3d-interface/static/js/ReplayCamera.js

121 lines
3.8 KiB
JavaScript

// class camera extends THREE.PerspectiveCamera
var ReplayCamera = function() {
THREE.PerspectiveCamera.apply(this, arguments);
this.started = false;
this.counter = 0;
this.position = new THREE.Vector3();
this.target = new THREE.Vector3();
this.new_position = new THREE.Vector3();
this.new_target = new THREE.Vector3();
var id = params.get.id;
var xhr = new XMLHttpRequest();
xhr.open("GET", "/prototype/replay_info/" + id, true);
(function(self) {
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
self.path = JSON.parse(xhr.responseText);
self.position.x = self.path[0].position.x;
self.position.y = self.path[0].position.y;
self.position.z = self.path[0].position.z;
self.target = new THREE.Vector3(
self.path[0].target.x,
self.path[0].target.y,
self.path[0].target.z
);
self.started = true;
self.move(self.path[++self.counter]);
}
}
})(this);
xhr.send();
// Set Position
this.theta = Math.PI;
this.phi = Math.PI;
}
ReplayCamera.prototype = Object.create(THREE.PerspectiveCamera.prototype);
ReplayCamera.prototype.constructor = ReplayCamera;
ReplayCamera.prototype.look = function() {
this.lookAt(this.target);
}
// Update function
ReplayCamera.prototype.update = function(time) {
if (this.started)
this.linearMotion(time);
}
ReplayCamera.prototype.linearMotion = function(time) {
var tmp = Tools.sum(Tools.mul(this.old_position, 1-this.t), Tools.mul(this.new_position, this.t));
this.position.x = tmp.x;
this.position.y = tmp.y;
this.position.z = tmp.z;
this.target = Tools.sum(Tools.mul(this.old_target, 1-this.t), Tools.mul(this.new_target, this.t));
this.t += 0.1 * time / 20;
if (this.t > 1) {
this.counter++;
if (this.counter < this.path.length) {
this.move(this.path[this.counter]);
} else {
this.started = false;
}
}
}
ReplayCamera.prototype.reset = function() {
this.resetBobomb();
this.moving = false;
this.movingHermite = false;
// this.position.copy(new THREE.Vector3(-8.849933489419644, 9.050627639459208, 0.6192960680432451));
// this.target.copy(new THREE.Vector3(17.945323228767702, -15.156828589982375, -16.585740412769756));
// this.anglesFromVectors();
}
ReplayCamera.prototype.resetBobomb = function() {
this.position.copy(new THREE.Vector3(34.51854618261728,10.038879540840306,-21.772598201888613));
this.target.copy(new THREE.Vector3(-2.593404107644737,8.039712770013185,-6.983870133675925));
this.anglesFromVectors();
}
ReplayCamera.prototype.vectorsFromAngles = function() {
// Update direction
this.forward.y = Math.sin(this.phi);
var cos = Math.cos(this.phi);
this.forward.z = cos * Math.cos(this.theta);
this.forward.x = cos * Math.sin(this.theta);
this.forward.normalize();
}
ReplayCamera.prototype.anglesFromVectors = function() {
// Update phi and theta so that return to reality does not hurt
var forward = Tools.diff(this.target, this.position);
forward.normalize();
this.phi = Math.asin(forward.y);
// Don't know why this line works... But thanks Thierry-san and
// Bastien because it seems to work...
this.theta = Math.atan2(forward.x, forward.z);
}
ReplayCamera.prototype.move = function(otherCamera) {
this.moving = true;
this.old_target = this.target.clone();
this.old_position = this.position.clone();
this.new_target = new THREE.Vector3(otherCamera.target.x, otherCamera.target.y, otherCamera.target.z);
this.new_position = new THREE.Vector3(otherCamera.position.x, otherCamera.position.y, otherCamera.position.z);
this.t = 0;
}