233 lines
8.0 KiB
C#
233 lines
8.0 KiB
C#
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#define Graph_And_Chart_PRO
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using UnityEngine;
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namespace ChartAndGraph
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{
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/// <summary>
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/// This class contains functionallity for generating 3d and 2d bar meshes
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/// </summary
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class BarMesh
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{
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private static Mesh m2DStrechMesh;
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/// <summary>
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/// A lazy loaded 2d stretch mesh. This mesh is always the same
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/// </summary>
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public static Mesh StrechMesh2D
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{
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get
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{
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if (m2DStrechMesh == null)
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m2DStrechMesh = Generate2DMesh(1.0f);
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return m2DStrechMesh;
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}
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}
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/// <summary>
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/// updates the uv of a mesh generated with Generate2DMesh
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/// </summary>
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/// <param name="m"></param>
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/// <param name="maxV"></param>
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public static void Update2DMeshUv(Mesh m,float maxV)
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{
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Vector2[] uv = m.uv;
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uv[4] = uv[0] = new Vector2(0f, 0f);
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uv[5] = uv[1] = new Vector2(1f, 0f);
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uv[6] = uv[2] = new Vector2(1f, maxV);
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uv[7] = uv[3] = new Vector2(0f, maxV);
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m.uv = uv;
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}
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/// <summary>
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/// generates a 2d bar mesh with the specified maximum V coord. (used with trim material fit)
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/// </summary>
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/// <param name="maxV"></param>
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/// <returns></returns>
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public static Mesh Generate2DMesh(float maxV)
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{
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Vector3[] vertices = new Vector3[8];
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Vector2[] uv = new Vector2[8];
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int[] tringles = new int[12];
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vertices[4] = vertices[0] = new Vector3(-0.5f, 0f, 0f);
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vertices[5] = vertices[1] = new Vector3(0.5f, 0f, 0f);
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vertices[6] = vertices[2] = new Vector3(0.5f, 1f, 0f);
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vertices[7] = vertices[3] = new Vector3(-0.5f, 1f, 0f);
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uv[4] = uv[0] = new Vector2(0f, 0f);
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uv[5] = uv[1] = new Vector2(1f, 0f);
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uv[6] = uv[2] = new Vector2(1f, maxV);
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uv[7] = uv[3] = new Vector2(0f, maxV);
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WriteRect(tringles, 0, 1, 2, 0, 3, false);
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WriteRect(tringles, 2, 5, 6, 4, 7, true);
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Mesh mesh = new Mesh();
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mesh.hideFlags = HideFlags.DontSave;
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mesh.vertices = vertices;
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mesh.uv = uv;
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mesh.triangles = tringles;
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mesh.RecalculateNormals();
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return mesh;
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}
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/// <summary>
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/// writes a single rectangle to the tringles array
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/// </summary>
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/// <param name="tringles"></param>
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/// <param name="tringleIndex">this value is multiplied by 3 in order to find the real array index</param>
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/// <param name="a"> index of the first vertex</param>
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/// <param name="b"> index of the second vertex</param>
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/// <param name="c"> index of the third vertex</param>
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/// <param name="d"> index of the forth vertex</param>
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static void WriteRect(int[] tringles,int tringleIndex,int a,int b,int c,int d,bool flip)
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{
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if (flip)
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{
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WriteTringle(tringles, tringleIndex++, a, b, c);
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WriteTringle(tringles, tringleIndex, d, c, b);
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}
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else
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{
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WriteTringle(tringles, tringleIndex++, c, b, a);
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WriteTringle(tringles, tringleIndex, b, c, d);
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}
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}
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/// <summary>
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/// writes a single tringle to the tringle array
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/// </summary>
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/// <param name="tringles"></param>
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/// <param name="tringleIndex">this value is multiplied by 3 in order to find the real array index</param>
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/// <param name="a">index of the first vertex</param>
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/// <param name="b">index of the second vertex</param>
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/// <param name="c">index of the third vertex</param>
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static void WriteTringle(int[] tringles,int tringleIndex,int a,int b,int c)
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{
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int index = tringleIndex*3;
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tringles[index++] = a;
