chipmunk-rs 0.1.1

Rust bindings to the Chipmunk2D physics engine.
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<div class="header">
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<a href="#define-members">Macros</a> &#124;
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<table class="memberdecls">
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Macros</h2></td></tr>
<tr class="memitem:ga6d034fec4d7962b6f20f9e243527c560"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga6d034fec4d7962b6f20f9e243527c560"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga6d034fec4d7962b6f20f9e243527c560">CP_BUFFER_BYTES</a>&#160;&#160;&#160;(32*1024)</td></tr>
<tr class="memdesc:ga6d034fec4d7962b6f20f9e243527c560"><td class="mdescLeft">&#160;</td><td class="mdescRight">Allocated size for various Chipmunk buffers. <br/></td></tr>
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<tr class="memitem:gac88bab87ecc7db6cc222679bf6082e9b"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gac88bab87ecc7db6cc222679bf6082e9b"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#gac88bab87ecc7db6cc222679bf6082e9b">cpcalloc</a>&#160;&#160;&#160;calloc</td></tr>
<tr class="memdesc:gac88bab87ecc7db6cc222679bf6082e9b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Chipmunk calloc() alias. <br/></td></tr>
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<tr class="memitem:gab3544b888840ed34e49bb0559d6849a8"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gab3544b888840ed34e49bb0559d6849a8"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#gab3544b888840ed34e49bb0559d6849a8">cprealloc</a>&#160;&#160;&#160;realloc</td></tr>
<tr class="memdesc:gab3544b888840ed34e49bb0559d6849a8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Chipmunk realloc() alias. <br/></td></tr>
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<tr class="memitem:ga14627263deb67605201281bac734eb04"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga14627263deb67605201281bac734eb04"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga14627263deb67605201281bac734eb04">cpfree</a>&#160;&#160;&#160;free</td></tr>
<tr class="memdesc:ga14627263deb67605201281bac734eb04"><td class="mdescLeft">&#160;</td><td class="mdescRight">Chipmunk free() alias. <br/></td></tr>
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<tr class="memitem:ga9abe29a1fe6d1f2041e95f2fb2e2ce1c"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga9abe29a1fe6d1f2041e95f2fb2e2ce1c">CP_CONVEX_HULL</a>(__count__, __verts__, __count_var__, __verts_var__)</td></tr>
<tr class="memdesc:ga9abe29a1fe6d1f2041e95f2fb2e2ce1c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Convenience macro to work with cpConvexHull.  <a href="#ga9abe29a1fe6d1f2041e95f2fb2e2ce1c">More...</a><br/></td></tr>
<tr class="separator:ga9abe29a1fe6d1f2041e95f2fb2e2ce1c"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaf1dfe63f43b3dd42e47f37f16ae2dfe4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#gaf1dfe63f43b3dd42e47f37f16ae2dfe4">cpMomentForCircle</a> (<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> m, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> r1, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> r2, <a class="el" href="structcp_vect.html">cpVect</a> offset)</td></tr>
<tr class="memdesc:gaf1dfe63f43b3dd42e47f37f16ae2dfe4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the moment of inertia for a circle.  <a href="#gaf1dfe63f43b3dd42e47f37f16ae2dfe4">More...</a><br/></td></tr>
<tr class="separator:gaf1dfe63f43b3dd42e47f37f16ae2dfe4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga9293a100703445eed36e8673eefe42a1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga9293a100703445eed36e8673eefe42a1">cpAreaForCircle</a> (<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> r1, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> r2)</td></tr>
<tr class="memdesc:ga9293a100703445eed36e8673eefe42a1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate area of a hollow circle.  <a href="#ga9293a100703445eed36e8673eefe42a1">More...</a><br/></td></tr>
<tr class="separator:ga9293a100703445eed36e8673eefe42a1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga1df4d84f2b6ab3cb74d790b55e6a16d4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga1df4d84f2b6ab3cb74d790b55e6a16d4">cpMomentForSegment</a> (<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> m, <a class="el" href="structcp_vect.html">cpVect</a> a, <a class="el" href="structcp_vect.html">cpVect</a> b, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> radius)</td></tr>
<tr class="memdesc:ga1df4d84f2b6ab3cb74d790b55e6a16d4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the moment of inertia for a line segment.  <a href="#ga1df4d84f2b6ab3cb74d790b55e6a16d4">More...</a><br/></td></tr>
<tr class="separator:ga1df4d84f2b6ab3cb74d790b55e6a16d4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga5749ef4558e38005cea36d5eac560ca5"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga5749ef4558e38005cea36d5eac560ca5"></a>
<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga5749ef4558e38005cea36d5eac560ca5">cpAreaForSegment</a> (<a class="el" href="structcp_vect.html">cpVect</a> a, <a class="el" href="structcp_vect.html">cpVect</a> b, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> radius)</td></tr>
<tr class="memdesc:ga5749ef4558e38005cea36d5eac560ca5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the area of a fattened (capsule shaped) line segment. <br/></td></tr>
<tr class="separator:ga5749ef4558e38005cea36d5eac560ca5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga07f110041cb818aa6c19e41623f5054e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga07f110041cb818aa6c19e41623f5054e"></a>
<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga07f110041cb818aa6c19e41623f5054e">cpMomentForPoly</a> (<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> m, int count, const <a class="el" href="structcp_vect.html">cpVect</a> *verts, <a class="el" href="structcp_vect.html">cpVect</a> offset, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> radius)</td></tr>
<tr class="memdesc:ga07f110041cb818aa6c19e41623f5054e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the moment of inertia for a solid polygon shape assuming it's center of gravity is at it's centroid. The offset is added to each vertex. <br/></td></tr>
