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+<div class="title">Trail.cpp</div> </div>
+</div><!--header-->
+<div class="contents">
+<a href="_trail_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/* Project Starshatter 4.5</span></div>
+<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> Destroyer Studios LLC</span></div>
+<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> Copyright © 1997-2004. All Rights Reserved.</span></div>
+<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"></span></div>
+<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> SUBSYSTEM: Stars.exe</span></div>
+<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> FILE: Trail.cpp</span></div>
+<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> AUTHOR: John DiCamillo</span></div>
+<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"></span></div>
+<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"></span></div>
+<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> OVERVIEW</span></div>
+<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> ========</span></div>
+<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> Missile Trail representation class</span></div>
+<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment">*/</span></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="preprocessor">#include &quot;<a class="code" href="_mem_debug_8h.html">MemDebug.h</a>&quot;</span></div>
+<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_trail_8h.html">Trail.h</a>&quot;</span></div>
+<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_weapon_8h.html">Weapon.h</a>&quot;</span></div>
+<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_sim_8h.html">Sim.h</a>&quot;</span></div>
+<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div>
+<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_game_8h.html">Game.h</a>&quot;</span></div>
+<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_light_8h.html">Light.h</a>&quot;</span></div>
+<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_bitmap_8h.html">Bitmap.h</a>&quot;</span></div>
+<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_data_loader_8h.html">DataLoader.h</a>&quot;</span></div>
+<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_sound_8h.html">Sound.h</a>&quot;</span></div>
+<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div>
+<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="comment">// +--------------------------------------------------------------------+</span></div>
+<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;</div>
+<div class="line"><a name="l00028"></a><span class="lineno"><a class="code" href="class_trail.html#ab2ed02e75236789f55094b4c29796696"> 28</a></span>&#160;<a class="code" href="class_trail.html#ab2ed02e75236789f55094b4c29796696">Trail::Trail</a>(<a class="code" href="class_bitmap.html">Bitmap</a>* tex, <span class="keywordtype">int</span> n)</div>
+<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;: ntrail(0), length0(0), length1(0), texture(tex), maxtrail(n), dim(1)</div>
+<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;{</div>
+<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <a class="code" href="class_graphic.html#a42a8b66f57ecc1735140a9b7d9a26714">trans</a> = <span class="keyword">true</span>;</div>
+<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <a class="code" href="class_graphic.html#a3a427eeadbeeacedc27c09a07c30769e">luminous</a> = <span class="keyword">true</span>;</div>
+<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
+<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <a class="code" href="class_trail.html#a568eec3bdda0eedc8b8c33929d28b9fd">mtl</a>.<a class="code" href="struct_material.html#a05b646c99f9ab5df7092109916b506a6">Kd</a> = <a class="code" href="class_color.html#a85c6885383e69ed18d7c7f633c7ea110">Color::White</a>;</div>
+<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <a class="code" href="class_trail.html#a568eec3bdda0eedc8b8c33929d28b9fd">mtl</a>.<a class="code" href="struct_material.html#a1d848bfac5c7f17f91557fd23c44b101">tex_diffuse</a> = <a class="code" href="class_trail.html#ab7c42abf957f746127921ea7e5d7e65a">texture</a>;</div>
+<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <a class="code" href="class_trail.html#a568eec3bdda0eedc8b8c33929d28b9fd">mtl</a>.<a class="code" href="struct_material.html#a9fa2bcd7f6ed2b43050629b55b87f030">tex_emissive</a> = <a class="code" href="class_trail.html#ab7c42abf957f746127921ea7e5d7e65a">texture</a>;</div>
+<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <a class="code" href="class_trail.html#a568eec3bdda0eedc8b8c33929d28b9fd">mtl</a>.<a class="code" href="struct_material.html#a53984e10e1834eceb1b74d18a0f01021">blend</a> = <a class="code" href="class_video.html#ad7421cf3d95ed31b79e13adbc1ab4149a6ac87a9af8134bbe16b0809d3895210e">Video::BLEND_ADDITIVE</a>;</div>
