Improve API

src/graphics/rendering/renderer.ts

@@ -0,0 +1,14 @@
+import { vec2 } from 'gl-matrix';
+import { Drawable } from '../../drawables/drawable';
+
+export interface Renderer {
+  setViewArea(topLeft: vec2, size: vec2): void;
+
+  addDrawable(drawable: Drawable): void;
+  renderDrawables(): void;
+
+  autoscaleQuality(deltaTime: DOMHighResTimeStamp): void;
+
+  readonly canvasSize: vec2;
+  setCursorPosition(position: vec2): void;
+}