MPO: add example

jme3-examples/src/main/java/jme3test/material/TestMatParamOverride.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2009-2016 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package jme3test.material;
+
+import com.jme3.app.SimpleApplication;
+import com.jme3.input.KeyInput;
+import com.jme3.input.controls.ActionListener;
+import com.jme3.input.controls.KeyTrigger;
+import com.jme3.material.MatParamOverride;
+import com.jme3.material.Material;
+import com.jme3.math.ColorRGBA;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.shape.Box;
+import com.jme3.shader.VarType;
+
+/**
+ * Test if {@link MatParamOverride}s are working correctly.
+ *
+ * @author Kirill Vainer
+ */
+public class TestMatParamOverride extends SimpleApplication {
+
+    private Box box = new Box(1, 1, 1);
+    private MatParamOverride override = new MatParamOverride(VarType.Vector4, "Color", ColorRGBA.Yellow);
+
+    public static void main(String[] args) {
+        TestMatParamOverride app = new TestMatParamOverride();
+        app.start();
+    }
+
+    private void createBox(float location, ColorRGBA color) {
+        Geometry geom = new Geometry("Box", box);
+        Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
+        mat.setColor("Color", color);
+        geom.setMaterial(mat);
+        geom.move(location, 0, 0);
+        rootNode.attachChild(geom);
+    }
+
+    @Override
+    public void simpleInitApp() {
+        inputManager.setCursorVisible(true);
+
+        createBox(-3, ColorRGBA.Red);
+        createBox(0, ColorRGBA.Green);
+        createBox(3, ColorRGBA.Blue);
+
+        inputManager.addMapping("override", new KeyTrigger(KeyInput.KEY_SPACE));
+        inputManager.addListener(new ActionListener() {
+            @Override
+            public void onAction(String name, boolean isPressed, float tpf) {
+                if (name.equals("override") && isPressed) {
+                    if (!rootNode.getLocalOverrides().isEmpty()) {
+                        rootNode.clearMatParamOverrides();
+                    } else {
+                        rootNode.addMatParamOverride(override);
+                    }
+                    System.out.println(rootNode.getLocalOverrides());
+                }
+            }
+        }, "override");
+    }
+}