/* SPDX-License-Identifier: MIT
 * Copyright (c) 2021 KikooDX
 * This file is part of
 * [Painfull Success CG](https://git.sr.ht/~kikoodx/painfull-success-cg),
 * which is MIT licensed. The MIT license requires this copyright notice to be
 * included in all copies and substantial portions of the software. */
#include <gint/display.h>
#include "lazyint.h"
#include "level.h"
#include "tiles.h"
#include "conf.h"
#include "vec2.h"

void level_draw(Level level) {
	/* Pixel position (where we draw). */
	u16 x = DRAW_OFFSET_X;
	u16 y = DRAW_OFFSET_Y;
	/* Cursor position. */
	u8 cx = 0;
	while (cx < LEVEL_WIDTH) {
		u8 cy = 0;
		while (cy < LEVEL_HEIGHT) {
			const tile_t tile = level.content[cy * LEVEL_WIDTH + cx];
			const u32 color = tile_color(tile);
			drect(x, y, x + TILE_SIZE - 1, y + TILE_SIZE - 1, color);
			y += TILE_SIZE;
			cy += 1;
		}
		y = DRAW_OFFSET_Y;
		x += TILE_SIZE;
		cx += 1;
	}
}

tile_t level_get_tile_at_px(Level level, Vec2 pos) {
	/* Out of bounds check. */
	if (pos.x < 0 || pos.y < 0)
		return OUT_OF_BOUNDS;
	/* Convert to unsigned integers. */
	u8 x = pos.x / TILE_SIZE;
	u8 y = pos.y / TILE_SIZE;
	/* Out of bounds check. */
	if (pos.x >= LEVEL_WIDTH * TILE_SIZE || pos.y >= LEVEL_HEIGHT * TILE_SIZE)
		return OUT_OF_BOUNDS;
	/* If everything is OK, get the tile and return it. */
	return level.content[x + y * LEVEL_WIDTH];
}

void level_set_tile_at_px(Level *level, Vec2 pos, tile_t tile) {
	/* Convert to unsigned integers. */
	u8 x = pos.x / TILE_SIZE;
	u8 y = pos.y / TILE_SIZE;
	level->content[x + y * LEVEL_WIDTH] = tile;
}