graphicsDisplay.py (original)
# graphicsDisplay.py
# ——————
# Licensing Information: Please do not distribute or publish solutions to this
# project. You are free to use and extend these projects for educational
# purposes. The Pacman AI projects were developed at UC Berkeley, primarily by
# John DeNero (denero@cs.berkeley.edu) and Dan Klein (klein@cs.berkeley.edu).
# For more info, see http://inst.eecs.berkeley.edu/~cs188/sp09/pacman.html
from graphicsUtils import *
import math, time
from game import Directions
###########################
# GRAPHICS DISPLAY CODE #
###########################
# Most code by Dan Klein and John Denero written or rewritten for cs188, UC Berkeley.
# Some code from a Pacman implementation by LiveWires, and used / modified with permission.
DEFAULT_GRID_SIZE = 30.0
INFO_PANE_HEIGHT = 35
BACKGROUND_COLOR = formatColor(0,0,0)
WALL_COLOR = formatColor(0.0/255.0, 51.0/255.0, 255.0/255.0)
INFO_PANE_COLOR = formatColor(.4,.4,0)
SCORE_COLOR = formatColor(.9, .9, .9)
PACMAN_OUTLINE_WIDTH = 2
PACMAN_CAPTURE_OUTLINE_WIDTH = 4
GHOST_COLORS = []
GHOST_COLORS.append(formatColor(.9,0,0)) # Red
GHOST_COLORS.append(formatColor(0,.3,.9)) # Blue
GHOST_COLORS.append(formatColor(.98,.41,.07)) # Orange
GHOST_COLORS.append(formatColor(.1,.75,.7)) # Green
GHOST_COLORS.append(formatColor(1.0,0.6,0.0)) # Yellow
GHOST_COLORS.append(formatColor(.4,0.13,0.91)) # Purple
TEAM_COLORS = GHOST_COLORS[:2]
GHOST_SHAPE = [
( 0, 0.3 ),
( 0.25, 0.75 ),
( 0.5, 0.3 ),
( 0.75, 0.75 ),
( 0.75, -0.5 ),
( 0.5, -0.75 ),
(-0.5, -0.75 ),
(-0.75, -0.5 ),
(-0.75, 0.75 ),
(-0.5, 0.3 ),
(-0.25, 0.75 )
]
GHOST_SIZE = 0.65
SCARED_COLOR = formatColor(1,1,1)
GHOST_VEC_COLORS = map(colorToVector, GHOST_COLORS)
PACMAN_COLOR = formatColor(255.0/255.0,255.0/255.0,61.0/255)
PACMAN_SCALE = 0.5
#pacman_speed = 0.25
# Food
FOOD_COLOR = formatColor(1,1,1)
FOOD_SIZE = 0.1
# Laser
LASER_COLOR = formatColor(1,0,0)
LASER_SIZE = 0.02
# Capsule graphics
CAPSULE_COLOR = formatColor(1,1,1)
CAPSULE_SIZE = 0.25
# Drawing walls
WALL_RADIUS = 0.15
class InfoPane:
def __init__(self, layout, gridSize):
self.gridSize = gridSize
self.width = (layout.width) * gridSize
self.base = (layout.height + 1) * gridSize
self.height = INFO_PANE_HEIGHT
self.fontSize = 24
self.textColor = PACMAN_COLOR
self.drawPane()
def toScreen(self, pos, y = None):
“””
Translates a point relative from the bottom left of the info pane.
