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<h1>Shape.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00002"></a>00002 <span class="comment">//</span>
<a name="l00003"></a>00003 <span class="comment">// SFML - Simple and Fast Multimedia Library</span>
<a name="l00004"></a>00004 <span class="comment">// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)</span>
<a name="l00005"></a>00005 <span class="comment">//</span>
<a name="l00006"></a>00006 <span class="comment">// This software is provided 'as-is', without any express or implied warranty.</span>
<a name="l00007"></a>00007 <span class="comment">// In no event will the authors be held liable for any damages arising from the use of this software.</span>
<a name="l00008"></a>00008 <span class="comment">//</span>
<a name="l00009"></a>00009 <span class="comment">// Permission is granted to anyone to use this software for any purpose,</span>
<a name="l00010"></a>00010 <span class="comment">// including commercial applications, and to alter it and redistribute it freely,</span>
<a name="l00011"></a>00011 <span class="comment">// subject to the following restrictions:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// 1. The origin of this software must not be misrepresented;</span>
<a name="l00014"></a>00014 <span class="comment">// you must not claim that you wrote the original software.</span>
<a name="l00015"></a>00015 <span class="comment">// If you use this software in a product, an acknowledgment</span>
<a name="l00016"></a>00016 <span class="comment">// in the product documentation would be appreciated but is not required.</span>
<a name="l00017"></a>00017 <span class="comment">//</span>
<a name="l00018"></a>00018 <span class="comment">// 2. Altered source versions must be plainly marked as such,</span>
<a name="l00019"></a>00019 <span class="comment">// and must not be misrepresented as being the original software.</span>
<a name="l00020"></a>00020 <span class="comment">//</span>
<a name="l00021"></a>00021 <span class="comment">// 3. This notice may not be removed or altered from any source distribution.</span>
<a name="l00022"></a>00022 <span class="comment">//</span>
<a name="l00024"></a>00024 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment">// Headers</span>
<a name="l00028"></a>00028 <span class="comment"></span><span class="preprocessor">#include <SFML/Graphics/Shape.hpp></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <SFML/Graphics/GraphicsContext.hpp></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <math.h></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">namespace </span>sf
<a name="l00034"></a>00034 {
<a name="l00038"></a><a class="code" href="classsf_1_1Shape.htm#413a457f720835b9f5d8e97ca8b80960">00038</a> <a class="code" href="classsf_1_1Shape.htm#413a457f720835b9f5d8e97ca8b80960" title="Default constructor.">Shape::Shape</a>() :
<a name="l00039"></a>00039 myOutline (0.f),
<a name="l00040"></a>00040 myIsFillEnabled (true),
<a name="l00041"></a>00041 myIsOutlineEnabled(true),
<a name="l00042"></a>00042 myIsCompiled (false)
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 <span class="comment">// Put a placeholder for the center of the shape</span>
<a name="l00045"></a>00045 myPoints.push_back(Point());
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047
<a name="l00048"></a>00048
<a name="l00052"></a><a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92">00052</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">Shape::AddPoint</a>(<span class="keywordtype">float</span> X, <span class="keywordtype">float</span> Y, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 <a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(<a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>(X, Y), Col, OutlineCol);
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056
<a name="l00057"></a>00057
<a name="l00061"></a><a class="code" href="classsf_1_1Shape.htm#212f5b1d630e820989a53dcbf46d33e4">00061</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">Shape::AddPoint</a>(<span class="keyword">const</span> <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>& Position, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063 myPoints.push_back(Point(Position, Col, OutlineCol));
<a name="l00064"></a>00064 myIsCompiled = <span class="keyword">false</span>;
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067
