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Function
PolygonShape:testSegment( x1, y1, x2, y2 )
This function will either return the "time" of impact and the surface normal
at the point of collision, or nil if the line does not intersect the shape.
The "time" is a value between 0.0 and 1.0 and can be used to calculate where
the collision occured.
Synopsis
t, xn, yn = PolygonShape:testSegment( x1, y1, x2, y2 )
Arguments
x1
The x-component of the first endpoint.
y1
The y-component of the first endpoint.
x2
The x-component of the second endpoint.
y2
The y-component of the second endpoint.
Returns
number
The time of impact, or nil if no impact.
number
The x-component of the surface normal.
number
The y-component of the surface normal.
Copyright © 2006-2008 LÖVE Development Team.
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