collision.java

来自「一个J2Me的赛车游戏」· Java 代码 · 共 24 行

public class Collision {
  public static float Check(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;
   }

}