“””
if y == None:
x,y = pos
else:
x = pos
x = self.gridSize + x # Margin
y = self.base + y
return x,y
def drawPane(self):
self.scoreText = text( self.toScreen(0, 0 ), self.textColor, “SCORE: 0”, “Times”, self.fontSize, “bold”)
def initializeGhostDistances(self, distances):
self.ghostDistanceText = []
size = 20
if self.width < 240:
size = 12
if self.width < 160:
size = 10
for i, d in enumerate(distances):
t = text( self.toScreen(self.width/2 + self.width/8 * i, 0), GHOST_COLORS[i+1], d, "Times", size, "bold")
self.ghostDistanceText.append(t)
def updateScore(self, score):
changeText(self.scoreText, "SCORE: % 4d" % score)
def setTeam(self, isBlue):
text = "RED TEAM"
if isBlue: text = "BLUE TEAM"
self.teamText = text( self.toScreen(300, 0 ), self.textColor, text, "Times", self.fontSize, "bold")
def updateGhostDistances(self, distances):
if len(distances) == 0: return
if 'ghostDistanceText' not in dir(self): self.initializeGhostDistances(distances)
else:
for i, d in enumerate(distances):
changeText(self.ghostDistanceText[i], d)
def drawGhost(self):
pass
def drawPacman(self):
pass
def drawWarning(self):
pass
def clearIcon(self):
pass
def updateMessage(self, message):
pass
def clearMessage(self):
pass
class PacmanGraphics:
def __init__(self, zoom=1.0, frameTime=0.0, capture=False):
self.have_window = 0
self.currentGhostImages = {}
self.pacmanImage = None
self.zoom = zoom
self.gridSize = DEFAULT_GRID_SIZE * zoom
self.capture = capture
self.frameTime = frameTime
def initialize(self, state, isBlue = False):
self.isBlue = isBlue
self.startGraphics(state)
# self.drawDistributions(state)
self.distributionImages = None # Initialized lazily
self.drawStaticObjects(state)
self.drawAgentObjects(state)
# Information
self.previousState = state
def startGraphics(self, state):
self.layout = state.layout
layout = self.layout
self.width = layout.width
self.height = layout.height
self.make_window(self.width, self.height)
self.infoPane = InfoPane(layout, self.gridSize)
self.currentState = layout
def drawDistributions(self, state):
walls = state.layout.walls
dist = []
for x in range(walls.width):
distx = []
dist.append(distx)
for y in range(walls.height):
( screen_x, screen_y ) = self.to_screen( (x, y) )
block = square( (screen_x, screen_y),
0.5 * self.gridSize,
color = BACKGROUND_COLOR,
filled = 1, behind=2)
distx.append(block)
self.distributionImages = dist
def drawStaticObjects(self, state):
layout = self.layout
self.drawWalls(layout.walls)
self.food = self.drawFood(layout.food)
self.capsules = self.drawCapsules(layout.capsules)
refresh()
def drawAgentObjects(self, state):
self.agentImages = [] # (agentState, image)
for index, agent in enumerate(state.agentStates):
if agent.isPacman:
image = self.drawPacman(agent, index)
self.agentImages.append( (agent, image) )
else:
image = self.drawGhost(agent, index)
self.agentImages.append( (agent, image) )
refresh()
def swapImages(self, agentIndex, newState):
"""
Changes an image from a ghost to a pacman or vis versa (for capture)
"""
prevState, prevImage = self.agentImages[agentIndex]
for item in prevImage: remove_from_screen(item)
if newState.isPacman:
