Added all other random generators

This commit is contained in:
nucular 2014-05-07 21:05:20 +02:00
parent 09e552bdd5
commit 2562f39571

178
sfxr.lua
View File

@ -317,7 +317,7 @@ function sfxr.Sound:generate()
sample = math.sin(fp * 2 * math.pi)
elseif self.waveType == sfxr.NOISE then
sample = self.noiseBuffer[math.floor(phase * 32 / period) + 1]
sample = self.noiseBuffer[math.floor(phase * 32 / period) + 2]
end
-- Apply the lowpass filter to the sample
@ -491,6 +491,182 @@ function sfxr.Sound:mutate(amount, changeFreq)
if maybe(b) then self.repeatSpeed = self.repeatSpeed + random(-a, a) end
end
function sfxr.Sound:randomPickup()
self:resetParameters()
self.frequency.start = random(0.4, 0.5)
self.envelope.attack = 0
self.envelope.sustain = random(0, 0.1)
self.envelope.punch = random(0.3, 0.6)
self.envelope.decay = random(0.1, 0.5)
if maybe() then
self.change.speed = random(0.5, 0.7)
self.change.amount = random(0.4, 0.6)
end
end
function sfxr.Sound:randomLaser()
self:resetParameters()
self.waveType = trunc(random(0, 2))
if self.waveType == sfxr.SINE and maybe() then
self.waveType = trunc(random(0, 1))
end
if maybe(2) then
self.frequency.start = random(0.3, 0.9)
self.frequency.min = random(0, 0.1)
self.frequency.slide = -0.35 - random(0, 0.3)
else
self.frequency.start = random(0.5, 1)
self.frequency.min = clamp(self.frequency.start - 0.5 - random(0, 0.6), 0.2)
self.frequency.slide = -0.15 - random(0, 0.2)
end
if maybe() then
self.duty.ratio = random(0, 0.5)
self.duty.sweep = random(0, 0.2)
else
self.duty.ratio = random(0.4, 0.9)
self.duty.sweep = -random(0, 0.7)
end
self.envelope.attack = 0
self.envelope.sustain = random(0.1, 0.3)
self.envelope.decay = random(0, 0.4)
if maybe() then
self.envelope.punch = random(0, 0.3)
end
if maybe(2) then
self.phaser.offset = random(0, 0.2)
self.phaser.sweep = -random(0, 0.2)
end
if maybe() then
self.highpass.cutoff = random(0, 0.3)
end
end
function sfxr.Sound:randomExplosion()
self:resetParameters()
self.waveType = sfxr.NOISE
if maybe() then
self.frequency.start = random(0.1, 0.5)
self.frequency.slide = random(-0.1, 0.3)
else
self.frequency.start = random(0.2, 0.9)
self.frequency.slide = -0.2 - random(0, 0.2)
end
self.frequency.start = self.frequency.start^2
if maybe(4) then
self.frequency.slide = 0
end
if maybe(2) then
self.repeatSpeed = random(0.3, 0.8)
end
self.envelope.attack = 0
self.envelope.sustain = random(0.1, 0.4)
self.envelope.punch = random(0.2, 0.8)
self.envelope.decay = random(0, 0.5)
if maybe() then
self.phaser.offset = random(-0.3, 0.6)
self.phaser.sweep = -random(0, 0.3)
end
if maybe(2) then
self.change.speed = random(0.6, 0.8)
self.change.amount = random(0.8, 2.4)
elseif maybe() then
self.change.amount = random(0, 0.7)
self.change.speed = random(0, 0.6)
end
end
function sfxr.Sound:randomPowerup()
self:resetParameters()
if maybe() then
self.waveType = sfxr.SAWTOOTH
else
self.duty.ratio = random(0, 0.6)
end
if maybe() then
self.frequency.start = random(0.2, 0.5)
self.frequency.slide = random(0.1, 0.5)
self.repeatSpeed = random(0.4, 0.8)
else
self.frequency.start = random(0.2, 0.5)
self.frequency.slide = random(0.1, 0.5)
if maybe() then
self.change.amount = random(0, 0.7)
self.change.speed = random(0, 0.6)
end
end
self.envelope.attack = 0
self.envelope.sustain = random(0, 0.4)
self.envelope.decay = random(0.1, 0.5)
end
function sfxr.Sound:randomHit()
self:resetParameters()
self.waveType = trunc(random(0, 2))
if self.waveType == sfxr.SINE then
self.waveType = 3
elseif self.waveType == sfxr.SQUARE then
self.duty.ratio = random(0, 0.6)
end
self.frequency.start = random(0.2, 0.8)
self.frequency.glide = -0.3 - random(0, 0.4)
self.envelope.attack = 0
self.envelope.sustain = random(0, 0.1)
self.envelope.decay = random(0.1, 0.3)
if maybe() then
self.highpass.cutoff = random(0, 0.3)
end
end
function sfxr.Sound:randomJump()
self:resetParameters()
self.waveType = sfxr.SQUARE
self.duty.value = random(0, 0.6)
self.frequency.cutoff = random(0.3, 0.6)
self.frequency.slide = random(0.1, 0.3)
self.envelope.attack = 0
self.envelope.sustain = random(0.1, 0.4)
self.envelope.decay = random(0.1, 0.3)
if maybe() then
self.highpass.cutoff = random(0, 0.3)
end
if maybe() then
self.lowpass.cutoff = 1 - random(0, 0.6)
end
end
function sfxr.Sound:randomBlip()
self:resetParameters()
self.waveType = trunc(random(0, 1))
if self.waveType == 0 then
self.duty.ratio = random(0, 0.6)
end
self.frequency.start = random(0.2, 0.6)
self.envelope.attack = 0
self.envelope.sustain = random(0.1, 0.2)
self.envelope.decay = random(0, 0.2)
self.highpass.cutoff = 0.1
end
-- Constructor
function sfxr.newSound(...)