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Plasma effect: Difference between revisions
→{{header|Processing}}: adding Processing Python mode
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'''It can be played on line''' :<BR> [https://www.openprocessing.org/sketch/873932/ here.]
==={{header|Processing Python mode}}===
<lang python>"""
Plasmas with Palette Looping
https://lodev.org/cgtutor/plasma.html#Plasmas_with_Palette_Looping_
"""
pal = [0] * 128
r = 42
g = 84
b = 126
rd = gd = bd = False
def setup():
global buffer
size(600, 600)
frameRate(25)
buffer = [None] * width * height
for x in range(width):
for y in range(width):
value = int(((128 + (128 * sin(x / 32.0)))
+ (128 + (128 * cos(y / 32.0)))
+ (128 + (128 * sin(sqrt((x * x + y * y)) / 32.0)))) / 4)
buffer[x + y * width] = value
def draw():
global r, g, b, rd, gd, bd
if r > 128: rd = True
if not rd: r+=1
else: r-=1
if r < 0: rd = False
if g > 128: gd = True
if not gd: g+=1
else: g-=1
if r < 0: gd = False
if b > 128: bd = True
if not bd: b+=1
else: b-=1
if b < 0: bd = False
for i in range(128):
s_1 = sin(i * PI / 25)
s_2 = sin(i * PI / 50 + PI / 4)
pal[i] = color(r + s_1 * 128, g + s_2 * 128, b + s_1 * 128)
loadPixels()
for i, b in enumerate(buffer):
pixels[i] = pal[(b + frameCount) % 127]
updatePixels()
</lang>
=={{header|Python}}==
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