+<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <a class="code" href="class_trail.html#a568eec3bdda0eedc8b8c33929d28b9fd">mtl</a>.<a class="code" href="struct_material.html#a9e0108950d9f5491378521d66ac62cce">luminous</a> = <span class="keyword">true</span>;</div>
+<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;</div>
+<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="class_trail.html#a0dd0e83c336b41d11ca109805dfe654a">maxtrail</a> &lt; 4) <a class="code" href="class_trail.html#a0dd0e83c336b41d11ca109805dfe654a">maxtrail</a> = 512;</div>
+<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a> = <span class="keyword">new</span>(__FILE__,__LINE__) <a class="code" href="struct_point.html">Point</a>[<a class="code" href="class_trail.html#a0dd0e83c336b41d11ca109805dfe654a">maxtrail</a>];</div>
+<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a> = <span class="keyword">new</span>(__FILE__,__LINE__) <a class="code" href="struct_vertex_set.html">VertexSet</a>(<a class="code" href="class_trail.html#a0dd0e83c336b41d11ca109805dfe654a">maxtrail</a>*2);</div>
+<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#a77dc63334e53ad7bf54675637a5688ee">Clear</a>();</div>
+<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#a4942a5af779580847cfe7036b4ba5c3f">nverts</a> = 0;</div>
+<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;</div>
+<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="class_trail.html#a0dd0e83c336b41d11ca109805dfe654a">maxtrail</a>*2; i++) {</div>
+<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#aba2d775c75be70d0d821281d2f02d788">diffuse</a>[i] = D3DCOLOR_RGBA(255,255,255,255);</div>
+<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#a2bf3f3497ac0ec9369021a36bd6f50a8">specular</a>[i] = D3DCOLOR_RGBA( 0, 0, 0,255);</div>
+<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#af62b2db3dc8405d7061691a67339604d">tu</a>[i] = 0.0f;</div>
+<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#a49d11e5c7d4b3026a5ee92052ff65a9f">tv</a>[i] = (i &amp; 1) ? 1.0f : 0.0f;</div>
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+<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div>
+<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="class_trail.html#a0dd0e83c336b41d11ca109805dfe654a">maxtrail</a>; i++) {</div>
+<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <a class="code" href="class_trail.html#af0cdbd1485142592272d6ee001e0051b">polys</a>[i].<a class="code" href="struct_poly.html#a17e3c99c231b235ee402eb5ea6982d1b">vertex_set</a> = <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>;</div>
+<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <a class="code" href="class_trail.html#af0cdbd1485142592272d6ee001e0051b">polys</a>[i].<a class="code" href="struct_poly.html#a7c282f5bb936e91855269f710bcbcff7">nverts</a> = 4;</div>
+<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <a class="code" href="class_trail.html#af0cdbd1485142592272d6ee001e0051b">polys</a>[i].<a class="code" href="struct_poly.html#adac6649f5a8a049c8da2c0b34b022bd1">material</a> = &amp;<a class="code" href="class_trail.html#a568eec3bdda0eedc8b8c33929d28b9fd">mtl</a>;</div>
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+<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <a class="code" href="class_trail.html#a4f16ad6ca35063b608a6d5037e192338">nverts</a> = 0;</div>
+<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <a class="code" href="class_trail.html#a3dd5e9e5b8eaf75dc83582e1ab957c18">width</a> = 6;</div>
+<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <a class="code" href="class_trail.html#a55dfb3d71388d714fde95ba722c81b29">length</a> = 0;</div>
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+<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div>
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+<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;}</div>
+<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;</div>
+<div class="line"><a name="l00070"></a><span class="lineno"><a class="code" href="class_trail.html#a7b1e7ac4ba01eaf865dbcc15f99af913"> 70</a></span>&#160;<a class="code" href="class_trail.html#a7b1e7ac4ba01eaf865dbcc15f99af913">Trail::~Trail</a>()</div>
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+<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keyword">delete</span> [] <a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>;</div>
+<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keyword">delete</span> [] <a class="code" href="class_trail.html#af0cdbd1485142592272d6ee001e0051b">polys</a>;</div>
+<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keyword">delete</span> <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>;</div>
+<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;}</div>
+<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div>
+<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;<span class="keywordtype">void</span></div>
