path: root/game.c

#include <stdio.h>

#define TB_IMPL
#include "termbox2.h"

#define NONSTD_IMPLEMENTATION
#include "nonstd.h"

#include "maps.h"

#define MIN_W 40
#define MIN_H 12
#define SIDEBAR_W 40
#define CP_H 0x2500
#define CP_V 0x2502
#define CP_TL 0x250c
#define CP_TR 0x2510
#define CP_BL 0x2514
#define CP_BR 0x2518
#define MAP_FLOOR_CH '.'
#define MAP_BORDER_MIN 0x2500
#define MAP_BORDER_MAX 0x257f
#define MAP_FLOOR_FG 234
#define COLOR_WHITE_256 0x0f
#define COLOR_RED_256 161
#define COLOR_GREEN_256 0x2e
#define COLOR_BORDER_256 101
#define COLOR_CYAN_256 0x33
#define COLOR_ORANGE_256 0xd0
#define COLOR_BLUE_256 0x1b

typedef struct {
	char key;
	const char *name;
} InventoryItem;

typedef struct {
	array(InventoryItem) items;
} Inventory;

typedef struct {
	int x;
	int y;
	int hp;
	int hp_max;
	int ac;
	int str;
	int gold;
	Inventory inventory;
} Player;

#define DIALOG_HISTORY_MAX 16

typedef struct {
	char prompt[128];
	char response[256];
} DialogEntry;

typedef struct {
	int open;
	char input[128];
	int input_len;
	int npc_index;
	DialogEntry entries[DIALOG_HISTORY_MAX];
	int entry_count;
} Dialog;

static int clamp(int value, int min, int max);

static void draw_border(int x, int y, int w, int h, uintattr_t fg) {
	int ix;
	int iy;

	for (ix = 0; ix < w; ix++) {
		tb_set_cell(x + ix, y, CP_H, fg, TB_DEFAULT);
		tb_set_cell(x + ix, y + h - 1, CP_H, fg, TB_DEFAULT);
	}
	for (iy = 0; iy < h; iy++) {
		tb_set_cell(x, y + iy, CP_V, fg, TB_DEFAULT);
		tb_set_cell(x + w - 1, y + iy, CP_V, fg, TB_DEFAULT);
	}

	tb_set_cell(x, y, CP_TL, fg, TB_DEFAULT);
	tb_set_cell(x + w - 1, y, CP_TR, fg, TB_DEFAULT);
	tb_set_cell(x, y + h - 1, CP_BL, fg, TB_DEFAULT);
	tb_set_cell(x + w - 1, y + h - 1, CP_BR, fg, TB_DEFAULT);
}

static void draw_border_bg(int x, int y, int w, int h, uintattr_t fg,
	uintattr_t bg) {
	int ix;
	int iy;

	for (ix = 0; ix < w; ix++) {
		tb_set_cell(x + ix, y, CP_H, fg, bg);
		tb_set_cell(x + ix, y + h - 1, CP_H, fg, bg);
	}
	for (iy = 0; iy < h; iy++) {
		tb_set_cell(x, y + iy, CP_V, fg, bg);
		tb_set_cell(x + w - 1, y + iy, CP_V, fg, bg);
	}

	tb_set_cell(x, y, CP_TL, fg, bg);
	tb_set_cell(x + w - 1, y, CP_TR, fg, bg);
	tb_set_cell(x, y + h - 1, CP_BL, fg, bg);
	tb_set_cell(x + w - 1, y + h - 1, CP_BR, fg, bg);
}

static void get_layout(int w, int h, int *map_x, int *map_y, int *map_w,
	int *map_h, int *side_x, int *side_y, int *side_w, int *side_h,
	int *msg1_y, int *msg2_y) {
	*map_x = 0;
	*map_y = 0;
	*map_w = w - SIDEBAR_W;
	*map_h = h - 2;
	*side_x = w - SIDEBAR_W;
	*side_y = 0;
	*side_w = SIDEBAR_W;
	*side_h = h - 2;
	*msg1_y = h - 2;
	*msg2_y = h - 1;
}

static void map_init(Map *map, const unsigned char *data, int len) {
	array(int) line_lengths;
	int width = 0;
	int height = 0;
	int line_len = 0;
	int i = 0;