<tr class="separator:ga07f110041cb818aa6c19e41623f5054e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga916a74d85ac37e3f5577adddad05a0bc"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga916a74d85ac37e3f5577adddad05a0bc">cpAreaForPoly</a> (const int count, const <a class="el" href="structcp_vect.html">cpVect</a> *verts, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> radius)</td></tr>
<tr class="memdesc:ga916a74d85ac37e3f5577adddad05a0bc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the signed area of a polygon.  <a href="#ga916a74d85ac37e3f5577adddad05a0bc">More...</a><br/></td></tr>
<tr class="separator:ga916a74d85ac37e3f5577adddad05a0bc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaaeaa99c27ff452c3bb957cf3d82d4f64"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gaaeaa99c27ff452c3bb957cf3d82d4f64"></a>
<a class="el" href="structcp_vect.html">cpVect</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#gaaeaa99c27ff452c3bb957cf3d82d4f64">cpCentroidForPoly</a> (const int count, const <a class="el" href="structcp_vect.html">cpVect</a> *verts)</td></tr>
<tr class="memdesc:gaaeaa99c27ff452c3bb957cf3d82d4f64"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the natural centroid of a polygon. <br/></td></tr>
<tr class="separator:gaaeaa99c27ff452c3bb957cf3d82d4f64"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf7b38a68ad64e02f7542eaab640e6743"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gaf7b38a68ad64e02f7542eaab640e6743"></a>
<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#gaf7b38a68ad64e02f7542eaab640e6743">cpMomentForBox</a> (<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> m, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> width, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> height)</td></tr>
<tr class="memdesc:gaf7b38a68ad64e02f7542eaab640e6743"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the moment of inertia for a solid box. <br/></td></tr>
<tr class="separator:gaf7b38a68ad64e02f7542eaab640e6743"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga435b78dde186a991f207df58d88e88d2"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga435b78dde186a991f207df58d88e88d2"></a>
<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga435b78dde186a991f207df58d88e88d2">cpMomentForBox2</a> (<a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> m, <a class="el" href="structcp_b_b.html">cpBB</a> box)</td></tr>
<tr class="memdesc:ga435b78dde186a991f207df58d88e88d2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the moment of inertia for a solid box. <br/></td></tr>
<tr class="separator:ga435b78dde186a991f207df58d88e88d2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga4468d521319fa699354b8d0e1d9532fe"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga4468d521319fa699354b8d0e1d9532fe">cpConvexHull</a> (int count, const <a class="el" href="structcp_vect.html">cpVect</a> *verts, <a class="el" href="structcp_vect.html">cpVect</a> *result, int *first, <a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> tol)</td></tr>
<tr class="memdesc:ga4468d521319fa699354b8d0e1d9532fe"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the convex hull of a given set of points.  <a href="#ga4468d521319fa699354b8d0e1d9532fe">More...</a><br/></td></tr>
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static <a class="el" href="structcp_vect.html">cpVect</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#ga9511599966ddc56c0fe81c3a943db25e">cpClosetPointOnSegment</a> (const <a class="el" href="structcp_vect.html">cpVect</a> p, const <a class="el" href="structcp_vect.html">cpVect</a> a, const <a class="el" href="structcp_vect.html">cpVect</a> b)</td></tr>
<tr class="memdesc:ga9511599966ddc56c0fe81c3a943db25e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the closest point on the line segment ab, to the point p. <br/></td></tr>
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Variables</h2></td></tr>
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const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__misc.html#gacecd153caab362b7e2e33b4f37a0fe55">cpVersionString</a></td></tr>
<tr class="memdesc:gacecd153caab362b7e2e33b4f37a0fe55"><td class="mdescLeft">&#160;</td><td class="mdescRight">Version string. <br/></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Macro Definition Documentation</h2>
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          <td class="memname">#define CP_CONVEX_HULL</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">__count__, </td>
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          <td class="paramtype">&#160;</td>
          <td class="paramname">__verts__, </td>
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          <td class="paramtype">&#160;</td>
          <td class="paramname">__count_var__, </td>
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          <td class="paramname">__verts_var__&#160;</td>
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<b>Value:</b><div class="fragment"><div class="line"><a class="code" href="structcp_vect.html">cpVect</a> *__verts_var__ = (<a class="code" href="structcp_vect.html">cpVect</a> *)alloca(__count__*<span class="keyword">sizeof</span>(<a class="code" href="structcp_vect.html">cpVect</a>)); \</div>
<div class="line">int __count_var__ = <a class="code" href="group__misc.html#ga4468d521319fa699354b8d0e1d9532fe" title="Calculate the convex hull of a given set of points.">cpConvexHull</a>(__count__, __verts__, __verts_var__, NULL, 0.0); \</div>
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<p>Convenience macro to work with cpConvexHull. </p>
<p><code>count</code> and <code>verts</code> is the input array passed to <a class="el" href="group__misc.html#ga4468d521319fa699354b8d0e1d9532fe" title="Calculate the convex hull of a given set of points.">cpConvexHull()</a>. <code>count_var</code> and <code>verts_var</code> are the names of the variables the macro creates to store the result. The output vertex array is allocated on the stack using alloca() so it will be freed automatically, but cannot be returned from the current scope. </p>

