ig.module('game.entities.non-weltmeister.weather-controller')

.requires('impact.entity')

.defines(function() {

    EntityWeatherController = ig.Entity.extend({

        // How many raindrops to spawn per second.
        rainRate: 64,

        // Timer for spawning entities.
        timer: null,

        // Used to prevent spawning too quickly.
        lastFrame: -1,

        // Type of weather effect.
        weather: null,

        init: function(x, y, settings) {
            this.parent(x, y, settings);

            // Start spawn timer.
            this.timer = new ig.Timer();
        },

        update: function() {

            if(this.weather=='rain') rate = this.rainRate;

            var frame = Math.floor(this.timer.delta() * rate);

            // Rain
            if (this.weather=='rain') {

                if( frame != this.lastFrame ) {

                    // Make up for missed spawns if too many frames passed.
                    for(var i=0; i< frame - this.lastFrame; i++) {

                        // Random distance from left of screen.
                        var x = ig.game.screen.x + Math.floor(Math.random() * (ig.system.width + ((1 / 3) * ig.system.height) - 30)) + 30;

                        // Random distance above top of screen.
                        var y = ig.game.screen.y - Math.floor(Math.random() * 16) - 32;

                        // Spawn a raindrop.
                        ig.game.spawnEntity(EntityRaindrop, x, y, {});

                    }

                    this.lastFrame = frame;
                }
            }

            // Call parent.
            this.parent();
        }
    });
});