mosp :: collide :: Line :: Class Line

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Class Line

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A collidable line.

Author: P. Tute

Instance Methods

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__init__(self, x_start, y_start, x_end, y_end)
initializes the collidable Line.

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__repr__(self)
repr(x)

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closest_to_point(self, x, y)
Finds the point on this line closest to a given point.

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collide_circle(self, x, y, radius)
Checks if this line collides with the given circle.

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collide_horizontal_line(self, x1, x2, y)
Checks if this line collides with a horizontal line.

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collide_polygon(self, corners)
Nothing Implemented! Checks if this line collides with the given polygon.

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collide_rectangle(self, x_min, y_min, x_max, y_max)
Checks if this line collides with the given rectangle.

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collide_vertical_line(self, x, y1, y2)
Checks if this line collides with a vertical line.

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get_points(self)
Yields the start and end point coordinates (x, y) of the Line.

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Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, x_start, y_start, x_end, y_end)
(Constructor)

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initializes the collidable Line.

x_start, y_start define starting point, x_end, y_end define ending point.

Overrides: object.__init__

repr(self)
(Representation operator)

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repr(x)

Overrides: object.__repr__: (inherited documentation)

closest_to_point(self, x, y)

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Finds the point on this line closest to a given point.

Based on http://www.alecjacobson.com/weblog/?p=1486

collide_horizontal_line(self, x1, x2, y)

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Checks if this line collides with a horizontal line.

Returns a boolean and the intersection-coordinates.

collide_polygon(self, corners)

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Nothing Implemented! Checks if this line collides with the given polygon.

Status: not implemented

collide_rectangle(self, x_min, y_min, x_max, y_max)

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Checks if this line collides with the given rectangle.

The algorithm by Cohen & Sutherland is used. It only works for axis-aligned rectangles. http://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland

collide_vertical_line(self, x, y1, y2)

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Checks if this line collides with a vertical line.

Returns a boolean and the intersection-coordinates.

Class Line

__init__(self, x_start, y_start, x_end, y_end) (Constructor)

__repr__(self) (Representation operator)

closest_to_point(self, x, y)

collide_horizontal_line(self, x1, x2, y)

collide_polygon(self, corners)

collide_rectangle(self, x_min, y_min, x_max, y_max)

collide_vertical_line(self, x, y1, y2)

init(self, x_start, y_start, x_end, y_end)
(Constructor)

repr(self)
(Representation operator)