#pragma once

#include "terrain/shared_mutex.h"
#include "terrain/terrain_modifier.h"

class TerrainModifierDistance : public TerrainModifier {
	GDCLASS(TerrainModifierDistance, TerrainModifier);
	static void _bind_methods();
	void curves_changed();
	bool update_bounds();

protected:
	void _notification(int what);
	float distance_at(Vector2 const &world_coordinate);

public:
	float evaluate_at(Vector2 world_coordinate, float before) override;
	PackedStringArray get_configuration_warnings() const override;

private:
	SharedMutex lock{};
	Ref<Curve> distance_weight_curve{};
	Ref<Curve> distance_weight_curve_buffer{};

public:
	void set_distance_weight_curve(Ref<Curve> curve);
	Ref<Curve> get_distance_weight_curve() const;
};