	map->data = data;
	map->len = len;
	map->cells = NULL;
	array_init(line_lengths);
	while (i < len) {
		uint32_t ch = 0;
		int consumed = tb_utf8_char_to_unicode(&ch, (const char *)&data[i]);
		if (consumed <= 0) {
			i++;
			continue;
		}
		i += consumed;
		if (ch == '\n') {
			array_push(line_lengths, line_len);
			if (line_len > width) {
				width = line_len;
			}
			height++;
			line_len = 0;
		} else {
			line_len++;
		}
	}
	if (line_len > 0 || (len > 0 && data[len - 1] != '\n')) {
		array_push(line_lengths, line_len);
		if (line_len > width) {
			width = line_len;
		}
		height++;
	}

	map->width = width;
	map->height = height;
	if (width > 0 && height > 0) {
		map->cells = ALLOC(u32, (usize)width * (usize)height);
		for (int y = 0; y < height; y++) {
			for (int x = 0; x < width; x++) {
				map->cells[(y * width) + x] = ' ';
			}
		}
	}

	i = 0;
	int x = 0;
	int y = 0;
	while (i < len && y < height) {
		uint32_t ch = 0;
		int consumed = tb_utf8_char_to_unicode(&ch, (const char *)&data[i]);
		if (consumed <= 0) {
			i++;
			continue;
		}
		i += consumed;
		if (ch == '\n') {
			y++;
			x = 0;
			continue;
		}
		if (map->cells && x < width) {
			map->cells[(y * width) + x] = ch;
		}
		x++;
	}
	array_free(line_lengths);
}

static u32 map_get(const Map *map, int x, int y) {
	if (!map->cells || x < 0 || y < 0 || x >= map->width || y >= map->height) {
		return ' ';
	}
	return map->cells[(y * map->width) + x];
}

static void map_set(Map *map, int x, int y, u32 ch) {
	if (!map->cells || x < 0 || y < 0 || x >= map->width || y >= map->height) {
		return;
	}
	map->cells[(y * map->width) + x] = ch;
}

static int map_is_walkable(const Map *map, int x, int y) {
	u32 ch = map_get(map, x, y);
	return ch == MAP_FLOOR_CH || ch == '$' || ch == 'N'
		|| (ch >= '0' && ch <= '9');
}

static int npc_index_from_tile(u32 ch) {
	if (ch >= '0' && ch <= '9') {
		return (int)(ch - '0');
	}
	return -1;
}

static void map_free(Map *map) {
	FREE(map->cells);
}

static void update_camera(const Map *map, int view_w, int view_h,
	const Player *player, int *cam_x, int *cam_y) {
	int max_cam_x;
	int max_cam_y;
	int margin_x;
	int margin_y;
	int next_x = *cam_x;
	int next_y = *cam_y;

	if (view_w <= 0 || view_h <= 0 || map->width <= 0 || map->height <= 0) {
		*cam_x = 0;
		*cam_y = 0;
		return;
	}

	margin_x = view_w > 8 ? 3 : view_w / 3;
	margin_y = view_h > 8 ? 3 : view_h / 3;
	max_cam_x = map->width - view_w;
	max_cam_y = map->height - view_h;
	if (max_cam_x < 0) {
		max_cam_x = 0;
	}
	if (max_cam_y < 0) {
		max_cam_y = 0;
	}

	if (player->x < next_x + margin_x) {
		next_x = player->x - margin_x;
	} else if (player->x > next_x + view_w - 1 - margin_x) {
		next_x = player->x - (view_w - 1 - margin_x);
	}
	if (player->y < next_y + margin_y) {
		next_y = player->y - margin_y;
	} else if (player->y > next_y + view_h - 1 - margin_y) {
		next_y = player->y - (view_h - 1 - margin_y);
	}

	*cam_x = clamp(next_x, 0, max_cam_x);
	*cam_y = clamp(next_y, 0, max_cam_y);
}

static void draw_map(const Map *map, int map_x, int map_y, int view_w,
	int view_h, const Player *player, int cam_x, int cam_y) {
	int ix;
	int iy;

