/ 
Collision-2D-0.03
River stage zero No dependents
/ Collision::2D::Entity

NAME

Collision::2D::Entity - A moving entity. Don't use this directly.

DESCRIPTION

ATTRIBUTES

x,y,xv,yv

Absolute position and velocity in space. These are necessary if you want to do collisions through dynamic_collision

dynamic_collision($circ1, $circ2);

relative_x, relative_y, relative_xv, relative_yv

Relative position and velocity in space. these are necessary if you want to do collisions directly through entity methods,

$circ1->collide_circle($circ2);

In this case, both the absolute and relative position and velocity of $circ2 is not used. The relative attributes of $circ1 are assumed to be relative to $circ2.

METHODS

normalize

$self->normalize($other); # $other isa entity
This compares the absolute attributes of $self and $other.
It only sets the relative attributes of $self.
This is necessary to call collide_*($other) methods on $self.