3D boids 转义边界框，p5js

问题描述

我在 p5js 中的基因 3D boid 不断逃离它们的边界框。我一定做得不正确，可以使用一些帮助。这是一个 live sketch。

这是边界框代码：

if (this.position.x < d) {
  desired = createVector(this.maxspeed,this.veLocity.y,this.maxspeed);
} else if (this.position.x > widthZone - d) {
  desired = createVector(-this.maxspeed,this.maxspeed); //-+-
}

if (this.position.y < d) {
  desired = createVector(this.veLocity.x,this.maxspeed,this.maxspeed);
} else if (this.position.y > heightZone - d) {
  desired = createVector(this.veLocity.x,-this.maxspeed,this.maxspeed); //+--
}

if (this.position.z < d) {
  desired = createVector(this.maxspeed,this.veLocity.z);
} else if (this.position.z > depth - d) {
  desired = createVector(this.maxspeed,-this.veLocity.z); //-++
}

非常感谢您的帮助。

解决方法

这似乎有更好的结果：

    if (this.position.x < d) {
      desired = createVector(this.maxspeed,this.velocity.y,this.velocity.z);
    } else if (this.position.x > widthZone - d) {
      desired = createVector(-this.maxspeed,this.velocity.z); //-+-
    }

    if (this.position.y < d) {
      desired = createVector(this.velocity.x,this.maxspeed,this.velocity.z);
    } else if (this.position.y > heightZone - d) {
      desired = createVector(this.velocity.x,-this.maxspeed,this.velocity.z); //+--
    }
    
    if (this.position.z < d) {
      desired = createVector(this.velocity.x,this.maxspeed);
    } else if (this.position.z > depth - d) {
      desired = createVector(this.velocity.x,-this.maxspeed); //-++
    }

基本上，这只会改变对象超出边界的维度中的所需速度。