Implement basic ray tracing

1 files changed, 31 insertions, 0 deletions

diff --git a/src/Geometry.ts b/src/Geometry.ts
new file mode 100644
index 0000000..4fcc11b
--- /dev/null
+++ b/src/Geometry.ts
@@ -0,0 +1,31 @@
+import {Colour} from './Colour';
+import {Material} from './Material';
+import {Vector} from './Vector';
+
+export class Sphere {
+  constructor(
+    readonly centerPoint: Vector,
+    readonly radius: number,
+    readonly material: Material
+  ) {}
+}
+
+export class Plane {
+  constructor(
+    readonly yPos: number,
+    readonly width: number, // How far the plane extends into x/-x from 0
+    readonly zStartPos: number,
+    readonly zEndPos: number,
+    readonly checkerboardScale: number
+  ) {}
+
+  getMaterialAtPoint(x: number, z: number): Material {
+    let colour: Colour;
+    if ((Math.round(this.checkerboardScale * x) + Math.round(this.checkerboardScale * z)) & 1) {
+      colour = new Colour(15, 15, 15);
+    } else {
+      colour = new Colour(200, 200, 200);
+    }
+    return new Material(colour, 1, 0, 0, 0);
+  }
+}