<a name="l00071"></a><a class="code" href="classsf_1_1Shape.htm#8bafa82b4f42937d897c5c5aecd22350">00071</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classsf_1_1Shape.htm#8bafa82b4f42937d897c5c5aecd22350" title="Get the number of points composing the shape.">Shape::GetNbPoints</a>()<span class="keyword"> const</span>
<a name="l00072"></a>00072 <span class="keyword"></span>{
<a name="l00073"></a>00073 <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">unsigned</span> <span class="keywordtype">int</span><span class="keyword">></span>(myPoints.size() - 1);
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075
<a name="l00076"></a>00076
<a name="l00081"></a><a class="code" href="classsf_1_1Shape.htm#6370770e5f1d1c1b1abfeef80d6296ae">00081</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#6370770e5f1d1c1b1abfeef80d6296ae" title="Enable or disable filling the shape.">Shape::EnableFill</a>(<span class="keywordtype">bool</span> Enable)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 myIsFillEnabled = Enable;
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085
<a name="l00086"></a>00086
<a name="l00091"></a><a class="code" href="classsf_1_1Shape.htm#f65abf11c7faa1a78c6d203e68a35a26">00091</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#f65abf11c7faa1a78c6d203e68a35a26" title="Enable or disable drawing the shape outline.">Shape::EnableOutline</a>(<span class="keywordtype">bool</span> Enable)
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 myIsOutlineEnabled = Enable;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096
<a name="l00100"></a><a class="code" href="classsf_1_1Shape.htm#f3eaee50b3af95d9884b41fc3996567e">00100</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#f3eaee50b3af95d9884b41fc3996567e" title="Set the position of a point.">Shape::SetPointPosition</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Index, <span class="keyword">const</span> <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>& Position)
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 myPoints[Index + 1].Position = Position;
<a name="l00103"></a>00103 myIsCompiled = <span class="keyword">false</span>;
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106
<a name="l00110"></a><a class="code" href="classsf_1_1Shape.htm#e3000e995446507929c24b3abbcce18c">00110</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#f3eaee50b3af95d9884b41fc3996567e" title="Set the position of a point.">Shape::SetPointPosition</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Index, <span class="keywordtype">float</span> X, <span class="keywordtype">float</span> Y)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <a class="code" href="classsf_1_1Shape.htm#f3eaee50b3af95d9884b41fc3996567e" title="Set the position of a point.">SetPointPosition</a>(Index, <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>(X, Y));
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114
<a name="l00115"></a>00115
<a name="l00119"></a><a class="code" href="classsf_1_1Shape.htm#d55eab90a2fb9fd0bcc1dd695b0bc769">00119</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#d55eab90a2fb9fd0bcc1dd695b0bc769" title="Set the color of a point.">Shape::SetPointColor</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Index, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col)
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 myPoints[Index + 1].Col = Col;
<a name="l00122"></a>00122 myIsCompiled = <span class="keyword">false</span>;
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124
<a name="l00125"></a>00125
<a name="l00129"></a><a class="code" href="classsf_1_1Shape.htm#d28205b9e4784ae0adcc2209669572fe">00129</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#d28205b9e4784ae0adcc2209669572fe" title="Set the outline color of a point.">Shape::SetPointOutlineColor</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Index, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 myPoints[Index + 1].OutlineCol = OutlineCol;
<a name="l00132"></a>00132 myIsCompiled = <span class="keyword">false</span>;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134
<a name="l00135"></a>00135
<a name="l00139"></a><a class="code" href="classsf_1_1Shape.htm#77ce4ef6cf1944768b2bc88c98a98b65">00139</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#77ce4ef6cf1944768b2bc88c98a98b65" title="Change the width of the shape outline.">Shape::SetOutlineWidth</a>(<span class="keywordtype">float</span> Width)
<a name="l00140"></a>00140 {
<a name="l00141"></a>00141 myOutline = Width;
