH4 };
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enum switches_state switches_state;
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static uint32_t main_window = 0;
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static uint32_t window_width = 500;
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static uint32_t window_height = 500;
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static bool game_running = true;
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static void on_disconnect(void *context) {
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(void) context;
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game_running = false;
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}
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static bool left_held, right_held, jump_held;
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static double jump_maxheight = 21;
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static double jump_duration = 0.4;
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static int left_key = KBKEY_LEFT;
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static int right_key = KBKEY_RIGHT;
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static int jump_key = KBKEY_SPACE;
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static int rebind_key = KBKEY_R;
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enum rebind_state { PLAYING, LEFT, RIGHT, JUMP, REBIND };
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enum rebind_state rebind_state;
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static void on_keyboard(void *context, uint32_t window, uint32_t codepoint) {
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(void) context;
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if (window != main_window)
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return;
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int key = KBKEY_DECODE(codepoint);
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switch (rebind_state) {
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case PLAYING:
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if (key == -rebind_key) rebind_state = LEFT;
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else if (key == left_key) left_held = true;
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else if (key == -left_key) left_held = false;
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else if (key == right_key) right_held = true;
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else if (key == -right_key) right_held = false;
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else if (key == jump_key) jump_held = true;
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else if (key == -jump_key) jump_held = false;
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break;
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case LEFT:
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if (key >= 0) return;
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left_key = -key;
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rebind_state = RIGHT;
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break;
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case RIGHT:
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if (key >= 0) return;
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right_key = -key;
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rebind_state = JUMP;
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break;
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case JUMP:
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if (key >= 0) return;
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jump_key = -key;
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rebind_state = REBIND;
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break;
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case REBIND:
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if (key >= 0) return;
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rebind_key = -key;
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rebind_state = PLAYING;
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break;
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}
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}
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static void on_quit(void *context, uint32_t window) {
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(void) context;
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if (window != main_window)
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return;
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game_running = false;
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}
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static void on_resize(void *context, uint32_t window, uint32_t width, uint32_t height) {
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(void) context;
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if (window != main_window)
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return;
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window_width = width;
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window_height = height;
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}
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static double timespec2double(struct timespec ts) {
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return ts.tv_sec + ts.tv_nsec / 1000.0 / 1000.0 / 1000.0;
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}
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static char sample_tilemap(size_t x, size_t y) {
