basic tile drawing

src/main.rs

@@ -41,13 +41,18 @@ enum SimState {
 	Stepping,
 }
 
-fn load_textures_from(folder: &str, rl: &mut RaylibHandle,  thread:&RaylibThread,textures:&mut HashMap<String,Texture2D>){
+fn load_textures_from(
+	folder: &str,
+	rl: &mut RaylibHandle,
+	thread: &RaylibThread,
+	textures: &mut HashMap<String, Texture2D>,
+) {
 	for d in read_dir(folder).unwrap().flatten() {
 		let path = d.path();
 		if path.is_file() {
 			let name = path.file_stem().unwrap().to_string_lossy();
 			let texture = rl
-				.load_texture(&thread, &format!("{folder}/{name}.png"))
+				.load_texture(thread, &format!("{folder}/{name}.png"))
 				.unwrap();
 			textures.insert(name.to_string(), texture);
 		}
@@ -233,8 +238,8 @@ impl Game {
 				border,
 			);
 		};
-		tool_button((0, -1), "", Tool::None);
-		tool_button((1, -1), "eraser", Tool::SetTile(tile_to_char(' ')));
+		tool_button((0, -1), "eraser", Tool::SetTile(tile_to_char(' ')));
+		tool_button((1, -1), "", Tool::None);
 
 		tool_button((0, 0), "block", Tool::SetTile(tile_to_char('#')));
 		tool_button((0, 1), "bag_off", Tool::SetTile(tile_to_char('B')));
@@ -251,5 +256,27 @@ impl Game {
 			Tool::SetTile(tile_to_char('|')),
 		);
 		tool_button((1, 2), "wire_cross_off", Tool::SetTile(tile_to_char('+')));
+
+		let mouse_pos = d.get_mouse_position();
+		if self.sim_state == SimState::Editing && mouse_pos.y < footer_top {
+			let tile_pos = (mouse_pos - self.view_offset) / (16 << self.zoom) as f32;
+			let tile_pos = Vector2::new(tile_pos.x.floor(), tile_pos.y.floor());
+
+			let tile_screen_pos = tile_pos * (16 << self.zoom) as f32 + self.view_offset;
+
+			if let Tool::SetTile(tile) = self.active_tool {
+				d.draw_texture_ex(
+					textures.get("selection").unwrap(),
+					tile_screen_pos,
+					0.,
+					(1 << self.zoom) as f32,
+					Color::new(255, 255, 255, 150),
+				);
+
+				if d.is_mouse_button_down(MouseButton::MOUSE_BUTTON_LEFT) {
+					self.source_board.set(tile_pos.into(), tile)
+				}
+			}
+		}
 	}
 }

src/marble_engine/board.rs

@@ -18,6 +18,15 @@ impl From<(usize, usize)> for Pos {
 	}
 }
 
+impl From<Vector2> for Pos {
+	fn from(vec: Vector2) -> Self {
+		Self {
+			x: vec.x as isize,
+			y: vec.y as isize,
+		}
+	}
+}
+
 #[derive(Debug, Clone)]
 pub struct Board {
 	rows: Vec<Vec<Tile>>,
@@ -101,7 +110,9 @@ impl Board {
 				if let Some(tile) = self.get((x, y).into()) {
 					let px = x as i32 * tile_size + offset.x as i32 + tile_size / 2;
 					let py = y as i32 * tile_size + offset.y as i32 + tile_size / 2;
-					let texture = textures.get(&tile.texture()).unwrap_or_else(||textures.get("missing").unwrap());
+					let texture = textures
+						.get(&tile.texture())
+						.unwrap_or_else(|| textures.get("missing").unwrap());
 					d.draw_texture_ex(
 						texture,
 						Vector2::new((px - tile_size / 2) as f32, (py - tile_size / 2) as f32),