image = self.drawPacman(newState, agentIndex)
self.agentImages[agentIndex] = (newState, image )
else:
image = self.drawGhost(newState, agentIndex)
self.agentImages[agentIndex] = (newState, image )
refresh()
def update(self, newState):
agentIndex = newState._agentMoved
agentState = newState.agentStates[agentIndex]
if self.agentImages[agentIndex][0].isPacman != agentState.isPacman: self.swapImages(agentIndex, agentState)
prevState, prevImage = self.agentImages[agentIndex]
if agentState.isPacman:
self.animatePacman(agentState, prevState, prevImage)
else:
self.moveGhost(agentState, agentIndex, prevState, prevImage)
self.agentImages[agentIndex] = (agentState, prevImage)
if newState._foodEaten != None:
self.removeFood(newState._foodEaten, self.food)
if newState._capsuleEaten != None:
self.removeCapsule(newState._capsuleEaten, self.capsules)
self.infoPane.updateScore(newState.score)
if 'ghostDistances' in dir(newState):
self.infoPane.updateGhostDistances(newState.ghostDistances)
def make_window(self, width, height):
grid_width = (width-1) * self.gridSize
grid_height = (height-1) * self.gridSize
screen_width = 2*self.gridSize + grid_width
screen_height = 2*self.gridSize + grid_height + INFO_PANE_HEIGHT
begin_graphics(screen_width,
screen_height,
BACKGROUND_COLOR,
"CS188 Pacman")
def drawPacman(self, pacman, index):
position = self.getPosition(pacman)
screen_point = self.to_screen(position)
endpoints = self.getEndpoints(self.getDirection(pacman))
width = PACMAN_OUTLINE_WIDTH
outlineColor = PACMAN_COLOR
fillColor = PACMAN_COLOR
if self.capture:
outlineColor = TEAM_COLORS[index % 2]
fillColor = GHOST_COLORS[index]
width = PACMAN_CAPTURE_OUTLINE_WIDTH
return [circle(screen_point, PACMAN_SCALE * self.gridSize,
fillColor = fillColor, outlineColor = outlineColor,
endpoints = endpoints,
width = width)]
def getEndpoints(self, direction, position=(0,0)):
x, y = position
pos = x - int(x) + y - int(y)
width = 30 + 80 * math.sin(math.pi* pos)
delta = width / 2
if (direction == 'West'):
endpoints = (180+delta, 180-delta)
elif (direction == 'North'):
endpoints = (90+delta, 90-delta)
elif (direction == 'South'):
endpoints = (270+delta, 270-delta)
else:
endpoints = (0+delta, 0-delta)
return endpoints
def movePacman(self, position, direction, image):
screenPosition = self.to_screen(position)
endpoints = self.getEndpoints( direction, position )
r = PACMAN_SCALE * self.gridSize
moveCircle(image[0], screenPosition, r, endpoints)
refresh()
def animatePacman(self, pacman, prevPacman, image):
if self.frameTime < 0:
print 'Press any key to step forward, "q" to play'
keys = wait_for_keys()
if 'q' in keys:
self.frameTime = 0.1
if self.frameTime > 0.01 or self.frameTime < 0:
start = time.time()
fx, fy = self.getPosition(prevPacman)
px, py = self.getPosition(pacman)
frames = 4.0
for i in range(1,int(frames) + 1):
pos = px*i/frames + fx*(frames-i)/frames, py*i/frames + fy*(frames-i)/frames
self.movePacman(pos, self.getDirection(pacman), image)
refresh()
sleep(abs(self.frameTime) / frames)
else:
self.movePacman(self.getPosition(pacman), self.getDirection(pacman), image)
refresh()