	for (iy = 0; iy < view_h; iy++) {
		for (ix = 0; ix < view_w; ix++) {
			int mx = cam_x + ix;
			int my = cam_y + iy;
			u32 ch = map_get(map, mx, my);
			u32 draw_ch = (ch >= '0' && ch <= '9') ? 'N' : ch;
			uintattr_t fg = COLOR_WHITE_256;
			if (ch == MAP_FLOOR_CH) {
				fg = MAP_FLOOR_FG;
			} else if (ch == '~') {
				fg = COLOR_BLUE_256;
			} else if (ch == '$') {
				fg = COLOR_ORANGE_256;
			} else if (ch == 'B' || ch == 'S' || ch == 'G') {
				fg = COLOR_RED_256;
			} else if (ch == 'N' || (ch >= '0' && ch <= '9')) {
				fg = COLOR_CYAN_256;
			} else if (ch >= MAP_BORDER_MIN && ch <= MAP_BORDER_MAX) {
				fg = COLOR_BORDER_256;
			}
			tb_set_cell(map_x + ix, map_y + iy, draw_ch, fg, TB_DEFAULT);
		}
	}

	if (player->x >= cam_x && player->x < cam_x + view_w && player->y >= cam_y
		&& player->y < cam_y + view_h) {
		int sx = map_x + (player->x - cam_x);
		int sy = map_y + (player->y - cam_y);
		tb_set_cell(sx, sy, '@', COLOR_GREEN_256 | TB_BOLD, TB_DEFAULT);
	}
}

static void draw_progress_bar(int x, int y, int w, int value, int max) {
	int filled;
	int ix;
	int inner_w = w - 2;

	if (w < 4) {
		return;
	}
	if (max <= 0) {
		max = 1;
	}
	if (value < 0) {
		value = 0;
	}
	if (value > max) {
		value = max;
	}

	filled = (inner_w * value) / max;
	tb_set_cell(x, y, '[', COLOR_WHITE_256, TB_DEFAULT);
	for (ix = 0; ix < inner_w; ix++) {
	uintattr_t fg = ix < filled ? COLOR_GREEN_256 : COLOR_WHITE_256;
		uint32_t ch = ix < filled ? '=' : ' ';
		tb_set_cell(x + 1 + ix, y, ch, fg, TB_DEFAULT);
	}
	tb_set_cell(x + w - 1, y, ']', COLOR_WHITE_256, TB_DEFAULT);
}

static void inventory_init(Inventory *inv) {
	array_init(inv->items);
}

static void inventory_add(Inventory *inv, char key, const char *name) {
	InventoryItem item = {.key = key, .name = name};
	array_push(inv->items, item);
}

static void inventory_free(Inventory *inv) {
	array_free(inv->items);
}

static void player_init(Player *player) {
	player->x = 6;
	player->y = 4;
	player->hp = 12;
	player->hp_max = 12;
	player->ac = 7;
	player->str = 16;
	player->gold = 42;
	inventory_init(&player->inventory);
	inventory_add(&player->inventory, 'a', "dagger");
	inventory_add(&player->inventory, 'b', "ration");
	inventory_add(&player->inventory, 'c', "potion");
	inventory_add(&player->inventory, 'd', "scroll");
}

static void player_free(Player *player) {
	inventory_free(&player->inventory);
}

static void draw_stats(int x, int y, const Player *player) {
	tb_print(x, y, COLOR_WHITE_256 | TB_BOLD, TB_DEFAULT, "Stats");
	tb_printf(x, y + 2, COLOR_WHITE_256, TB_DEFAULT, "HP %d/%d", player->hp, player->hp_max);
	draw_progress_bar(x, y + 3, 18, player->hp, player->hp_max);
	tb_printf(x, y + 4, COLOR_WHITE_256, TB_DEFAULT, "AC: %d", player->ac);
	tb_printf(x, y + 5, COLOR_WHITE_256, TB_DEFAULT, "Str: %d", player->str);
	tb_printf(x, y + 6, COLOR_WHITE_256, TB_DEFAULT, "Gold: %d", player->gold);
}

static void draw_inventory(int x, int y, const Inventory *inv) {
	InventoryItem item;
	usize idx = 0;

	tb_print(x, y, COLOR_WHITE_256 | TB_BOLD, TB_DEFAULT, "Inventory");
	array_foreach(inv->items, item) {
		tb_printf(x, y + 2 + (int)idx, COLOR_WHITE_256, TB_DEFAULT, "%c) %s", item.key, item.name);
		idx++;
	}
}

static const char *status_msg = "";

static void update_status(const char *message) {
	status_msg = message ? message : "";
}

