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#ifndef TOBESORTED_D_CAMERA_MATH_H
#define TOBESORTED_D_CAMERA_MATH_H
#include "common.h"
#include "m/m_angle.h"
#include "m/m_vec.h"
class dAcObjBase_c;
/**
* @brief A function that looks like an ease-in tween.
*
* @param arg The time argument in [0, 1]
* @param param The power of the easing function. 0 = linear, 1 = quite powerful
* @return f32 The result in [0, 1]
*/
f32 camEaseIn(f32 arg, f32 param);
/**
* @brief A function that looks like an ease-in-out tween.
*
* @param arg The time argument in [0, 1]
* @param param The power of the easing function. 0 = linear, 1 = a little bit
* @return f32 The result in [0, 1]
*/
f32 camEaseInOut(f32 arg, f32 param);
/**
* @brief Get a point on the line from origin to target that is as
* far away from origin as point is away from origin.
*/
mVec3_c camGetPointOnLine(const mVec3_c &target, const mVec3_c &origin, const mVec3_c &point);
/**
* @brief Get a point relative to ac's position. localOffset is rotated by the actor's XY rotation first.
*/
mVec3_c camOffsetPoint(dAcObjBase_c *ac, const mVec3_c &localOffset);
/**
* @brief Like the other camOffsetPoint, but with an explicitly passed rotation.
*/
mVec3_c camOffsetPoint(dAcObjBase_c *ac, const mVec3_c &localOffset, const mAng3_c &rot);
/**
* @brief The inverse of camOffsetPoint
*/
mVec3_c camPointToLocal(dAcObjBase_c *ac, const mVec3_c &pos);
/**
* @brief The inverse of camOffsetPoint
*/
mVec3_c camPointToLocal(dAcObjBase_c *ac, const mVec3_c &pos, const mAng3_c &rot);
#endif
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