collision::Constraints Class Reference

#include <collision.hpp>

List of all members.

Public Member Functions
	Constraints ()
bool	has_constraints () const
void	constrain_left (float position, float velocity)
void	constrain_right (float position, float velocity)
void	constrain_top (float position, float velocity)
void	constrain_bottom (float position, float velocity)
float	get_position_left (void) const
float	get_position_right (void) const
float	get_position_top (void) const
float	get_position_bottom (void) const
float	get_height (void) const
float	get_width (void) const
float	get_x_midpoint (void) const
Public Attributes
Vector	ground_movement
CollisionHit	hit
Private Attributes
float	position_left
float	position_right
float	position_top
float	position_bottom
float	speed_left
float	speed_right
float	speed_top
float	speed_bottom

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Detailed Description

Definition at line 30 of file collision.hpp.

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Constructor & Destructor Documentation

collision::Constraints::Constraints

(

)

[inline]

Definition at line 33 of file collision.hpp.

References position_bottom, position_left, position_right, position_top, speed_bottom, speed_left, speed_right, and speed_top.

                :
    ground_movement(),
    hit(),
    position_left(),
    position_right(),
    position_top(),
    position_bottom(),
    speed_left(),
    speed_right(),
    speed_top(),
    speed_bottom()
  {
    float infinity = (std::numeric_limits<float>::has_infinity ? 
                      std::numeric_limits<float>::infinity() : 
                      std::numeric_limits<float>::max());
    position_left = -infinity;
    position_right = infinity;
    position_top = -infinity;
    position_bottom = infinity;

    speed_left = -infinity;
    speed_right = infinity;
    speed_top = -infinity;
    speed_bottom = infinity;
  }

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Member Function Documentation

bool collision::Constraints::has_constraints

(

)

const [inline]

Definition at line 59 of file collision.hpp.

References position_bottom, position_left, position_right, and position_top.

  {
    float infinity = (std::numeric_limits<float>::has_infinity ?
                      std::numeric_limits<float>::infinity() : 
                      std::numeric_limits<float>::max());
    return
      position_left   > -infinity || 
      position_right  <  infinity || 
      position_top    > -infinity || 
      position_bottom <  infinity;
  }

void collision::Constraints::constrain_left	(	float	position,
		float	velocity
	)			[inline]

Definition at line 73 of file collision.hpp.

References position_left, and speed_left.

Referenced by check_collisions(), collision::rectangle_aatriangle(), and collision::set_rectangle_rectangle_constraints().

  {
    position_left = std::max (position_left, position);
    speed_left = std::max (speed_left, velocity);
  }

void collision::Constraints::constrain_right	(	float	position,
		float	velocity
	)			[inline]

Definition at line 79 of file collision.hpp.

References position_right, and speed_right.

Referenced by check_collisions(), collision::rectangle_aatriangle(), and collision::set_rectangle_rectangle_constraints().

  {
    position_right = std::min (position_right, position);
    speed_right = std::min (speed_right, velocity);
  }

void collision::Constraints::constrain_top	(	float	position,
		float	velocity
	)			[inline]

Definition at line 85 of file collision.hpp.

References position_top, and speed_top.

Referenced by check_collisions(), collision::rectangle_aatriangle(), and collision::set_rectangle_rectangle_constraints().

  {
    position_top = std::max (position_top, position);
    speed_top = std::max (speed_top, velocity);
  }

void collision::Constraints::constrain_bottom	(	float	position,
		float	velocity
	)			[inline]

Definition at line 91 of file collision.hpp.

References position_bottom, and speed_bottom.

Referenced by check_collisions(), collision::rectangle_aatriangle(), and collision::set_rectangle_rectangle_constraints().

  {
    position_bottom = std::min (position_bottom, position);
    speed_bottom = std::min (speed_bottom, velocity);
  }

float collision::Constraints::get_position_left

(

void

)

const [inline]

Definition at line 97 of file collision.hpp.

References position_left.

{ return position_left;   }

float collision::Constraints::get_position_right

(

void

)

const [inline]

Definition at line 98 of file collision.hpp.

References position_right.

{ return position_right;  }

float collision::Constraints::get_position_top

(

void

)

const [inline]

Definition at line 99 of file collision.hpp.

References position_top.

{ return position_top;    }

float collision::Constraints::get_position_bottom

(

void

)

const [inline]

Definition at line 100 of file collision.hpp.

References position_bottom.

{ return position_bottom; }

float collision::Constraints::get_height

(

void

)

const [inline]

Definition at line 102 of file collision.hpp.

References position_bottom, and position_top.

{ return (position_bottom - position_top); }

float collision::Constraints::get_width

(

void

)

const [inline]

Definition at line 103 of file collision.hpp.

References position_left, and position_right.

{ return (position_right - position_left); }

float collision::Constraints::get_x_midpoint

(

void

)

const [inline]

Definition at line 105 of file collision.hpp.

References position_left, and position_right.

{ return (.5f * (position_left + position_right)); }

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Member Data Documentation

Vector collision::Constraints::ground_movement

Definition at line 107 of file collision.hpp.

Referenced by check_collisions(), collision::rectangle_aatriangle(), and collision::set_rectangle_rectangle_constraints().

CollisionHit collision::Constraints::hit

Definition at line 108 of file collision.hpp.

Referenced by check_collisions(), collision::rectangle_aatriangle(), and collision::set_rectangle_rectangle_constraints().

float collision::Constraints::position_left [private]

Definition at line 111 of file collision.hpp.

Referenced by constrain_left(), Constraints(), get_position_left(), get_width(), get_x_midpoint(), and has_constraints().

float collision::Constraints::position_right [private]

Definition at line 112 of file collision.hpp.

Referenced by constrain_right(), Constraints(), get_position_right(), get_width(), get_x_midpoint(), and has_constraints().

float collision::Constraints::position_top [private]

Definition at line 113 of file collision.hpp.

Referenced by constrain_top(), Constraints(), get_height(), get_position_top(), and has_constraints().

float collision::Constraints::position_bottom [private]

Definition at line 114 of file collision.hpp.

Referenced by constrain_bottom(), Constraints(), get_height(), get_position_bottom(), and has_constraints().

float collision::Constraints::speed_left [private]

Definition at line 116 of file collision.hpp.

Referenced by constrain_left(), and Constraints().

float collision::Constraints::speed_right [private]

Definition at line 117 of file collision.hpp.

Referenced by constrain_right(), and Constraints().

float collision::Constraints::speed_top [private]

Definition at line 118 of file collision.hpp.

Referenced by constrain_top(), and Constraints().

float collision::Constraints::speed_bottom [private]

Definition at line 119 of file collision.hpp.

Referenced by constrain_bottom(), and Constraints().

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The documentation for this class was generated from the following file:

• src/supertux/collision.hpp

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