static void copy_truncated(char *dst, size_t dst_size, const char *src, int max_chars) {
	int i = 0;
	if (dst_size == 0) {
		return;
	}
	if (max_chars < 0) {
		max_chars = 0;
	}
	while (i < max_chars && src[i] != '\0' && i < (int)dst_size - 1) {
		dst[i] = src[i];
		i++;
	}
	dst[i] = '\0';
}

static void dialog_open(Dialog *dialog, int npc_index) {
	dialog->open = 1;
	dialog->input_len = 0;
	dialog->input[0] = '\0';
	dialog->npc_index = npc_index;
}

static void dialog_close(Dialog *dialog) {
	dialog->open = 0;
	dialog->npc_index = -1;
}

static void dialog_append(Dialog *dialog, uint32_t ch) {
	if (ch < 32 || ch > 126) {
		return;
	}
	if (dialog->input_len >= (int)(sizeof(dialog->input) - 1)) {
		return;
	}
	dialog->input[dialog->input_len++] = (char)ch;
	dialog->input[dialog->input_len] = '\0';
}

static void dialog_backspace(Dialog *dialog) {
	if (dialog->input_len <= 0) {
		return;
	}
	dialog->input_len--;
	dialog->input[dialog->input_len] = '\0';
}

static void dialog_submit(Dialog *dialog, const GameMap *game_map) {
	if (dialog->input_len == 0) {
		return;
	}
	{
		const char *demo = "Demo reply: The old ruins are north of here.";
		const char *reply = demo;
		if (game_map && dialog->npc_index >= 0 && dialog->npc_index < 10) {
			const char *npc_reply = game_map->npcs[dialog->npc_index].reply;
			if (npc_reply && npc_reply[0] != '\0') {
				reply = npc_reply;
			}
		}
		if (dialog->entry_count >= DIALOG_HISTORY_MAX) {
			for (int i = 1; i < DIALOG_HISTORY_MAX; i++) {
				dialog->entries[i - 1] = dialog->entries[i];
			}
			dialog->entry_count = DIALOG_HISTORY_MAX - 1;
		}
		snprintf(dialog->entries[dialog->entry_count].prompt,
			sizeof(dialog->entries[dialog->entry_count].prompt), "%s", dialog->input);
		snprintf(dialog->entries[dialog->entry_count].response,
			sizeof(dialog->entries[dialog->entry_count].response), "%s", reply);
		dialog->entry_count++;
	}
	dialog->input_len = 0;
	dialog->input[0] = '\0';
}

static void update_npc_status(const GameMap *game_map, int npc_index) {
	static char status_buf[128];
	const char *name = NULL;
	if (game_map && npc_index >= 0 && npc_index < 10) {
		name = game_map->npcs[npc_index].name;
	}
	if (name && name[0] != '\0') {
		snprintf(status_buf, sizeof(status_buf), "You approach %s.", name);
	} else {
		snprintf(status_buf, sizeof(status_buf), "You approach the NPC.");
	}
	update_status(status_buf);
}

static void render(const Map *map, const Player *player, int *cam_x,
	int *cam_y, int *out_view_w, int *out_view_h, const Dialog *dialog) {
	int w;
	int h;
	int map_x;
	int map_y;
	int map_w;
	int map_h;
	int side_x;
	int side_y;
	int side_w;
	int side_h;
	int stats_x;
	int stats_y;
	int stats_w;
	int stats_h;
	int inv_x;
	int inv_y;
	int inv_w;
	int inv_h;
	int msg1_y;
	int msg2_y;
	int view_w;
	int view_h;
	int draw_w;
	int draw_h;
	int pad_x;
	int pad_y;

	w = tb_width();
	h = tb_height();
	get_layout(w, h, &map_x, &map_y, &map_w, &map_h, &side_x, &side_y, &side_w, &side_h, &msg1_y, &msg2_y);

	tb_clear();
	if (w < MIN_W || h < MIN_H || map_w < 8 || map_h < 3) {
		tb_print(1, 1, COLOR_RED_256 | TB_BOLD, TB_DEFAULT, "Window too small. Resize to at least 40x12.");
		tb_present();
		*out_view_w = map_w;
		*out_view_h = map_h;
		return;
	}

	view_w = map_w - 2;
	view_h = map_h - 2;
	draw_w = view_w;
	draw_h = view_h;
	if (map->width < draw_w) {
		draw_w = map->width;
	}
	if (map->height < draw_h) {
		draw_h = map->height;
	}
	pad_x = view_w > draw_w ? (view_w - draw_w) / 2 : 0;
	pad_y = view_h > draw_h ? (view_h - draw_h) / 2 : 0;

