def boundaries(self):
desired = None
#if x value is on frame of settings['pygame_settings']['boundary'] or visable window
if self.position[0] < settings['pygame_settings']['boundary']:
desired = numpy.array([self.max_vel, self.velocity[1]])
steer = desired - self.velocity
steer = normalise(steer) * self.max_force
self.apply_force(steer)
#if x value is larger than the window or outside
elif self.position[0] > settings['pygame_settings'][
'window_width'] - settings['pygame_settings']['boundary']:
desired = numpy.array([-self.max_vel, self.velocity[1]])
steer = desired - self.velocity
steer = normalise(steer) * self.max_force
self.apply_force(steer)
#y value on boarder frame
if self.position[1] < settings['pygame_settings']['boundary']:
desired = numpy.array([self.velocity[0], self.max_vel])
steer = desired - self.velocity
steer = normalise(steer) * self.max_force
self.apply_force(steer)
# y value outside of window range
elif self.position[1] > settings['pygame_settings'][
'window_height'] - settings['pygame_settings']['boundary']:
desired = numpy.array([self.velocity[0], -self.max_vel])
steer = desired - self.velocity
steer = normalise(steer) * self.max_force
self.apply_force(steer)
def find(self, target):
desired_vel = numpy.add(target.position, -self.position)
desired_vel = normalise(desired_vel) * self.max_vel
steering_force = numpy.add(desired_vel, -self.velocity)
steering_force = normalise(steering_force) * self.max_force
return (steering_force)
def fight(self, itemList):
closest = None
closest_distance = max(settings['pygame_settings']['window_width'],
settings['pygame_settings']['window_height'])
posx = self.position[0]
posy = self.position[1]
foodIndex = len(itemList) - 1
for i in itemList[::-1]:
item_x = i.position[0]
item_y = i.position[1]
distance = math.hypot(posx - item_x, posy - item_y)
if distance < 4:
i.health = i.health - self.power
if (i.health < 0):
self.health += 40
if distance < closest_distance:
closest_distance = distance
closest = i
foodIndex -= 1
prey = self.find(closest)
seek = normalise(prey) * self.max_force
self.apply_force(seek)
def eat(self,itemList, index):
if index == 0:
hp = 40
else:
hp = -30
closest = None
closest_distance = settings['pygame_settings']['window_width']
posx = self.position[0]
posy = self.position[1]
foodIndex = len(itemList)-1
for i in itemList[::-1]:
item_x = i[0]
item_y = i[1]
distance = math.hypot(posx-item_x, posy-item_y)
if distance < 5:
itemList.pop(foodIndex)
self.health += hp
if distance < closest_distance:
closest_distance = distance
closest = i
foodIndex -= 1
if closest_distance < self.dna[2]:
prey = self.find(closest)
prey *= self.dna[index]
seek = normalise(prey)*self.max_force
self.apply_force(seek)
def update(self):
self.velocity += self.acceleration
self.velocity = normalise(self.velocity) * self.max_vel
self.position += self.velocity
self.acceleration *= 0
self.health -= 1
self.health = min(settings['predator']['health'], self.health)
def update(self):
self.velocity += self.acceleration
self.velocity = normalise(self.velocity)*self.max_vel
self.position += self.velocity
self.acceleration *= 0 #resets acceleration to 0
self.health -= 0.2
self.health = min(settings['organism']['health'], self.health)
self.fitness += 1