428 lines
14 KiB
JavaScript
428 lines
14 KiB
JavaScript
// class camera extends THREE.PerspectiveCamera
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var PointerCamera = function() {
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THREE.PerspectiveCamera.apply(this, arguments);
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if (arguments[4] === undefined)
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listenerTarget = document;
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else
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listenerTarget = arguments[4];
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// Set Position
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this.theta = Math.PI;
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this.phi = Math.PI;
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// this.keyboard = undefined;
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this.moving = false;
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this.dragging = false;
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this.mouse = {x: 0, y: 0};
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this.mouseMove = {x: 0, y: 0};
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// Stuff for rendering
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this.position = new THREE.Vector3();
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this.forward = new THREE.Vector3();
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this.left = new THREE.Vector3();
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this.target = new THREE.Vector3(0,1,0);
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// Stuff for events
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this.motion = {};
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this.sensitivity = 0.05;
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this.speed = 1;
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// Raycaster for collisions
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this.raycaster = new THREE.Raycaster();
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// Create history object
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this.history = new History();
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// Set events from the document
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var self = this;
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var onKeyDown = function(event) {self.onKeyDown(event);};
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var onKeyUp = function(event) {self.onKeyUp(event);};
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var onMouseDown = function(event) {self.onMouseDown(event); };
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var onMouseMove = function(event) {self.onMouseMove(event); };
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var onMouseUp = function(event) {self.onMouseUp(event); };
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document.addEventListener('keydown', onKeyDown, false);
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document.addEventListener('keyup', onKeyUp, false);
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listenerTarget.addEventListener('mousedown', function(event) { if (event.which == 1) onMouseDown(event);}, false);
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listenerTarget.addEventListener('mousemove', function(event) { if (event.which == 1) onMouseMove(event);}, false);
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listenerTarget.addEventListener('mouseup', onMouseUp, false);
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// listenerTarget.addEventListener('mouseup', function() { console.log("mouseup");}, false);
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// listenerTarget.addEventListener('mouseout', onMouseUp, false);
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this.collisions = true;
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}
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PointerCamera.prototype = Object.create(THREE.PerspectiveCamera.prototype);
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PointerCamera.prototype.constructor = PointerCamera;
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// Update function
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PointerCamera.prototype.update = function(time) {
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if (this.moving) {
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this.linearMotion(time);
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} else if (this.movingHermite) {
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this.hermiteMotion(time);
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} else {
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this.normalMotion(time);
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}
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}
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PointerCamera.prototype.linearMotion = function(time) {
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var position_direction = Tools.diff(this.new_position, this.position);
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var target_direction = Tools.diff(this.new_target, this.target);
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this.position.add(Tools.mul(position_direction, 0.05 * time / 20));
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this.target.add(Tools.mul(target_direction, 0.05 * time / 20));
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if (Tools.norm2(Tools.diff(this.position, this.new_position)) < 0.01 &&
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Tools.norm2(Tools.diff(this.target, this.new_target)) < 0.01) {
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this.moving = false;
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this.anglesFromVectors();
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}
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}
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PointerCamera.prototype.hermiteMotion = function(time) {
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var eval = this.hermitePosition.eval(this.t);
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this.position.x = eval.x;
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this.position.y = eval.y;
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this.position.z = eval.z;
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this.target = Tools.sum(this.position, this.hermiteAngles.eval(this.t));
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this.t += 0.01 * time / 20;
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if (this.t > 1) {
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this.movingHermite = false;
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this.anglesFromVectors();
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}
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}
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PointerCamera.prototype.normalMotion = function(time) {
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// Update angles
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if (this.motion.increasePhi) {this.phi += this.sensitivity; this.changed = true; }
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if (this.motion.decreasePhi) {this.phi -= this.sensitivity; this.changed = true; }
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if (this.motion.increaseTheta) {this.theta += this.sensitivity; this.changed = true; }
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if (this.motion.decreaseTheta) {this.theta -= this.sensitivity; this.changed = true; }
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if (this.dragging) {
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this.theta += this.mouseMove.x;
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this.phi -= this.mouseMove.y;
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this.mouseMove.x = 0;
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this.mouseMove.y = 0;
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this.changed = true;
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}
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// Clamp phi and theta
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this.phi = Math.min(Math.max(-(Math.PI/2-0.1),this.phi), Math.PI/2-0.1);
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this.theta = ((this.theta - Math.PI) % (2*Math.PI)) + Math.PI;
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// Compute vectors (position and target)
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this.vectorsFromAngles();
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// Update with events
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var delta = 0.1;
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var forward = this.forward.clone();
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forward.multiplyScalar(400.0 * delta);
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var left = this.up.clone();
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left.cross(forward);
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left.normalize();
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left.multiplyScalar(400.0 * delta);
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// Move only if no collisions
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var speed = this.speed * time / 20;
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var direction = new THREE.Vector3();
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if (this.motion.boost) speed *= 10;
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if (this.motion.moveForward) {direction.add(Tools.mul(forward, speed)); this.changed = true;}
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if (this.motion.moveBackward) {direction.sub(Tools.mul(forward, speed)); this.changed = true;}