	draw_border(map_x, map_y, map_w, map_h, COLOR_WHITE_256);
	update_camera(map, view_w, view_h, player, cam_x, cam_y);
	draw_map(map, map_x + 1 + pad_x, map_y + 1 + pad_y, draw_w, draw_h, player, *cam_x, *cam_y);

	stats_x = side_x;
	stats_y = side_y;
	stats_w = side_w;
	stats_h = 11;
	inv_x = side_x;
	inv_y = side_y + stats_h;
	inv_w = side_w;
	inv_h = side_h - stats_h;
	if (stats_w >= 12 && stats_h >= 9) {
		draw_border(stats_x, stats_y, stats_w, stats_h, COLOR_WHITE_256);
		draw_stats(stats_x + 2, stats_y + 1, player);
	}
	if (inv_w >= 12 && inv_h >= 7) {
		draw_border(inv_x, inv_y, inv_w, inv_h, COLOR_WHITE_256);
		draw_inventory(inv_x + 2, inv_y + 1, &player->inventory);
	}

	tb_print(2, msg1_y, COLOR_GREEN_256, TB_DEFAULT, status_msg);
	tb_print(2, msg2_y, COLOR_WHITE_256, TB_DEFAULT, "Move: arrows  Quit: q/ESC");

	if (dialog->open) {
		int box_w = map_w - 4;
		int box_h = 12;
		int box_x = map_x + 2;
		int box_y = map_y + map_h - box_h - 1;
		if (box_w > w - 2) {
			box_w = w - 2;
			box_x = 1;
		}
		if (box_h > h - 2) {
			box_h = h - 2;
			box_y = 1;
		}
		if (box_w < 20) {
			box_w = 20;
			box_x = map_x + 1;
		}
		if (box_y < map_y + 1) {
			box_y = map_y + 1;
		}
		for (int iy = 0; iy < box_h; iy++) {
			for (int ix = 0; ix < box_w; ix++) {
				tb_set_cell(box_x + ix, box_y + iy, ' ', COLOR_WHITE_256, 19);
			}
		}
		draw_border_bg(box_x, box_y, box_w, box_h, COLOR_WHITE_256, 19);
		{
			int input_y = box_y + box_h - 3;
			int footer_y = box_y + box_h - 2;
			int log_y = box_y + 1;
			int max_lines = input_y - log_y;
			int max_text = box_w - 4 - 5;
			int line = 0;

			if (max_text < 0) {
				max_text = 0;
			}
			int max_entries = max_lines / 2;
			int start = dialog->entry_count - max_entries;
			if (start < 0) {
				start = 0;
			}
			for (int i = start; i < dialog->entry_count && line + 1 <= max_lines; i++) {
				char prompt_buf[128];
				char response_buf[256];
				copy_truncated(prompt_buf, sizeof(prompt_buf), dialog->entries[i].prompt, max_text);
				copy_truncated(response_buf, sizeof(response_buf), dialog->entries[i].response, max_text);
				if (line < max_lines) {
				tb_printf(box_x + 2, log_y + line, COLOR_WHITE_256, 19, "You: %s", prompt_buf);
					line++;
				}
				if (line < max_lines) {
					tb_printf(box_x + 2, log_y + line, COLOR_GREEN_256, 19, "NPC: %s", response_buf);
					line++;
				}
			}

			tb_printf(box_x + 2, input_y, COLOR_WHITE_256, 19, "Say: %s", dialog->input);
			{
				int cursor_x = box_x + 2 + 5 + dialog->input_len;
				int cursor_y = input_y;
				if (cursor_x < box_x + box_w - 1) {
					tb_set_cell(cursor_x, cursor_y, '_', COLOR_WHITE_256 | TB_BOLD, 19);
				}
			}
			tb_print(box_x + 2, footer_y, COLOR_WHITE_256, 19, "Enter: send  ESC: close");
		}
	}

	tb_present();
	*out_view_w = view_w;
	*out_view_h = view_h;
}

static int clamp(int value, int min, int max) {
	if (value < min) {
		return min;
	}
	if (value > max) {
		return max;
	}
	return value;
}