+<div class="line"><a name="l00078"></a><span class="lineno"><a class="code" href="class_trail.html#ac3958c4337dc5421904460ad84a3c007"> 78</a></span>&#160;<a class="code" href="class_trail.html#ac3958c4337dc5421904460ad84a3c007">Trail::UpdateVerts</a>(<span class="keyword">const</span> <a class="code" href="struct_point.html">Point</a>&amp; cam_pos)</div>
+<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;{</div>
+<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a> &lt; 2) <span class="keywordflow">return</span>;</div>
+<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;</div>
+<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keywordtype">int</span> bright = 255 - <a class="code" href="class_trail.html#a40880cb9a88f374e025a6301f570632e">dim</a>*<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a>;</div>
+<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;</div>
+<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <a class="code" href="struct_point.html">Point</a> head = <a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[1] + <a class="code" href="class_graphic.html#a9ce2c536ee7744836ddde006907df8e7">loc</a>;</div>
+<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <a class="code" href="struct_point.html">Point</a> tail = <a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[0] + <a class="code" href="class_graphic.html#a9ce2c536ee7744836ddde006907df8e7">loc</a>;</div>
+<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <a class="code" href="struct_point.html">Point</a> vcam = cam_pos - head;</div>
+<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <a class="code" href="struct_point.html">Point</a> vtmp = vcam.<a class="code" href="struct_point.html#ae600bcc9fe480e782a05fade3b78f8c0">cross</a>(head-tail);</div>
+<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; vtmp.<a class="code" href="struct_point.html#a6efd403e2a6c0aa686e278d244d5e525">Normalize</a>();</div>
+<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <a class="code" href="struct_point.html">Point</a> vlat = vtmp * (<a class="code" href="class_trail.html#a3dd5e9e5b8eaf75dc83582e1ab957c18">width</a> + (0.1 * <a class="code" href="class_trail.html#a3dd5e9e5b8eaf75dc83582e1ab957c18">width</a> * <a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a>));</div>
+<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div>
+<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#ace261b0101f85d89b26e2fbfec6a8c28">loc</a>[0] = tail - vlat;</div>
+<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#ace261b0101f85d89b26e2fbfec6a8c28">loc</a>[1] = tail + vlat;</div>
+<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#aba2d775c75be70d0d821281d2f02d788">diffuse</a>[0] = 0;</div>
+<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#aba2d775c75be70d0d821281d2f02d788">diffuse</a>[1] = 0;</div>
+<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div>
+<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; ntrail-1; i++) {</div>
+<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; bright+=<a class="code" href="class_trail.html#a40880cb9a88f374e025a6301f570632e">dim</a>;</div>
+<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <a class="code" href="struct_point.html">Point</a> head = <a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[i+1] + <a class="code" href="class_graphic.html#a9ce2c536ee7744836ddde006907df8e7">loc</a>;</div>
+<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <a class="code" href="struct_point.html">Point</a> tail = <a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[i] + <a class="code" href="class_graphic.html#a9ce2c536ee7744836ddde006907df8e7">loc</a>;</div>
+<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <a class="code" href="struct_point.html">Point</a> vcam = cam_pos - head;</div>
+<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <a class="code" href="struct_point.html">Point</a> vtmp = vcam.<a class="code" href="struct_point.html#ae600bcc9fe480e782a05fade3b78f8c0">cross</a>(head-tail);</div>
+<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; vtmp.<a class="code" href="struct_point.html#a6efd403e2a6c0aa686e278d244d5e525">Normalize</a>();</div>
+<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; </div>
+<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordtype">float</span> trail_width = (float) (<a class="code" href="class_trail.html#a3dd5e9e5b8eaf75dc83582e1ab957c18">width</a> + (ntrail-i) * <a class="code" href="class_trail.html#a3dd5e9e5b8eaf75dc83582e1ab957c18">width</a> * 0.1);</div>
+<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keywordflow">if</span> (i == ntrail-2) trail_width = (float) (<a class="code" href="class_trail.html#a3dd5e9e5b8eaf75dc83582e1ab957c18">width</a> * 0.7);</div>
+<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <a class="code" href="struct_point.html">Point</a> vlat = vtmp * trail_width;</div>
+<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div>
+<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#ace261b0101f85d89b26e2fbfec6a8c28">loc</a>[2*i+2] = head - vlat;</div>