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144
<a name="l00148"></a><a class="code" href="classsf_1_1Shape.htm#2b3cf65f5453a84466f749b97e611436">00148</a> <span class="keyword">const</span> <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>& <a class="code" href="classsf_1_1Shape.htm#2b3cf65f5453a84466f749b97e611436" title="Get the position of a point.">Shape::GetPointPosition</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Index)<span class="keyword"> const</span>
<a name="l00149"></a>00149 <span class="keyword"></span>{
<a name="l00150"></a>00150 <span class="keywordflow">return</span> myPoints[Index + 1].Position;
<a name="l00151"></a>00151 }
<a name="l00152"></a>00152
<a name="l00153"></a>00153
<a name="l00157"></a><a class="code" href="classsf_1_1Shape.htm#f22db94719a2e359cb02dd4108e6ea92">00157</a> <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& <a class="code" href="classsf_1_1Shape.htm#f22db94719a2e359cb02dd4108e6ea92" title="Get the color of a point.">Shape::GetPointColor</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Index)<span class="keyword"> const</span>
<a name="l00158"></a>00158 <span class="keyword"></span>{
<a name="l00159"></a>00159 <span class="keywordflow">return</span> myPoints[Index + 1].Col;
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161
<a name="l00162"></a>00162
<a name="l00166"></a><a class="code" href="classsf_1_1Shape.htm#f9a40ea9b28f96f183533991e6f811b8">00166</a> <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& <a class="code" href="classsf_1_1Shape.htm#f9a40ea9b28f96f183533991e6f811b8" title="Get the outline color of a point.">Shape::GetPointOutlineColor</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Index)<span class="keyword"> const</span>
<a name="l00167"></a>00167 <span class="keyword"></span>{
<a name="l00168"></a>00168 <span class="keywordflow">return</span> myPoints[Index + 1].OutlineCol;
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170
<a name="l00171"></a>00171
<a name="l00175"></a><a class="code" href="classsf_1_1Shape.htm#ed31da968d6d4bc8f6a3b4bf808c1087">00175</a> <span class="keywordtype">float</span> <a class="code" href="classsf_1_1Shape.htm#ed31da968d6d4bc8f6a3b4bf808c1087" title="Get the width of the shape outline.">Shape::GetOutlineWidth</a>()<span class="keyword"> const</span>
<a name="l00176"></a>00176 <span class="keyword"></span>{
<a name="l00177"></a>00177 <span class="keywordflow">return</span> myOutline;
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179
<a name="l00180"></a>00180
<a name="l00184"></a><a class="code" href="classsf_1_1Shape.htm#90fe51b17c8029ed528d8590595a3f1f">00184</a> <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> <a class="code" href="classsf_1_1Shape.htm#90fe51b17c8029ed528d8590595a3f1f" title="Create a shape made of a single line (use floats).">Shape::Line</a>(<span class="keywordtype">float</span> P1X, <span class="keywordtype">float</span> P1Y, <span class="keywordtype">float</span> P2X, <span class="keywordtype">float</span> P2Y, <span class="keywordtype">float</span> Thickness, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col, <span class="keywordtype">float</span> Outline, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00185"></a>00185 {
<a name="l00186"></a>00186 <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a> P1(P1X, P1Y);
<a name="l00187"></a>00187 <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a> P2(P2X, P2Y);
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="comment">// Compute the extrusion direction</span>
<a name="l00190"></a>00190 <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a> Normal;
<a name="l00191"></a>00191 ComputeNormal(P1, P2, Normal);
<a name="l00192"></a>00192 Normal *= Thickness / 2;
<a name="l00193"></a>00193
<a name="l00194"></a>00194 <span class="comment">// Create the shape's points</span>
<a name="l00195"></a>00195 <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> S;
<a name="l00196"></a>00196 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(P1 - Normal, Col, OutlineCol);
<a name="l00197"></a>00197 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(P2 - Normal, Col, OutlineCol);
<a name="l00198"></a>00198 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(P2 + Normal, Col, OutlineCol);
<a name="l00199"></a>00199 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(P1 + Normal, Col, OutlineCol);
