created ShadeMyCanvas (smc)

www/js/smc/smc.js.bak

@@ -0,0 +1,37 @@
+import { SmcErr } from "./errors.js";
+import { SmcBuilder } from "./builder.js";
+
+export { SmcErr };
+
+// XXX: TODO: merge SmcBuilder into smc
+class smc {
+  #canvas;
+  #builderDelegate = _ => { };
+
+  constructor(canvas) {
+    this.#canvas = canvas;
+  }
+
+  build(delegate) {
+    this.#builderDelegate = delegate;
+    return this;
+  }
+
+  onError(delegate) {
+    this.#errorDelegate = delegate;
+    return this;
+  }
+
+  run() {
+    this.#canvas = canvas;
+    const gl = this.#canvas.getContext("webgl");
+    if (gl == null) {
+      this.#raiseError(
+        SmcErr.UNSUPPORTED,
+        Error("Unable to initialize WebGL. Your browser or machine may not support it."),
+      );
+    }
+    const builder = this.#builderDelegate(new SmcBuilder(gl, this.#raiseError))
+    builder.render()
+  }
+}