Polygon

php\gdx\math\Polygon

Class Polygon

Methods

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__construct($vertices)

Parameters:

• $vertices – array - (optional)

getVertices()

Returns the polygon’s local vertices without scaling or rotation and without being offset by the polygon position.

Returns:float[]

getTransformedVertices()

Returns:float[] vertices scaled, rotated, and offset by the polygon position.

setOrigin($originX, $originY)

Sets the origin point to which all of the polygon’s local vertices are relative to.

Parameters:

• $originX – float
• $originY – float

setPosition($x, $y)

Sets the polygon’s position within the world.

Parameters:

• $x – float
• $y – float

setVertices($vertices)

Parameters:

• $vertices – array

translate($x, $y)

Translates the polygon’s position by the specified horizontal and vertical amounts.

Parameters:

• $x – float
• $y – float

setRotation($degrees)

Sets the polygon to be rotated by the supplied degrees.

Parameters:

• $degrees – float

rotate($degrees)

Applies additional rotation to the polygon by the supplied degrees.

Parameters:

• $degrees – float

setScale($scaleX, $scaleY)

Sets the amount of scaling to be applied to the polygon.

Parameters:

• $scaleX – float
• $scaleY – float

scale($amount)

Applies additional scaling to the polygon by the supplied amount.

Parameters:

• $amount – float

dirty()

area()

Returns the area contained within the polygon.

Returns:float

contains($x, $y)

Parameters:

• $x – float
• $y – float

Returns:

bool

getX()

Returns:float

getY()

Returns:float

getOriginX()

Returns:float

getOriginY()

Returns:float

getRotation()

Returns:float

getScaleX()

Returns:float

getScaleY()

Returns:float