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<div class="title">vec2.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160; </div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="preprocessor">#include &lt;cmath&gt;</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160; </div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceblit.html">blit</a> {</div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160; </div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160; <span class="keyword">struct </span>Mat3;</div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160; </div>
<div class="line"><a name="l00009"></a><span class="lineno"><a class="line" href="structblit_1_1Vec2.html"> 9</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structblit_1_1Vec2.html">Vec2</a> {</div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160; <span class="keywordtype">float</span> x;</div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160; <span class="keywordtype">float</span> y;</div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160; </div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160; <span class="keyword">explicit</span> constexpr <a class="code" href="structblit_1_1Vec2.html">Vec2</a>(<span class="keyword">const</span> <span class="keywordtype">float</span> x = 0, <span class="keyword">const</span> <span class="keywordtype">float</span> y = 0) : x(x), y(y) {}</div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160; </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; <span class="keyword">inline</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a>&amp; operator-= (<span class="keyword">const</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> &amp;a) { x -= a.x; y -= a.y; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160; <span class="keyword">inline</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a>&amp; operator+= (<span class="keyword">const</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> &amp;a) { x += a.x; y += a.y; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; <span class="keyword">inline</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a>&amp; operator*= (<span class="keyword">const</span> <span class="keywordtype">float</span> a) { x *= a; y *= a; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; <span class="keyword">inline</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a>&amp; operator*= (<span class="keyword">const</span> <a class="code" href="structblit_1_1Mat3.html">Mat3</a> &amp;a) { this-&gt;transform(a); <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; <span class="keyword">inline</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a>&amp; operator*= (<span class="keyword">const</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> &amp;a) { x *= a.x; y *= a.y; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; <span class="keyword">inline</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a>&amp; operator/= (<span class="keyword">const</span> <span class="keywordtype">float</span> a) { x /= a; y /= a; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160; <span class="keyword">inline</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a>&amp; operator/= (<span class="keyword">const</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> &amp;a) { x /= a.x; y /= a.y; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="keywordtype">void</span> transform(<span class="keyword">const</span> <a class="code" href="structblit_1_1Mat3.html">Mat3</a> &amp;m);</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="structblit_1_1Vec2.html#a9f94bbafbadefb83cc085da1748e2eca"> 28</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="structblit_1_1Vec2.html#a9f94bbafbadefb83cc085da1748e2eca">normalize</a>() { <span class="keywordtype">float</span> d = this-&gt;<a class="code" href="structblit_1_1Vec2.html#a60ae08e474ff1866027690ceab7cebe6">length</a>(); x /= d; y /= d; }</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="structblit_1_1Vec2.html#a60ae08e474ff1866027690ceab7cebe6"> 35</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">float</span> <a class="code" href="structblit_1_1Vec2.html#a60ae08e474ff1866027690ceab7cebe6">length</a>() { <span class="keywordflow">return</span> sqrtf(x * x + y * y); }</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; </div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="structblit_1_1Vec2.html#a7f5cc57f5edfe89985f008d1f5d68585"> 43</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">float</span> <a class="code" href="structblit_1_1Vec2.html#a7f5cc57f5edfe89985f008d1f5d68585">cross</a>(<span class="keyword">const</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> &amp;a) { <span class="keywordflow">return</span> x * a.y - y * a.x; }</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; </div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="structblit_1_1Vec2.html#a2ab9c95c17899878686d5ac29ea4a46e"> 51</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">float</span> <a class="code" href="structblit_1_1Vec2.html#a2ab9c95c17899878686d5ac29ea4a46e">cross</a>(<span class="keyword">const</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> *a) { <span class="keywordflow">return</span> x * a-&gt;y - y * a-&gt;x; }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; </div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="structblit_1_1Vec2.html#ad8787eb270a5b48a626901130c1f7c69"> 59</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">float</span> <a class="code" href="structblit_1_1Vec2.html#ad8787eb270a5b48a626901130c1f7c69">dot</a>(<span class="keyword">const</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> &amp;a) { <span class="keywordflow">return</span> (x * a.x) + (y * a.y); }</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; </div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="structblit_1_1Vec2.html#a8d4dd577a3eada6552ff26abb5ca2255"> 67</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">float</span> <a class="code" href="structblit_1_1Vec2.html#a8d4dd577a3eada6552ff26abb5ca2255">dot</a>(<span