Android Open Source - RollOverSphere---a-simple-libgdx-game Field Object

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Back to project page RollOverSphere---a-simple-libgdx-game.

License

The source code is released under:

MIT License

Java Source Code

package com.igorcrevar.rolloverchuck.objects;
// ww  w. j  av  a  2s .com
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.graphics.glutils.ShaderProgram;
import com.badlogic.gdx.math.Matrix4;
import com.badlogic.gdx.math.Vector2;
import com.igorcrevar.rolloverchuck.GameConsts;
import com.igorcrevar.rolloverchuck.GameData;
import com.igorcrevar.rolloverchuck.GameManager;
import com.igorcrevar.rolloverchuck.mesh.IMesh;

public class FieldObject {
  private IMesh mesh;
  private ShaderProgram sp;
  private Matrix4 modelMatrix;
  private TextureRegion texture;
  private Vector2 repeatFactor;
  private Vector2 uvMin = new Vector2();
  private Vector2 uvMax = new Vector2();
  
  public FieldObject(GameManager gameManager) {    
    mesh = gameManager.getMesh("plane");
    sp = gameManager.getShader("field");
    modelMatrix = new Matrix4().translate(GameData.ObjectZero);
    // how much texture is repeated in x and z 
    float facX = (int)((Gdx.graphics.getWidth() / 1280.0f) * 8.0f);
    float facY = (int)((Gdx.graphics.getHeight() / 720.0f) * 8.0f);
    repeatFactor = new Vector2(facX, facY);
  }
  
  public void setTexture(TextureRegion textRegion) {
    texture = textRegion;
    // ((FieldMesh)mesh).setTextureUV(texture.getU(), texture.getV(), texture.getU2(), texture.getV2());
    uvMin.set(texture.getU(), texture.getV());
    uvMax.set(texture.getU2(), texture.getV2());
  }
  
  public void draw(Matrix4 viewProjMatrix) {
    viewProjMatrix.mul(modelMatrix);
    if (texture != null) {
      texture.getTexture().bind(); // bind texture
    }
    sp.begin();
    sp.setUniformMatrix(GameConsts.ProjectionMatrixName,  viewProjMatrix);
    sp.setUniformi(GameConsts.TextureName, 0);
    sp.setUniformf("u_repeat", repeatFactor);
    sp.setUniformf("u_uvMax", uvMax);
    sp.setUniformf("u_uvMin", uvMin);
    mesh.draw(sp);
    sp.end();
  }
}

Java Source Code List

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