Difference between revisions of "love.graphics.setColor"

m (Display a Venn diagram)
m
Line 28: Line 28:
 
=== Draw a red, blue and green circle ===
 
=== Draw a red, blue and green circle ===
 
<source lang="lua">
 
<source lang="lua">
love.graphics.setColor(1, 0, 0)
+
function love.draw()
love.graphics.circle(50, 50, 20, 20)
+
love.graphics.setColor(1, 0, 0)
 +
love.graphics.circle("fill", 50, 50, 20)
  
love.graphics.setColor(0, 0, 1)
+
love.graphics.setColor(0, 0, 1)
love.graphics.circle(50, 100, 20, 20)
+
love.graphics.circle("fill", 50, 100, 20, 20)
  
myColor = {0, 1, 0, 1}
+
myColor = {0, 1, 0, 1}
love.graphics.setColor(myColor)
+
love.graphics.setColor(myColor)
love.graphics.circle(50, 150, 20, 20)
+
love.graphics.circle("fill", 50, 150, 20, 20)
 +
end
 
</source>
 
</source>
 
=== Display a Venn diagram ===
 
=== Display a Venn diagram ===
Line 49: Line 51:
  
 
function love.draw()
 
function love.draw()
love.graphics.setColor(1, 0, 0, 100)
+
love.graphics.setColor(1, 0, 0, 0.4)
 
love.graphics.circle('fill', baseX, baseY, radius, 50)
 
love.graphics.circle('fill', baseX, baseY, radius, 50)
love.graphics.setColor(0, 1, 0, 100)
+
love.graphics.setColor(0, 1, 0, 0.4)
 
love.graphics.circle('fill', baseX + radius / 2, baseY - offsetY, radius, 50)
 
love.graphics.circle('fill', baseX + radius / 2, baseY - offsetY, radius, 50)
love.graphics.setColor(0, 0, 1, 100)
+
love.graphics.setColor(0, 0, 1, 0.4)
 
love.graphics.circle('fill', baseX + radius, baseY, radius, 50)
 
love.graphics.circle('fill', baseX + radius, baseY, radius, 50)
 
end
 
end

Revision as of 22:08, 2 January 2020

Sets the color used for drawing.

In versions prior to 11.0, color component values were within the range of 0 to 255 instead of 0 to 1.

Function

Synopsis

love.graphics.setColor( red, green, blue, alpha )

Arguments

number red
The amount of red.
number green
The amount of green.
number blue
The amount of blue.
number alpha (1)
The amount of alpha. The alpha value will be applied to all subsequent draw operations, even the drawing of an image.

Returns

Nothing.

Function

Available since LÖVE 0.7.0
This variant is not supported in earlier versions.

Synopsis

love.graphics.setColor( rgba )

Arguments

table rgba
A numerical indexed table with the red, green, blue and alpha values as numbers. The alpha is optional and defaults to 1 if it is left out.

Returns

Nothing.

Examples

Draw a red, blue and green circle

function love.draw()
	love.graphics.setColor(1, 0, 0)
	love.graphics.circle("fill", 50, 50, 20)
 
	love.graphics.setColor(0, 0, 1)
	love.graphics.circle("fill", 50, 100, 20, 20)
 
	myColor = {0, 1, 0, 1}
	love.graphics.setColor(myColor)
	love.graphics.circle("fill", 50, 150, 20, 20)
end

Display a Venn diagram

function love.load()
	baseX = 300
	baseY = 400
	radius = 100
	offsetY = radius*.5*math.sqrt(3)
	love.graphics.setBackgroundColor(1, 1, 1)
end
 
function love.draw()
	love.graphics.setColor(1, 0, 0, 0.4)
	love.graphics.circle('fill', baseX, baseY, radius, 50)
	love.graphics.setColor(0, 1, 0, 0.4)
	love.graphics.circle('fill', baseX + radius / 2, baseY - offsetY, radius, 50)
	love.graphics.setColor(0, 0, 1, 0.4)
	love.graphics.circle('fill', baseX + radius, baseY, radius, 50)
end

See Also


Other Languages