collisioin.java~4~

一个J2Me的赛车游戏

public class Collisioin {
  public static float checkcollisioin(float[] left, float[] right, float[] car) {

  float[] mid = new float[3];
  mid[0] = (left[0] + right[0]) / 2;
  mid[1] = 10f;
  mid[2] = (left[2] + right[2]) / 2;
  float[] carvet = VectorOps.vector(car[0] - mid[0], car[1] - mid[1],
                                    car[2] - mid[2]);
  carvet = VectorOps.normalize(carvet);
  left = VectorOps.vector(left[0] - mid[0], left[1] - mid[1],
                          left[2] - mid[2]);
  left = VectorOps.normalize(left);
  right = VectorOps.vector(right[0] - mid[0], right[1] - mid[1],
                           right[2] - mid[2]);
  right = VectorOps.normalize(right);
  float[] normVec = VectorOps.calcNormal(left, right);
  float dot = VectorOps.dotProduct(normVec, carvet);

  return dot;
}

}