72 lines
1.6 KiB
C#
72 lines
1.6 KiB
C#
using Godot;
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using System;
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public partial class Line2d : Line2D
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{
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private TestScene Test { get; set; }
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public Vector2 Start => Test.A.Position;
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public Vector2 End => Test.B.Position;
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public float CurveRate { get; set; } = 20;
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public int CDir { get; set; } = 1;
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private void MakeCurve(float curveRate=20f, int cDir = 1)
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{
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Vector2[] xs = new Vector2[17];
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int[] x2 = new[] { 4, 12 };
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int[] x3 = new[] { 2, 6, 10, 14};
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int[] x4 = new[] { 1, 3, 5, 7, 9, 11, 13, 15 };
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Vector2 vd = End - Start;
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Vector2 nor = vd.Rotated(Mathf.Pi / 2 * cDir);
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Vector2 center = vd / 2 + 4f * nor / curveRate;
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xs[0] = Start;
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xs[16] = End;
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xs[8] = center + xs[0];
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foreach (int i in x2)
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{
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Vector2 v = xs[i + 4] - xs[i - 4];
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Vector2 n = v.Rotated(Mathf.Pi / 2 * cDir);
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Vector2 w = v / 2 + 2f * n / curveRate;
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xs[i] = w + xs[i - 4];
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}
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foreach (int i in x3)
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{
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Vector2 v = xs[i + 2] - xs[i - 2];
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Vector2 n = v.Rotated(Mathf.Pi / 2 * cDir);
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Vector2 w = v / 2 + n / curveRate;
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xs[i] = w + xs[i - 2];
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}
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foreach (int i in x4)
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{
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Vector2 v = xs[i + 1] - xs[i - 1];
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Vector2 n = v.Rotated(Mathf.Pi / 2 * cDir);
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Vector2 w = v / 2 + n / curveRate;
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xs[i] = w + xs[i - 1];
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}
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Points = xs;
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}
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private void T()
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{
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Points = new[] { new Vector2(1, 1), new Vector2(2, 3) };
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GD.Print(Points.Length);
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}
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// Called when the node enters the scene tree for the first time.
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public override void _Ready()
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{
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Test = GetParent<TestScene>();
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GD.Print("Ready");
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}
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// Called every frame. 'delta' is the elapsed time since the previous frame.
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public override void _Process(double delta)
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{
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//T();
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MakeCurve(CurveRate, CDir);
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}
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}
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