<a name="l00200"></a>00200 S.<a class="code" href="classsf_1_1Shape.htm#77ce4ef6cf1944768b2bc88c98a98b65" title="Change the width of the shape outline.">SetOutlineWidth</a>(Outline);
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="comment">// Compile it</span>
<a name="l00203"></a>00203 S.<a class="code" href="classsf_1_1Shape.htm#b51218d7bcc5444b81de34afd31c4c33" title="Compile the shape : compute its center and its outline.">Compile</a>();
<a name="l00204"></a>00204
<a name="l00205"></a>00205 <span class="keywordflow">return</span> S;
<a name="l00206"></a>00206 }
<a name="l00207"></a>00207
<a name="l00208"></a>00208
<a name="l00212"></a><a class="code" href="classsf_1_1Shape.htm#264e5374cac72a520fcf69c3bbdfe688">00212</a> <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> <a class="code" href="classsf_1_1Shape.htm#90fe51b17c8029ed528d8590595a3f1f" title="Create a shape made of a single line (use floats).">Shape::Line</a>(<span class="keyword">const</span> <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>& P1, <span class="keyword">const</span> <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>& P2, <span class="keywordtype">float</span> Thickness, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col, <span class="keywordtype">float</span> Outline, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00213"></a>00213 {
<a name="l00214"></a>00214 <span class="keywordflow">return</span> <a class="code" href="classsf_1_1Shape.htm#90fe51b17c8029ed528d8590595a3f1f" title="Create a shape made of a single line (use floats).">Shape::Line</a>(P1.<a class="code" href="classsf_1_1Vector2.htm#1e6ad77fa155f3753bfb92699bd28141" title="X coordinate of the vector.">x</a>, P1.<a class="code" href="classsf_1_1Vector2.htm#420f2481b015f4eb929c75f2af564299" title="Y coordinate of the vector.">y</a>, P2.<a class="code" href="classsf_1_1Vector2.htm#1e6ad77fa155f3753bfb92699bd28141" title="X coordinate of the vector.">x</a>, P2.<a class="code" href="classsf_1_1Vector2.htm#420f2481b015f4eb929c75f2af564299" title="Y coordinate of the vector.">y</a>, Thickness, Col, Outline, OutlineCol);
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217
<a name="l00221"></a><a class="code" href="classsf_1_1Shape.htm#aec9c0468a77871f6410aea757105498">00221</a> <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> <a class="code" href="classsf_1_1Shape.htm#aec9c0468a77871f6410aea757105498" title="Create a shape made of a single rectangle (use floats).">Shape::Rectangle</a>(<span class="keywordtype">float</span> P1X, <span class="keywordtype">float</span> P1Y, <span class="keywordtype">float</span> P2X, <span class="keywordtype">float</span> P2Y, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col, <span class="keywordtype">float</span> Outline, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00222"></a>00222 {
<a name="l00223"></a>00223 <span class="comment">// Create the shape's points</span>
<a name="l00224"></a>00224 <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> S;
<a name="l00225"></a>00225 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(<a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>(P1X, P1Y), Col, OutlineCol);
<a name="l00226"></a>00226 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(<a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>(P2X, P1Y), Col, OutlineCol);
<a name="l00227"></a>00227 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(<a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>(P2X, P2Y), Col, OutlineCol);
<a name="l00228"></a>00228 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(<a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>(P1X, P2Y), Col, OutlineCol);
<a name="l00229"></a>00229 S.<a class="code" href="classsf_1_1Shape.htm#77ce4ef6cf1944768b2bc88c98a98b65" title="Change the width of the shape outline.">SetOutlineWidth</a>(Outline);
<a name="l00230"></a>00230
<a name="l00231"></a>00231 <span class="comment">// Compile it</span>
<a name="l00232"></a>00232 S.<a class="code" href="classsf_1_1Shape.htm#b51218d7bcc5444b81de34afd31c4c33" title="Compile the shape : compute its center and its outline.">Compile</a>();
<a name="l00233"></a>00233
<a name="l00234"></a>00234 <span class="keywordflow">return</span> S;
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236
<a name="l00237"></a>00237
