Difference between revisions of "love.graphics.newParticleSystem"

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(Add example.)
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=== Returns ===
 
=== Returns ===
 
{{param|ParticleSystem|system|A new ParticleSystem.}}
 
{{param|ParticleSystem|system|A new ParticleSystem.}}
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== Examples ==
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=== Creation and usage of a particle system ===
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You can use the [https://www.love2d.org/w/images/9/9b/Love-game-logo-256x256.png löve logo] as an example image.
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<source lang="lua">
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function love.load()
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local img = love.graphics.newImage('logo.png');
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psystem = love.graphics.newParticleSystem(img, 32);
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psystem:setParticleLifetime(2, 5); -- Particles live at least 2s and at most 5s.
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psystem:setEmissionRate(5);
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psystem:setSizeVariation(1);
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psystem:setLinearAcceleration(-20, -20, 20, 20); -- Random movement in all directions.
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psystem:setColors(255, 255, 255, 255, 255, 255, 255, 0); -- Fade to black.
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end
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function love.draw()
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-- Draw the particle system at the center of the game window.
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love.graphics.draw(psystem, love.graphics.getWidth() * 0.5, love.graphics.getHeight() * 0.5);
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end
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function love.update(dt)
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psystem:update(dt);
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end
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</source>
  
 
== See Also ==
 
== See Also ==

Revision as of 19:38, 6 January 2015

Creates a new ParticleSystem.

O.png 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

system = love.graphics.newParticleSystem( image, buffer )

Arguments

Image image
The image to use.
number buffer
The max number of particles at the same time.

Returns

ParticleSystem system
A new ParticleSystem.

Function

Available since LÖVE 0.9.1
This variant is not supported in earlier versions.

Synopsis

system = love.graphics.newParticleSystem( texture, buffer )

Arguments

Texture texture
The texture (Image or Canvas) to use.
number buffer
The max number of particles at the same time.

Returns

ParticleSystem system
A new ParticleSystem.

Examples

Creation and usage of a particle system

You can use the löve logo as an example image.

function love.load()
	local img = love.graphics.newImage('logo.png');

	psystem = love.graphics.newParticleSystem(img, 32);
	psystem:setParticleLifetime(2, 5); -- Particles live at least 2s and at most 5s.
	psystem:setEmissionRate(5);
	psystem:setSizeVariation(1);
	psystem:setLinearAcceleration(-20, -20, 20, 20); -- Random movement in all directions.
	psystem:setColors(255, 255, 255, 255, 255, 255, 255, 0); -- Fade to black.
end

function love.draw()
	-- Draw the particle system at the center of the game window.
	love.graphics.draw(psystem, love.graphics.getWidth() * 0.5, love.graphics.getHeight() * 0.5);
end

function love.update(dt)
	psystem:update(dt);
end

See Also


Other Languages