love.graphics.newQuad
Creates a new Quad.
The purpose of a Quad is to use a fraction of a texture to draw objects, as opposed to drawing the entire texture. It is most useful for sprite sheets and atlases: in a sprite atlas, multiple sprites reside in the same texture, quad is used to draw a specific sprite from that texture; in animated sprites with all frames residing in the same texture, quad is used to draw specific frame from the animation.
This function can be slow if it is called repeatedly, such as from love.update or love.draw. If you need to use a specific resource often, create it once and store it somewhere it can be reused! |
Contents
Function
Synopsis
quad = love.graphics.newQuad( x, y, width, height, sw, sh )
Arguments
number x
- The top-left position in the Texture along the x-axis.
number y
- The top-left position in the Texture along the y-axis.
number width
- The width of the Quad in the Texture. (Must be greater than 0.)
number height
- The height of the Quad in the Texture. (Must be greater than 0.)
number sw
- The reference width, the width of the Texture. (Must be greater than 0.)
number sh
- The reference height, the height of the Texture. (Must be greater than 0.)
Returns
Quad quad
- The new Quad.
Function
Available since LÖVE 11.0 |
This variant is not supported in earlier versions. |
Synopsis
quad = love.graphics.newQuad( x, y, width, height, texture )
Arguments
number x
- The top-left position in the Texture along the x-axis.
number y
- The top-left position in the Texture along the y-axis.
number width
- The width of the Quad in the Texture. (Must be greater than 0.)
number height
- The height of the Quad in the Texture. (Must be greater than 0.)
Texture texture
- The texture whose width and height will be used as the reference width and height.
Returns
Quad quad
- The new Quad.
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, img)
-- And here is bottom left:
bottom_left = love.graphics.newQuad(0, 32, 32, 32, img)
function love.draw()
love.graphics.draw(img, top_left, 50, 50)
love.graphics.draw(img, bottom_left, 50, 200)
end
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