<a name="l00241"></a><a class="code" href="classsf_1_1Shape.htm#7273d55fb2e6ede4d901428a97579169">00241</a> <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> <a class="code" href="classsf_1_1Shape.htm#aec9c0468a77871f6410aea757105498" title="Create a shape made of a single rectangle (use floats).">Shape::Rectangle</a>(<span class="keyword">const</span> <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>& P1, <span class="keyword">const</span> <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>& P2, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col, <span class="keywordtype">float</span> Outline, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00242"></a>00242 {
<a name="l00243"></a>00243 <span class="keywordflow">return</span> <a class="code" href="classsf_1_1Shape.htm#aec9c0468a77871f6410aea757105498" title="Create a shape made of a single rectangle (use floats).">Shape::Rectangle</a>(P1.<a class="code" href="classsf_1_1Vector2.htm#1e6ad77fa155f3753bfb92699bd28141" title="X coordinate of the vector.">x</a>, P1.<a class="code" href="classsf_1_1Vector2.htm#420f2481b015f4eb929c75f2af564299" title="Y coordinate of the vector.">y</a>, P2.<a class="code" href="classsf_1_1Vector2.htm#1e6ad77fa155f3753bfb92699bd28141" title="X coordinate of the vector.">x</a>, P2.<a class="code" href="classsf_1_1Vector2.htm#420f2481b015f4eb929c75f2af564299" title="Y coordinate of the vector.">y</a>, Col, Outline, OutlineCol);
<a name="l00244"></a>00244 }
<a name="l00245"></a>00245
<a name="l00246"></a>00246
<a name="l00250"></a><a class="code" href="classsf_1_1Shape.htm#10ccaef12679a28cf4d3003fceffc2f0">00250</a> <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> <a class="code" href="classsf_1_1Shape.htm#10ccaef12679a28cf4d3003fceffc2f0" title="Create a shape made of a single circle (use floats).">Shape::Circle</a>(<span class="keywordtype">float</span> X, <span class="keywordtype">float</span> Y, <span class="keywordtype">float</span> Radius, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col, <span class="keywordtype">float</span> Outline, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00251"></a>00251 {
<a name="l00252"></a>00252 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> NbSegments = 40;
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="comment">// Create the points set</span>
<a name="l00255"></a>00255 <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> S;
<a name="l00256"></a>00256 <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a> Center(X, Y);
<a name="l00257"></a>00257 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < NbSegments; ++i)
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 <span class="keywordtype">float</span> Angle = i * 2 * 3.141592654f / NbSegments;
<a name="l00260"></a>00260 <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a> Offset(cos(Angle), sin(Angle));
<a name="l00261"></a>00261
<a name="l00262"></a>00262 S.<a class="code" href="classsf_1_1Shape.htm#b28fab6a7d2b596f15ef5c0611341c92" title="Add a point to the shape.">AddPoint</a>(Center + Offset * Radius, Col, OutlineCol);
<a name="l00263"></a>00263 }
<a name="l00264"></a>00264
<a name="l00265"></a>00265 <span class="comment">// Compile it</span>
<a name="l00266"></a>00266 S.<a class="code" href="classsf_1_1Shape.htm#77ce4ef6cf1944768b2bc88c98a98b65" title="Change the width of the shape outline.">SetOutlineWidth</a>(Outline);
<a name="l00267"></a>00267 S.<a class="code" href="classsf_1_1Shape.htm#b51218d7bcc5444b81de34afd31c4c33" title="Compile the shape : compute its center and its outline.">Compile</a>();
<a name="l00268"></a>00268
<a name="l00269"></a>00269 <span class="keywordflow">return</span> S;
<a name="l00270"></a>00270 }
<a name="l00271"></a>00271
<a name="l00272"></a>00272
<a name="l00276"></a><a class="code" href="classsf_1_1Shape.htm#b7b5082c253cf624b76de040f9c017d4">00276</a> <a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a> <a class="code" href="classsf_1_1Shape.htm#10ccaef12679a28cf4d3003fceffc2f0" title="Create a shape made of a single circle (use floats).">Shape::Circle</a>(<span class="keyword">const</span> <a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>& Center, <span class="keywordtype">float</span> Radius, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& Col, <span class="keywordtype">float</span> Outline, <span class="keyword">const</span> <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>& OutlineCol)
<a name="l00277"></a>00277 {
