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45 lines
1.7 KiB
C
45 lines
1.7 KiB
C
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//=============================================================================//
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#ifndef PERFORMANCE_H
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#define PERFORMANCE_H
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#ifdef _WIN32
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#pragma once
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#endif
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// Don't ever change these values, or face all kinds of subtle gameplay changes
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const float k_flMaxVelocity = 2000.0f;
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const float k_flMaxAngularVelocity = 360.0f * 10.0f;
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const float DEFAULT_MIN_FRICTION_MASS = 10.0f;
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const float DEFAULT_MAX_FRICTION_MASS = 2500.0f;
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struct physics_performanceparams_t
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{
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int maxCollisionsPerObjectPerTimestep; // object will be frozen after this many collisions (visual hitching vs. CPU cost)
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int maxCollisionChecksPerTimestep; // objects may penetrate after this many collision checks (can be extended in AdditionalCollisionChecksThisTick)
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float maxVelocity; // limit world space linear velocity to this (in / s)
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float maxAngularVelocity; // limit world space angular velocity to this (degrees / s)
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float lookAheadTimeObjectsVsWorld; // predict collisions this far (seconds) into the future
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float lookAheadTimeObjectsVsObject; // predict collisions this far (seconds) into the future
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float minFrictionMass; // min mass for friction solves (constrains dynamic range of mass to improve stability)
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float maxFrictionMass; // mas mass for friction solves
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void Defaults()
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{
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maxCollisionsPerObjectPerTimestep = 6;
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maxCollisionChecksPerTimestep = 250;
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maxVelocity = k_flMaxVelocity;
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maxAngularVelocity = k_flMaxAngularVelocity;
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lookAheadTimeObjectsVsWorld = 1.0f;
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lookAheadTimeObjectsVsObject = 0.5f;
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minFrictionMass = DEFAULT_MIN_FRICTION_MASS;
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maxFrictionMass = DEFAULT_MAX_FRICTION_MASS;
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}
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};
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#endif // PERFORMANCE_H
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