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@@ -0,0 +1,147 @@
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+var Controller = function(){
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+ this.grid_size = {x: 20, y: 20};
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+ this.initial_length = 3;
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+ this.time_step = 400;
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+ this.collectibles = [];
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+ this.views = [];
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+ this.snake = new Snake(this.initial_length);
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+ var pos0 = {x: -1, y: -1};
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+
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+ var higgs = new Particle(pos0);
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+ higgs.mass = 125;
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+ higgs.type = "Higgs"
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+ var electron = new Particle(pos0);
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+ electron.mass = .0005;
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+ electron.type = "electron";
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+
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+ this.possible_collectibles = [
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+ {collectible: higgs, probability: 3e-3},
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+ {collectible: electron, probability: .5}
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+ ]
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+ this.stage = new createjs.Stage("demoCanvas");
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+}
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+
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+Controller.prototype.update_views = function(){
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+ for(view in this.views){
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+ this.views[view].update();
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+ }
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+}
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+
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+Controller.prototype.spawn_collectibles = function(){
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+ var collectible =get_random_element_with_probabilities(this.possible_collectibles);
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+ if (!collectible) return;
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+ collectible = Object.create(collectible.collectible);
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+ var rnd_pos = this.get_random_position();
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+ if (this.is_position_free(rnd_pos)) {
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+ collectible.position = rnd_pos;
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+ this.collectibles.push(collectible);
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+ this.add_view(new ParticleView(collectible));
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+ }
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+}
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+
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+Controller.prototype.start_game = function(){
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+ // this.session = new Session();
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+ var c = this;
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+ createjs.Ticker.on("tick", function(e){c.tick(e);});
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+ createjs.Ticker.addEventListener("tick", this.stage);
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+ createjs.Ticker.timingMode = createjs.Ticker.RAF;
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+ this.bind_events();
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+ this.time = 0;
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+
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+ for(phModel in controller.snake.physicists){
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+ var model = controller.snake.physicists[phModel];
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+ var phView = new PhysicistView(model);
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+ this.add_view(phView);
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+ }
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+}
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+
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+Controller.prototype.add_view = function(view){
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+ this.stage.addChild(view);
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+ this.views.push(view);
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+ if(view.animate){
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+ view.animate();
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+ }
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+}
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+
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+Controller.prototype.bind_events = function(){
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+ var c = this;
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+ window.onkeydown = function(e){
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+ var direction = null;
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+ switch (e.keyCode){
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+ case 37:
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+ direction = {x: -1, y: 0};
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+ break;
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+ case 38:
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+ direction = {x: 0, y: -1};
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+ break;
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+ case 39:
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+ direction = {x: 1, y: 0};
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+ break;
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+ case 40:
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+ direction = {x: 0, y: 1};
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+ break;
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+
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+ }
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+ if (direction){
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+ c.turn_snake(direction);
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+ }
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+ }
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+}
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+
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+Controller.prototype.turn_snake = function(direction){
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+ this.snake.physicists[0].direction = direction;
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+}
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+
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+
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+Controller.prototype.tick = function(event){
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+ if(event.time - this.time > this.time_step){
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+ this.time = event.time;
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+ var next_cell = this.get_next_cell_position();
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+ this.snake.move(next_cell);
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+ this.spawn_collectibles();
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+ this.update_views();
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+ }
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+ this.stage.update(event);
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+}
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+
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+Controller.prototype.get_next_cell_position = function(){
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+ var ph0 = this.snake.physicists[0];
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+ var next_cell = Object.create(ph0.position);
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+ next_cell.x += ph0.direction.x;
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+ next_cell.y += ph0.direction.y;
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+ if (next_cell.x < 0) next_cell.x = this.grid_size.x - 1;
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+ if (next_cell.y < 0) next_cell.y = this.grid_size.y - 1;
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+ if (next_cell.x == this.grid_size.x) next_cell.x = 0;
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+ if (next_cell.y == this.grid_size.y) next_cell.y = 0;
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+ return next_cell;
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+}
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+
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+Controller.prototype.get_random_position = function(){
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+ return {x: Math.floor(Math.random()*this.grid_size.x),
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+ y: Math.floor(Math.random()*this.grid_size.y)
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+ };
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+}
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+
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+Controller.prototype.is_position_free = function(position){
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+ var phs = this.snake.physicists;
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+ for (ph in phs){
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+ var pos = phs[ph].position;
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+ if (pos.x == position.x && pos.y == position.y) return false;
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+ }
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+ for (c in this.collectibles){
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+ var pos = this.collectibles[c].position;
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+ if (pos.x == position.x && pos.y == position.y) return false;
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+ }
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+ return true;
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+}
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+
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+var get_random_element_with_probabilities = function(array){
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+ var previous_probability = 0;
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+ var rnd = Math.random();
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+ for (ind in array){
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+ var probability = array[ind].probability;
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+ if (rnd < probability + previous_probability) return array[ind];
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+ previous_probability += probability;
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+ }
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+ return null;
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+}
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