AutoDrive v1

mods.js

if(! (!this.collisionDetection || !this.collisionMap || !this.collisionMap.loaded)) {
    if (this.speed < 7) {
        this.key.forward = true
    } else {
        this.key.forward = false
    }

    var x = Math.round(this.collisionMap.pixels.width / 2 + this.dummy.position.x * this.collisionPixelRatio);
    var z = Math.round(this.collisionMap.pixels.height / 2 + this.dummy.position.z * this.collisionPixelRatio);
    var pos = new THREE.Vector3(x, 0, z);

    var detectionBounds = 4

    this.key.right=false
    this.key.left=false
    this.key.ltrigger = false
    this.key.rtrigger = false

    // Detection
    this.repulsionVLeft.set(0.9, 0, 0);
    this.repulsionVRight.set(-0.9, 0, 0);
    this.dummy.matrix.rotateAxis(this.repulsionVLeft);
    this.dummy.matrix.rotateAxis(this.repulsionVRight);
    this.repulsionVLeft.multiplyScalar(detectionBounds);
    this.repulsionVRight.multiplyScalar(detectionBounds);

    var lPos = this.repulsionVLeft.addSelf(pos);
    var rPos = this.repulsionVRight.addSelf(pos);
    var lCol = this.collisionMap.getPixel(Math.round(lPos.x), Math.round(lPos.z)).r;
    var rCol = this.collisionMap.getPixel(Math.round(rPos.x), Math.round(rPos.z)).r;

    if (rCol > lCol) {// Turn right
        this.key.right = true
        if (this.speed > 2) {
            this.key.rtrigger = true
        }

    }
    else if (rCol < lCol) {// Turn left
        this.key.left = true
        if (this.speed > 2) {
            this.key.ltrigger = true
        }
    }

    // Look a short distance directly ahead, are we about to hit something? Turn HARD

    detectionBounds = 11 + this.speed * 0.2

    this.repulsionVLeft.set(0.1, 0, 0);
    this.repulsionVRight.set(-0.1, 0, 0);
    this.dummy.matrix.rotateAxis(this.repulsionVLeft);
    this.dummy.matrix.rotateAxis(this.repulsionVRight);
    this.repulsionVLeft.multiplyScalar(detectionBounds);
    this.repulsionVRight.multiplyScalar(detectionBounds);

    lPos = this.repulsionVLeft.addSelf(pos);
    rPos = this.repulsionVRight.addSelf(pos);
    lCol = this.collisionMap.getPixel(Math.round(lPos.x), Math.round(lPos.z)).r;
    rCol = this.collisionMap.getPixel(Math.round(rPos.x), Math.round(rPos.z)).r;

    if (rCol > lCol && this.speed > 4.5){
        this.key.forward = false
        this.key.right = true
        this.key.rtrigger = true
    }
    else if (rCol < lCol && this.speed > 4.5) {
        this.key.forward = false
        this.key.ltrigger = true
        this.key.left = true
    }
    if (rCol > 10 && lCol > 10 && this.speed > 5){
        this.key.forward = false
        this.key.ltrigger = true
        this.key.rtrigger = true
    }
}