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engine: client: use alternative ease-in ease-out function in sound fade

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This commit is contained in:
Alibek Omarov 2023-03-30 04:40:48 +03:00
parent 7cac1d290d
commit 53987f47e2
3 changed files with 1 additions and 20 deletions
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2
engine/client/s_main.c
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@ -159,7 +159,7 @@ void S_UpdateSoundFade( void )
} }
// spline it. // spline it.
f = SimpleSpline( f ); f = -( cos( M_PI * f ) - 1 ) / 2;
f = bound( 0.0f, f, 1.0f ); f = bound( 0.0f, f, 1.0f );
soundfade.percent = soundfade.initial_percent * f; soundfade.percent = soundfade.initial_percent * f;

18
public/xash3d_mathlib.c
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@ -53,24 +53,6 @@ float anglemod( float a )
return a; return a;
} }
/*
=================
SimpleSpline
NOTE: ripped from hl2 source
hermite basis function for smooth interpolation
Similar to Gain() above, but very cheap to call
value should be between 0 & 1 inclusive
=================
*/
float SimpleSpline( float value )
{
float valueSquared = value * value;
// nice little ease-in, ease-out spline-like curve
return (3.0f * valueSquared - 2.0f * valueSquared * value);
}
word FloatToHalf( float v ) word FloatToHalf( float v )
{ {
unsigned int i = FloatAsUint( v ); unsigned int i = FloatAsUint( v );

1
public/xash3d_mathlib.h
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@ -177,7 +177,6 @@ float rsqrt( float number );
float anglemod( float a ); float anglemod( float a );
word FloatToHalf( float v ); word FloatToHalf( float v );
float HalfToFloat( word h ); float HalfToFloat( word h );
float SimpleSpline( float value );
void RoundUpHullSize( vec3_t size ); void RoundUpHullSize( vec3_t size );
int SignbitsForPlane( const vec3_t normal ); int SignbitsForPlane( const vec3_t normal );
int PlaneTypeForNormal( const vec3_t normal ); int PlaneTypeForNormal( const vec3_t normal );