<a name="l00278"></a>00278 <span class="keywordflow">return</span> <a class="code" href="classsf_1_1Shape.htm#10ccaef12679a28cf4d3003fceffc2f0" title="Create a shape made of a single circle (use floats).">Shape::Circle</a>(Center.<a class="code" href="classsf_1_1Vector2.htm#1e6ad77fa155f3753bfb92699bd28141" title="X coordinate of the vector.">x</a>, Center.<a class="code" href="classsf_1_1Vector2.htm#420f2481b015f4eb929c75f2af564299" title="Y coordinate of the vector.">y</a>, Radius, Col, Outline, OutlineCol);
<a name="l00279"></a>00279 }
<a name="l00280"></a>00280
<a name="l00281"></a>00281
<a name="l00285"></a><a class="code" href="classsf_1_1Shape.htm#b32d683b125efd3bd7ccf878b1f50a31">00285</a> <span class="keywordtype">void</span> <a class="code" href="classsf_1_1Shape.htm#b32d683b125efd3bd7ccf878b1f50a31" title="/see Drawable::Render">Shape::Render</a>(<a class="code" href="classsf_1_1RenderTarget.htm" title="Base class for all render targets (window, image, .">RenderTarget</a>&)<span class="keyword"> const</span>
<a name="l00286"></a>00286 <span class="keyword"></span>{
<a name="l00287"></a>00287 <span class="comment">// Make sure the shape has at least 3 points (4 if we count the center)</span>
<a name="l00288"></a>00288 <span class="keywordflow">if</span> (myPoints.size() < 4)
<a name="l00289"></a>00289 <span class="keywordflow">return</span>;
<a name="l00290"></a>00290
<a name="l00291"></a>00291 <span class="comment">// Make sure the shape is compiled</span>
<a name="l00292"></a>00292 <span class="keywordflow">if</span> (!myIsCompiled)
<a name="l00293"></a>00293 <span class="keyword">const_cast<</span><a class="code" href="classsf_1_1Shape.htm" title="Shape defines a drawable convex shape ; it also defines helper functions to draw...">Shape</a>*<span class="keyword">></span>(<span class="keyword">this</span>)->Compile();
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="comment">// Shapes only use color, no texture</span>
<a name="l00296"></a>00296 GLCheck(glDisable(GL_TEXTURE_2D));
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="comment">// Draw the shape</span>
<a name="l00299"></a>00299 <span class="keywordflow">if</span> (myIsFillEnabled)
<a name="l00300"></a>00300 {
<a name="l00301"></a>00301 glBegin(GL_TRIANGLE_FAN);
<a name="l00302"></a>00302 {
<a name="l00303"></a>00303 <span class="keywordflow">for</span> (std::vector<Point>::const_iterator i = myPoints.begin(); i != myPoints.end(); ++i)
<a name="l00304"></a>00304 {
<a name="l00305"></a>00305 <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a> PointColor = i->Col * <a class="code" href="classsf_1_1Drawable.htm#a2a028c4a975b5ed6d5a560a1c44e0c8" title="Get the color of the object.">GetColor</a>();
<a name="l00306"></a>00306 glColor4f(PointColor.<a class="code" href="classsf_1_1Color.htm#6a5256ca24a4f9f0e0808f6fc23e01e1" title="Red component.">r</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#591daf9c3c55dea830c76c962d6ba1a5" title="Green component.">g</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#6707aedd0609c8920e12df5d7abc53cb" title="Blue component.">b</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#56dbdb47d5f040d9b78ac6a0b8b3a831" title="Alpha (transparency) component.">a</a> / 255.f);
<a name="l00307"></a>00307 glVertex2f(i->Position.x, i->Position.y);
<a name="l00308"></a>00308 }
<a name="l00309"></a>00309
<a name="l00310"></a>00310 <span class="comment">// Close the shape by duplicating the first point at the end</span>
<a name="l00311"></a>00311 <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a> PointColor = myPoints[1].Col * <a class="code" href="classsf_1_1Drawable.htm#a2a028c4a975b5ed6d5a560a1c44e0c8" title="Get the color of the object.">GetColor</a>();
<a name="l00312"></a>00312 glColor4f(PointColor.<a class="code" href="classsf_1_1Color.htm#6a5256ca24a4f9f0e0808f6fc23e01e1" title="Red component.">r</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#591daf9c3c55dea830c76c962d6ba1a5" title="Green component.">g</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#6707aedd0609c8920e12df5d7abc53cb" title="Blue component.">b</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#56dbdb47d5f040d9b78ac6a0b8b3a831" title="Alpha (transparency) component.">a</a> / 255.f);
<a name="l00313"></a>00313 glVertex2f(myPoints[1].Position.x, myPoints[1].Position.y);
<a name="l00314"></a>00314 }
<a name="l00315"></a>00315 glEnd();
<a name="l00316"></a>00316 }
<a name="l00317"></a>00317
<a name="l00318"></a>00318 <span class="comment">// Draw the outline</span>
<a name="l00319"></a>00319 <span class="keywordflow">if</span> (myIsOutlineEnabled)
