Map rendering and camera movement.

1 files changed, 95 insertions, 0 deletions

diff --git a/map.c b/map.c
new file mode 100644
index 0000000..2b10abd
--- /dev/null
+++ b/map.c
@@ -0,0 +1,95 @@
+#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);
+}