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<h2 class="groupheader">Function Documentation</h2>
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          <td class="memname"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> cpAreaForCircle </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td>
          <td class="paramname"><em>r1</em>, </td>
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          <td class="paramtype"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td>
          <td class="paramname"><em>r2</em>&#160;</td>
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<p>Calculate area of a hollow circle. </p>
<p><code>r1</code> and <code>r2</code> are the inner and outer diameters. A solid circle has an inner diameter of 0. </p>

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          <td class="memname"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> cpAreaForPoly </td>
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          <td class="paramtype">const int&#160;</td>
          <td class="paramname"><em>count</em>, </td>
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          <td class="paramtype">const <a class="el" href="structcp_vect.html">cpVect</a> *&#160;</td>
          <td class="paramname"><em>verts</em>, </td>
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          <td class="paramtype"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td>
          <td class="paramname"><em>radius</em>&#160;</td>
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<p>Calculate the signed area of a polygon. </p>
<p>A Clockwise winding gives positive area. This is probably backwards from what you expect, but matches Chipmunk's the winding for poly shapes. </p>

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          <td class="memname">int cpConvexHull </td>
          <td>(</td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>count</em>, </td>
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          <td class="paramtype">const <a class="el" href="structcp_vect.html">cpVect</a> *&#160;</td>
          <td class="paramname"><em>verts</em>, </td>
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          <td></td>
          <td class="paramtype"><a class="el" href="structcp_vect.html">cpVect</a> *&#160;</td>
          <td class="paramname"><em>result</em>, </td>
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          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>first</em>, </td>
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          <td class="paramname"><em>tol</em>&#160;</td>
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<p>Calculate the convex hull of a given set of points. </p>
<p>Returns the count of points in the hull. <code>result</code> must be a pointer to a <code><a class="el" href="structcp_vect.html">cpVect</a></code> array with at least <code>count</code> elements. If <code>verts</code> == <code>result</code>, then <code>verts</code> will be reduced inplace. <code>first</code> is an optional pointer to an integer to store where the first vertex in the hull came from (i.e. verts[first] == result[0]) <code>tol</code> is the allowed amount to shrink the hull when simplifying it. A tolerance of 0.0 creates an exact hull. </p>

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          <td class="memname"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> cpMomentForCircle </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td>
          <td class="paramname"><em>m</em>, </td>
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          <td class="paramname"><em>r1</em>, </td>
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<p>Calculate the moment of inertia for a circle. </p>
<p><code>r1</code> and <code>r2</code> are the inner and outer diameters. A solid circle has an inner diameter of 0. </p>

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          <td class="memname"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a> cpMomentForSegment </td>
          <td>(</td>
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          <td class="paramname"><em>b</em>, </td>
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          <td class="paramtype"><a class="el" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3">cpFloat</a>&#160;</td>
          <td class="paramname"><em>radius</em>&#160;</td>
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<p>Calculate the moment of inertia for a line segment. </p>
<p>Beveling radius is not supported. </p>

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