ZealOS/docs/Apps/Span/SpanDerive.CC.html
TomAwezome 1b75d91002 Fix Mount AHCI Port selection.
Add arg to SATARep to specify drive types to show.
Add checks in AHCIPortInit to verify port signatures, add helper method to get signatures from port.
2021-08-02 16:40:05 -04:00

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<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF1>U0</span><span class=cF0> MyDerivative(</span><span class=cF9>CMathODE</span><span class=cF0> *ode, </span><span class=cF1>F64</span><span class=cF0>, </span><span class=cF9>COrder2D3</span><span class=cF0> *, </span><span class=cF9>COrder2D3</span><span class=cF0> *)
<a name="l2"></a>{
<a name="l3"></a> </span><span class=cF2>//The forces due to springs and drag are</span><span class=cF0>
<a name="l4"></a> </span><span class=cF2>//automatically handled by the</span><span class=cF0>
<a name="l5"></a> </span><span class=cF2>//ode code. We can add new forces</span><span class=cF0>
<a name="l6"></a> </span><span class=cF2>//here.</span><span class=cF0>
<a name="l7"></a> </span><span class=cF9>CTask</span><span class=cF0> *task = ode-&gt;win_task;
<a name="l8"></a> </span><span class=cF1>F64</span><span class=cF0> d, dd;
<a name="l9"></a> </span><span class=cF9>CD3</span><span class=cF0> p, p2;
<a name="l10"></a> MyMass *tmpm1, *tmpm2;
<a name="l11"></a>
<a name="l12"></a> </span><span class=cF2>//Collisions</span><span class=cF0>
<a name="l13"></a> tmpm1 = ode-&gt;next_mass;
<a name="l14"></a> </span><span class=cF1>while</span><span class=cF0> (tmpm1 != &amp;ode-&gt;next_mass)
<a name="l15"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l16"></a> tmpm2 = tmpm1-&gt;next;
<a name="l17"></a> </span><span class=cF1>while</span><span class=cF0> (tmpm2 != &amp;ode-&gt;next_mass)
<a name="l18"></a> {
<a name="l19"></a> </span><span class=cF5>D3Sub</span><span class=cF0>(&amp;p, &amp;tmpm2-&gt;state-&gt;x, &amp;tmpm1-&gt;state-&gt;x);
<a name="l20"></a> dd = </span><span class=cF5>D3NormSqr</span><span class=cF0>(&amp;p);
<a name="l21"></a> </span><span class=cF1>if</span><span class=cF0> (dd &lt;= </span><span class=cF5>Sqr</span><span class=cF7>(</span><span class=cF0>tmpm1-&gt;radius + tmpm2-&gt;radius</span><span class=cF7>)</span><span class=cF0>) </span><span class=cF7>{</span><span class=cF0>
<a name="l22"></a> d = </span><span class=cF5>Sqrt</span><span class=cF0>(dd) + </span><span class=cFE>0</span><span class=cF0>.</span><span class=cFE>0001</span><span class=cF0>;
<a name="l23"></a> dd = </span><span class=cFE>10</span><span class=cF0>.</span><span class=cFE>0</span><span class=cF0> * </span><span class=cF5>Sqr</span><span class=cF0>(</span><span class=cF5>Sqr</span><span class=cF7>(</span><span class=cF5>Sqr</span><span class=cF0>(tmpm1-&gt;radius + tmpm2-&gt;radius) - dd</span><span class=cF7>)</span><span class=cF0>);
<a name="l24"></a> </span><span class=cF5>D3MulEqu</span><span class=cF0>(&amp;p, dd / d);
<a name="l25"></a> </span><span class=cF5>D3AddEqu</span><span class=cF0>(&amp;tmpm2-&gt;DstateDt-&gt;DxDt, &amp;p);
<a name="l26"></a> </span><span class=cF5>D3SubEqu</span><span class=cF0>(&amp;tmpm1-&gt;DstateDt-&gt;DxDt, &amp;p);
<a name="l27"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l28"></a> tmpm2 = tmpm2-&gt;next;
<a name="l29"></a> }
<a name="l30"></a> tmpm1 = tmpm1-&gt;next;
<a name="l31"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l32"></a>
<a name="l33"></a> tmpm1 = ode-&gt;next_mass;
<a name="l34"></a> </span><span class=cF1>while</span><span class=cF0> (tmpm1 != &amp;ode-&gt;next_mass)
<a name="l35"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l36"></a> </span><span class=cF1>if</span><span class=cF0> (!</span><span class=cF7>(</span><span class=cF0>tmpm1-&gt;flags &amp; </span><span class=cF3>MSF_FIXED</span><span class=cF7>)</span><span class=cF0>)
<a name="l37"></a> tmpm1-&gt;DstateDt-&gt;DyDt += </span><span class=cFE>10</span><span class=cF0>.</span><span class=cFE>0</span><span class=cF0> * tmpm1-&gt;mass; </span><span class=cF2>//Gravity</span><span class=cF0>
<a name="l38"></a> tmpm1 = tmpm1-&gt;next;
<a name="l39"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l40"></a>
<a name="l41"></a> </span><span class=cF1>if</span><span class=cF0> (cursor_mass)
<a name="l42"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l43"></a> p2.x = </span><span class=cFB>mouse</span><span class=cF0>.pos.x - task-&gt;pix_left - task-&gt;scroll_x;
<a name="l44"></a> p2.y = </span><span class=cFB>mouse</span><span class=cF0>.pos.y - task-&gt;pix_top - task-&gt;scroll_y;
<a name="l45"></a> p2.z = </span><span class=cFE>0</span><span class=cF0>;
<a name="l46"></a> </span><span class=cF5>D3Sub</span><span class=cF0>(&amp;p, &amp;p2, &amp;cursor_mass-&gt;state-&gt;x);
<a name="l47"></a> d = </span><span class=cFE>10</span><span class=cF0>.</span><span class=cFE>0</span><span class=cF0> * </span><span class=cF5>D3NormSqr</span><span class=cF0>(&amp;p);
<a name="l48"></a> </span><span class=cF5>D3MulEqu</span><span class=cF0>(&amp;p, d);
<a name="l49"></a> </span><span class=cF5>D3AddEqu</span><span class=cF0>(&amp;cursor_mass-&gt;DstateDt-&gt;DxDt, &amp;p);
<a name="l50"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l51"></a>}
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