Mouse buttons support

src/core/input.ts

@@ -9,6 +9,8 @@ export abstract class Input {
    * Pointer position in screen space.
    */
   public static readonly pointer: Vector2 = new Vector2();
+  public static pointerLeftPressed: boolean = false;
+  public static pointerRightPressed: boolean = false;
 
   private static keyState: Map<string, boolean> = new Map();
   private static previousKeyState: Map<string, boolean> = new Map();
@@ -121,5 +123,15 @@ export abstract class Input {
         ((y / canvas.clientHeight) * canvas.height) | 0,
       );
     });
+
+    canvas.addEventListener('mousedown', (e) => {
+      if (e.button === 0) Input.pointerLeftPressed = true;
+      if (e.button === 2) Input.pointerRightPressed = true;
+    });
+
+    canvas.addEventListener('mouseup', (e) => {
+      if (e.button === 0) Input.pointerLeftPressed = false;
+      if (e.button === 2) Input.pointerRightPressed = false;
+    });
   }
 }

src/gfx/screen.ts

@@ -444,6 +444,8 @@ export class Screen {
     canvas.width = width;
     canvas.height = height;
 
+    canvas.addEventListener('contextmenu', e => e.preventDefault());
+
     const ctx = canvas.getContext('2d');
     if (!ctx) {
       throw new Error('An error occured while creating canvas context');

src/ponczek.ts

@@ -4,7 +4,6 @@
  * TODO: Camera boundaries
  * TODO: Camera shake
  * TODO: Add loading map from texture in tilemap test scene
- * TODO: Mouse buttons support
  * TODO: Add support for triangle rendering
  * TODO: Grid view scrolling
  * TODO: Data structure for defining color palettes