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if (this.motion.moveLeft) {direction.add(Tools.mul(left, speed)); this.changed = true;}
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if (this.motion.moveRight) {direction.sub(Tools.mul(left, speed)); this.changed = true;}
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if (!this.collisions || !this.isColliding(direction)) {
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this.position.add(direction);
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}
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// Update angle
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this.target = this.position.clone();
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this.target.add(forward);
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}
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PointerCamera.prototype.reset = function() {
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this.resetBobomb();
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this.moving = false;
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this.movingHermite = false;
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(new BD.Event.ResetClicked()).send();
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// this.position.copy(new THREE.Vector3(-8.849933489419644, 9.050627639459208, 0.6192960680432451));
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// this.target.copy(new THREE.Vector3(17.945323228767702, -15.156828589982375, -16.585740412769756));
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// this.anglesFromVectors();
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}
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PointerCamera.prototype.resetBobomb = function() {
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this.position.copy(new THREE.Vector3(34.51854618261728,10.038879540840306,-21.772598201888613));
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this.target.copy(new THREE.Vector3(-2.593404107644737,8.039712770013185,-6.983870133675925));
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this.anglesFromVectors();
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}
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PointerCamera.prototype.vectorsFromAngles = function() {
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// Update direction
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this.forward.y = Math.sin(this.phi);
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var cos = Math.cos(this.phi);
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this.forward.z = cos * Math.cos(this.theta);
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this.forward.x = cos * Math.sin(this.theta);
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this.forward.normalize();
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}
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PointerCamera.prototype.anglesFromVectors = function() {
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// Update phi and theta so that return to reality does not hurt
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var forward = Tools.diff(this.target, this.position);
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forward.normalize();
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this.phi = Math.asin(forward.y);
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// Don't know why this line works... But thanks Thierry-san and
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// Bastien because it seems to work...
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this.theta = Math.atan2(forward.x, forward.z);
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}
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PointerCamera.prototype.move = function(otherCamera, toSave) {
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if (toSave === undefined)
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toSave = true;
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this.moving = true;
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this.new_target = otherCamera.target.clone();
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this.new_position = otherCamera.position.clone();
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var t = [0,1];
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var f = [this.position.clone(), this.new_position];
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var fp = [Tools.diff(this.target, this.position), Tools.diff(this.new_target, this.new_position)];
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this.hermite = new Hermite.Polynom(t,f,fp);
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this.t = 0;
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if (toSave) {
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if (this.changed) {
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this.save();
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this.changed = false;
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}
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this.history.addState({position: otherCamera.position.clone(), target: otherCamera.target.clone()});
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}
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}
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PointerCamera.prototype.moveHermite = function(otherCamera, toSave) {
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if (toSave === undefined)
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toSave = true;
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this.movingHermite = true;
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this.t = 0;
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this.hermitePosition = new Hermite.special.Polynom(
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this.position.clone(),
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otherCamera.position.clone(),
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Tools.mul(Tools.diff(otherCamera.target, otherCamera.position).normalize(),4)
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);
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this.hermiteAngles = new Hermite.special.Polynom(
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Tools.diff(this.target, this.position),
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Tools.diff(otherCamera.target, otherCamera.position),
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new THREE.Vector3()
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);
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if (toSave) {
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if (this.changed) {
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this.save();
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this.changed = false;
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}
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this.history.addState({position: otherCamera.position.clone(), target: otherCamera.target.clone()});
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}
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}
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PointerCamera.prototype.isColliding = function(direction) {
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this.raycaster.set(this.position, direction.clone().normalize());
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var intersects = this.raycaster.intersectObjects(this.collidableObjects, true);
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for (var i in intersects) {
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if (intersects[i].distance < 100*this.speed) {
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return true;
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}
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}
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return false;
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}
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// Look function
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PointerCamera.prototype.look = function() {
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this.lookAt(this.target);
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}
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PointerCamera.prototype.addToScene = function(scene) {
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scene.add(this);
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}
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PointerCamera.prototype.onKeyEvent = function(event, toSet) {
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// Create copy of state
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var motionJsonCopy = JSON.stringify(this.motion);
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switch ( event.keyCode ) {
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// Azerty keyboards
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case 38: case 90: this.motion.moveForward = toSet; break; // up / z
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case 37: case 81: this.motion.moveLeft = toSet; break; // left / q
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case 40: case 83: this.motion.moveBackward = toSet; break; // down / s
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case 39: case 68: this.motion.moveRight = toSet; break; // right / d
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case 32: this.motion.boost = toSet; break;
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// Qwerty keyboards
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case 38: case 87: this.motion.moveForward = toSet; break; // up / w
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case 37: case 65: this.motion.moveLeft = toSet; break; // left / a
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case 40: case 83: this.motion.moveBackward = toSet; break; // down / s
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case 39: case 68: this.motion.moveRight = toSet; break; // right / d
