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42 lines
1.0 KiB
42 lines
1.0 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: |
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// |
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// $NoKeywords: $ |
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//=============================================================================// |
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#ifndef ROPE_HELPERS_H |
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#define ROPE_HELPERS_H |
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#ifdef _WIN32 |
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#pragma once |
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#endif |
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#include "mathlib/vector.h" |
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// |
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// This function can help you choose starting conditions for your rope. It is fairly |
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// expensive (slightly less than 0.5ms for a 10-node rope), but it's within reason for the |
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// frequency we create ropes at. |
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// |
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// Input: |
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// - rope endpoints |
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// - the number of nodes the client will be simulating (CRopeKeyframe::m_nSegments) |
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// - how low you want the rope to hang (below the lowest of the two endpoints) |
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// |
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// Output: |
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// - pOutputLength = length of the rope |
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// - pOutputSlack = slack you should set to produce the desired hang |
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// |
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void CalcRopeStartingConditions( |
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const Vector &vStartPos, |
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const Vector &vEndPos, |
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int const nNodes, |
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float const desiredHang, |
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float *pOutputLength, |
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float *pOutputSlack |
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); |
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#endif // ROPE_HELPERS_H
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