<a name="l00320"></a>00320 {
<a name="l00321"></a>00321 glBegin(GL_TRIANGLE_STRIP);
<a name="l00322"></a>00322 {
<a name="l00323"></a>00323 <span class="keywordflow">for</span> (std::size_t i = 1; i < myPoints.size(); ++i)
<a name="l00324"></a>00324 {
<a name="l00325"></a>00325 <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a> PointColor = myPoints[i].OutlineCol * <a class="code" href="classsf_1_1Drawable.htm#a2a028c4a975b5ed6d5a560a1c44e0c8" title="Get the color of the object.">GetColor</a>();
<a name="l00326"></a>00326 glColor4f(PointColor.<a class="code" href="classsf_1_1Color.htm#6a5256ca24a4f9f0e0808f6fc23e01e1" title="Red component.">r</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#591daf9c3c55dea830c76c962d6ba1a5" title="Green component.">g</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#6707aedd0609c8920e12df5d7abc53cb" title="Blue component.">b</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#56dbdb47d5f040d9b78ac6a0b8b3a831" title="Alpha (transparency) component.">a</a> / 255.f);
<a name="l00327"></a>00327 glVertex2f(myPoints[i].Position.x, myPoints[i].Position.y);
<a name="l00328"></a>00328 glColor4f(PointColor.<a class="code" href="classsf_1_1Color.htm#6a5256ca24a4f9f0e0808f6fc23e01e1" title="Red component.">r</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#591daf9c3c55dea830c76c962d6ba1a5" title="Green component.">g</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#6707aedd0609c8920e12df5d7abc53cb" title="Blue component.">b</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#56dbdb47d5f040d9b78ac6a0b8b3a831" title="Alpha (transparency) component.">a</a> / 255.f);
<a name="l00329"></a>00329 glVertex2f(myPoints[i].Position.x + myPoints[i].Normal.x * myOutline, myPoints[i].Position.y + myPoints[i].Normal.y * myOutline);
<a name="l00330"></a>00330 }
<a name="l00331"></a>00331
<a name="l00332"></a>00332 <span class="comment">// Close the shape by duplicating the first point at the end</span>
<a name="l00333"></a>00333 <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a> PointColor = myPoints[1].OutlineCol * <a class="code" href="classsf_1_1Drawable.htm#a2a028c4a975b5ed6d5a560a1c44e0c8" title="Get the color of the object.">GetColor</a>();
<a name="l00334"></a>00334 glColor4f(PointColor.<a class="code" href="classsf_1_1Color.htm#6a5256ca24a4f9f0e0808f6fc23e01e1" title="Red component.">r</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#591daf9c3c55dea830c76c962d6ba1a5" title="Green component.">g</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#6707aedd0609c8920e12df5d7abc53cb" title="Blue component.">b</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#56dbdb47d5f040d9b78ac6a0b8b3a831" title="Alpha (transparency) component.">a</a> / 255.f);
<a name="l00335"></a>00335 glVertex2f(myPoints[1].Position.x, myPoints[1].Position.y);
<a name="l00336"></a>00336 glColor4f(PointColor.<a class="code" href="classsf_1_1Color.htm#6a5256ca24a4f9f0e0808f6fc23e01e1" title="Red component.">r</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#591daf9c3c55dea830c76c962d6ba1a5" title="Green component.">g</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#6707aedd0609c8920e12df5d7abc53cb" title="Blue component.">b</a> / 255.f, PointColor.<a class="code" href="classsf_1_1Color.htm#56dbdb47d5f040d9b78ac6a0b8b3a831" title="Alpha (transparency) component.">a</a> / 255.f);
<a name="l00337"></a>00337 glVertex2f(myPoints[1].Position.x + myPoints[1].Normal.x * myOutline, myPoints[1].Position.y + myPoints[1].Normal.y * myOutline);
<a name="l00338"></a>00338 }
<a name="l00339"></a>00339 glEnd();
<a name="l00340"></a>00340 }
<a name="l00341"></a>00341 }
<a name="l00342"></a>00342
<a name="l00343"></a>00343
<a name="l00347"></a>00347 <span class="keywordtype">void</span> Shape::Compile()
<a name="l00348"></a>00348 {
<a name="l00349"></a>00349 <span class="comment">// Compute the center</span>
<a name="l00350"></a>00350 <span class="keywordtype">float</span> NbPoints = <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(myPoints.size() - 1);
<a name="l00351"></a>00351 <span class="keywordtype">float</span> R = 0, G = 0, B = 0, A = 0;
<a name="l00352"></a>00352 Point Center(<a class="code" href="classsf_1_1Vector2.htm">Vector2f</a>(0, 0), <a class="code" href="classsf_1_1Color.htm" title="Color is an utility class for manipulating 32-bits RGBA colors.">Color</a>(0, 0, 0, 0));
<a name="l00353"></a>00353 <span class="keywordflow">for</span> (std::size_t i = 1; i < myPoints.size(); ++i)