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case 73: case 104: this.motion.increasePhi = toSet; break; // 8 Up for angle
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case 75: case 98: this.motion.decreasePhi = toSet; break; // 2 Down for angle
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case 74: case 100: this.motion.increaseTheta = toSet; break; // 4 Left for angle
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case 76: case 102: this.motion.decreaseTheta = toSet; break; // 6 Right for angle
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case 13: if (toSet) this.log(); break;
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}
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if (motionJsonCopy != JSON.stringify(this.motion)) {
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// Log any change
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var event = new BD.Event.KeyboardEvent();
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event.camera = this;
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event.send();
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}
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}
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PointerCamera.prototype.onKeyDown = function(event) {
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this.onKeyEvent(event, true);
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}
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PointerCamera.prototype.onKeyUp = function(event) {
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this.onKeyEvent(event, false);
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}
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PointerCamera.prototype.onMouseDown = function(event) {
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this.mouse.x = ( ( event.clientX - renderer.domElement.offsetLeft ) / renderer.domElement.width ) * 2 - 1;
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this.mouse.y = - ( ( event.clientY - renderer.domElement.offsetTop ) / renderer.domElement.height ) * 2 + 1;
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this.dragging = true;
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this.mouseMoved = false;
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}
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PointerCamera.prototype.onMouseMove = function(event) {
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if (this.dragging) {
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var mouse = {x: this.mouse.x, y: this.mouse.y};
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this.mouse.x = ( ( event.clientX - renderer.domElement.offsetLeft ) / renderer.domElement.width ) * 2 - 1;
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this.mouse.y = - ( ( event.clientY - renderer.domElement.offsetTop ) / renderer.domElement.height ) * 2 + 1;
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this.mouseMove.x = this.mouse.x - mouse.x;
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this.mouseMove.y = this.mouse.y - mouse.y;
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this.mouseMoved = true;
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}
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}
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PointerCamera.prototype.onMouseUp = function(event) {
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this.onMouseMove(event);
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// Send log to DB
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if (this.dragging && this.mouseMoved && !this.moving && !this.movingHermite) {
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var event = new BD.Event.KeyboardEvent();
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event.camera = this;
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event.send();
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}
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this.dragging = false;
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}
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PointerCamera.prototype.log = function() {
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console.log("createCamera(\nnew THREE.Vector3(" + this.position.x + "," + this.position.y + ',' + this.position.z + '),\n'
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+ "new THREE.Vector3(" + this.target.x + "," + this.target.y + ',' + this.target.z + ')\n)');
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}
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PointerCamera.prototype.save = function() {
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var backup = {};
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backup.position = this.position.clone();
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backup.target = this.target.clone();
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this.history.addState(backup);
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}
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PointerCamera.prototype.undo = function() {
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var move = this.history.undo();
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if (move !== undefined) {
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var event = new BD.Event.PreviousNextClicked();
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event.previous = true;
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event.camera = move;
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event.send();
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this.move(move, false);
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}
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}
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PointerCamera.prototype.redo = function() {
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var move = this.history.redo();
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if (move !== undefined) {
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var event = new BD.Event.PreviousNextClicked();
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event.previous = false;
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event.camera = move;
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event.send();
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this.move(move, false);
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}
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}
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PointerCamera.prototype.undoable = function() {
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return this.history.undoable();
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}
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PointerCamera.prototype.redoable = function() {
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return this.history.redoable();
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}
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// Static members
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PointerCamera.DISTANCE_X = 1000;
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PointerCamera.DISTANCE_Z = 300;
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var History = function() {
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this.states = new Array();
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this.index = -1;
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this.size = 0;
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console.log('New state ' + this.index + ' / ' + this.size);
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}
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History.prototype.addState = function(state) {
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++this.index;
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this.size = this.index + 1;
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this.states[this.size-1] = state;
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console.log('New state ' + this.index + ' / ' + this.size);
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}
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History.prototype.undo = function() {
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if (this.undoable()) {
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this.index--;
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console.log('New state ' + this.index + ' / ' + this.size);
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return this.currentState();
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}
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}
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History.prototype.redo = function() {
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if (this.redoable()) {
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this.index++;
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console.log('New state ' + this.index + ' / ' + this.size);
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return this.currentState();
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}
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}
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History.prototype.undoable = function() {
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return this.index > 0;
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}
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History.prototype.redoable = function() {
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return this.index < this.size - 1;
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}
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History.prototype.currentState = function() {
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return this.states[this.index];
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}
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