海滩波浪OpenGL

package com.bn.Sample1_3; import static com.bn.Sample1_3.Constant.*; import javax.microedition.khronos.egl.EGLConfig; import javax.microedition.khronos.opengles.GL10; import com.bn.Sample13_3.R; import android.content.Context; import android.content.res.Resources; import android.opengl.GLES20; import android.opengl.GLSurfaceView; import android.view.MotionEvent; class GameSurfaceView extends GLSurfaceView { private SceneRenderer mRenderer;//场景渲染器 static Sample1_3_Activity activty; float mPreviousY; float mPreviousX; //-----纹理 int tex_grassId;//系统分配的草地纹理id int tex_sandId; int tex_leavesId;//系统分配的灌木纹理id int tex_treejointId;//树干的纹理id int tex_waterId;//水面纹理Id int tex_skyId;//天空纹理id //-----物体对象组件 TreesForControl treesForControl;//所有椰子树的控制类 TreeLeaves treeLeaves[];//叶子模型 TreeTrunk treeTrunk;//树干模型 FloorRect floorLand; //草地 SeaWater water;//水面 LandForm landForm;//灰度图山 SkyBall skyBall;//天空球 static float tx=CAMERA_X;//观察目标点x坐标 static float ty=CAMERA_HEIGHT;//观察目标点y坐标 static float tz=CAMERA_Z;//观察目标点z坐标 static float cx=(float) (tx+Math.sin(Math.toRadians(camera_direction))*DISTANCE);//摄像机x坐标 static float cy=CAMERA_HEIGHT;//摄像机y坐标 static float cz=(float) (tz+Math.cos(Math.toRadians(camera_direction))*DISTANCE);//摄像机z坐标 public GameSurfaceView(Context context) { super(context); activty=(Sample1_3_Activity)context; this.setEGLContextClientVersion(2); //设置使用OPENGL ES2.0 mRenderer = new SceneRenderer(); //创建场景渲染器 setRenderer(mRenderer); //设置渲染器 setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);//设置渲染模式为主动渲染 this.setKeepScreenOn(true); } //触摸事件回调方法 @Override public boolean onTouchEvent(MotionEvent e) { float y = e.getY(); float x = e.getX(); switch (e.getAction()) { case MotionEvent.ACTION_DOWN://按下动作 break; case MotionEvent.ACTION_UP://抬起动作 break; case MotionEvent.ACTION_MOVE: float dy = y - mPreviousY;//计算触控笔Y位移 float dx = x - mPreviousX;//计算触控笔X位移 if(dy>5&&DISTANCE>600)//前进 { DISTANCE-=20; } else if(dy<-5&&DISTANCE<4700)//后退 { DISTANCE+=20; } if(dx<-10)//左转弯 { camera_direction-=dx*0.1f; } else if(dx>10)//右转弯 { camera_direction-=dx*0.1f; } break; } mPreviousY = y;//记录触控笔位置 mPreviousX = x;//记录触控笔位置 //重新初始化摄像机的位置和方向 cx=(float) (tx+Math.sin(Math.toRadians(camera_direction))*DISTANCE);//摄像机x坐标 cy=CAMERA_HEIGHT;//摄像机y坐标 cz=(float) (tz+Math.cos(Math.toRadians(camera_direction))*DISTANCE);//摄像机z坐标 return true; } class SceneRenderer implements GLSurfaceView.Renderer { float oldTime=0; public void onDrawFrame(GL10 gl) { float currTime=System.nanoTime(); System.out.println("FPS == "+1000000000.0/(currTime-oldTime)); //清除深度缓冲与颜色缓冲 GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT); MatrixState.setCamera(cx,cy,cz,tx,ty,tz,0f,1.0f,0.0f); //天空球旋转 sky_rotation=(sky_rotation+0.03f)%360; //创建天空 skyBall.drawSelf(tex_skyId,sky_rotation); //绘制山脉 