drawtileex

2 files changed, 83 insertions, 1 deletions

diff --git a/inc/lzy.h b/inc/lzy.h
index b78ddb1..fedc82f 100644
--- a/inc/lzy.h
+++ b/inc/lzy.h
@@ -93,6 +93,8 @@ int LZY_DrawLine(int x0, int y0, int x1, int y1);
 int LZY_DrawRect(int x, int y, unsigned int w, unsigned int h);
 int LZY_DrawFillRect(int x, int y, unsigned int w, unsigned int h);
 int LZY_DrawTile(unsigned int id, int x, int y);
+int LZY_DrawTileEx(unsigned int id, int x, int y, unsigned int w,
+                   unsigned int h);
 int LZY_DrawChar(unsigned char chr, int x, int y);
 int LZY_DrawText(const char *text, int x, int y);
 LZY_Music *LZY_MusicLoad(const char *path);
@@ -311,6 +313,41 @@ int LZY_DrawTile(unsigned int id, int x, int y) {
 #endif
 }
 
+int LZY_DrawTileEx(unsigned int id, int x, int y, unsigned int w,
+                   unsigned int h) {
+#ifndef LZY_GINT_TILESET
+	LZY_UNUSED(id);
+	LZY_UNUSED(x);
+	LZY_UNUSED(y);
+	LZY_UNUSED(w);
+	LZY_UNUSED(h);
+	return -1;
+#else
+	extern bopti_image_t LZY_GINT_TILESET;
+	int ix, iy;
+
+	if (w * h == 0)
+		return -1;
+
+	x += draw_off_x;
+	y += draw_off_y;
+
+	ix = id % tset_width;
+	iy = id / tset_width;
+
+	if (ix >= (int)tset_width || ix + w - 1 >= tset_width ||
+	    iy >= (int)tset_height || iy + h - 1 >= tset_height)
+		return -1;
+
+	ix *= LZY_TILE_SIZE;
+	iy *= LZY_TILE_SIZE;
+	dsubimage(x, y, &LZY_GINT_TILESET, ix, iy, w * LZY_TILE_SIZE,
+	          h * LZY_TILE_SIZE, DIMAGE_NONE);
+
+	return 0;
+#endif
+}
+
 int LZY_DrawChar(unsigned char chr, int x, int y) {
 #ifndef LZY_GINT_FONT
 	LZY_UNUSED(chr);
@@ -776,6 +813,48 @@ int LZY_DrawTile(unsigned int id, int x, int y) {
 	return 0;
 }
 
+int LZY_DrawTileEx(unsigned int id, int x, int y, unsigned int w,
+                   unsigned int h) {
+	SDL_Rect src, dst;
+
+	if (w * h == 0) {
+		error = "tile size can't be 0";
+		return -1;
+	}
+
+	if (id >= (unsigned int)(tset_width * tset_height)) {
+		error = "id exceeds boundaries";
+		return -1;
+	}
+
+	src.x = id % tset_width;
+	src.y = id / tset_width;
+
+	if (src.x >= tset_width || src.x + w - 1 >= (unsigned int)tset_width ||
+	    src.y >= tset_height ||
+	    src.y + h - 1 >= (unsigned int)tset_height) {
+		error = "tile is not in tileset";
+		return -1;
+	}
+
+	src.x *= LZY_TILE_SIZE;
+	src.y *= LZY_TILE_SIZE;
+	src.w = w * LZY_TILE_SIZE;
+	src.h = h * LZY_TILE_SIZE;
+
+	dst.x = x;
+	dst.y = y;
+	dst.w = w * LZY_TILE_SIZE;
+	dst.h = h * LZY_TILE_SIZE;
+
+	if (SDL_RenderCopy(renderer, tset, &src, &dst) < 0) {
+		error = SDL_GetError();
+		return -1;
+	}
+
+	return 0;
+}
+
 int LZY_DrawChar(unsigned char chr, int x, int y) {
 	const unsigned int id = (unsigned int)chr - LZY_FIRST_CHR;
 	SDL_Rect src, dst;
diff --git a/src/main.c b/src/main.c
index 8286b7f..584e725 100644
--- a/src/main.c
+++ b/src/main.c
@@ -46,7 +46,10 @@ int main(int argc, const char **argv) {
 			LZY_DrawLine(x, y, 0, 0);
 
 			/* draw player */
-			LZY_DrawTile(1, x, y);
+			if (LZY_DrawTileEx(1, x, y, 3, 2))
+				LZY_Log(LZY_GetError());
+			if (LZY_DrawTile(1, x, y))
+				LZY_Log(LZY_GetError());
 		}
 		LZY_DrawEnd();
 	}