1package com.jme3.util;
2
3import com.jme3.asset.AssetManager;
4import com.jme3.audio.AudioBuffer;
5import com.jme3.audio.AudioData;
6import com.jme3.material.Material;
7import com.jme3.math.ColorRGBA;
8import com.jme3.scene.Geometry;
9import com.jme3.scene.Spatial;
10import com.jme3.scene.shape.Box;
11import com.jme3.texture.Image;
12import com.jme3.texture.Image.Format;
13import java.nio.ByteBuffer;
14
15public class PlaceholderAssets {
16
17    /**
18     * Checkerboard of white and red squares
19     */
20    private static final byte[] imageData = {
21        (byte)0xFF, (byte)0xFF, (byte)0xFF,
22        (byte)0xFF, (byte)0x00, (byte)0x00,
23        (byte)0xFF, (byte)0xFF, (byte)0xFF,
24        (byte)0xFF, (byte)0x00, (byte)0x00,
25
26        (byte)0xFF, (byte)0x00, (byte)0x00,
27        (byte)0xFF, (byte)0xFF, (byte)0xFF,
28        (byte)0xFF, (byte)0x00, (byte)0x00,
29        (byte)0xFF, (byte)0xFF, (byte)0xFF,
30
31        (byte)0xFF, (byte)0xFF, (byte)0xFF,
32        (byte)0xFF, (byte)0x00, (byte)0x00,
33        (byte)0xFF, (byte)0xFF, (byte)0xFF,
34        (byte)0xFF, (byte)0x00, (byte)0x00,
35
36        (byte)0xFF, (byte)0x00, (byte)0x00,
37        (byte)0xFF, (byte)0xFF, (byte)0xFF,
38        (byte)0xFF, (byte)0x00, (byte)0x00,
39        (byte)0xFF, (byte)0xFF, (byte)0xFF,
40    };
41
42    public static Image getPlaceholderImage(){
43        ByteBuffer tempData = BufferUtils.createByteBuffer(3 * 4 * 4);
44        tempData.put(imageData).flip();
45        return new Image(Format.RGB8, 4, 4, tempData);
46    }
47
48    public static Material getPlaceholderMaterial(AssetManager assetManager){
49        Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
50        mat.setColor("Color", ColorRGBA.Red);
51        return mat;
52    }
53
54    public static Spatial getPlaceholderModel(AssetManager assetManager){
55        // What should be the size? Nobody knows
56        // the user's expected scale...
57        Box box = new Box(1, 1, 1);
58        Geometry geom = new Geometry("placeholder", box);
59        geom.setMaterial(getPlaceholderMaterial(assetManager));
60        return geom;
61    }
62
63    public static AudioData getPlaceholderAudio(){
64        AudioBuffer audioBuf = new AudioBuffer();
65        audioBuf.setupFormat(1, 8, 44100);
66        ByteBuffer bb = BufferUtils.createByteBuffer(1);
67        bb.put((byte)0).flip();
68        audioBuf.updateData(bb);
69        return audioBuf;
70    }
71
72}
73