初次提交

2022-09-19 18:05:01 +08:00
commit 57051fc44b
5401 changed files with 325410 additions and 0 deletions
--- a/BN赛艇/BNST/src/com/bn/clp/Speed.java
+++ b/BN赛艇/BNST/src/com/bn/clp/Speed.java
@@ -0,0 +1,138 @@
+package com.bn.clp;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.FloatBuffer;
+import android.opengl.GLES20;
+import com.bn.core.MatrixState;
+ 
+//可吃物体
+public class Speed extends SpeedForEat
+{
+	Diamond dd;
+	final float UNIT_SIZE=1.0f;
+	final float width=UNIT_SIZE;
+	final float height=UNIT_SIZE*2;
+	public Speed(int programId)
+	{
+		dd=new Diamond(programId,width,height);
+	} 
+	//总的绘制方法drawSelf
+	public void drawSelf(int texId)
+	{
+		dd.drawSelf(texId);
+	}
+	//内部类——菱形
+	private class Diamond
+	{
+		//自定义Shader程序的引用
+		int mProgram;
+		//总变换矩阵的引用id
+		int muMVPMatrixHandle;
+		//顶点属性的引用id
+		int maPositionHandle;
+		//顶点纹理坐标的引用id
+		int maTexCoorHandle;
+		
+		//顶点坐标数据缓冲
+		FloatBuffer mVertexBuffer;
+		//顶点纹理坐标数据缓冲
+		FloatBuffer mTexCoorBuffer;
+		int vCount=0;//顶点数量
+		
+		//R为圆柱底部的半径，r为圆柱上部的半径，angle_span表示的是切分的角度
+		public Diamond(int programId,float width,float height)
+		{
+			initVertexData(width,height);
+			initShader(programId);
+		}
+		//初始化坐标数据的initVertexData方法
+		public void initVertexData(float width,float height)
+		{
+			float[] vertex=new float[]
+            {
+				0,height,0,   -width,0,-width,   -width,0,width,
+				0,height,0,   -width,0,width,   width,0,width,
+				0,height,0,   width,0,width,   width,0,-width,
+				0,height,0,   width,0,-width,   -width,0,-width,
+				
+				0,-height,0,   -width,0,width,   -width,0,-width,
+				0,-height,0,   width,0,width,   -width,0,width,
+				0,-height,0,   width,0,-width,   width,0,width,
+				0,-height,0,   -width,0, -width,  width,0,-width, 
+            };
+			vCount=24;//顶点数量
+			ByteBuffer vbb=ByteBuffer.allocateDirect(vertex.length*4);
+			vbb.order(ByteOrder.nativeOrder());
+			mVertexBuffer=vbb.asFloatBuffer();
+			mVertexBuffer.put(vertex);
+			mVertexBuffer.position(0);
+			
+			float[] texcoor=new float[]
+            {
+				0.5f,0,   0,1,   1,1,
+				0.5f,0,   0,1,   1,1,
+				0.5f,0,   0,1,   1,1,
+				0.5f,0,   0,1,   1,1,
+				
+				0.5f,0,   0,1,   1,1,
+				0.5f,0,   0,1,   1,1,
+				0.5f,0,   0,1,   1,1,
+				0.5f,0,   0,1,   1,1,
+            };
+			ByteBuffer tbb=ByteBuffer.allocateDirect(texcoor.length*4);
+			tbb.order(ByteOrder.nativeOrder());
+			mTexCoorBuffer=tbb.asFloatBuffer();
+			mTexCoorBuffer.put(texcoor);
+			mTexCoorBuffer.position(0);
+		}
+		//初始化着色器程序的initShader方法
+		public void initShader(int programId)
+		{
+			mProgram=programId;
+			//获得顶点坐标数据的引用
+			maPositionHandle=GLES20.glGetAttribLocation(mProgram, "aPosition");
+			//顶点纹理坐标的引用id
+			maTexCoorHandle=GLES20.glGetAttribLocation(mProgram, "aTexCoor");
+			muMVPMatrixHandle=GLES20.glGetUniformLocation(mProgram, "uMVPMatrix");
+		}
+		//自定义的绘制方法
+		public void drawSelf(int texId)
+		{
+			//使用某套指定的Shader程序
+			GLES20.glUseProgram(mProgram);
+			//将最终变换矩阵传入到Shader程序中
+			GLES20.glUniformMatrix4fv(muMVPMatrixHandle, 1, false, MatrixState.getFinalMatrix(), 0);
+			//传入顶点坐标数据
+			GLES20.glVertexAttribPointer
+			(
+				maPositionHandle, 
+				3, 
+				GLES20.GL_FLOAT, 
+				false, 
+				3*4, 
+				mVertexBuffer
+			);
+			//传入纹理坐标数据
+			GLES20.glVertexAttribPointer
+			(
+				maTexCoorHandle, 
+				2, 
+				GLES20.GL_FLOAT, 
+				false, 
+				2*4, 
+				mTexCoorBuffer
+			);
+			//允许顶点位置数据数组
+	        GLES20.glEnableVertexAttribArray(maPositionHandle);  
+	        GLES20.glEnableVertexAttribArray(maTexCoorHandle);  
+	        
+	        //绑定纹理
+	        GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
+	        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texId);
+	        
+	        //绘制纹理矩形
+	        GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, vCount); 
+		}
+	}
+}