pooling.js

this.evaluate = function() {
        var maxFitness = 0
        for(var i = 0; i < this.populationSize; i++) {
            this.sticks[i].calculateFitness() // the distance from the target relative to current pos
            if (this.sticks[i].fitness > maxFitness) {
                maxFitness = this.sticks[i].fitness
            }
        }

        for(var i = 0; i < this.populationSize; i++) {          
            this.sticks[i].fitness /= maxFitness // normalize the fitness value to be between 0 and 1
        }

        this.pool = []
        for(var i = 0; i < this.populationSize; i++) {          
            var n = this.sticks[i].fitness * 100 // increase normalized value to between 0 and 100
            for (var j = 0; j < n; j++) {
                this.pool.add(this.sticks[i]) // add the current gene to the pool relative to how fit it is
            }
        }
    }