学安全方面久了,有点无聊,今天闲来无事
查了下除了Unity以外还有什么好用的游戏引擎,我尤其关注了Java写的游戏引擎
果然有,jMonkeyEngine,于是打算看看
JME简介:
jMonkeyEngine是一款适合冒险的Java开发人员的3D游戏引擎。
它是开源的,跨平台的,前沿的。
3.2.0是jMonkeyEngine 3 SDK的最新稳定版本,是完整的游戏开发套件。
该引擎由几个商业游戏工作室和计算机科学课程使用。
该引擎采用纯Java编写。
下面,开始基本的学习:
下载JME:从Github上面选择对应操作系统下载即可
第一个Demo:
显示一个小正方体
package mygame; import com.jme3.app.SimpleApplication; import com.jme3.light.DirectionalLight; import com.jme3.scene.Mesh; import com.jme3.scene.shape.Box; import com.jme3.material.Material; import com.jme3.math.Vector3f; import com.jme3.scene.Geometry; public class Main extends SimpleApplication { public static void main(String[] args) { Main app = new Main(); app.start(); } @Override public void simpleInitApp() { Mesh box=new Box(1,1,1); Material mat=new Material(assetManager,"Common/MatDefs/Light/Lighting.j3md"); Geometry geom = new Geometry("Box"); geom.setMesh(box); geom.setMaterial(mat); DirectionalLight sun =new DirectionalLight(); sun.setDirection(new Vector3f(-1,-2,-3)); rootNode.attachChild(geom); rootNode.addLight(sun); } }
父类SimpleApplication自带一个第一人称控制器,WASD直接操作:
或者在init中直接初始化相机坐标和旋转参数:
cam.setLocation(new Vector3f(4.4114223f, 3.3620508f, 7.5415998f)); cam.setRotation(new Quaternion(-0.046265673f, 0.9518722f, -0.1815604f, -0.2425582f));
可以提前设置好各种参数,直接启动游戏,跳过开始界面:
public static void main(String[] args) { AppSettings settings = new AppSettings(true); settings.setTitle("一个正方体"); settings.setResolution(1280, 1024); Main app = new Main(); app.setSettings(settings); app.setShowSettings(false); app.start(); }
第二个Demo:
让这个正方体自己旋转
package mygame; import com.jme3.app.SimpleApplication; import com.jme3.light.DirectionalLight; import com.jme3.scene.Mesh; import com.jme3.scene.shape.Box; import com.jme3.material.Material; import com.jme3.math.FastMath; import com.jme3.math.Quaternion; import com.jme3.math.Vector3f; import com.jme3.scene.Geometry; import com.jme3.system.AppSettings; public class Main extends SimpleApplication { private Geometry geom; public static void main(String[] args) { AppSettings settings = new AppSettings(true); settings.setTitle("一个正方体"); settings.setResolution(1280, 1024); Main app = new Main(); app.setSettings(settings); app.setShowSettings(false); app.start(); } @Override public void simpleInitApp() { Mesh box = new Box(1, 1, 1); Material mat = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md"); geom = new Geometry("Box"); geom.setMesh(box); geom.setMaterial(mat); DirectionalLight sun = new DirectionalLight(); sun.setDirection(new Vector3f(-1, -2, -3)); rootNode.attachChild(geom); rootNode.addLight(sun); cam.setLocation(new Vector3f(4.4114223f, 3.3620508f, 7.5415998f)); cam.setRotation(new Quaternion(-0.046265673f, 0.9518722f, -0.1815604f, -0.2425582f)); } @Override public void simpleUpdate(float deltaTime) { float speed = FastMath.TWO_PI; geom.rotate(0, deltaTime * speed, 0); } }
只是方块没有意思,我想办法搞到了诺手的模型,下载好导入:
导入后的结果是这样,不是很满意,因为没有贴图:
package mygame; import com.jme3.app.SimpleApplication; import com.jme3.light.AmbientLight; import com.jme3.light.DirectionalLight; import com.jme3.math.ColorRGBA; import com.jme3.math.Quaternion; import com.jme3.math.Vector3f; import com.jme3.scene.Geometry; import com.jme3.scene.Spatial; import com.jme3.system.AppSettings; public class Main extends SimpleApplication { private Geometry geom; public static void main(String[] args) { AppSettings settings = new AppSettings(true); settings.setTitle("诺手"); settings.setResolution(1280, 1024); Main app = new Main(); app.setSettings(settings); app.setShowSettings(false); app.start(); } @Override public void simpleInitApp() { cam.setLocation(new Vector3f(0.41600543f, 3.2057908f, 6.6927643f)); cam.setRotation(new Quaternion(-0.00414816f, 0.9817784f, -0.18875499f, -0.021575727f)); flyCam.setMoveSpeed(10); viewPort.setBackgroundColor(ColorRGBA.LightGray); Spatial model = assetManager.loadModel("Models/demo/Darius.obj"); model.scale(0.03f); model.center(); //定向光 DirectionalLight sun = new DirectionalLight(); sun.setDirection(new Vector3f(-1, -2, -3)); //环境光 AmbientLight ambient = new AmbientLight(); //调整光照亮度 ColorRGBA lightColor = new ColorRGBA(); sun.setColor(lightColor.mult(0.6f)); ambient.setColor(lightColor.mult(0.4f)); rootNode.attachChild(model); rootNode.addLight(sun); rootNode.addLight(ambient); } }
只有模型,没有贴图,可能是我没有导入吧。。。
无所谓了,我不是专业搞游戏的,今天只是想到了,随便看看
继续我的Kali学习之路。