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#pragma once

struct CurveMouseState
{
	int x;
	int y;
	unsigned char but;
};

struct CurveEditorBounds
{
	int x, y, w, h;
};

struct CurvePoint
{
	float x;
	float r, g, b, a;
};

enum CurvePointAction
{
	CURVE_POINT_NO_ACTION,
	CURVE_POINT_MODIFY,
	CURVE_POINT_INSERT,
	CURVE_POINT_REMOVE,
};

struct CurveEditParams
{
	CurveMouseState mouseState;
	CurveEditorBounds editorBounds;
	CurvePoint rangeMin;
	CurvePoint rangeMax;
	CurvePoint* points;
	unsigned int numPoints;
};

struct CurveEditState
{
	int activePointIndex;
	int action;
	bool pointMoveActive;
	int pointMoveX;
	int pointMoveY;
	CurvePoint point;
};

bool curveEditor(CurveEditState* editState, const CurveEditParams* params);