純Java遊戲引擎JME3入門
阿新 • • 發佈:2018-11-25
學安全方面久了,有點無聊,今天閒來無事
查了下除了Unity以外還有什麼好用的遊戲引擎,我尤其關注了Java寫的遊戲引擎
果然有,jMonkeyEngine,於是打算看看
JME簡介:
jMonkeyEngine是一款適合冒險的Java開發人員的3D遊戲引擎。 它是開源的,跨平臺的,前沿的。 3.2.0是jMonkeyEngine 3 SDK的最新穩定版本,是完整的遊戲開發套件。 該引擎由幾個商業遊戲工作室和電腦科學課程使用。 該引擎採用純Java編寫。 下面,開始基本的學習: 下載JME:從Github上面選擇對應作業系統下載即可 第一個Demo: 顯示一個小正方體packagemygame; 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); } }
父類SimpleApplication自帶一個第一人稱控制器,WASD直接操作: 或者在init中直接初始化相機座標和旋轉引數:
cam.setLocation(new Vector3f(4.4114223f, 3.3620508f, 7.5415998f)); cam.setRotation(new Quaternion(-0.046265673f, 0.9518722f, -0.1815604f, -0.2425582f));
可以提前設定好各種引數,直接啟動遊戲,跳過開始介面:
public static void main(String[] args) { AppSettings settings = new AppSettings(true); settings.setTitle("一個正方體"); settings.setResolution(1280, 1024); Main app = new Main(); app.setSettings(settings); app.setShowSettings(false); app.start(); }
第二個Demo: 讓這個正方體自己旋轉
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("一個正方體"); 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); } }
只是方塊沒有意思,我想辦法搞到了諾手的模型,下載好匯入: 匯入後的結果是這樣,不是很滿意,因為沒有貼圖:
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("諾手"); 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)); //環境光 AmbientLight ambient = new AmbientLight(); //調整光照亮度 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,沒有貼圖,可能是我沒有匯入吧。。。
無所謂了,我不是專業搞遊戲的,今天只是想到了,隨便看看
繼續我的Kali學習之路。