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size_t tx = x / TILE_SIDE;
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size_t ty = y / TILE_SIDE;
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if (tx >= TILES || ty >= TILES) return ' ';
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return tilemap[ty * TILES + tx];
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}
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static bool solid_tile(size_t x, size_t y) {
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char tile = sample_tilemap(x, y);
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return tile != ' ' && tile != '!' && tile != '@' &&
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tile != 'A' && (tile != '1' || switches_state == SWITCH1) &&
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tile != 'B' && (tile != '2' || switches_state == SWITCH2) &&
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tile != 'C' && (tile != '3' || switches_state == SWITCH3) &&
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tile != 'D' && (tile != '4' || switches_state == SWITCH4) &&
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tile != 'N';
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}
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static bool jumping = false;
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static bool on_ground = false;
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static double jump_start_y;
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static double in_jump;
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static double player_x, player_y;
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static double player_dx, player_dy;
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static size_t selection_index = 0;
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static void initialize_stage(void) {
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strcpy(tilemap, stages[selection_index]);
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switches_state = ALL_OFF;
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jumping = false;
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on_ground = false;
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player_dx = 0;
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player_x = 0;
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player_y = 0;
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for (size_t ty = 0; ty < TILES; ty++) {
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for (size_t tx = 0; tx < TILES; tx++) {
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if (tilemap[ty * TILES + tx] == '@') {
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player_x = tx * TILE_SIDE;
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player_y = ty * TILE_SIDE;
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}
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}
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}
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}
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static bool keys_released;
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static bool stage_selected;
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static void initialize_titlescreen(void) {
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keys_released = false; stage_selected = false;
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}
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static void initialize(void) {
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switch (game_mode) {
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case TITLESCREEN: initialize_titlescreen(); break;
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case STAGE: initialize_stage(); break;
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default: printf("game_mode %i\n", game_mode);
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}
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}
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static void update_stage(struct timespec now, struct timespec dt_timespec) {
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(void) now;
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double dt = timespec2double(dt_timespec);
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player_x += player_dx * dt;
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if (left_held) player_dx = -30;
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else if (right_held) player_dx = 30;
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else player_dx = 0;
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if (on_ground && jump_held && !jumping) {
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jumping = true;
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in_jump = 0;
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jump_start_y = player_y;
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}
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if (!on_ground && !jumping) {
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jumping = true;
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in_jump = jump_duration;
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jump_start_y = player_y + jump_maxheight;
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}
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if (jumping) {
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in_jump += dt;
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// Jump is a quadratic arc
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// h = at^2 + bt + c
