#include "map.h"
#include "sprite.h"
#include "standard.h"

void init_map(Map* map) {
	const Sprite* floor, * bricks;
	const Bitmap* fbmp, * bbmp;
	Bitmap bitmap;
	int i, x, y;

	bitmap.pixels = map->pixels;
	bitmap.w = mbmp_w;
	bitmap.h = mbmp_h;

	floor  = get_sprite(sprite_floor_tile);
	bricks = get_sprite(sprite_bricks);
	fbmp = get_bitmap(floor->bitmap);
	bbmp = get_bitmap(bricks->bitmap);

	for (i = 0; i < mbmp_w * mbmp_h; i++) {
		bitmap.pixels[i] = make_black();
	}

	for (x = 1; x < map_width - 1; x++) {
		for (y = 1; y < map_height - 1; y++) {
			blit(
				&bitmap,
				fbmp,
				map_tile_size * x,
				map_tile_size * y,
				&floor->rect
			);
		}
	}

	for (x = 0; x < map_width; x++) {
		blit(
			&bitmap,
			bbmp,
			map_tile_size * x,
			0,
			&bricks->rect
		);
		blit(
			&bitmap,
			bbmp,
			map_tile_size * x,
			(map_height - 1) * map_tile_size,
			&bricks->rect
		);
	}

	for (y = 0; y < map_height; y++) {
		blit(
			&bitmap,
			bbmp,
			0,
			map_tile_size * y,
			&bricks->rect
		);
		blit(
			&bitmap,
			bbmp,
			(map_width - 1) * map_tile_size,
			map_tile_size * y,
			&bricks->rect
		);
	}

	for (i = 0; i < 20; i++) {
		x = rand_range(0, map_width - 1) * map_tile_size;
		y = rand_range(0, map_height - 1) * map_tile_size;
		blit(
			&bitmap,
			bbmp,
			x,
			y,
			&bricks->rect
		);
	}
}

void render_map(Map* map, int cx, int cy) {
	Bitmap bitmap;
	Rectangle rect;

	bitmap.pixels = map->pixels;
	bitmap.w = mbmp_w;
	bitmap.h = mbmp_h;
	rect.x = 0;
	rect.y = 0;
	rect.w = bitmap.w;
	rect.h = bitmap.h;
	render_bitmap(&bitmap, -cx >> fbits, -cy >> fbits, &rect);
}