Interpolate#

using System;
using UnityEngine;
using VisualScript.Icons;

namespace VisualScript.Runtime
{
    [Get]
    
    [Title("Interpolate")]
    [Category("Math/Interpolate", "Positions")]
    
    [Description("Interpolates a position between A and B given a ratio number")]
    [Image(typeof(IconInterpolate), ColorTheme.Type.Yellow)]
    
    [Keywords("Lerp", "Slerp", "Linear", "Smooth", "Damp", "Step")]
    
    [Serializable]
    public class TypeVector2MathInterpolatePositions : TypeVector2
    {
        [SerializeField] private GetVector2 m_PointA = new GetVector2();
        [SerializeField] private GetVector2 m_PointB = new GetVector2();
        
        [SerializeField] private GetNumber m_Ratio = new GetNumber();
        [SerializeField] private EaseMode m_Easing = EaseMode.Linear;
        [SerializeField] private GetBool m_Clamp = new GetBool();

        public override Vector2 GetPreview(GameObject source)
        {
            float ratio = Ease.Get(this.m_Easing, (float) this.m_Ratio.GetPreview(source));
            return Interpolate(this.m_PointA.GetPreview(source), this.m_PointB.GetPreview(source), ratio, this.m_Clamp.GetPreview(source));
        }

        public override Vector2 Get(Args args)
        {
            Vector2 a = this.m_PointA.Get(args);
            Vector2 b = this.m_PointB.Get(args);
            
            double ratio = Ease.Get(this.m_Easing, (float) this.m_Ratio.Get(args));
            bool clamp = this.m_Clamp.Get(args);
            
            return Interpolate(a, b, ratio, clamp);
        }

        private static Vector2 Interpolate(Vector2 a, Vector2 b, double ratio, bool clamp)
        {
            if (clamp) ratio = Math.Clamp(ratio, 0.0, 1.0);
            return new Vector2(
                (float) (a.x + (b.x - a.x) * ratio),
                (float) (a.y + (b.y - a.y) * ratio)
            );
        }

        public override string ToString()
        {
            return $"Interpolate {this.m_PointA} to {this.m_PointB} by {this.m_Ratio}";
        }
        
        protected override SubscriptionMode Subscription => SubscriptionMode.OnChange;
    }
}