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implement ping-pong loop in animation

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Co-authored-by: Chaosus <chaosus89@gmail.com>
This commit is contained in:
Tokage
2021-04-25 05:47:03 +09:00
committed by Silc 'Tokage' Renew
parent e8c89b2b91
commit 372ba76663
29 changed files with 852 additions and 362 deletions
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13
core/math/math_funcs.h
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@@ -291,6 +291,19 @@ public:
return is_zero_approx(range) ? min : value - (range * Math::floor((value - min) / range));
}
static _ALWAYS_INLINE_ float fract(float value) {
return value - floor(value);
}
static _ALWAYS_INLINE_ double fract(double value) {
return value - floor(value);
}
static _ALWAYS_INLINE_ float pingpong(float value, float length) {
return (length != 0.0f) ? abs(fract((value - length) / (length * 2.0f)) * length * 2.0f - length) : 0.0f;
}
static _ALWAYS_INLINE_ double pingpong(double value, double length) {
return (length != 0.0) ? abs(fract((value - length) / (length * 2.0)) * length * 2.0 - length) : 0.0;
}
// double only, as these functions are mainly used by the editor and not performance-critical,
static double ease(double p_x, double p_c);
static int step_decimals(double p_step);