-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathccshapenode.html
251 lines (216 loc) · 10.1 KB
/
ccshapenode.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
<!DOCTYPE html>
<html dir="ltr" class="js desktop" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta charset="utf-8">
<title>ccshapenode</title>
<script>
(function(H) {
H.className = H.className.replace(/\bno-js\b/, 'js')
})(document.documentElement)
</script>
<link rel="stylesheet" type="text/css" href="css.css">
<script type="text/javascript" charset="utf-8" src="js.js"></script>
</head>
<body>
<!--[if lte IE 7 ]><div id="IE7"><![endif]-->
<!--[if IE 8 ]><div id="IE8"><![endif]-->
<div id="dokuwiki__site">
<div id="dokuwiki__top" class="dokuwiki site mode_show ">
<!-- ********** HEADER ********** -->
<div id="dokuwiki__header">
<div class="pad group">
<hr class="a11y">
</div>
</div>
<!-- /header -->
<div class="wrapper group">
<!-- ********** CONTENT ********** -->
<div id="dokuwiki__content"><div class="pad group">
<div class="pageId"><span>zh_cn:api:ccshapenode</span></div>
<div class="page group">
<!-- wikipage start -->
<!-- TOC START -->
<div id="dw__toc">
<h3 class="toggle">Table of Contents</h3>
<div>
<ul class="toc">
<li class="level1"><div class="li"><a href="#ccshapenode">CCShapeNode</a></div>
<ul class="toc">
<li class="level2"><div class="li"><a href="#cccircleshape">CCCircleShape</a></div></li>
<li class="level2"><div class="li"><a href="#ccrectshape">CCRectShape</a></div></li>
<li class="level2"><div class="li"><a href="#ccpolygonshape">CCPolygonShape</a></div></li>
<li class="level2"><div class="li"><a href="#已知的问题">已知的问题</a></div></li>
</ul></li>
</ul>
</div>
</div>
<!-- TOC END -->
<h1 class="sectionedit1" id="ccshapenode">CCShapeNode</h1>
<div class="level1">
<p>
CCShapeNode 用于描绘一些基本的几何图形，例如圆、矩形、多边形等等。
</p>
<p>
~~
</p>
<p>
<strong>对象继承关系：</strong>
<a href="ccobject.html" class="wikilink1" title="zh_cn:api:ccobject">CCObject</a> ->
<a href="ccnode.html" class="wikilink1" title="zh_cn:api:ccnode">CCNode</a> -> CCShapeNode -> CCCircleShape, CCRectShape, CCPolygonShape, CCPointShape
</p>
<p>
~~
</p>
</div>
<h2 class="sectionedit2" id="cccircleshape">CCCircleShape</h2>
<div class="level2">
<p>
CCCircleShape 在屏幕上绘制一个圆。
</p>
<pre class="code lua"><span class="kw1">local</span> circle <span class="sy0">=</span> display<span class="sy0">.</span>newCircle<span class="br0">(</span><span class="nu0">100</span><span class="br0">)</span> <span class="co1">-- 半径 100 点</span>
circle<span class="sy0">:</span>setLineColor<span class="br0">(</span>ccc4f<span class="br0">(</span><span class="nu0">1.0</span><span class="sy0">,</span> <span class="nu0">1.0</span><span class="sy0">,</span> <span class="nu0">1.0</span><span class="sy0">,</span> <span class="nu0">1.0</span><span class="br0">)</span><span class="br0">)</span> <span class="co1">-- 白色</span>
circle<span class="sy0">:</span>setSegments<span class="br0">(</span><span class="nu0">128</span><span class="br0">)</span> <span class="co1">-- 由 128 个线段组成，线段越多圆越平滑但也更慢，默认为 32 段</span>
circle<span class="sy0">:</span>setScaleY<span class="br0">(</span><span class="nu0">0.8</span><span class="br0">)</span> <span class="co1">-- 垂直方向拉伸，可以绘制一个椭圆</span></pre>
<p>
~
</p>
<p>
CCCircleShape 可用的方法有：
</p>
<ul>
<li class="level1"><div class="li"><strong>getLineColor()</strong> 返回线段颜色（ccColor4F 类型）</div>
</li>
<li class="level1"><div class="li"><strong>setLineColor(ccColor4F 颜色值)</strong></div>
</li>
<li class="level1"><div class="li"><strong>getLineWidth()</strong> 返回线段宽度（整数）</div>
</li>
<li class="level1"><div class="li"><strong>setLineWidth(线段宽度)</strong></div>
</li>
<li class="level1"><div class="li"><strong>getRadius()</strong> 返回半径</div>
</li>
<li class="level1"><div class="li"><strong>setRadius(半径)</strong></div>
</li>
<li class="level1"><div class="li"><strong>getAngle()</strong> 返回弧度</div>
</li>
<li class="level1"><div class="li"><strong>setAngle(弧度)</strong> 设置非完整的弧度，可以绘制一条弧</div>
</li>
<li class="level1"><div class="li"><strong>getSegments()</strong> 返回构成圆的线段数量</div>
</li>
<li class="level1"><div class="li"><strong>setSegments(线段数量)</strong></div>
</li>
<li class="level1"><div class="li"><strong>isDrawLineToCenter()</strong> 确定是否绘制一条到圆心的线</div>
</li>