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//
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// Beginning of jump, zero height
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// t = 0, h = 0
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// 0 = a0^2 + b0 + c
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// c = 0
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//
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// At 2*duration, zero height
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// t = 2T, h = 0
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// 0 = a(2T)^2 + b(2T) + 0
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// 0 = 4aT^2 + 2bT
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// 0 = 2aT^2 + bT
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// 0 = 2aT + b
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// b = -2aT
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//
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// At duration, maximum height
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// t = T, h = H
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// H = aT^2 + bT + 0
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// H = aT^2 - 2aT^2
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// H = -aT^2
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// a = -H / (T^2)
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// b
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double a = -jump_maxheight / (jump_duration * jump_duration);
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double b = -2 * a * jump_duration;
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double jump_height = a * in_jump * in_jump + b * in_jump;
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player_y = jump_start_y - jump_height;
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// player_dy is negative of derivative of jump_height
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// H = a*t^2 + b*t
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// H' = 2*a*t + b
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player_dy = -2 * a * in_jump - b;
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}
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// Collision against walls of the map
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if (player_x < 0) {
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player_x = 0;
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player_dx = 0;
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} else if (player_x > PLAYFIELD_SIDE - TILE_SIDE) {
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player_x = PLAYFIELD_SIDE - TILE_SIDE;
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player_dx = 0;
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}
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if (player_y < 0) {
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player_y = 0;
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player_dy = 0;
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} else if (player_y > PLAYFIELD_SIDE - TILE_SIDE) {
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player_y = PLAYFIELD_SIDE - TILE_SIDE;
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player_dy = 0;
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game_mode = TITLESCREEN;
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initialize();
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return;
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}
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// Collision against tiles
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size_t px = player_x;
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size_t py = player_y;
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size_t topbottom_left_cx = px + 1;
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size_t topbottom_right_cx = px + TILE_SIDE - 1 - 1;
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size_t top_cy = py - 1;
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size_t bottom_cy = py + TILE_SIDE;
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on_ground = false;
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if (solid_tile(topbottom_left_cx, bottom_cy) ||
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solid_tile(topbottom_right_cx, bottom_cy)) {
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on_ground = true;
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if (player_dy > 0) {
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jumping = false;
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size_t snapped_py = py / TILE_SIDE * TILE_SIDE;
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player_y = snapped_py;
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}
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}
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if ((solid_tile(topbottom_left_cx, top_cy) ||
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solid_tile(topbottom_right_cx, top_cy)) &&
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player_dy < 0) {
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size_t snapped_py = (py + TILE_SIDE - 1) / TILE_SIDE * TILE_SIDE;
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player_y = snapped_py;
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in_jump = jump_duration;
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jump_start_y = player_y + jump_maxheight;
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}
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px = player_x;
