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#pragma once
#include "math/Quaternion.h"
#include "math/FloatTools.h"
#include <sigc++/trackable.h>
#include <functional>
class Entity;
namespace entity
{
/// Wrapper for an "angle" spawnarg
class AngleKey: public sigc::trackable
{
private:
std::function<void()> _angleChanged;
float _value;
public:
static const float IDENTITY;
AngleKey(const std::function<void()>& angleChanged) :
_angleChanged(angleChanged),
_value(IDENTITY)
{}
float getValue() const
{
return _value;
}
void setValue(float value)
{
_value = value;
}
// Callback method invoked when the corresponding spawnarg changes
void angleChanged(const std::string& value);
void write(Entity* entity) const
{
writeToEntity(_value, entity);
}
// Writes the given angle value as angle spawnarg to the given entity
// Doesn't remove a pre-existing angle key even if its future value will be 0
static void writeToEntity(double angle, Entity* entity);
// Returns the new angle value rotated by the given quaternion
static float getRotatedValue(float angle, const Quaternion& rotation);
private:
float getNormalisedAngle(float angle)
{
return float_mod(angle, 360.0f);
}
};
} // namespace
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