<li class="level1"><div class="li"><strong>setDrawLineToCenter(绘制到圆心的线)</strong></div>
</li>
</ul>
<p>
~~
</p>
</div>
<h2 class="sectionedit3" id="ccrectshape">CCRectShape</h2>
<div class="level2">
<p>
CCRectShape 绘制一个矩形。
</p>
<pre class="code lua"><span class="kw1">local</span> rect <span class="sy0">=</span> display<span class="sy0">.</span>newRect<span class="br0">(</span><span class="nu0">200</span><span class="sy0">,</span> <span class="nu0">100</span><span class="br0">)</span> <span class="co1">-- 创建一个宽度 200，高度 100 的矩形</span>
rect<span class="sy0">:</span>setFill<span class="br0">(</span><span class="kw4">true</span><span class="br0">)</span> <span class="co1">-- 设置为填充</span></pre>
<p>
~
</p>
<p>
CCRectShape 可用的方法有：
</p>
<ul>
<li class="level1"><div class="li"><strong>getLineColor()</strong> 返回线段颜色（ccColor4F 类型）</div>
</li>
<li class="level1"><div class="li"><strong>setLineColor(ccColor4F 颜色值)</strong></div>
</li>
<li class="level1"><div class="li"><strong>getLineWidth()</strong> 返回线段宽度（整数）</div>
</li>
<li class="level1"><div class="li"><strong>setLineWidth(线段宽度)</strong></div>
</li>
<li class="level1"><div class="li"><strong>setSize(CCSize)</strong> 设置矩形大小</div>
</li>
<li class="level1"><div class="li"><strong>isFill()</strong> 确定是否是填充的矩形</div>
</li>
<li class="level1"><div class="li"><strong>setFill(是否填充)</strong></div>
</li>
</ul>
<p>
~~
</p>
</div>
<h2 class="sectionedit4" id="ccpolygonshape">CCPolygonShape</h2>
<div class="level2">
<p>
CCPolygonShape 绘制一个由多个点组成的多边形。
</p>
<pre class="code lua"><span class="co1">-- 构造一个包含 3 个点的 CCPointArray 对象</span>
<span class="kw1">local</span> points <span class="sy0">=</span> CCPointArray<span class="sy0">:</span>create<span class="br0">(</span><span class="br0">)</span>
points<span class="sy0">:</span>add<span class="br0">(</span>CCPoint<span class="br0">(</span><span class="nu0">100</span><span class="sy0">,</span> <span class="nu0">100</span><span class="br0">)</span><span class="br0">)</span>
points<span class="sy0">:</span>add<span class="br0">(</span>CCPoint<span class="br0">(</span><span class="nu0">200</span><span class="sy0">,</span> <span class="nu0">200</span><span class="br0">)</span><span class="br0">)</span>
points<span class="sy0">:</span>add<span class="br0">(</span>CCPoint<span class="br0">(</span><span class="nu0">300</span><span class="sy0">,</span> <span class="nu0">100</span><span class="br0">)</span><span class="br0">)</span>
<span class="co1">-- 创建 CCPolygonShape 对象</span>
<span class="kw1">local</span> polygon <span class="sy0">=</span> CCPolygonShape<span class="sy0">:</span>create<span class="br0">(</span>points<span class="br0">)</span>
polygon<span class="sy0">:</span>setFill<span class="br0">(</span><span class="kw4">true</span><span class="br0">)</span> <span class="co1">-- 填充</span>
polygon<span class="sy0">:</span>setClose<span class="br0">(</span><span class="kw4">true</span><span class="br0">)</span> <span class="co1">-- 连接第一个点和最后一个点，形成封闭多边形</span></pre>
<p>
CCPointArray 请参考
<a href="ccpointarray.html" class="wikilink1" title="zh_cn:api:ccpointarray">CCPointArray</a> 。
</p>
<p>
~~
</p>
</div>
<h2 class="sectionedit5" id="已知的问题">已知的问题</h2>
<div class="level2">
<p>
CCShapeNode 及其继承类目前的实现存在一些问题：
</p>
<ul>
<li class="level1"><div class="li">由于 OpenGL ES 的限制，无法绘制平滑线段</div>
</li>
<li class="level1"><div class="li">性能较低</div>
</li>
<li class="level1"><div class="li">父对象的坐标应该是 0,0</div>
</li>
</ul>
</div>
<!-- wikipage stop -->
</div>
<div class="docInfo">zh_cn/api/ccshapenode.txt · Last modified: 2013/09/23 11:56 by dualface</div>
</div></div>
<!-- /content -->
<hr class="a11y">
<!-- PAGE ACTIONS -->
<div id="dokuwiki__pagetools">
<h3 class="a11y">Page Tools</h3>
<div class="tools">
<ul>
<li>
<a href="index.html" class="action backlink" rel="nofollow" title="home">
<span>home</span>
</a>
</li>
<li>
<a href="#dokuwiki__top" class="action top" accesskey="t" rel="nofollow" title="Back to top [T]">
<span>Back to top</span>
</a>
</li>
</ul>
</div>
</div>
</div>
<!-- /wrapper -->
</div>
</div>
<!-- /site -->
<div class="no">
<img src="zh_cn_api%20%5Bquick-cocos2d-x%20docs%5D_files/indexer.gif" alt="" height="1" width="2">
</div>
<div id="screen__mode" class="no"></div>
<!--[if ( lte IE 7 | IE 8 ) ]></div><![endif]-->
</body>
</html>