Android Open Source - TicTacToe3D T T T3d Line

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License

The source code is released under:

MIT License

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Java Source Code

/**
 * Classe que desenha uma camada em forma de grade ("grid") 
 * do jogo da velha 3D//  ww w  .j  a v  a 2  s . c o  m
 *  
 * 
 */
package com.unibh.dcet.ccc.android.tictactoe3d.view;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;

import javax.microedition.khronos.opengles.GL10;

/**
 * Classe que desenha a forma de uma grade de uma das camadas 
 * para o jogo da velha 3D
 * 
 */
public class TTT3dLine {

  private FloatBuffer vertexBuffer; 
  private FloatBuffer colorBuffer;  
  
  /**
   * 
   */
  public TTT3dLine(float lenght, float unidade, 
               float[] startColor, float[] endColor) {
    // 
    float largura = (unidade * lenght);
        float vertices[] = {
                0, 0, 0,
                0, largura, 0
        };

        float colors[] = {
                startColor[0],  startColor[1],  startColor[2], startColor[3],
                endColor[0],  endColor[1],  endColor[2], endColor[3]
        };

        // Setup vertex array buffer. Vertices in float. A float has 4 bytes
    ByteBuffer vbb = ByteBuffer.allocateDirect(vertices.length * 4);
    vbb.order(ByteOrder.nativeOrder()); // Use native byte order
    vertexBuffer = vbb.asFloatBuffer(); // Convert from byte to float
    vertexBuffer.put(vertices);         // Copy data into buffer
    vertexBuffer.position(0);           // Rewind  

        ByteBuffer cbb = ByteBuffer.allocateDirect(colors.length * 4);
        cbb.order(ByteOrder.nativeOrder());
        colorBuffer = cbb.asFloatBuffer();
        colorBuffer.put(colors);
        colorBuffer.position(0);    
  }

  // Render the shape
  public void draw(GL10 gl) {
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
    gl.glLineWidth(1f);
    gl.glVertexPointer(3, GL10.GL_FLOAT, 0, vertexBuffer);
    gl.glColorPointer(4, GL10.GL_FLOAT, 0, colorBuffer);
    gl.glDrawArrays(GL10.GL_LINES, 0, 2);
    gl.glDisableClientState(GL10.GL_COLOR_ARRAY);
    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
  }

}

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