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tringles[index++] = b;
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tringles[index++] = c;
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}
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private static Mesh m3DStretchMesh;
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/// <summary>
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/// A lazy loaded 3d stretch mesh. This mesh is always the same
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/// </summary>
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public static Mesh StrechMesh3D
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{
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get
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{
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if (m3DStretchMesh == null)
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m3DStretchMesh = Generate3DMesh(1.0f);
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return m3DStretchMesh;
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}
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}
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/// <summary>
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/// updates the uv of a mesh created with Generate3DMesh
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/// </summary>
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/// <param name="m"></param>
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/// <param name="maxV"></param>
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public static void Update3DMeshUv(Mesh m, float maxV)
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{
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Vector2[] uv = m.uv;
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uv[0] = new Vector2(0f, 0f);
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uv[1] = new Vector2(1f, 0f);
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uv[2] = new Vector2(1f, maxV);
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uv[3] = new Vector2(0f, maxV);
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uv[4] = new Vector2(1f, 0f);
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uv[5] = new Vector2(0f, 0f);
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uv[6] = new Vector2(0f, maxV);
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uv[7] = new Vector2(1f, maxV);
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uv[8] = new Vector2(0f, 0f);
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uv[9] = new Vector2(1f, 0f);
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uv[10] = new Vector2(1f, 1f);
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uv[11] = new Vector2(0f, 1f);
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uv[12] = new Vector2(1f, 0f);
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uv[13] = new Vector2(0f, 0f);
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uv[14] = new Vector2(0f, 1f);
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uv[15] = new Vector2(1f, 1f); m.uv = uv;
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}
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/// <summary>
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/// generates a 3d bar mesh with the specified maximum V coord. (used with trim material fit)
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/// </summary>
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/// <param name="maxV"></param>
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/// <returns></returns>
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public static Mesh Generate3DMesh(float maxV)
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{
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Vector3[] vertices = new Vector3[16];
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Vector2[] uv = new Vector2[16];
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int[] tringles = new int[36];
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vertices[0] = new Vector3(-0.5f, 0f, -0.5f);
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vertices[1] = new Vector3(0.5f, 0f, -0.5f);
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vertices[2] = new Vector3(0.5f, 1f, -0.5f);
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vertices[3] = new Vector3(-0.5f, 1f, -0.5f);
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vertices[4] = new Vector3(-0.5f, 0f, 0.5f);
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vertices[5] = new Vector3(0.5f, 0f, 0.5f);
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vertices[6] = new Vector3(0.5f, 1f, 0.5f);
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vertices[7] = new Vector3(-0.5f, 1f, 0.5f);
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vertices[8] = new Vector3(-0.5f, 0f, -0.5f);
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vertices[9] = new Vector3(0.5f, 0f, -0.5f);
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vertices[10] = new Vector3(0.5f, 1f, -0.5f);
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vertices[11] = new Vector3(-0.5f, 1f, -0.5f);
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vertices[12] = new Vector3(-0.5f, 0f, 0.5f);
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vertices[13] = new Vector3(0.5f, 0f, 0.5f);
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vertices[14] = new Vector3(0.5f, 1f, 0.5f);
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vertices[15] = new Vector3(-0.5f, 1f, 0.5f);
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uv[0] = new Vector2(0f, 0f);
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uv[1] = new Vector2(1f, 0f);
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uv[2] = new Vector2(1f, maxV);
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uv[3] = new Vector2(0f, maxV);
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uv[4] = new Vector2(1f, 0f);
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uv[5] = new Vector2(0f, 0f);
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uv[6] = new Vector2(0f, maxV);
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uv[7] = new Vector2(1f, maxV);
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uv[8] = new Vector2(0f, 0f);
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uv[9] = new Vector2(1f, 0f);
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uv[10] = new Vector2(1f, 1f);
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uv[11] = new Vector2(0f, 1f);
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uv[12] = new Vector2(1f, 0f);
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uv[13] = new Vector2(0f, 0f);
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uv[14] = new Vector2(0f, 1f);
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uv[15] = new Vector2(1f, 1f);
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WriteRect(tringles, 0, 1, 2, 0, 3, false);
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WriteRect(tringles, 2, 5, 6, 4, 7, true);
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WriteRect(tringles, 4, 8, 9, 12, 13, true);
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WriteRect(tringles, 6, 10, 11, 14, 15, true);
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WriteRect(tringles, 8, 6, 5, 2, 1, true);
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WriteRect(tringles, 10, 7, 4, 3, 0, false);
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Mesh mesh = new Mesh();
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mesh.hideFlags = HideFlags.DontSave;
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mesh.vertices = vertices;
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mesh.uv = uv;
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mesh.triangles = tringles;
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mesh.RecalculateNormals();
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return mesh;
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}
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}
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}
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