def getGhostColor(self, ghost, ghostIndex):
if ghost.scaredTimer > 0:
return SCARED_COLOR
else:
return GHOST_COLORS[ghostIndex]
def drawGhost(self, ghost, agentIndex):
pos = self.getPosition(ghost)
dir = self.getDirection(ghost)
(screen_x, screen_y) = (self.to_screen(pos) )
coords = []
for (x, y) in GHOST_SHAPE:
coords.append((x*self.gridSize*GHOST_SIZE + screen_x, y*self.gridSize*GHOST_SIZE + screen_y))
colour = self.getGhostColor(ghost, agentIndex)
body = polygon(coords, colour, filled = 1)
WHITE = formatColor(1.0, 1.0, 1.0)
BLACK = formatColor(0.0, 0.0, 0.0)
dx = 0
dy = 0
if dir == ‘North’:
dy = -0.2
if dir == ‘South’:
dy = 0.2
if dir == ‘East’:
dx = 0.2
if dir == ‘West’:
dx = -0.2
leftEye = circle((screen_x+self.gridSize*GHOST_SIZE*(-0.3+dx/1.5), screen_y-self.gridSize*GHOST_SIZE*(0.3-dy/1.5)), self.gridSize*GHOST_SIZE*0.2, WHITE, WHITE)
rightEye = circle((screen_x+self.gridSize*GHOST_SIZE*(0.3+dx/1.5), screen_y-self.gridSize*GHOST_SIZE*(0.3-dy/1.5)), self.gridSize*GHOST_SIZE*0.2, WHITE, WHITE)
leftPupil = circle((screen_x+self.gridSize*GHOST_SIZE*(-0.3+dx), screen_y-self.gridSize*GHOST_SIZE*(0.3-dy)), self.gridSize*GHOST_SIZE*0.08, BLACK, BLACK)
rightPupil = circle((screen_x+self.gridSize*GHOST_SIZE*(0.3+dx), screen_y-self.gridSize*GHOST_SIZE*(0.3-dy)), self.gridSize*GHOST_SIZE*0.08, BLACK, BLACK)
ghostImageParts = []
ghostImageParts.append(body)
ghostImageParts.append(leftEye)
ghostImageParts.append(rightEye)
ghostImageParts.append(leftPupil)
ghostImageParts.append(rightPupil)
return ghostImageParts
def moveEyes(self, pos, dir, eyes):
(screen_x, screen_y) = (self.to_screen(pos) )
dx = 0
dy = 0
if dir == ‘North’:
dy = -0.2
if dir == ‘South’:
dy = 0.2
if dir == ‘East’:
dx = 0.2
if dir == ‘West’:
dx = -0.2
moveCircle(eyes[0],(screen_x+self.gridSize*GHOST_SIZE*(-0.3+dx/1.5), screen_y-self.gridSize*GHOST_SIZE*(0.3-dy/1.5)), self.gridSize*GHOST_SIZE*0.2)
moveCircle(eyes[1],(screen_x+self.gridSize*GHOST_SIZE*(0.3+dx/1.5), screen_y-self.gridSize*GHOST_SIZE*(0.3-dy/1.5)), self.gridSize*GHOST_SIZE*0.2)
moveCircle(eyes[2],(screen_x+self.gridSize*GHOST_SIZE*(-0.3+dx), screen_y-self.gridSize*GHOST_SIZE*(0.3-dy)), self.gridSize*GHOST_SIZE*0.08)
moveCircle(eyes[3],(screen_x+self.gridSize*GHOST_SIZE*(0.3+dx), screen_y-self.gridSize*GHOST_SIZE*(0.3-dy)), self.gridSize*GHOST_SIZE*0.08)
def moveGhost(self, ghost, ghostIndex, prevGhost, ghostImageParts):
old_x, old_y = self.to_screen(self.getPosition(prevGhost))
new_x, new_y = self.to_screen(self.getPosition(ghost))
delta = new_x – old_x, new_y – old_y
for ghostImagePart in ghostImageParts:
move_by(ghostImagePart, delta)
refresh()
if ghost.scaredTimer > 0:
color = SCARED_COLOR
else:
color = GHOST_COLORS[ghostIndex]
edit(ghostImageParts[0], (‘fill’, color), (‘outline’, color))
self.moveEyes(self.getPosition(ghost), self.getDirection(ghost), ghostImageParts[-4:])
refresh()
def getPosition(self, agentState):
if agentState.configuration == None: return (-1000, -1000)
return agentState.getPosition()
def getDirection(self, agentState):
if agentState.configuration == None: return Directions.STOP
return agentState.configuration.getDirection()
def finish(self):