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py = player_y;
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size_t left_cx = px - 1;
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size_t right_cx = px + TILE_SIDE;
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size_t leftright_top_cy = py;
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size_t leftright_bottom_cy = py + TILE_SIDE - 3; //XXX: proper handling of snapping
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if ((solid_tile(left_cx, leftright_top_cy) ||
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solid_tile(left_cx, leftright_bottom_cy)) &&
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player_dx < 0) {
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size_t snapped_px = (px + TILE_SIDE - 1) / TILE_SIDE * TILE_SIDE;
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player_x = snapped_px;
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player_dx = 0;
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}
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if ((solid_tile(right_cx, leftright_top_cy) ||
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solid_tile(right_cx, leftright_bottom_cy)) &&
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player_dx > 0) {
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size_t snapped_px = px / TILE_SIDE * TILE_SIDE;
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player_x = snapped_px;
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player_dx = 0;
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}
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// Touching tiles
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size_t midpoint_x = player_x + TILE_SIDE / 2;
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size_t midpoint_y = player_y + TILE_SIDE / 2;
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switch(sample_tilemap(midpoint_x, midpoint_y)) {
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case '!':
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stages_beat[selection_index] = true;
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if (selection_index + 1 < stages_num)
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selection_index++;
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game_mode = TITLESCREEN;
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initialize();
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return;
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case 'A':
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switches_state = SWITCH1;
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break;
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case 'B':
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switches_state = SWITCH2;
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break;
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case 'C':
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switches_state = SWITCH3;
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break;
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case 'D':
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switches_state = SWITCH4;
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break;
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case 'N':
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switches_state = ALL_OFF;
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}
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}
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static void update_titlescreen(struct timespec now, struct timespec dt_timespec) {
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(void) now;
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(void) dt_timespec;
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if (keys_released && left_held && selection_index > 0)
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selection_index--;
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if (keys_released && right_held && selection_index + 1 < stages_num)
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selection_index++;
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if (keys_released && jump_held)
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stage_selected = true;
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if (!left_held && !right_held && !jump_held)
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keys_released = true;
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else
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keys_released = false;
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if (stage_selected && keys_released) {
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game_mode = STAGE;
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initialize();
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}
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}
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static void update(struct timespec now, struct timespec dt_timespec) {
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if (rebind_state != PLAYING) return;
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switch (game_mode) {
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case TITLESCREEN: update_titlescreen(now, dt_timespec); break;
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case STAGE: update_stage(now, dt_timespec); break;
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default: printf("game_mode %i\n", game_mode);
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}
