1 files changed, 43 insertions, 0 deletions
diff --git a/examples/workbench-example-app/src/main/scala/example/ScalaJSExample.scala b/examples/workbench-example-app/src/main/scala/example/ScalaJSExample.scala
new file mode 100644
index 0000000..e7e5326
--- /dev/null
+++ b/examples/workbench-example-app/src/main/scala/example/ScalaJSExample.scala
@@ -0,0 +1,43 @@
+package example
+import scala.scalajs.js.annotation.JSExport
+import org.scalajs.dom
+import scala.util.Random
+
+case class Point(x: Int, y: Int){
+  def +(p: Point) = Point(x + p.x, y + p.y)
+  def /(d: Int) = Point(x / d, y / d)
+}
+
+@JSExport
+object ScalaJSExample {
+  @JSExport
+  def main(canvas: dom.HTMLCanvasElement): Unit = {
+    val ctx = canvas.getContext("2d")
+                    .asInstanceOf[dom.CanvasRenderingContext2D]
+
+    var count = 0
+    var p = Point(0, 0)
+    val corners = Seq(Point(255, 255), Point(0, 255), Point(128, 0))
+
+    def clear() = {
+      ctx.fillStyle = "black"
+      ctx.fillRect(0, 0, 255, 255)
+    }
+
+    def run = for (i <- 0 until 10){
+      if (count % 3000 == 0) clear()
+      count += 1
+      p = (p + corners(Random.nextInt(3))) / 2
+
+      val height = 512.0 / (255 + p.y)
+      val r = (p.x * height).toInt
+      val g = ((255-p.x) * height).toInt
+      val b = p.y
+      ctx.fillStyle = s"rgb($g, $r, $b)"
+
+      ctx.fillRect(p.x, p.y, 1, 1)
+    }
+
+    dom.setInterval(() => run, 50)
+  }
+}