Move tilesets inside res/maps, add error messages for map assets loading

The resources have been moved as a subdirectory of maps because
Rust-Embed cannot resolve relative path when resources are embedded in
the binary.

6 files changed, 24 insertions, 8 deletions

diff --git a/res/maps/demo.tmx b/res/maps/demo.tmx
index 0b8a539..cf10ad2 100644
--- a/res/maps/demo.tmx
+++ b/res/maps/demo.tmx
@@ -1,16 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <map version="1.0" tiledversion="1.0.3" orientation="orthogonal" renderorder="right-down" width="12" height="12" tilewidth="32" tileheight="32" nextobjectid="1">
  <tileset firstgid="1" name="ground" tilewidth="32" tileheight="32" tilecount="441" columns="21">
-  <image source="../tilesets/ground.png" width="672" height="701"/>
+  <image source="tilesets/ground.png" width="672" height="701"/>
  </tileset>
  <tileset firstgid="442" name="cliff" tilewidth="32" tileheight="32" tilecount="240" columns="15">
-  <image source="../tilesets/cliff.png" width="503" height="518"/>
+  <image source="tilesets/cliff.png" width="503" height="518"/>
  </tileset>
  <tileset firstgid="682" name="objects" tilewidth="32" tileheight="32" tilecount="84" columns="14">
-  <image source="../tilesets/objects.png" width="477" height="219"/>
+  <image source="tilesets/objects.png" width="477" height="219"/>
  </tileset>
  <tileset firstgid="766" name="water" tilewidth="32" tileheight="32" tilecount="81" columns="9">
-  <image source="../tilesets/water.png" width="319" height="293"/>
+  <image source="tilesets/water.png" width="319" height="293"/>
  </tileset>
  <layer name="ground" width="12" height="12">
   <data encoding="base64" compression="zlib">
diff --git a/res/tilesets/cliff.png b/res/maps/tilesets/cliff.png
index 6ab54c2..6ab54c2 100644
--- a/res/tilesets/cliff.png
+++ b/res/maps/tilesets/cliff.png
diff --git a/res/tilesets/ground.png b/res/maps/tilesets/ground.png
index 80ccd33..80ccd33 100644
--- a/res/tilesets/ground.png
+++ b/res/maps/tilesets/ground.png
diff --git a/res/tilesets/objects.png b/res/maps/tilesets/objects.png
index 599c476..599c476 100644
--- a/res/tilesets/objects.png
+++ b/res/maps/tilesets/objects.png
diff --git a/res/tilesets/water.png b/res/maps/tilesets/water.png
index e5c5c73..e5c5c73 100644
--- a/res/tilesets/water.png
+++ b/res/maps/tilesets/water.png
diff --git a/src/graphics.rs b/src/graphics.rs
index 9af03f4..68dfa65 100644
--- a/src/graphics.rs
+++ b/src/graphics.rs
@@ -93,7 +93,12 @@ impl Graphics {
 						continue;
 					}
 
-					let tmx_tileset = state.map.get_tileset_by_gid(tmx_tile).unwrap();
+					let tmx_tileset = match state.map.get_tileset_by_gid(tmx_tile) {
+						Some(tileset) => tileset,
+						None => {
+							panic!("Failed to get tileset with get_tileset_by_gid");
+						}
+					};
 
 					// load tileset if not loaded yet
 					// TODO: load in a separate thread?
@@ -103,8 +108,19 @@ impl Graphics {
 
 						// load tileset image
 						let tmx_image = &tmx_tileset.images[0];
-						let asset = MapAssets::get(&tmx_image.source).unwrap();
-						let image = Image::from_memory(asset.as_ref()).unwrap();
+						let asset = match MapAssets::get(&tmx_image.source) {
+							Some(asset) => asset,
+							None => {
+								panic!("Failed to get asset: {}", &tmx_image.source);
+							}
+						};
+
+						let image = match Image::from_memory(asset.as_ref()) {
+							Some(image) => image,
+							None => {
+								panic!("Failed load image from asset");
+							}
+						};
 
 						// load tiles (textures)
 						let tileset_width = tmx_image.width as u32 / tmx_tileset.tile_width;
@@ -135,7 +151,7 @@ impl Graphics {
 
 					// draw!
 					// TODO: check map render order
-					let texture = self.textures.get(&tmx_tile).unwrap();
+					let texture = &self.textures.get(&tmx_tile).unwrap();
 					let mut tile_rect = RectangleShape::with_texture(texture);
 
 					tile_rect.set_size(Vector2f {