136 lines
4.8 KiB
C#
136 lines
4.8 KiB
C#
#if GRIFFIN
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using System.Collections.Generic;
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using UnityEngine;
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namespace Pinwheel.Griffin
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{
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public static class GGrassUtilities
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{
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public static Vector3[] GetVertices(GGrassShape shape, Matrix4x4 matrix)
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{
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Vector3[] vertices = null;
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if (shape == GGrassShape.Quad)
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{
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vertices = new Vector3[]
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{
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new Vector3(-0.5f, 0, 0), new Vector3(-0.5f, 1, 0), new Vector3(0.5f, 1, 0),
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new Vector3(-0.5f, 0, 0), new Vector3(0.5f, 1, 0), new Vector3(0.5f, 0, 0)
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};
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}
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else if (shape == GGrassShape.Cross)
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{
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vertices = new Vector3[]
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{
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new Vector3(-0.5f, 0, 0), new Vector3(-0.5f, 1, 0), new Vector3(0.5f, 1, 0),
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new Vector3(-0.5f, 0, 0), new Vector3(0.5f, 1, 0), new Vector3(0.5f, 0, 0),
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new Vector3(0, 0, -0.5f), new Vector3(0, 1, -0.5f), new Vector3(0, 1, 0.5f),
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new Vector3(0, 0, -0.5f), new Vector3(0, 1, 0.5f), new Vector3(0, 0, 0.5f),
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};
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}
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else if (shape == GGrassShape.TriCross)
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{
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Vector3[] quads = new Vector3[]
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{
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new Vector3(-0.5f, 0, 0), new Vector3(-0.5f, 1, 0), new Vector3(0.5f, 1, 0),
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new Vector3(-0.5f, 0, 0), new Vector3(0.5f, 1, 0), new Vector3(0.5f, 0, 0)
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};
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List<Vector3> verts = new List<Vector3>();
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verts.AddRange(quads);
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Matrix4x4 rotate60 = Matrix4x4.Rotate(Quaternion.Euler(0, -60, 0));
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for (int i = 0; i < quads.Length; ++i)
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{
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verts.Add(rotate60.MultiplyPoint(quads[i]));
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}
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Matrix4x4 rotate120 = Matrix4x4.Rotate(Quaternion.Euler(0, -120, 0));
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for (int i = 0; i < quads.Length; ++i)
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{
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verts.Add(rotate120.MultiplyPoint(quads[i]));
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}
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vertices = verts.ToArray();
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}
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for (int i = 0; i < vertices.Length; ++i)
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{
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vertices[i] = matrix.MultiplyPoint(vertices[i]);
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}
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return vertices;
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}
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public static Vector2[] GetUVs(GGrassShape shape)
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{
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Vector2[] uvs = null;
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if (shape == GGrassShape.Quad)
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{
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uvs = new Vector2[]
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{
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Vector2.zero, Vector2.up, Vector2.one,
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Vector2.zero, Vector2.one, Vector2.right
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};
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}
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else if (shape == GGrassShape.Cross)
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{
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uvs = new Vector2[]
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{
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Vector2.zero, Vector2.up, Vector2.one,
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Vector2.zero, Vector2.one, Vector2.right,
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Vector2.zero, Vector2.up, Vector2.one,
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Vector2.zero, Vector2.one, Vector2.right
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};
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}
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else if (shape == GGrassShape.TriCross)
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{
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uvs = new Vector2[]
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{
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Vector2.zero, Vector2.up, Vector2.one,
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Vector2.zero, Vector2.one, Vector2.right,
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Vector2.zero, Vector2.up, Vector2.one,
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Vector2.zero, Vector2.one, Vector2.right,
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Vector2.zero, Vector2.up, Vector2.one,
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Vector2.zero, Vector2.one, Vector2.right
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};
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}
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return uvs;
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}
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public static Color[] GetColors(GGrassShape shape)
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{
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Color[] colors = null;
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if (shape == GGrassShape.Quad)
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{
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colors = new Color[]
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{
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Color.clear, Color.white, Color.white,
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Color.clear, Color.white, Color.clear
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};
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}
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else if (shape == GGrassShape.Cross)
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{
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colors = new Color[]
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{
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Color.clear, Color.white, Color.white,
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Color.clear, Color.white, Color.clear,
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Color.clear, Color.white, Color.white,
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Color.clear, Color.white, Color.clear
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};
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}
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else if (shape == GGrassShape.TriCross)
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{
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colors = new Color[]
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{
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Color.clear, Color.white, Color.white,
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Color.clear, Color.white, Color.clear,
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Color.clear, Color.white, Color.white,
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Color.clear, Color.white, Color.clear,
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Color.clear, Color.white, Color.white,
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Color.clear, Color.white, Color.clear
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};
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}
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return colors;
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}
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}
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}
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#endif
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