drawLandForm(); //绘制水面 drawWater(); //绘制正常的椰子树 treesForControl.drawSelf(tex_leavesId,tex_treejointId,bend_R,wind_direction); oldTime=currTime; } public void onSurfaceChanged(GL10 gl, int width, int height) { //设置视窗大小及位置 GLES20.glViewport(0, 0, width, height); //计算GLSurfaceView的宽高比 float ratio = (float) width / height; //调用此方法计算产生透视投影矩阵 MatrixState.setProjectFrustum(-ratio, ratio, -1, 1, 3, 50000); //调用此方法产生摄像机9参数位置矩阵 MatrixState.setCamera(cx,cy,cz,tx,ty,tz,0f,1.0f,0.0f); } public void onSurfaceCreated(GL10 gl, EGLConfig config) { //设置屏幕背景色RGBA GLES20.glClearColor(0.0f,0.0f,0.0f,1.0f); //打开深度检测 GLES20.glEnable(GLES20.GL_DEPTH_TEST); //打开背面剪裁 GLES20.glEnable(GLES20.GL_CULL_FACE); //初始化变换矩阵 MatrixState.setInitStack(); //初始化光源位置 MatrixState.setLightLocation(sunPosition[0], sunPosition[1],sunPosition[2]); //加载shader ShaderManager.loadCodeFromFile(GameSurfaceView.this.getResources()); //编译shader ShaderManager.compileShader(); initAllObject();//初始化纹理组件 initAllTexture();//初始化纹理 //创建一个线程，定时摆动树干 new Thread() { @Override public void run() { while(flag_go) { //椰子树旋转 if(0!=wind)//如果风力为0级以上 { //设置椰子树的左右摆动 wind_speed+=wind_force;//摆动的速度 bend_R-=wind_speed;//摆动的幅度 if(bend_R>bend_R_max)//智力状态 { wind_speed=wind_speed_init; bend_R=bend_R_max; } } try { Thread.sleep(50); } catch(Exception e) { e.printStackTrace(); } } } }.start(); } } //绘制山地的方法 public void drawLandForm() { for(int i=0;i<floor_array.length;i++) { for(int j=0;j<floor_array[0].length;j++) { MatrixState.pushMatrix(); MatrixState.translate(j*FLOOR_WIDTH,0,i*FLOOR_HEIGHT); if(1==floor_array[i][j])//绘制高山 { landForm.drawSelf(tex_grassId,tex_sandId); } MatrixState.popMatrix(); } } } //绘制水面 public void drawWater() { MatrixState.pushMatrix(); MatrixState.translate(0, 3f, 0); //绘制水面 water.drawSelf(tex_waterId); MatrixState.popMatrix(); } //创建所有的物体组件对象 public void initAllObject() { //创建树干 treeTrunk=new TreeTrunk ( ShaderManager.getTreeWaveShaderProgram(), bottom_radius, joint_height, joint_num, joint_available_num ); //创建六片树叶 treeLeaves=new TreeLeaves[] { new TreeLeaves(ShaderManager.getLeavesShaderProgram(),leaves_width,leaves_height,leaves_offset,0), new TreeLeaves(ShaderManager.getLeavesShaderProgram(),leaves_width,leaves_height,leaves_offset,1), new TreeLeaves(ShaderManager.getLeavesShaderProgram(),leaves_width,leaves_height,leaves_offset,2), new TreeLeaves(ShaderManager.getLeavesShaderProgram(),leaves_width,leaves_height,leaves_offset,3), new TreeLeaves(ShaderManager.getLeavesShaderProgram(),leaves_width,leaves_height,leaves_offset,4), new TreeLeaves(ShaderManager.getLeavesShaderProgram(),leaves_width,leaves_height,leaves_offset,5) }; //创建树的控制类 treesForControl=new TreesForControl(treeTrunk,treeLeaves); //创建海底 floorLand=new FloorRect ( ShaderManager.getTextureShaderProgram(), FLOOR_WIDTH, FLOOR_HEIGHT );