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@villares
Created May 9, 2017 01:40
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"""
A Processing implementation of Game of Life By Joan Soler-Adillon
Press SPACE BAR to pause and change the cell's values with the mouse
On pause, click to activate/deactivate cells
Press R to randomly reset the cells' grid
Press C to clear the cells' grid
The original Game of Life was created by John Conway in 1970.
"""
cellSize = 5 # Size of cells
# How likely for a cell to be alive at start (in percentage)
probabilityOfAliveAtStart = 15
# Variables for timer
interval = 100
lastRecordedTime = 0
# Colors for active/inactive cells
alive = color(0, 200, 0)
dead = color(0)
pause = False # Pause
def setup():
global grid_w, grid_h
global cells # Array of cells
global cellsBuffer # Buffer while changing the others in the interations
size(360, 360)
# Instantiate arrays
grid_w, grid_h = int(width / cellSize), int(height / cellSize)
cells = [[None] * grid_w for _ in range(grid_h)]
cellsBuffer = [[None] * grid_w for _ in range(grid_h)]
# This stroke will draw the background grid
stroke(48)
noSmooth()
# Initialization of cells
for x in range(grid_w):
for y in range(grid_h):
state = random(100)
if state > probabilityOfAliveAtStart:
state = 0
else:
state = 1
cells[x][y] = state # Save state of each cell
background(0) # Fill in black in case cells don't cover all the windows
def draw():
global lastRecordedTime
# Draw grid
for x in range(grid_w):
for y in range(grid_h):
if cells[x][y] == 1:
fill(alive) # If alive
else:
fill(dead) # If dead
rect(x * cellSize, y * cellSize, cellSize, cellSize)
# Iterate if timer ticks
if millis() - lastRecordedTime > interval:
if not pause:
iteration()
lastRecordedTime = millis()
# Create new cells manually on pause
if pause and mousePressed:
# Map and adef out of bound errors
xCellOver = int(map(mouseX, 0, width, 0, width / cellSize))
xCellOver = constrain(xCellOver, 0, width / cellSize - 1)
yCellOver = int(map(mouseY, 0, height, 0, height / cellSize))
yCellOver = constrain(yCellOver, 0, height / cellSize - 1)
# Check against cells in buffer
if cellsBuffer[xCellOver][yCellOver] == 1: # Cell is alive
cells[xCellOver][yCellOver] = 0 # Kill
fill(dead) # Fill with kill color
else: # Cell is dead
cells[xCellOver][yCellOver] = 1 # Make alive
fill(alive) # Fill alive color
# And then save to buffer once mouse goes up
elif pause and not mousePressed:
# Save cells to buffer
# (so we opeate with one array keeping the other intact)
for x in range(grid_w):
for y in range(grid_h):
cellsBuffer[x][y] = cells[x][y]
def iteration(): # When the clock ticks
# Save cells to buffer
# (so we opeate with one array keeping the other intact)
for x in range(grid_w):
for y in range(grid_h):
cellsBuffer[x][y] = cells[x][y]
# Visit each cell:
for x in range(grid_w):
for y in range(grid_h):
# And visit all the neighbours of each cell
neighbours = 0 # We'll count the neighbours
for xx in range(x - 1, x + 2):
for yy in range(y - 1, y + 2):
# Make sure you are not out of bounds
if 0 <= xx < grid_w and 0 <= yy < grid_w:
# Make sure to check against self
if not (xx == x and yy == y):
if cellsBuffer[xx][yy] == 1:
# Check alive neighbours and count them
neighbours = neighbours + 1
if cellsBuffer[x][y] == 1:
if neighbours < 2 or neighbours > 3:
cells[x][y] = 0 # Die unless it has 2 or 3 neighbours
else: # The cell is dead: make it live if necessary
if neighbours == 3:
cells[x][y] = 1 # Only if it has 3 neighbours
def keyPressed():
global pause
if key == 'r' or key == 'R':
# Restart: reinitialization of cells
for x in range(grid_w):
for y in range(grid_h):
state = random(100)
if state > probabilityOfAliveAtStart:
state = 0
else:
state = 1
cells[x][y] = state # Save state of each cell
if key == ' ': # On/off of pause
pause = not pause
if (key == 'c' or key == 'C'): # Clear all
for x in range(grid_w):
for y in range(grid_h):
cells[x][y] = 0 # Save all to zero
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