Plant Mimic

I was trying to mimic plant root-growth behavior. It all starts with one root, which then has a chance to get offspring (0 – 4). If it gets offspring, the offspring also gets a chance for more offspring. To reduce lag there is a maximum to the currently growing roots (100). Due to the random behavior, it is possible for the plant to die at the start or – theoretically – in an advanced state.

``````# Python 2.7.7 Code
# Pygame 1.9.1 (for Python 2.7.7)
# Jonathan Frech 11th of April, 2015``````

``````# gets the position on a circle
# circle center                           : '_pos'
# angle from center to point on the circle: '_angle'
return [
]

# validates color integer
# extra feature: _min and _max implementation
def colorValid(_color, _min = 0, _max = 255):
newColor = math.fabs(_color)
n = _max - _min

if newColor > n:
if int(newColor / n) % 2 == 0:
newColor = newColor % n
else:
newColor = n - (newColor % n)

return int(newColor) + _min

# entity class
class entity():
# init
def __init__(self, _pos, _distance, _angle):
self.pos = _pos
self.distance = _distance
self.angle = _angle

self.color = [255, 255, 255]
#self.color = [random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)]

self.destination = getCirclePos(self.pos, self.distance, self.angle)

# tick function
def tick(self):
# calculate distance to destination (for smooth movement)
dist = [
self.destination[0] - self.pos[0],
self.destination[1] - self.pos[1]
]

# move to destination (/ 5.0 defines the speed)
self.pos[0] += dist[0] / 20.0
self.pos[1] += dist[1] / 20.0

# if destination is reached, die and create offspring
if dist[0] < .1 and dist[1]  100:
main.ENTITIES.pop(random.randint(0, len(main.ENTITIES) - 1))

# render function
def render():
# fill
main.SCREEN.fill([0, 0, 0])

# render entities
for _ in main.ENTITIES:
_.render(main.SURF)

# blit and flip
main.SCREEN.blit(pygame.transform.scale(main.SURF, [int(main.WIDTH * main.SCALE), int(main.HEIGHT * main.SCALE)]), [0, 0])
pygame.display.flip()

# run function (uses tick() and render())
def run():
ticksPerSecond = 60
lastTime = time.time() * 1000000000
nsPerTick =  1000000000.0 / float(ticksPerSecond)

ticks = 0
frames = 0

lastTimer = time.time() * 1000
delta = 0.0

while True:
now = time.time() * 1000000000
delta += float(now - lastTime) / float(nsPerTick)
lastTime = now
shouldRender = False

while delta >= 1:
ticks += 1
main.TICKS += 1
tick()
delta -= 1
shouldRender = True

if shouldRender:
frames += 1
render()

if time.time() * 1000 - lastTimer >= 1000:
lastTimer += 1000

# debug
#print("Frames: " + str(frames) + ", ticks: " + str(ticks))

frames = 0
ticks = 0

# dummy class for global variables
class dummy():
pass

# importing needed modules
import pygame, sys, time, math, os, random

# main dummy
main = dummy()
main.TICKS = 0

main.resolution = 1
main.WIDTH = 1080 / main.resolution
main.HEIGHT = 720 / main.resolution
main.SCALE = 1 * main.resolution

main.SIZE = [main.WIDTH, main.HEIGHT]
main.SCALEDSIZE = [int(main.WIDTH * main.SCALE), int(main.HEIGHT * main.SCALE)]

main.SURF = pygame.Surface(main.SIZE)
main.SURF.fill([0, 0, 0])

main.SCREEN = pygame.display.set_mode(main.SCALEDSIZE)
pygame.display.set_caption("Plant Mimic")

# entity start
main.ENTITIES = [
entity([main.WIDTH / 2, 0], random.randint(10, 20), random.randint(181, 359))
]

# start program
run()``````