Super Particle Editting and Rendering Machine
Posted: Wed Jan 15, 2014 3:03 am
BIG GIF 1
BIG GIF 2
BIG GIF 3
USAGE
1. Open the .love file and change the save directory (first line in love.load function) to where you wanna save the particle systems to;
2. Use the editor! Controls: CTRL+Click to move the particle system, F1 to hide UI.
Video "tutorial":
GAME INTEGRATION
1. Download the example project and see how it's done there or;
1. Copy the getPS function to somewhere in your game and just call it using the name of the particle system (the name of the .lua file the editor generates to your save directory) and passing an image. It returns a ParticleSystem and you should need to start, update and draw it (and set blend modes yourself, since those don't magically carry over).
Code: Select all
function getPS(name, image)
local ps_data = require(name)
local particle_settings = {}
particle_settings["colors"] = {}
particle_settings["sizes"] = {}
for k, v in pairs(ps_data) do
if k == "colors" then
local j = 1
for i = 1, #v , 4 do
local color = {v[i], v[i+1], v[i+2], v[i+3]}
particle_settings["colors"][j] = color
j = j + 1
end
elseif k == "sizes" then
for i = 1, #v do particle_settings["sizes"][i] = v[i] end
else particle_settings[k] = v end
end
local ps = love.graphics.newParticleSystem(image, particle_settings["buffer_size"])
ps:setAreaSpread(string.lower(particle_settings["area_spread_distribution"]), particle_settings["area_spread_dx"] or 0 , particle_settings["area_spread_dy"] or 0)
ps:setBufferSize(particle_settings["buffer_size"] or 1)
local colors = {}
for i = 1, 8 do
if particle_settings["colors"][i][1] ~= 0 or particle_settings["colors"][i][2] ~= 0 or particle_settings["colors"][i][3] ~= 0 or particle_settings["colors"][i][4] ~= 0 then
table.insert(colors, particle_settings["colors"][i][1] or 0)
table.insert(colors, particle_settings["colors"][i][2] or 0)
table.insert(colors, particle_settings["colors"][i][3] or 0)
table.insert(colors, particle_settings["colors"][i][4] or 0)
end
end
ps:setColors(unpack(colors))
ps:setColors(unpack(colors))
ps:setDirection(math.rad(particle_settings["direction"] or 0))
ps:setEmissionRate(particle_settings["emission_rate"] or 0)
ps:setEmitterLifetime(particle_settings["emitter_lifetime"] or 0)
ps:setInsertMode(string.lower(particle_settings["insert_mode"]))
ps:setLinearAcceleration(particle_settings["linear_acceleration_xmin"] or 0, particle_settings["linear_acceleration_ymin"] or 0,
particle_settings["linear_acceleration_xmax"] or 0, particle_settings["linear_acceleration_ymax"] or 0)
if particle_settings["offsetx"] ~= 0 or particle_settings["offsety"] ~= 0 then
ps:setOffset(particle_settings["offsetx"], particle_settings["offsety"])
end
ps:setParticleLifetime(particle_settings["plifetime_min"] or 0, particle_settings["plifetime_max"] or 0)
ps:setRadialAcceleration(particle_settings["radialacc_min"] or 0, particle_settings["radialacc_max"] or 0)
ps:setRotation(math.rad(particle_settings["rotation_min"] or 0), math.rad(particle_settings["rotation_max"] or 0))
ps:setSizeVariation(particle_settings["size_variation"] or 0)
local sizes = {}
local sizes_i = 1
for i = 1, 8 do
if particle_settings["sizes"][i] == 0 then
if i < 8 and particle_settings["sizes"][i+1] == 0 then
sizes_i = i
break
end
end
end
if sizes_i > 1 then
for i = 1, sizes_i do table.insert(sizes, particle_settings["sizes"][i] or 0) end
ps:setSizes(unpack(sizes))
end
ps:setSpeed(particle_settings["speed_min"] or 0, particle_settings["speed_max"] or 0)
ps:setSpin(math.rad(particle_settings["spin_min"] or 0), math.rad(particle_settings["spin_max"] or 0))
ps:setSpinVariation(particle_settings["spin_variation"] or 0)
ps:setSpread(math.rad(particle_settings["spread"] or 0))
ps:setTangentialAcceleration(particle_settings["tangential_acceleration_min"] or 0, particle_settings["tangential_acceleration_max"] or 0)
return ps
end
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