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根据技能冷却的时间求出每个三角形所需要的时间

2014-05-20 14:41 260 查看

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基本思路根据技能冷却的时间求出每个三角形所需要的时间

根据流逝时间获取当前操作的三角形索引
最终根据三角形索引进行三角形顶点位移

代码如下，请根据注释来进行每一步的理解

[code]001

using UnityEngine;

002	using System.Collections;

005	[ExecuteInEditMode]

006	[AddComponentMenu( "Ace/Skill/Mask" )]

007	public class MyMask : MonoBehaviour {

009	private MeshFilter meshFilter;

011	private Vector3[] verts = new Vector3[10];

012	private float halfWidth = 0.5f;

013	private float halfHeight = 0.5f;

014	private float start; //开始时间

015	private float total; //技能冷却时间

016	private float once;

017	public Color color;

019	private bool play = false;

021	void Start () {

022	meshFilter=GetComponent<MeshFilter>();

023	meshFilter.sharedMesh = new Mesh();

024	ResetVertices();

025	SetMeshVertices(meshFilter.sharedMesh);

027	setTriangles(meshFilter.sharedMesh);

028	setColor(meshFilter.sharedMesh);

029	startMovice(30);

032	void OnMouseUp() {

033	startMovice(60);

036	public void startMovice(float time) {

037	if (play) return ;

038	total = time;

039	once = total / 8; //这里用8个三角形总时间算出每个三角形需要耗时

040	renderer.enabled = true; //每次开始让描绘对象可见

041	ResetVertices(); //每次开始重置顶点数据

042	play = true;

045	private void ResetVertices()

047	verts[0] = new Vector3(0.0f, 0.0f, 0.0f);

048	verts[1] = new Vector3(0.0f, halfHeight, 0.0f);

049	verts[2] = new Vector3(halfWidth, halfHeight, 0.0f);

050	verts[3] = new Vector3(halfWidth, 0.0f, 0.0f);

051	verts[4] = new Vector3(halfWidth, -halfHeight, 0.0f);

052	verts[5] = new Vector3(0.0f, -halfHeight, 0.0f);

053	verts[6] = new Vector3(-halfWidth, -halfHeight, 0.0f);

054	verts[7] = new Vector3(-halfWidth, 0.0f, 0.0f);

055	verts[8] = new Vector3(-halfWidth, halfHeight, 0.0f);

056	verts[9] = new Vector3(0.0f, halfHeight, 0.0f);

059	// 设置Mesh顶点数据

060	private void SetMeshVertices(Mesh mesh)

062	Vector3[] vertices = new Vector3[verts.Length];

063	for (int i = 0; i < verts.Length; ++i)

065	vertices[i] = verts[i];

067	mesh.vertices = vertices;

070	private void setColor(Mesh mesh)

072	Color[] colors = new Color[mesh.vertices.Length];

073	for (int i = 0; i < colors.Length; ++i)

075	colors[i] = color;

078	mesh.colors = colors;

081	private void setTriangles(Mesh mesh)

083	mesh.triangles = new int[]{

0,1,2,

0,2,3,

0,3,4,

0,4,5,

0,5,6,

0,6,7,

0,7,8,

0,8,9

};

095	// Update is called once per frame

096	void FixedUpdate()

098	if (!play) return ;

099	UpdateEffect(meshFilter.sharedMesh);

102	public void UpdateEffect(Mesh mesh)

104	float now = Time.time - start;

105	if (now >=total) { renderer.enabled = false; return ; }

// 更新顶点数据

107	Vector3[] vertices = mesh.vertices;

108	float percent = (now % once) / once; // 每个三角面遮罩的百分比

109	int index = (int)(now / once) + 1; // 当前修改的顶点索引

110	for (int i = index; i >0; --i)

112	switch (index)

case

1:

115	vertices[i].x = halfWidth * percent;

break

case

2:

119	vertices[i].y = halfHeight - halfHeight * percent;

break

case

3:

123	vertices[i].y = -halfHeight * percent;

break

case

4:

127	vertices[i].x = halfWidth * (1 - percent);

break

case

5:

131	vertices[i].x = -halfWidth * percent;

break

case

6:

135	vertices[i].y = -halfHeight * (1 - percent);

break

case

7:

139	vertices[i].y = halfHeight * percent;

break

case

8:

143	vertices[i].x = -halfWidth + halfWidth * percent;

break

148	mesh.vertices = vertices;

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根据技能冷却的时间 求出每个三角形所需要的时间

根据技能冷却的时间求出每个三角形所需要的时间