<a name="l00354"></a>00354 {
<a name="l00355"></a>00355 Center.Position += myPoints[i].Position / NbPoints;
<a name="l00356"></a>00356 R += myPoints[i].Col.r / NbPoints;
<a name="l00357"></a>00357 G += myPoints[i].Col.g / NbPoints;
<a name="l00358"></a>00358 B += myPoints[i].Col.b / NbPoints;
<a name="l00359"></a>00359 A += myPoints[i].Col.a / NbPoints;
<a name="l00360"></a>00360 }
<a name="l00361"></a>00361 Center.Col.r = <span class="keyword">static_cast<</span>Uint8<span class="keyword">></span>(R);
<a name="l00362"></a>00362 Center.Col.g = <span class="keyword">static_cast<</span>Uint8<span class="keyword">></span>(G);
<a name="l00363"></a>00363 Center.Col.b = <span class="keyword">static_cast<</span>Uint8<span class="keyword">></span>(B);
<a name="l00364"></a>00364 Center.Col.a = <span class="keyword">static_cast<</span>Uint8<span class="keyword">></span>(A);
<a name="l00365"></a>00365 myPoints[0] = Center;
<a name="l00366"></a>00366
<a name="l00367"></a>00367 <span class="comment">// Compute the outline</span>
<a name="l00368"></a>00368 <span class="keywordflow">for</span> (std::size_t i = 1; i < myPoints.size(); ++i)
<a name="l00369"></a>00369 {
<a name="l00370"></a>00370 <span class="comment">// Get the two segments shared by the current point</span>
<a name="l00371"></a>00371 Point& P0 = (i == 1) ? myPoints[myPoints.size() - 1] : myPoints[i - 1];
<a name="l00372"></a>00372 Point& P1 = myPoints[i];
<a name="l00373"></a>00373 Point& P2 = (i == myPoints.size() - 1) ? myPoints[1] : myPoints[i + 1];
<a name="l00374"></a>00374
<a name="l00375"></a>00375 <span class="comment">// Compute their normal</span>
<a name="l00376"></a>00376 Vector2f Normal1, Normal2;
<a name="l00377"></a>00377 <span class="keywordflow">if</span> (!ComputeNormal(P0.Position, P1.Position, Normal1) || !ComputeNormal(P1.Position, P2.Position, Normal2))
<a name="l00378"></a>00378 <span class="keywordflow">continue</span>;
<a name="l00379"></a>00379
<a name="l00380"></a>00380 <span class="comment">// Add them to get the extrusion direction</span>
<a name="l00381"></a>00381 <span class="keywordtype">float</span> Factor = 1.f + (Normal1.x * Normal2.x + Normal1.y * Normal2.y);
<a name="l00382"></a>00382 P1.Normal = (Normal1 + Normal2) / Factor;
<a name="l00383"></a>00383
<a name="l00384"></a>00384 <span class="comment">// Make sure it points towards the outside of the shape</span>
<a name="l00385"></a>00385 <span class="keywordtype">float</span> Dot = (P1.Position.x - Center.Position.x) * P1.Normal.x + (P1.Position.y - Center.Position.y) * P1.Normal.y;
<a name="l00386"></a>00386 <span class="keywordflow">if</span> (Dot < 0)
<a name="l00387"></a>00387 P1.Normal = -P1.Normal;
<a name="l00388"></a>00388 }
<a name="l00389"></a>00389
<a name="l00390"></a>00390 myIsCompiled = <span class="keyword">true</span>;
<a name="l00391"></a>00391 }
<a name="l00392"></a>00392
<a name="l00393"></a>00393
<a name="l00397"></a>00397 <span class="keywordtype">bool</span> Shape::ComputeNormal(<span class="keyword">const</span> Vector2f& P1, <span class="keyword">const</span> Vector2f& P2, Vector2f& Normal)
<a name="l00398"></a>00398 {
<a name="l00399"></a>00399 Normal.x = P1.y - P2.y;
<a name="l00400"></a>00400 Normal.y = P2.x - P1.x;
<a name="l00401"></a>00401
<a name="l00402"></a>00402 <span class="keywordtype">float</span> Len = sqrt(Normal.x * Normal.x + Normal.y * Normal.y);
<a name="l00403"></a>00403 <span class="keywordflow">if</span> (Len == 0.f)
<a name="l00404"></a>00404 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00405"></a>00405
<a name="l00406"></a>00406 Normal.x /= Len;
<a name="l00407"></a>00407 Normal.y /= Len;
<a name="l00408"></a>00408
<a name="l00409"></a>00409 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00410"></a>00410 }
<a name="l00411"></a>00411
<a name="l00412"></a>00412
<a name="l00416"></a>00416 Shape::Point::Point(<span class="keyword">const</span> Vector2f& Pos, <span class="keyword">const</span> Color& C, <span class="keyword">const</span> Color& OutlineC) :
<a name="l00417"></a>00417 Position (Pos),
<a name="l00418"></a>00418 Normal (0.f, 0.f),
<a name="l00419"></a>00419 Col (C),
<a name="l00420"></a>00420 OutlineCol(OutlineC)
<a name="l00421"></a>00421 {
<a name="l00422"></a>00422
<a name="l00423"></a>00423 }
<a name="l00424"></a>00424
<a name="l00425"></a>00425 } <span class="comment">// namespace sf</span>
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