+<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#ace261b0101f85d89b26e2fbfec6a8c28">loc</a>[2*i+3] = head + vlat;</div>
+<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;</div>
+<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">if</span> (bright &lt;= 0) {</div>
+<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#aba2d775c75be70d0d821281d2f02d788">diffuse</a>[2*i+2] = 0;</div>
+<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#aba2d775c75be70d0d821281d2f02d788">diffuse</a>[2*i+3] = 0;</div>
+<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; }</div>
+<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">else</span> {</div>
+<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#aba2d775c75be70d0d821281d2f02d788">diffuse</a>[2*i+2] = D3DCOLOR_RGBA(bright,bright,bright,bright);</div>
+<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>-&gt;<a class="code" href="struct_vertex_set.html#aba2d775c75be70d0d821281d2f02d788">diffuse</a>[2*i+3] = D3DCOLOR_RGBA(bright,bright,bright,bright);</div>
+<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; }</div>
+<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; }</div>
+<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;}</div>
+<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;</div>
+<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;<span class="keywordtype">void</span></div>
+<div class="line"><a name="l00123"></a><span class="lineno"><a class="code" href="class_trail.html#a0f8fae51c90678432ead5d146d584637"> 123</a></span>&#160;<a class="code" href="class_trail.html#a0f8fae51c90678432ead5d146d584637">Trail::Render</a>(<a class="code" href="class_video.html">Video</a>* video, DWORD flags)</div>
+<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;{</div>
+<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="class_trail.html#a8f3e290383b9c62d12ed3829d594a33d">npolys</a>) <span class="keywordflow">return</span>;</div>
+<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;</div>
+<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordflow">if</span> ((flags &amp; <a class="code" href="class_graphic.html#a9916b73164fa91ae51d5d1964a19923ba29558b48b11569eddf097dde625072af">RENDER_ADDITIVE</a>) == 0)</div>
+<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordflow">return</span>;</div>
+<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div>
+<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keywordflow">if</span> (video &amp;&amp; <a class="code" href="class_graphic.html#a9c6002a0b627353298e301a8cac2f908">life</a>) {</div>
+<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keyword">const</span> <a class="code" href="class_camera.html">Camera</a>* cam = video-&gt;<a class="code" href="class_video.html#a79f6d2978486df7397d2e0c36a1280e0">GetCamera</a>();</div>
+<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;</div>
+<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keywordflow">if</span> (cam)</div>
+<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <a class="code" href="class_trail.html#ac3958c4337dc5421904460ad84a3c007">UpdateVerts</a>(cam-&gt;<a class="code" href="class_camera.html#a2a54ce5f1212212653acafa59809ce49">Pos</a>());</div>
+<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;</div>
+<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; video-&gt;<a class="code" href="class_video.html#ac7440fa0a5bd02988f87142ed5fc17f9">DrawPolys</a>(<a class="code" href="class_trail.html#a8f3e290383b9c62d12ed3829d594a33d">npolys</a>, <a class="code" href="class_trail.html#af0cdbd1485142592272d6ee001e0051b">polys</a>);</div>
+<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; }</div>
+<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;}</div>
+<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160;</div>
+<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;<span class="keywordtype">void</span></div>
+<div class="line"><a name="l00141"></a><span class="lineno"><a class="code" href="class_trail.html#adb3cc66dce3422f3e0b905bf38541ff2"> 141</a></span>&#160;<a class="code" href="class_trail.html#adb3cc66dce3422f3e0b905bf38541ff2">Trail::AddPoint</a>(<span class="keyword">const</span> <a class="code" href="struct_point.html">Point</a>&amp; v)</div>
+<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;{</div>
+<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a> &gt;= <a class="code" href="class_trail.html#a0dd0e83c336b41d11ca109805dfe654a">maxtrail</a>-1) <span class="keywordflow">return</span>;</div>
+<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160;</div>
+<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordtype">double</span> real_time = <a class="code" href="class_game.html#a321790057c657d52f3585f883cdbc507">Game::RealTime</a>() / 1000.0;</div>
+<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;</div>
+<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a> == 0) {</div>
