using Syntriax.Engine.Core;

namespace Syntriax.Engine.Physics2D.Primitives;

[System.Diagnostics.DebuggerDisplay("y = {Slope}x + {OffsetY}")]
public readonly struct LineEquation(float Slope, float OffsetY)
{
    public readonly float Slope { get; init; } = Slope;
    public readonly float OffsetY { get; init; } = OffsetY;

    public static float Resolve(LineEquation lineEquation, float x) => lineEquation.Slope * x + lineEquation.OffsetY; // y = mx + b

    public static bool ApproximatelyEquals(LineEquation left, LineEquation right)
        => left.Slope.ApproximatelyEquals(right.Slope) && left.OffsetY.ApproximatelyEquals(right.OffsetY);
}

public static class LineEquationExtensions
{
    public static float Resolve(this LineEquation lineEquation, float x) => LineEquation.Resolve(lineEquation, x);
    public static bool ApproximatelyEquals(this LineEquation left, LineEquation right) => LineEquation.ApproximatelyEquals(left, right);
}