Click here to Skip to main content
15,895,799 members
Articles / Mobile Apps / Android

Terminal Velocity Android

Rate me:
Please Sign up or sign in to vote.
4.47/5 (9 votes)
23 May 2013Apache9 min read 42.7K   977   30  
An android game using NDK JNI and Java.
package com.badlogic.androidgames.framework.gl;

import java.io.IOException;
import java.io.InputStream;

import javax.microedition.khronos.opengles.GL10;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.opengl.GLUtils;

import com.badlogic.androidgames.framework.FileIO;
import com.badlogic.androidgames.framework.impl.GLGame;
import com.badlogic.androidgames.framework.impl.GLGraphics;

public class Texture {
    GLGraphics glGraphics;
    FileIO fileIO;
    String fileName;
    int textureId;
    int minFilter;
    int magFilter;   
    public int width;
    public int height;
    
    public Texture(GLGame glGame, String fileName) {
        this.glGraphics = glGame.getGLGraphics();
        this.fileIO = glGame.getFileIO();
        this.fileName = fileName;
        load();
    }
    
    private void load() {
        GL10 gl = glGraphics.getGL();
        int[] textureIds = new int[1];
        gl.glGenTextures(1, textureIds, 0);
        textureId = textureIds[0];
        
        InputStream in = null;
        try {
            in = fileIO.readAsset(fileName);
            Bitmap bitmap = BitmapFactory.decodeStream(in);
            gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
            GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);
            setFilters(GL10.GL_NEAREST, GL10.GL_NEAREST);            
            gl.glBindTexture(GL10.GL_TEXTURE_2D, 0);
            width = bitmap.getWidth();
            height = bitmap.getHeight();
            bitmap.recycle();
        } catch(IOException e) {
            throw new RuntimeException("Couldn't load texture '" + fileName +"'", e);
        } finally {
            if(in != null)
                try { in.close(); } catch (IOException e) { }
        }
    }
    
    public void reload() {
        load();
        bind();
        setFilters(minFilter, magFilter);        
        glGraphics.getGL().glBindTexture(GL10.GL_TEXTURE_2D, 0);
    }
    
    public void setFilters(int minFilter, int magFilter) {
        this.minFilter = minFilter;
        this.magFilter = magFilter;
        GL10 gl = glGraphics.getGL();
        gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, minFilter);
        gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, magFilter);
    }    
    
    public void bind() {
        GL10 gl = glGraphics.getGL();
        gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
    }
    
    public void dispose() {
        GL10 gl = glGraphics.getGL();
        gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
        int[] textureIds = { textureId };
        gl.glDeleteTextures(1, textureIds, 0);
    }
}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Apache License, Version 2.0


Written By
Chief Technology Officer InductionLabs
India India
Currently I am an independent developer usually develops under brand name Induction games sometimes under Induction labs ,Can say that I am professionally developing apps for more than 4 years .

Some links to my apps in different apps stores are ..


Windows Phone
http://www.windowsphone.com/en-US/store/publishers?publisherId=InductionGames

Android
1. https://play.google.com/store/apps/developer?id=Induction+Labs&hl=en
2.https://play.google.com/store/apps/developer?id=Induction%20Games

Blackberry Store
http://appworld.blackberry.com/webstore/vendor/39848/?lang=en

Flash Games :
http://www.mochigames.com/developer/praveenojha/
*my flash portal is no longer active so the quiz game cant be played .

Perceptual computing phase 1 first prize Winner app (air piano)
http://software.intel.com/sites/campaigns/perceptualshowcase/air-piano.htm

My Blog
http://praveenojha.com

Comments and Discussions