Difference between revisions of "love.graphics.newParticleSystem"
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=== Returns === | === Returns === | ||
{{param|ParticleSystem|system|A new ParticleSystem.}} | {{param|ParticleSystem|system|A new ParticleSystem.}} | ||
+ | |||
+ | == Examples == | ||
+ | === Creation and usage of a particle system === | ||
+ | You can use the [https://www.love2d.org/w/images/9/9b/Love-game-logo-256x256.png löve logo] as an example image. | ||
+ | <source lang="lua"> | ||
+ | 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 | ||
+ | </source> | ||
== See Also == | == See Also == |
Revision as of 19:38, 6 January 2015
Creates a new ParticleSystem.
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
system = love.graphics.newParticleSystem( image, buffer )
Arguments
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
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