Просмотр архива Скрипт браузерной игры


<?php

/*

 * HexGL

 * @author Thibaut 'BKcore' Despoulain <http://bkcore.com>

 * @license This work is licensed under the Creative Commons Attribution-NonCommercial 3.0 Unported License. 

 *          To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/3.0/.

 */



var bkcore = bkcore || {};

bkcore.hexgl = bkcore.hexgl || {};



bkcore.hexgl.CameraChase = function(opts)

{

    this.dir = new THREE.Vector3(0,0,1);

    this.up = new THREE.Vector3(0,1,0);

    this.target = new THREE.Vector3();

    this.speedOffset = 0;

    this.speedOffsetMax = 10;

    this.speedOffsetStep = 0.05;



    this.modes = {

        CHASE: 0,

        ORBIT: 1

    }

    this.mode = this.modes.CHASE;



    this.camera = opts.camera;

    this.targetObject = opts.target;

    this.cameraCube = opts.cameraCube == undefined ? null : opts.cameraCube;



    this.yoffset = opts.yoffest == undefined ? 8.0 : opts.yoffest;

    this.zoffset = opts.zoffset == undefined ? 10.0 : opts.zoffset;

    this.viewOffset = opts.viewOffset == undefined ? 10.0 : opts.viewOffset;

    this.orbitOffset = 12;

    this.lerp = opts.lerp == undefined ? 0.5 : opts.lerp;

    this.time = 0.0;

}



bkcore.hexgl.CameraChase.prototype.update = function(dt, ratio)

{

    if(this.mode == this.modes.CHASE)

    {

        this.dir.set(0,0,1);

        this.up.set(0,1,0);



        this.targetObject.matrix.rotateAxis(this.up);

        this.targetObject.matrix.rotateAxis(this.dir);



        this.speedOffset += (this.speedOffsetMax*ratio - this.speedOffset) * Math.min(1, 0.3*dt);



        this.target.copy(this.targetObject.position);

        this.target.subSelf(this.dir.multiplyScalar(this.zoffset + this.speedOffset));

        this.target.addSelf(this.up.multiplyScalar(this.yoffset));

        this.target.y += -this.up.y + this.yoffset;

        this.camera.position.copy(this.target);

        

        this.camera.lookAt(this.dir.normalize().multiplyScalar(this.viewOffset).addSelf(this.targetObject.position));

    }

    else if(this.mode == this.modes.ORBIT)

    {

        this.time += dt*.008;

        this.dir.set(

            Math.cos(this.time)*this.orbitOffset,

            this.yoffset/2,

            Math.sin(this.time)*this.orbitOffset

        );

        this.target.copy(this.targetObject.position).addSelf(this.dir);

        this.camera.position.copy(this.target);

        this.camera.lookAt(this.targetObject.position);

    }



    if(this.cameraCube != null)

        this.cameraCube.rotation.copy(this.camera.rotation);

}

?>