tests/gdx-tests/src/com/badlogic/gdx/tests/g3d/BaseG3dTest.java

   1 package com.badlogic.gdx.tests.g3d;
   2
   3 import com.badlogic.gdx.Gdx;
   4 import com.badlogic.gdx.assets.AssetManager;
   5 import com.badlogic.gdx.graphics.Color;
   6 import com.badlogic.gdx.graphics.GL10;
   7 import com.badlogic.gdx.graphics.PerspectiveCamera;
   8 import com.badlogic.gdx.graphics.VertexAttribute;
   9 import com.badlogic.gdx.graphics.VertexAttributes;
  10 import com.badlogic.gdx.graphics.VertexAttributes.Usage;
  11 import com.badlogic.gdx.graphics.g3d.Material;
  12 import com.badlogic.gdx.graphics.g3d.Model;
  13 import com.badlogic.gdx.graphics.g3d.ModelBatch;
  14 import com.badlogic.gdx.graphics.g3d.ModelInstance;
  15 import com.badlogic.gdx.graphics.g3d.utils.CameraInputController;
  16 import com.badlogic.gdx.graphics.g3d.utils.MeshPartBuilder;
  17 import com.badlogic.gdx.graphics.g3d.utils.ModelBuilder;
  18 import com.badlogic.gdx.graphics.glutils.ShaderProgram;
  19 import com.badlogic.gdx.tests.utils.GdxTest;
  20 import com.badlogic.gdx.utils.Array;
  21
  22 public abstract class BaseG3dTest extends GdxTest {
  23         public AssetManager assets;
  24
  25         public PerspectiveCamera cam;
  26         public CameraInputController inputController;
  27         public ModelBatch modelBatch;
  28         public Model axesModel;
  29         public ModelInstance axesInstance;
  30         public boolean showAxes = true;
  31         public Array<ModelInstance> instances = new Array<ModelInstance>();
  32
  33         @Override
  34         public void create () {
  35                 if (assets == null)
  36                         assets = new AssetManager();
  37
  38                 modelBatch = new ModelBatch();
  39
  40                 cam = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
  41                 cam.position.set(10f, 10f, 10f);
  42                 cam.lookAt(0,0,0);
  43                 cam.near = 0.1f;
  44                 cam.far = 1000f;
  45                 cam.update();
  46
  47                 createAxes();
  48
  49                 Gdx.input.setInputProcessor(inputController = new CameraInputController(cam));
  50         }
  51
  52         final float GRID_MIN = -10f;
  53         final float GRID_MAX = 10f;
  54         final float GRID_STEP = 1f;
  55         private void createAxes() {
  56                 ModelBuilder modelBuilder = new ModelBuilder();
  57                 modelBuilder.begin();
  58                 MeshPartBuilder builder = modelBuilder.part("grid", GL10.GL_LINES, Usage.Position | Usage.Color, new Material());
  59                 builder.setColor(Color.LIGHT_GRAY);
  60                 for (float t = GRID_MIN; t <= GRID_MAX; t+=GRID_STEP) {
  61                         builder.line(t, 0, GRID_MIN, t, 0, GRID_MAX);
  62                         builder.line(GRID_MIN, 0, t, GRID_MAX, 0, t);
  63                 }
  64                 builder = modelBuilder.part("axes", GL10.GL_LINES, Usage.Position | Usage.Color, new Material());
  65                 builder.setColor(Color.RED);
  66                 builder.line(0, 0, 0, 100, 0, 0);
  67                 builder.setColor(Color.GREEN);
  68                 builder.line(0, 0, 0, 0, 100, 0);
  69                 builder.setColor(Color.BLUE);
  70                 builder.line(0, 0, 0, 0, 0, 100);
  71                 axesModel = modelBuilder.end();
  72                 axesInstance = new ModelInstance(axesModel);
  73         }
  74
  75         protected abstract void render(final ModelBatch batch, final Array<ModelInstance> instances);
  76
  77         protected boolean loading = false;
  78         protected void onLoaded() {}
  79
  80         public void render(final Array<ModelInstance> instances) {
  81                 modelBatch.begin(cam);
  82                 if (showAxes)
  83                         modelBatch.render(axesInstance);
  84                 if (instances != null)
  85                         render(modelBatch, instances);
  86                 modelBatch.end();
  87         }
  88
  89         @Override
  90         public void render () {
  91                 if (loading && assets.update()) {
  92                         loading = false;
  93                         onLoaded();
  94                 }
  95
  96                 inputController.update();
  97
  98                 Gdx.gl.glViewport(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
  99                 Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
 100
 101                 render(instances);
 102         }
 103
 104         @Override
 105         public void resize (int width, int height) {
 106                 super.resize(width, height);
 107                 cam.viewportWidth = width;
 108                 cam.viewportHeight = height;
 109                 cam.update();
 110         }
 111
 112         @Override
 113         public void dispose () {
 114                 modelBatch.dispose();
 115                 assets.dispose();
 116                 assets = null;
 117                 axesModel.dispose();
 118                 axesModel = null;
 119         }
 120 }