using UnityEngine;

namespace UIWidgets
{
	[AddComponentMenu("UI/CenteredSlider", 300)]
	public class CenteredSlider : CenteredSliderBase<int>
	{
		protected override float ValueToPosition(int value)
		{
			value = InBounds(value);
			float num = RangeSize() / 2f;
			if (value == 0)
			{
				return num + GetStartPoint();
			}
			if (value > 0)
			{
				float num2 = num / (float)limitMax;
				return num2 * (float)value + GetStartPoint() + num;
			}
			float num3 = num / (float)limitMin;
			return num3 * (float)(limitMin - value) + GetStartPoint();
		}

		protected override int PositionToValue(float position)
		{
			float num = RangeSize() / 2f;
			if (position == num)
			{
				return 0;
			}
			float num2 = 0f;
			if (position > num)
			{
				float num3 = num / (float)limitMax;
				num2 = (position - num) / num3;
			}
			else
			{
				float num4 = num / (float)limitMin;
				num2 = (0f - position) / num4 + (float)base.LimitMin;
			}
			if (WholeNumberOfSteps)
			{
				return InBounds(Mathf.RoundToInt(num2 / (float)step) * step);
			}
			return InBounds(Mathf.RoundToInt(num2));
		}

		protected override Vector2 PositionLimits()
		{
			return new Vector2(ValueToPosition(base.LimitMin), ValueToPosition(base.LimitMax));
		}

		protected override int InBounds(int value)
		{
			return Mathf.Clamp(value, limitMin, limitMax);
		}

		protected override void Increase()
		{
			base.Value += step;
		}

		protected override void Decrease()
		{
			base.Value -= step;
		}

		protected override bool IsPositiveValue()
		{
			return base.Value > 0;
		}
	}
}