X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=qcsrc%2Fmenu%2Fanim%2Feasing.qc;fp=qcsrc%2Fmenu%2Fanim%2Feasing.qc;h=94ea9cf0872da839e836be94e28cda460f029bab;hb=e3507f4fdbc2b3e15b663365e57e0aa60f3cf1a6;hp=0000000000000000000000000000000000000000;hpb=02013c593abe7ccb7c6502148df33b34390d8216;p=xonotic%2Fxonotic-data.pk3dir.git

diff --git a/qcsrc/menu/anim/easing.qc b/qcsrc/menu/anim/easing.qc
new file mode 100644
index 000000000..94ea9cf08
--- /dev/null
+++ b/qcsrc/menu/anim/easing.qc
@@ -0,0 +1,72 @@
+#ifdef INTERFACE
+CLASS(Easing) EXTENDS(Animation)
+	METHOD(Easing, calcValue, float(entity, float, float, float, float))
+	METHOD(Easing, setMath, void(entity, float(float, float, float, float)))
+	ATTRIB(Easing, math, float(float, float, float, float), easingLinear)
+ENDCLASS(Easing)
+entity makeHostedEasing(entity, void(entity, float), float(float, float, float, float), float, float, float);
+entity makeEasing(entity, void(entity, float), float(float, float, float, float), float, float, float, float);
+float easingLinear(float, float, float, float);
+float easingQuadIn(float, float, float, float);
+float easingQuadOut(float, float, float, float);
+float easingQuadInOut(float, float, float, float);
+#endif
+
+#ifdef IMPLEMENTATION
+entity makeHostedEasing(entity obj, void(entity, float) objSetter, float(float, float, float, float) func, float animDuration, float animStartValue, float animEnd)
+{
+	entity me;
+	me = makeEasing(obj, objSetter, func, time, animDuration, animStartValue, animEnd);
+	anim.addAnim(anim, me);
+	return me;
+}
+
+entity makeEasing(entity obj, void(entity, float) objSetter, float(float, float, float, float) func, float animStartTime, float animDuration, float animStartValue, float animEnd)
+{
+	entity me;
+	me = spawnEasing();
+	me.configureAnimation(me, obj, objSetter, animStartTime, animDuration, animStartValue, animEnd);
+	me.setMath(me, func);
+	return me;
+}
+
+float Easing_calcValue(entity me, float tickTime, float animDuration, float animStart, float animDelta)
+{
+	return me.math(tickTime, animDuration, animStart, animDelta);
+}
+
+void Easing_setMath(entity me, float(float, float, float, float) func)
+{
+	me.math = func;
+}
+
+float easingLinear(float tickTime, float animDuration, float animStart, float animDelta)
+{
+	return (animDelta * (tickTime / animDuration)) + animStart;
+}
+
+float easingQuadIn(float tickTime, float animDuration, float animStart, float animDelta)
+{
+	float frac = tickTime / animDuration;
+	return (animDelta * frac * frac) + animStart;
+}
+
+float easingQuadOut(float tickTime, float animDuration, float animStart, float animDelta)
+{
+	float frac = tickTime / animDuration;
+	return (-animDelta * frac * (frac - 2)) + animStart;
+}
+
+float easingQuadInOut(float tickTime, float animDuration, float animStart, float animDelta)
+{
+	if (tickTime < (animDuration / 2))
+	{
+		return easingQuadIn(tickTime, (animDuration / 2), animStart, (animDelta / 2));
+	}
+	else
+	{
+		return easingQuadOut((tickTime - (animDuration / 2)), (animDuration / 2), (animStart + (animDelta / 2)), (animDelta / 2));
+	}
+}
+
+#endif