Add render to texture spritemap visual test (#485)

examples/tests/rtt-spritemap.ts

@@ -0,0 +1,113 @@
+/*
+ * If not stated otherwise in this file or this component's LICENSE file the
+ * following copyright and licenses apply:
+ *
+ * Copyright 2023 Comcast Cable Communications Management, LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import type { ExampleSettings } from '../common/ExampleSettings.js';
+import spritemap from '../assets/spritemap.png';
+
+export async function automation(settings: ExampleSettings) {
+  // Snapshot single page
+  await test(settings);
+  await settings.snapshot();
+}
+
+export default async function test({ renderer, testRoot }: ExampleSettings) {
+  const FONT_SIZE = 45;
+
+  renderer.createTextNode({
+    text: `Render to Texture Spritemap Test`,
+    fontSize: FONT_SIZE,
+    offsetY: -5,
+    parent: testRoot,
+  });
+
+  const spriteMapTexture = renderer.createTexture('ImageTexture', {
+    src: spritemap,
+  });
+
+  spriteMapTexture.on('load', (dimensions) => {
+    console.log('Spritemap Texture loaded', dimensions);
+  });
+
+  const rttNode = renderer.createNode({
+    x: 200,
+    y: 200,
+    width: 300,
+    height: 300,
+    parent: testRoot,
+    rtt: true,
+    clipping: true,
+    zIndex: 5,
+    colorTop: 0xfff00fff,
+    colorBottom: 0x00ffffff,
+  });
+
+  renderer.createNode({
+    x: 0,
+    y: 0,
+    width: 300,
+    height: 300,
+    parent: rttNode,
+    color: 0xff0000ff,
+  });
+
+  renderer.createTextNode({
+    x: 0,
+    y: 0,
+    text: 'Render to texture',
+    parent: rttNode,
+    fontSize: 48,
+    color: 0xffffffff,
+    fontFamily: 'Ubuntu',
+  });
+
+  function execTest(
+    positionX: number,
+    sourceX: number,
+    title: string,
+  ): Promise<boolean> {
+    const character = renderer.createTexture('SubTexture', {
+      texture: spriteMapTexture,
+      x: sourceX,
+      y: 0,
+      width: 100,
+      height: 150,
+    });
+
+    renderer.createNode({
+      x: positionX,
+      y: 80,
+      width: 100,
+      height: 150,
+      texture: character,
+      parent: rttNode,
+    });
+
+    return new Promise((resolve, reject) => {
+      renderer.once('idle', () => {
+        resolve(true);
+      });
+    });
+  }
+
+  await execTest(0, 0, 'Character 1');
+  await execTest(60, 100, 'Character 2');
+  await execTest(120, 200, 'Character 3');
+  await execTest(180, 300, 'Character 4');
+  await execTest(240, 400, 'Character 5');
+}