class="keyword">const</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> *a) { <span class="keywordflow">return</span> (x * a-&gt;x) + (y * a-&gt;y); }</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordtype">void</span> <a class="code" href="structblit_1_1Vec2.html#aecc56fe5bc01d695171ca7ec32874e72">rotate</a>(<span class="keywordtype">float</span> a);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keywordtype">float</span> <a class="code" href="structblit_1_1Vec2.html#ae9f5b1d08a133586e70a8c064e61f57a">angle</a>(<a class="code" href="structblit_1_1Vec2.html">Vec2</a> o);</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordtype">float</span> angle_to(<a class="code" href="structblit_1_1Vec2.html">Vec2</a> o);</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keyword">static</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a> <a class="code" href="structblit_1_1Vec2.html#a9f94bbafbadefb83cc085da1748e2eca">normalize</a>(<a class="code" href="structblit_1_1Vec2.html">Vec2</a> &amp;v) { <span class="keywordtype">float</span> d = v.<a class="code" href="structblit_1_1Vec2.html#a60ae08e474ff1866027690ceab7cebe6">length</a>(); <span class="keywordflow">return</span> <a class="code" href="structblit_1_1Vec2.html">Vec2</a>(v.x /= d, v.y /= d); }</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; };</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keyword">inline</span> Vec2 operator- (Vec2 lhs, <span class="keyword">const</span> Vec2 &amp;rhs) { lhs -= rhs; <span class="keywordflow">return</span> lhs; }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="keyword">inline</span> Vec2 operator- (<span class="keyword">const</span> Vec2 &amp;rhs) { <span class="keywordflow">return</span> Vec2(-rhs.x, -rhs.y); }</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keyword">inline</span> Vec2 operator+ (Vec2 lhs, <span class="keyword">const</span> Vec2 &amp;rhs) { lhs += rhs; <span class="keywordflow">return</span> lhs; }</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keyword">inline</span> Vec2 operator* (Vec2 lhs, <span class="keyword">const</span> <span class="keywordtype">float</span> a) { lhs *= a; <span class="keywordflow">return</span> lhs; }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keyword">inline</span> Vec2 operator* (Vec2 lhs, <span class="keyword">const</span> Mat3 &amp;a) { lhs *= a; <span class="keywordflow">return</span> lhs; }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keyword">inline</span> Vec2 operator* (Vec2 lhs, <span class="keyword">const</span> Vec2 &amp;rhs) { lhs *= rhs; <span class="keywordflow">return</span> lhs; }</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keyword">inline</span> Vec2 operator/ (Vec2 lhs, <span class="keyword">const</span> <span class="keywordtype">float</span> a) { lhs /= a; <span class="keywordflow">return</span> lhs; }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keyword">inline</span> Vec2 operator/ (Vec2 lhs, <span class="keyword">const</span> Vec2 &amp;rhs) { lhs.x /= rhs.x; lhs.y /= rhs.y; <span class="keywordflow">return</span> lhs; }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;}</div>
<div class="ttc" id="anamespaceblit_html"><div class="ttname"><a href="namespaceblit.html">blit</a></div><div class="ttdef"><b>Definition:</b> audio.cpp:10</div></div>
<div class="ttc" id="astructblit_1_1Mat3_html"><div class="ttname"><a href="structblit_1_1Mat3.html">blit::Mat3</a></div><div class="ttdef"><b>Definition:</b> mat3.hpp:6</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html"><div class="ttname"><a href="structblit_1_1Vec2.html">blit::Vec2</a></div><div class="ttdef"><b>Definition:</b> vec2.hpp:9</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html_a2ab9c95c17899878686d5ac29ea4a46e"><div class="ttname"><a href="structblit_1_1Vec2.html#a2ab9c95c17899878686d5ac29ea4a46e">blit::Vec2::cross</a></div><div class="ttdeci">float cross(const Vec2 *a)</div><div class="ttdef"><b>Definition:</b> vec2.hpp:51</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html_a60ae08e474ff1866027690ceab7cebe6"><div class="ttname"><a href="structblit_1_1Vec2.html#a60ae08e474ff1866027690ceab7cebe6">blit::Vec2::length</a></div><div class="ttdeci">float length()</div><div class="ttdef"><b>Definition:</b> vec2.hpp:35</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html_a7f5cc57f5edfe89985f008d1f5d68585"><div class="ttname"><a href="structblit_1_1Vec2.html#a7f5cc57f5edfe89985f008d1f5d68585">blit::Vec2::cross</a></div><div class="ttdeci">float cross(const Vec2 &amp;a)</div><div class="ttdef"><b>Definition:</b> vec2.hpp:43</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html_a8d4dd577a3eada6552ff26abb5ca2255"><div class="ttname"><a href="structblit_1_1Vec2.html#a8d4dd577a3eada6552ff26abb5ca2255">blit::Vec2::dot</a></div><div class="ttdeci">float dot(const Vec2 *a)</div><div class="ttdef"><b>Definition:</b> vec2.hpp:67</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html_a9f94bbafbadefb83cc085da1748e2eca"><div class="ttname"><a href="structblit_1_1Vec2.html#a9f94bbafbadefb83cc085da1748e2eca">blit::Vec2::normalize</a></div><div class="ttdeci">void normalize()</div><div class="ttdef"><b>Definition:</b> vec2.hpp:28</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html_ad8787eb270a5b48a626901130c1f7c69"><div class="ttname"><a href="structblit_1_1Vec2.html#ad8787eb270a5b48a626901130c1f7c69">blit::Vec2::dot</a></div><div class="ttdeci">float dot(const Vec2 &amp;a)</div><div class="ttdef"><b>Definition:</b> vec2.hpp:59</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html_ae9f5b1d08a133586e70a8c064e61f57a"><div class="ttname"><a href="structblit_1_1Vec2.html#ae9f5b1d08a133586e70a8c064e61f57a">blit::Vec2::angle</a></div><div class="ttdeci">float angle(Vec2 o)</div><div class="ttdef"><b>Definition:</b> vec2.cpp:26</div></div>
<div class="ttc" id="astructblit_1_1Vec2_html_aecc56fe5bc01d695171ca7ec32874e72"><div class="ttname"><a href="structblit_1_1Vec2.html#aecc56fe5bc01d695171ca7ec32874e72">blit::Vec2::rotate</a></div><div class="ttdeci">void rotate(float a)</div><div class="ttdef"><b>Definition:</b> vec2.cpp:10</div></div>
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