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49 lines
1.0 KiB
49 lines
1.0 KiB
5 years ago
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//========= 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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#include "mathlib/vector.h"
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#include "bspfile.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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void SetupLightNormalFromProps( const QAngle &angles, float angle, float pitch, Vector &output )
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{
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if (angle == ANGLE_UP)
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{
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output[0] = output[1] = 0;
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output[2] = 1;
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}
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else if (angle == ANGLE_DOWN)
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{
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output[0] = output[1] = 0;
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output[2] = -1;
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}
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else
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{
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// if we don't have a specific "angle" use the "angles" YAW
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if ( !angle )
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{
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angle = angles[YAW];
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}
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output[2] = 0;
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output[0] = (float)cos (angle/180*M_PI);
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output[1] = (float)sin (angle/180*M_PI);
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}
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if ( !pitch )
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{
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// if we don't have a specific "pitch" use the "angles" PITCH
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pitch = angles[PITCH];
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}
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output[2] = (float)sin(pitch/180*M_PI);
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output[0] *= (float)cos(pitch/180*M_PI);
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output[1] *= (float)cos(pitch/180*M_PI);
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}
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