3D 物体逃逸边界框

Question

我在 p5js 中的遗传 3D boids 不断逃离它们的边界框。我一定做得不对，需要一些帮助。这是实时草图。

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

有什么帮助吗？

Answer 1

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

基本上，这只会改变物体超出边界的维度中的所需速度。