Android example source code file (GLSprite.java)

This example Android source code file (GLSprite.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

gl11ext, glsprite, grid, renderable

The GLSprite.java Android example source code

/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * 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.
 */

package com.android.spritemethodtest;

import javax.microedition.khronos.opengles.GL10;
import javax.microedition.khronos.opengles.GL11Ext;

/**
 * This is the OpenGL ES version of a sprite.  It is more complicated than the
 * CanvasSprite class because it can be used in more than one way.  This class
 * can draw using a grid of verts, a grid of verts stored in VBO objects, or
 * using the DrawTexture extension.
 */
public class GLSprite extends Renderable {
    // The OpenGL ES texture handle to draw.
    private int mTextureName;
    // The id of the original resource that mTextureName is based on.
    private int mResourceId;
    // If drawing with verts or VBO verts, the grid object defining those verts.
    private Grid mGrid;
    
    public GLSprite(int resourceId) {
        super();
        mResourceId = resourceId;
    }
    
    public void setTextureName(int name) {
        mTextureName = name;
    }
    
    public int getTextureName() {
        return mTextureName;
    }
    
    public void setResourceId(int id) {
        mResourceId = id;
    }
    
    public int getResourceId() {
        return mResourceId;
    }
    
    public void setGrid(Grid grid) {
        mGrid = grid;
    }
    
    public Grid getGrid() {
        return mGrid;
    }
    
    public void draw(GL10 gl) {
        gl.glBindTexture(GL10.GL_TEXTURE_2D, mTextureName);

        if (mGrid == null) {
            // Draw using the DrawTexture extension.
            ((GL11Ext) gl).glDrawTexfOES(x, y, z, width, height);
        } else {
            // Draw using verts or VBO verts.
            gl.glPushMatrix();
            gl.glLoadIdentity();
            gl.glTranslatef(
                    x, 
                    y, 
                    z);
            
            mGrid.draw(gl, true, false);
            
            gl.glPopMatrix();
        }
    }
}