int main(void) {
	Player player = {0};
	array(GameMap) maps;
	GameMap map1 = {0};
	GameMap *current_map = NULL;
	int running = 1;
	int view_w = 0;
	int view_h = 0;
	int cam_x = 0;
	int cam_y = 0;
	Dialog dialog = {0};

	player_init(&player);
	array_init(maps);
	map1 = make_map1();
	array_push(maps, map1);
	current_map = &maps.data[0];
	map_init(&current_map->map, current_map->data, current_map->len);

	if (tb_init() != TB_OK) {
		fprintf(stderr, "Failed to init termbox.\n");
		return 1;
	}

	tb_set_input_mode(TB_INPUT_ESC);
	tb_set_output_mode(TB_OUTPUT_256);
	update_status("You feel like you have a lot of potential.");
	while (running) {
		struct tb_event ev;

		render(&current_map->map, &player, &cam_x, &cam_y, &view_w, &view_h, &dialog);
		tb_poll_event(&ev);
		if (ev.type == TB_EVENT_KEY) {
			if (dialog.open) {
				if (ev.key == TB_KEY_ESC) {
					dialog_close(&dialog);
				} else if (ev.key == TB_KEY_ENTER) {
					dialog_submit(&dialog, current_map);
				} else if (ev.key == TB_KEY_BACKSPACE || ev.key == TB_KEY_BACKSPACE2) {
					dialog_backspace(&dialog);
				} else if (ev.ch) {
					dialog_append(&dialog, ev.ch);
				}
			} else {
				if (ev.key == TB_KEY_ESC || ev.ch == 'q') {
					running = 0;
				} else if (ev.key == TB_KEY_ARROW_UP) {
					int next_y = player.y - 1;
					u32 target = map_get(&current_map->map, player.x, next_y);
					int npc_index = npc_index_from_tile(target);
					if (target == 'N' || npc_index >= 0) {
						dialog_open(&dialog, npc_index);
						update_npc_status(current_map, npc_index);
					} else if (map_is_walkable(&current_map->map, player.x, next_y)) {
						player.y = next_y;
					}
				} else if (ev.key == TB_KEY_ARROW_DOWN) {
					int next_y = player.y + 1;
					u32 target = map_get(&current_map->map, player.x, next_y);
					int npc_index = npc_index_from_tile(target);
					if (target == 'N' || npc_index >= 0) {
						dialog_open(&dialog, npc_index);
						update_npc_status(current_map, npc_index);
					} else if (map_is_walkable(&current_map->map, player.x, next_y)) {
						player.y = next_y;
					}
				} else if (ev.key == TB_KEY_ARROW_LEFT) {
					int next_x = player.x - 1;
					u32 target = map_get(&current_map->map, next_x, player.y);
					int npc_index = npc_index_from_tile(target);
					if (target == 'N' || npc_index >= 0) {
						dialog_open(&dialog, npc_index);
						update_npc_status(current_map, npc_index);
					} else if (map_is_walkable(&current_map->map, next_x, player.y)) {
						player.x = next_x;
					}
				} else if (ev.key == TB_KEY_ARROW_RIGHT) {
					int next_x = player.x + 1;
					u32 target = map_get(&current_map->map, next_x, player.y);
					int npc_index = npc_index_from_tile(target);
					if (target == 'N' || npc_index >= 0) {
						dialog_open(&dialog, npc_index);
						update_npc_status(current_map, npc_index);
					} else if (map_is_walkable(&current_map->map, next_x, player.y)) {
						player.x = next_x;
					}
				}
				if (map_get(&current_map->map, player.x, player.y) == '$') {
					player.gold += 10;
					map_set(&current_map->map, player.x, player.y, MAP_FLOOR_CH);
					update_status("You pick up 10 gold.");
				}
			}
			player.x = clamp(player.x, 0, current_map->map.width > 1 ? current_map->map.width - 1 : 0);
			player.y = clamp(player.y, 0, current_map->map.height > 1 ? current_map->map.height - 1 : 0);
		} else if (ev.type == TB_EVENT_RESIZE) {
			player.x = clamp(player.x, 0, current_map->map.width > 1 ? current_map->map.width - 1 : 0);
			player.y = clamp(player.y, 0, current_map->map.height > 1 ? current_map->map.height - 1 : 0);
		}
	}

	player_free(&player);
	for (size_t i = 0; i < maps.length; i++) {
		map_free(&maps.data[i].map);
	}
	array_free(maps);
	tb_shutdown();
	return 0;
}