Article Tutorials/Drawing Shapes (filled polygons)

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Revision as of 17:35, 12 July 2023 by Hgy29 (talk | contribs) (Text replacement - "<source" to "<syntaxhighlight")

Displaying Images

Gideros Studio has a simple way of creating graphics in the way of Shapes.

To create a shape, you draw it using line commands. Once created, the shape can be rotated, scaled, ... <syntaxhighlight lang="lua"> local myShape = Shape.new() myShape:setLineStyle(2) myShape:setFillStyle(Shape.SOLID, 0x9900ff) myShape:beginPath() myShape:moveTo(1,1) myShape:lineTo(100,1) myShape:lineTo(100,100) myShape:lineTo(1,100) myShape:lineTo(1,1) myShape:endPath() stage:addChild(myShape) </source>

This will draw a purple rectangle:

PurpleRectangle.png


Manipulating your shape

<syntaxhighlight lang="lua"> myShape:setPosition(75,0) myShape:setRotation(45) myShape:setAlpha(0.5) </source>

Rotated-Rectangle.png

Style

There are a few options for setFillStyle:
Shape.NONE = No fill
Shape.SOLID = Solid color fill
Shape.TEXTURE = Fill your shape with the content of a PNG

This will set the shape as solid with a blue color filling and a transparency of 0.25: <syntaxhighlight lang="lua"> setFillStyle(Shape.SOLID, 0x0000ff, 0.25) </source>

There are also a few options for setLineStyle:
width
color
alpha


Note: This tutorial was written by Jason Oakley and was originally available here: http://bluebilby.com/2013/04/10/gideros-mobile-tutorial-displaying-graphics/.

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