About

Wein2DAndroid is a library for handling graphics, input and sound for Android apps in Java with very similar method names and structure to Wein2D to allow for easy porting of code across libraries.

Code Example

This is an Example for a simple App using Wein2DAndroid.

This is the main activity that's defined in the AndroidManifest.xml:

import devtaube.wein2dandroid.*;

public class ExampleProgram extends Wein2DApplication
{

    // cube values (feel free to play with these!)
    static final double CUBE_SIZE = 50.0; // the width and height of the cube (in pixels)
    static final double CUBE_JUMP_VELOCITY = 800.0; // the cube's jump velocity (in pixels per second)
    static final double CUBE_GRAVITATION = 1600.0; // gravitation (how much velocity gets removed per second)
    static final double CUBE_BOUNCEBACK_MULTIPLIER = 0.4; // how much velocity the cube keeps after hitting the ground

    double cubeHeight = 0.0;
    double cubeVelocity = 0.0;

    @Override
    public void onCreate()
    {
    }

    @Override
    public void onFrame()
    {
        // update calls //////////////////////////////////////////////////

        // if screen is tapped, set the cubes velocity (let the cube jump up)
        if(getMouseL()) cubeVelocity = CUBE_JUMP_VELOCITY;

        // move the cube up and down according to it's velocity
        cubeHeight += cubeVelocity * this.deltaTime;
        // if the cube is not on the ground remove some of the cube's velocity (gravitation)
        if(cubeHeight > 0.0) cubeVelocity -= CUBE_GRAVITATION * this.deltaTime;

        // if the cube is below or on the ground, set him onto the ground, invert the cube's velocity (movement) and remove some of it's velocity
        if(cubeHeight <= 0.0) {
            cubeVelocity = -cubeVelocity * CUBE_BOUNCEBACK_MULTIPLIER;
            cubeHeight = 0.0;
        }

        // render calls //////////////////////////////////////////////////

        // fill the screen with blue
        fill(11, 138, 143);

        // draw the cube
        drawRectangle()
                .setPosition((this.width - CUBE_SIZE) / 2.0, this.height - CUBE_SIZE - cubeHeight) // draw at the center of the screen (x axis), draw at the cube's height (y axis)
                .setSize(CUBE_SIZE, CUBE_SIZE) // draw the cube with it's width and height
                .setColor(255, 255, 255, 255)
                .draw(); // draw!
    }

}

Documentation

Documentation for Wein2DAndroid can be found at https://wein2ddocs.netlify.app.