WIP

frontend/src/scripts/physics/containers/bounding-box-base.ts

@@ -0,0 +1,61 @@
+import { vec2 } from 'gl-matrix';
+import { IPrimitive } from '../../drawing/drawables/primitives/i-primitive';
+
+export abstract class BoundingBoxBase {
+  constructor(
+    public readonly value: IPrimitive,
+    protected _xMin: number,
+    protected _xMax: number,
+    protected _yMin: number,
+    protected _yMax: number
+  ) {}
+
+  public get 0(): number {
+    return this._xMin;
+  }
+
+  public get 1(): number {
+    return this._xMax;
+  }
+
+  public get 2(): number {
+    return this._yMin;
+  }
+
+  public get 3(): number {
+    return this._yMax;
+  }
+
+  public get xMin(): number {
+    return this._xMin;
+  }
+
+  public get xMax(): number {
+    return this._xMax;
+  }
+
+  public get yMin(): number {
+    return this._yMin;
+  }
+
+  public get yMax(): number {
+    return this._yMax;
+  }
+
+  public get topLeft(): vec2 {
+    return vec2.fromValues(this._xMin, this._yMax);
+  }
+
+  public get size(): vec2 {
+    return vec2.fromValues(this._xMax - this._xMin, this._yMax - this._yMin);
+  }
+
+  public intersects(other: BoundingBoxBase): boolean {
+    return (
+      this._xMin < other._xMax &&
+      this._xMax > other._xMin &&
+      this._yMin < other._yMax &&
+      this._yMax > other._yMin
+    );
+  }
+}