initial implementation of arkanoid.ts

src/types.ts

@@ -0,0 +1,54 @@
+export interface Velocity {
+  x: number;
+  y: number;
+}
+
+export class Position {
+  constructor(public x: number, public y: number) {}
+
+  clone(): Position {
+    return new Position(this.x, this.y);
+  }
+
+  moveX(x: number): Position {
+    this.x = x;
+    return this;
+  }
+
+  moveY(y: number): Position {
+    this.y = y;
+    return this;
+  }
+
+  move(x: number, y: number): Position {
+    this.x = x;
+    this.y = y;
+    return this;
+  }
+
+  addX(x: number): Position {
+    return this.add(x, 0);
+  }
+
+  addY(y: number): Position {
+    return this.add(0, y);
+  }
+
+  add(x: number, y: number): Position {
+    this.x += x;
+    this.y += y;
+    return this;
+  }
+}
+
+export interface Size {
+  width: number;
+  height: number;
+}
+
+export interface Element {
+  size: Size;
+  pos: Position;
+  instance: HTMLElement;
+  update(): void;
+}