+<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <a class="code" href="class_graphic.html#a375d4c28b1feb40e12fb5a7cbba6a59c">radius</a> = 1000;</div>
+<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; }</div>
+<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">else</span> {</div>
+<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <a class="code" href="class_graphic.html#a375d4c28b1feb40e12fb5a7cbba6a59c">radius</a> = (float) <a class="code" href="struct_point.html">Point</a>(v-<a class="code" href="class_graphic.html#a9ce2c536ee7744836ddde006907df8e7">loc</a>).<a class="code" href="struct_point.html#a8ebcce847b8c214b7351904ce60f5518">length</a>();</div>
+<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; }</div>
+<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;</div>
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+<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a> &gt; 1 &amp;&amp; real_time - <a class="code" href="class_trail.html#aea3673578a0851ce5909b4d54c6a8831">last_point_time</a> &lt; 0.05) {</div>
+<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a>-1] = v;</div>
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+<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;</div>
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+<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <a class="code" href="class_trail.html#aea3673578a0851ce5909b4d54c6a8831">last_point_time</a> = real_time;</div>
+<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a>++] = v;</div>
+<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;</div>
+<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <a class="code" href="class_trail.html#a4f16ad6ca35063b608a6d5037e192338">nverts</a> += 2;</div>
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+<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160;</div>
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+<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <a class="code" href="class_trail.html#a06d7c2aeb4364cc2151b62220ac6c636">length1</a> = <a class="code" href="class_trail.html#a2ea871efe5cc9b36a5db5d15cd5742f1">length0</a> + (<a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a>-1]-<a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[<a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a>-2]).<a class="code" href="class_trail.html#a55dfb3d71388d714fde95ba722c81b29">length</a>();</div>
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+<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <a class="code" href="class_trail.html#af0cdbd1485142592272d6ee001e0051b">polys</a>[<a class="code" href="class_trail.html#a8f3e290383b9c62d12ed3829d594a33d">npolys</a>].<a class="code" href="struct_poly.html#a17e3c99c231b235ee402eb5ea6982d1b">vertex_set</a> = <a class="code" href="class_trail.html#a73c33d85200685ffe0cd7a5d5ba66970">verts</a>;</div>
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+<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordtype">float</span> tu1 = (float) <a class="code" href="class_trail.html#a06d7c2aeb4364cc2151b62220ac6c636">length1</a> / 250.0f;</div>
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+<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; }</div>
+<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; }</div>
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+<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;<span class="keywordtype">double</span></div>
+<div class="line"><a name="l00190"></a><span class="lineno"><a class="code" href="class_trail.html#af557b6f91726af0b552f3988d67912da"> 190</a></span>&#160;<a class="code" href="class_trail.html#af557b6f91726af0b552f3988d67912da">Trail::AverageLength</a>()</div>
+<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;{</div>
+<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <span class="keywordtype">double</span> avg = 0;</div>
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+<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a>-1; i++)</div>
+<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; avg += (<a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[i+1]-<a class="code" href="class_trail.html#a41b8b28e9f5b88b8b73d2acc89c16be9">trail</a>[i]).length();</div>
+<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; avg /= <a class="code" href="class_trail.html#afc3727f527a9452bd83ab512992b754f">ntrail</a>;</div>
+<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;</div>
+<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; <span class="keywordflow">return</span> avg;</div>
+<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;}</div>
+<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160;</div>
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+ <li class="navelem"><a class="el" href="dir_ea1b58c809a5070716d7c602998a95b0.html">Stars45</a></li><li class="navelem"><a class="el" href="_trail_8cpp.html">Trail.cpp</a></li>
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