LTBezier.map C# (CSharp) Method

	private float map(float u) {
		float targetLength = u * this.arcLengths[(int)this.len];
		int low = 0;
		int high = (int)this.len;
		int index = 0;
		while (low < high) {
			index = low + ((int)((high - low) / 2.0f) | 0);
			if (this.arcLengths[index] < targetLength) {
				low = index + 1;
			} else {
				high = index;
			}
		}
		if(this.arcLengths[index] > targetLength)
			index--;
		if(index<0)
			index = 0;

		return (index + (targetLength - arcLengths[index]) / (arcLengths[index + 1] - arcLengths[index])) / this.len;
	}