Jumping Sphere Example - Jmonkeyengine Typing CST Test

Jumping Sphere Example — Jmonkeyengine Code

A sphere jumps up and falls down simulating gravity.

import com.jme3.app.SimpleApplication;
import com.jme3.scene.Geometry;
import com.jme3.scene.shape.Sphere;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;

public class JumpingSphereApp extends SimpleApplication {
	private Geometry sphere;
	private float vy = 0;
	private float y = 1;
	private float gravity = -9.8f;

	public static void main(String[] args) {
		new JumpingSphereApp().start();
	}

	@Override
	public void simpleInitApp() {
		Sphere s = new Sphere(16,16,1);
		sphere = new Geometry("Sphere", s);
		Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
		mat.setColor("Color", ColorRGBA.Green);
		sphere.setMaterial(mat);
		sphere.setLocalTranslation(0,y,0);
		rootNode.attachChild(sphere);
	}

	@Override
	public void simpleUpdate(float tpf) {
		vy += gravity * tpf;
		y += vy * tpf;
		if (y < 1) { y = 1; vy = 5; } // bounce
		sphere.setLocalTranslation(0, y, 0);
	}
}

Jmonkeyengine Language Guide

jMonkeyEngine (jME) is an open-source, cross-platform 3D game engine written in Java. It allows developers to create 3D games and interactive applications with full control over rendering, physics, and scene management.

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