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}
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static void draw_tile(enum palette tile[], size_t x, size_t y) {
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assert(x + TILE_SIDE <= PLAYFIELD_SIDE);
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assert(y + TILE_SIDE <= PLAYFIELD_SIDE);
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for (size_t ty = 0; ty < TILE_SIDE; ty++) {
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for (size_t tx = 0; tx < TILE_SIDE; tx++) {
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enum palette pixel = tile[ty * TILE_SIDE + tx];
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if (pixel != BG)
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playfield[(y + ty) * PLAYFIELD_SIDE + x + tx] = pixel;
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}
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}
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}
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static void draw_tiles(void) {
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assert(strlen(tilemap) == TILES * TILES);
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for (size_t ty = 0; ty < TILES; ty++) {
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for (size_t tx = 0; tx < TILES; tx++) {
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enum palette *tile = NULL;
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switch(tilemap[ty * TILES + tx]) {
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case 'g': tile = grass_tile; break;
|
|
case 'd': tile = dirt_tile; break;
|
|
case '!': tile = flag_tile; break;
|
|
case 'A': tile = switches_state == SWITCH1 ? switch1_on_tile : switch1_off_tile; break;
|
|
case 'B': tile = switches_state == SWITCH2 ? switch2_on_tile : switch2_off_tile; break;
|
|
case 'C': tile = switches_state == SWITCH3 ? switch3_on_tile : switch3_off_tile; break;
|
|
case 'D': tile = switches_state == SWITCH4 ? switch4_on_tile : switch4_off_tile; break;
|
|
case 'N': tile = switches_state == ALL_OFF ? switch0_on_tile : switch0_off_tile; break;
|
|
case '1': tile = switches_state == SWITCH1 ? tile1_on_tile : tile1_off_tile; break;
|
|
case '2': tile = switches_state == SWITCH2 ? tile2_on_tile : tile2_off_tile; break;
|
|
case '3': tile = switches_state == SWITCH3 ? tile3_on_tile : tile3_off_tile; break;
|
|
case '4': tile = switches_state == SWITCH4 ? tile4_on_tile : tile4_off_tile; break;
|
|
}
|
|
if (tile)
|
|
draw_tile(tile, tx * TILE_SIDE, ty * TILE_SIDE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void draw_stage(struct timespec now) {
|
|
draw_tiles();
|
|
if (right_held && now.tv_nsec % 500000000L < 250000000L && on_ground)
|
|
draw_tile(player_walk2_tile, player_x, player_y);
|
|
else if (right_held)
|
|
draw_tile(player_walk1_tile, player_x, player_y);
|
|
else if (left_held && now.tv_nsec % 500000000L < 250000000L && on_ground)
|
|
draw_tile(player_walk2_tile_reversed, player_x, player_y);
|
|
else if (left_held)
|
|
draw_tile(player_walk1_tile_reversed, player_x, player_y);
|
|
else
|
|
draw_tile(player_stand_tile, player_x, player_y);
|
|
}
|
|
|
|
static void draw_titlescreen(struct timespec now) {
|
|
(void) now;
|
|
for (size_t i = 0; i < stages_num; i++) {
|
|
size_t x = i * TILE_SIDE + TILE_SIDE;
|
|
size_t y = 0;
|
|
if (stages_beat[i])
|
|
draw_tile(star_tile, x, y);
|
|
}
|
|
if (stages_num >= 1) draw_tile(stage1_tile, 1 * TILE_SIDE, TILE_SIDE);
|
|
if (stages_num >= 2) draw_tile(stage2_tile, 2 * TILE_SIDE, TILE_SIDE);
|
|
if (stages_num >= 3) draw_tile(stage3_tile, 3 * TILE_SIDE, TILE_SIDE);
|
|
if (stages_num >= 4) draw_tile(stage4_tile, 4 * TILE_SIDE, TILE_SIDE);
|
|
if (stages_num >= 5) draw_tile(stage5_tile, 5 * TILE_SIDE, TILE_SIDE);
|
|
if (stages_num >= 6) draw_tile(stage6_tile, 6 * TILE_SIDE, TILE_SIDE);
|
|
if (stages_num >= 7) draw_tile(stage7_tile, 7 * TILE_SIDE, TILE_SIDE);
|
|
if (stages_num >= 8) draw_tile(stage8_tile, 8 * TILE_SIDE, TILE_SIDE);
|
|
size_t underline_y = 2 * TILE_SIDE + 1;
|
|
size_t underline_x = selection_index * TILE_SIDE + TILE_SIDE + 2;
|
|
for (size_t x = 0; x < TILE_SIDE - 4; x++)
|
|
playfield[underline_y * PLAYFIELD_SIDE + underline_x + x] = TEXT;
|
|
}
|
|
|
|
static void draw(struct timespec now) {
|
|
memset(playfield, 0, sizeof(playfield));
|
|
if (rebind_state == PLAYING) {
|
|
switch (game_mode) {
|
|
case TITLESCREEN: draw_titlescreen(now); break;
|
|
case STAGE: draw_stage(now); break;
|
|
default: printf("game_mode %i\n", game_mode);
|
|
}
|
|
} else {
|
|
draw_tile(rebind_rebind1_tile, 0 * TILE_SIDE, 0);
|
|
draw_tile(rebind_rebind2_tile, 1 * TILE_SIDE, 0);
|
|
draw_tile(rebind_rebind3_tile, 2 * TILE_SIDE, 0);
|
|
switch (rebind_state) {
|
|
case LEFT:
|
|
draw_tile(rebind_left1_tile, 3 * TILE_SIDE, 0);
|
|
draw_tile(rebind_left2_tile, 4 * TILE_SIDE, 0);
|
|
break;
|
|
case RIGHT:
|
|
draw_tile(rebind_right1_tile, 3 * TILE_SIDE, 0);
|
|
draw_tile(rebind_right2_tile, 4 * TILE_SIDE, 0);
|
|
break;
|
|
case JUMP:
|
|
draw_tile(rebind_jump1_tile, 3 * TILE_SIDE, 0);
|
|
draw_tile(rebind_jump2_tile, 4 * TILE_SIDE, 0);
|
|
break;
|
|
case REBIND:
|
|
draw_tile(rebind_rebind1_alt_tile, 3 * TILE_SIDE, 0);
|
|
draw_tile(rebind_rebind2_tile, 4 * TILE_SIDE, 0);
|
|
draw_tile(rebind_rebind3_tile, 5 * TILE_SIDE, 0);
|
|
break;
|
|
default:
|
|
printf("rebind_state %i\n", rebind_state);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void load_stages(char *path) {
|
|
FILE *f = fopen(path, "r");
|
|
if (!f)
|
|
err(1, "%s", path);
|
|
|
|
stages_num = 0;
|
|
|
|
bool in_comment = true;
|
|
size_t linenum = 0;
|
|
size_t stage_fill = 0;
|
|
char *stage[10];
|
|
while (true) {
|
|
linenum++;
|
|
char *line = NULL;
