// DP/Nex Menu
// control/fx/fx.qh

// [Item_Changer]

// An effect always affects its parent
// There are two kinds of effects periodic/loop effects and task-effects
// The difference is that a task-effect will be finished somewhen and then deactivate/remove itself
// while a loop effect will restart
// A loop task will have deltaTime2 set

enum {
	ITEM_STATE_FORWARD,
	ITEM_STATE_BACKWARD
};

// [Item_Effect]
// deltaTime2 = -1 for a task effect
// deltaTime2 = -2 for a persistent task effect
// endTime = -1 for a infinite loop effect
.vector time; // <deltaTime1, deltaTime2, endTime>

.union {
	.vector targetVector;
	.float  targetFloat;
};
/*
.union {
	struct {
		vector startVector;
		float startFloat;
	};
	struct {
		vector endVector;
		float endFloat;
	};
};*/
.float startFloat;
.vector startVector;
.float endFloat;
.vector endVector;

.float _state;
.float _presstime;

// returns new value
typedef float( float pStart, float pEnd, float pDeltaTime, float pT, float pValue ) InterpolFunction;

.InterpolFunction interpolForward;
.InterpolFunction interpolBackward;

// Item_Effect_Float
// Item_Effect_Vector

void() Item_Effect_Vector_Reinit;
void() Item_Effect_Vector_Update;
void() Item_Effect_Vector_Spawn;

// Interpolation functions
float( float pStart, float pEnd, float pDeltaTime, float pT, float pValue ) FX_LinearInterpolation;
float( float pStart, float pEnd, float pDeltaTime, float pT, float pValue ) FX_SquareInterpolation;