Difference between revisions of "love.graphics.newQuad"
Hans adler (talk | contribs) (explain precise purpose of the parameters) |
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=== Returns === | === Returns === | ||
{{param|Quad|quad|The new Quad.}} | {{param|Quad|quad|The new Quad.}} | ||
+ | === Note === | ||
+ | The purpose of a quad is to describe the result of the following transformation on any drawable object. The object is first scaled to dimensions sw × sh. The quad then describes the rectangular area of dimensions width × height whose upper left corner inside the scaled object is at position (x, y). | ||
== Examples == | == Examples == |
Revision as of 02:20, 15 January 2012
Creates a new Quad.
Contents
Function
Synopsis
quad = love.graphics.newQuad( x, y, width, height, sw, sh )
Arguments
number x
- The top-left position along the x-axis.
number y
- The top-left position along the y-axis.
number width
- The width of the Quad.
number height
- The height of the Quad.
number sw
- The reference width.
number sh
- The reference height.
Returns
Quad quad
- The new Quad.
Note
The purpose of a quad is to describe the result of the following transformation on any drawable object. The object is first scaled to dimensions sw × sh. The quad then describes the rectangular area of dimensions width × height whose upper left corner inside the scaled object is at position (x, y).
Examples
Use a Quad to display part of an Image:
img = love.graphics.newImage("mushroom-64x64.png")
-- Let's say we want to display only the top-left
-- 32x32 quadrant of the Image:
top_left = love.graphics.newQuad(0, 0, 32, 32, 64, 64)
-- And here is bottom left:
bottom_left = love.graphics.newQuad(0, 32, 32, 32, 64, 64)
function love.draw()
love.graphics.drawq(img, top_left, 50, 50)
love.graphics.drawq(img, bottom_left, 50, 200)
end
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