|
|
size_t size = 0;
|
|
ssize_t length = getline(&line, &size, f);
|
|
if (length < 0) {
|
|
break;
|
|
free(line);
|
|
}
|
|
if (line[length - 1] == '\n') {
|
|
line[length - 1] = 0;
|
|
length--;
|
|
}
|
|
if (!strcmp(line, "----------")) {
|
|
if (in_comment) {
|
|
in_comment = false;
|
|
continue;
|
|
} else {
|
|
if (stages_num == STAGES)
|
|
errx(1, "%s: %zu: Too many stages (maximum %zu)", path, linenum, (size_t)STAGES);
|
|
free(line);
|
|
if (stage_fill < 10)
|
|
errx(1, "%s: %zu: Not enough lines for a stage (expected 10, got %zu)", path, linenum, stage_fill);
|
|
char *stage_str;
|
|
asprintf(&stage_str, "%s%s%s%s%s%s%s%s%s%s", stage[0], stage[1], stage[2], stage[3], stage[4], stage[5], stage[6], stage[7], stage[8], stage[9]);
|
|
stages[stages_num++] = stage_str;
|
|
for (size_t i = 0; i < stage_fill; i++)
|
|
free(stage[i]);
|
|
stage_fill = 0;
|
|
continue;
|
|
}
|
|
} else if (stage_fill == 10)
|
|
errx(1, "%s: %zu: Too many lines for a stage (expected 10)", path, linenum);
|
|
if (in_comment)
|
|
free(line);
|
|
else if (length < 10)
|
|
errx(1, "%s: %zu: Line too short (expected 10 character, got %zd)", path, linenum, length);
|
|
else if (length > 10)
|
|
errx(1, "%s: %zu: Line too long (expected 10 character, got %zd)", path, linenum, length);
|
|
else
|
|
stage[stage_fill++] = line;
|
|
}
|
|
|
|
if (stage_fill) {
|
|
if (stages_num == STAGES)
|
|
errx(1, "%s: %zu: Too many stages (maximum %zu)", path, linenum, (size_t)STAGES);
|
|
if (stage_fill < 10)
|
|
errx(1, "%s: %zu: Not enough lines for a stage (expected 10, got %zu)", path, linenum, stage_fill);
|
|
char *stage_str;
|
|
asprintf(&stage_str, "%s%s%s%s%s%s%s%s%s%s", stage[0], stage[1], stage[2], stage[3], stage[4], stage[5], stage[6], stage[7], stage[8], stage[9]);
|
|
stages[stages_num++] = stage_str;
|
|
for (size_t i = 0; i < stage_fill; i++)
|
|
free(stage[i]);
|
|
}
|
|
|
|
if (!stages_num)
|
|
errx(1, "%s: Bundle did not contain any stages", path);
|
|
|
|
fclose(f);
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
if (argc == 1) {
|
|
stages_num = sizeof(builtin_stages) / sizeof(*builtin_stages);
|
|
for (size_t i = 0; i < stages_num; i++) {
|
|
stages[i] = builtin_stages[i];
|
|
}
|
|
} else if (argc == 2)
|
|
load_stages(argv[1]);
|
|
else {
|
|
printf("Usage: %s [/path/to/stage-bundle]\n", argv[0]);
|
|
return 1;
|
|
}
|
|
|
|
struct display_connection *connection = display_connect_default();
|
|
if (!connection && errno == ECONNREFUSED)
|
|
display_spawn(argc, argv);
|
|
if (!connection)
|
|
err(1, "Could not connect to display server");
|
|
|
|
display_create_window(connection, main_window);
|
|
display_resize_window(connection, main_window, window_width, window_height);
|
|
display_show_window(connection, main_window);
|
|
|
|
struct display_event_handlers handlers = {0};
|
|
handlers.disconnect_handler = on_disconnect;
|
|
handlers.keyboard_handler = on_keyboard;
|
|
handlers.quit_handler = on_quit;
|
|
handlers.resize_handler = on_resize;
|
|
|
|
uint32_t palette_colours[] = {
|
|
[BG] = make_color(128, 128, 255),
|
|
[TEXT] = make_color(255, 255, 255),
|
|
[PLAYER_OUTLINE] = make_color(0, 0, 0),
|
|
[PLAYER_SKIN] = make_color(180, 100, 64),
|
|
[PLAYER_EYE] = make_color(255, 255, 255),
|
|
[GRASS_TOP] = make_color(0, 220, 0),
|
|
[GRASS_BROWN] = make_color(200, 128, 0),
|
|
[GRASS_DARK] = make_color(100, 64, 0),
|
|
[FLAG_STEM] = make_color(0, 0, 0),
|
|
[FLAG_FLAG] = make_color(255, 0, 0),
|
|
[SWITCH_SWITCH] = make_color(200, 64, 0),
|
|
[TILE1] = make_color(0, 255, 0),
|
|
[TILE2] = make_color(0, 0, 255),
|
|
[TILE3] = make_color(255, 0, 0),
|
|
[TILE4] = make_color(255, 255, 0),
|
|
[STAR_STAR] = make_color(255, 255, 0),
|
|
};
|
|
|
|
long fps_cap = 100;
|
|
struct timespec min_dt = timespec_make(0, 1000L * 1000L * 1000L / fps_cap);
|
|
struct timespec last_frame;
|
|
clock_gettime(CLOCK_MONOTONIC, &last_frame);
|
|
|
|
initialize();
|
|
|
|
int fps = 0;
|
|
while (game_running) {
|
|
struct timespec now;
|
|
clock_gettime(CLOCK_MONOTONIC, &now);
|
|
struct timespec dt = timespec_sub(now, last_frame);
|
|
if (timespec_lt(dt, min_dt)) {
|
|
struct timespec sleep = timespec_sub(min_dt, dt);
|
|
nanosleep(&sleep, NULL);
|
|
continue;
|
|
}
|
|
|
|
if (last_frame.tv_sec != now.tv_sec) {
|
|
char *title = NULL;
|
|
asprintf(&title, "Switcher (%i fps)", fps);
|
|
display_title_window(connection, main_window, title);
|
|
free(title);
|
|
fps = 0;
|
|
} else
|
|
fps++;
|
|
|
|
update(now, dt);
|
|
draw(now);
|
|
|
|
size_t pixels;
|
|
if (__builtin_mul_overflow(window_width, window_height, &pixels))
|
|
errx(1, "Window size too big");
|
|
uint32_t *framebuffer = calloc(pixels, sizeof(uint32_t));
|
|
|
|
uint32_t shorter_side = window_height < window_width ? window_height : window_width;
|
|
size_t y_offset = (window_height - shorter_side) / 2;
|
|
size_t x_offset = (window_width - shorter_side) / 2;
|
|
for (size_t y = 0; y < window_height; y++) {
|
|
for (size_t x = 0; x < window_width; x++) {
|
|
if (y < y_offset || x < x_offset ||
|
|
y >= y_offset + shorter_side || x >= x_offset + shorter_side)
|
|
framebuffer[y * window_width + x] = make_color_a(0, 0, 0, 200);
|
|
else {
|
|
size_t pf_x = (x - x_offset) * PLAYFIELD_SIDE / shorter_side;
|
|
size_t pf_y = (y - y_offset) * PLAYFIELD_SIDE / shorter_side;
|
|
uint32_t colour = palette_colours[playfield[pf_y * PLAYFIELD_SIDE + pf_x]];
|
|
framebuffer[y * window_width + x] = colour;
|
|
}
|
|
}
|
|
}
|
|
display_render_window(connection, main_window, 0, 0, window_width, window_height, framebuffer);
|
|
free(framebuffer);
|
|
|
|
while (!display_poll_event(connection, &handlers));
|
|
|
|
last_frame = now;
|
|
}
|
|
|
|
display_disconnect(connection);
|
|
|
|
return 0;
|
|
}
|