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!

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

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:getDimensions())

-- And here is bottom left:
bottom_left = love.graphics.newQuad(0, 32, 32, 32, img:getDimensions())

function love.draw()
	love.graphics.draw(img, top_left, 50, 50)
	love.graphics.draw(img, bottom_left, 50, 200)
	-- v0.8:
	-- love.graphics.drawq(img, top_left, 50, 50)
	-- love.graphics.drawq(img, bottom_left, 50, 200)
end

See Also

• love.graphics
• Quad

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