end_graphics()
def to_screen(self, point):
( x, y ) = point
#y = self.height – y
x = (x + 1)*self.gridSize
y = (self.height – y)*self.gridSize
return ( x, y )
# Fixes some TK issue with off-center circles
def to_screen2(self, point):
( x, y ) = point
#y = self.height – y
x = (x + 1)*self.gridSize
y = (self.height – y)*self.gridSize
return ( x, y )
def drawWalls(self, wallMatrix):
wallColor = WALL_COLOR
for xNum, x in enumerate(wallMatrix):
if self.capture and (xNum * 2) < wallMatrix.width: wallColor = TEAM_COLORS[0]
if self.capture and (xNum * 2) >= wallMatrix.width: wallColor = TEAM_COLORS[1]
for yNum, cell in enumerate(x):
if cell: # There’s a wall here
pos = (xNum, yNum)
screen = self.to_screen(pos)
screen2 = self.to_screen2(pos)
# draw each quadrant of the square based on adjacent walls
wIsWall = self.isWall(xNum-1, yNum, wallMatrix)
eIsWall = self.isWall(xNum+1, yNum, wallMatrix)
nIsWall = self.isWall(xNum, yNum+1, wallMatrix)
sIsWall = self.isWall(xNum, yNum-1, wallMatrix)
nwIsWall = self.isWall(xNum-1, yNum+1, wallMatrix)
swIsWall = self.isWall(xNum-1, yNum-1, wallMatrix)
neIsWall = self.isWall(xNum+1, yNum+1, wallMatrix)
seIsWall = self.isWall(xNum+1, yNum-1, wallMatrix)
# NE quadrant
if (not nIsWall) and (not eIsWall):
# inner circle
circle(screen2, WALL_RADIUS * self.gridSize, wallColor, wallColor, (0,91), ‘arc’)
if (nIsWall) and (not eIsWall):
# vertical line
line(add(screen, (self.gridSize*WALL_RADIUS, 0)), add(screen, (self.gridSize*WALL_RADIUS, self.gridSize*(-0.5)-1)), wallColor)
if (not nIsWall) and (eIsWall):
# horizontal line
line(add(screen, (0, self.gridSize*(-1)*WALL_RADIUS)), add(screen, (self.gridSize*0.5+1, self.gridSize*(-1)*WALL_RADIUS)), wallColor)
if (nIsWall) and (eIsWall) and (not neIsWall):
# outer circle
circle(add(screen2, (self.gridSize*2*WALL_RADIUS, self.gridSize*(-2)*WALL_RADIUS)), WALL_RADIUS * self.gridSize-1, wallColor, wallColor, (180,271), ‘arc’)
line(add(screen, (self.gridSize*2*WALL_RADIUS-1, self.gridSize*(-1)*WALL_RADIUS)), add(screen, (self.gridSize*0.5+1, self.gridSize*(-1)*WALL_RADIUS)), wallColor)
line(add(screen, (self.gridSize*WALL_RADIUS, self.gridSize*(-2)*WALL_RADIUS+1)), add(screen, (self.gridSize*WALL_RADIUS, self.gridSize*(-0.5))), wallColor)
# NW quadrant
if (not nIsWall) and (not wIsWall):
# inner circle
circle(screen2, WALL_RADIUS * self.gridSize, wallColor, wallColor, (90,181), ‘arc’)
if (nIsWall) and (not wIsWall):
# vertical line
line(add(screen, (self.gridSize*(-1)*WALL_RADIUS, 0)), add(screen, (self.gridSize*(-1)*WALL_RADIUS, self.gridSize*(-0.5)-1)), wallColor)
if (not nIsWall) and (wIsWall):
# horizontal line
line(add(screen, (0, self.gridSize*(-1)*WALL_RADIUS)), add(screen, (self.gridSize*(-0.5)-1, self.gridSize*(-1)*WALL_RADIUS)), wallColor)
if (nIsWall) and (wIsWall) and (not nwIsWall):
# outer circle
circle(add(screen2, (self.gridSize*(-2)*WALL_RADIUS, self.gridSize*(-2)*WALL_RADIUS)), WALL_RADIUS * self.gridSize-1, wallColor, wallColor, (270,361), ‘arc’)
line(add(screen, (self.gridSize*(-2)*WALL_RADIUS+1, self.gridSize*(-1)*WALL_RADIUS)), add(screen, (self.gridSize*(-0.5), self.gridSize*(-1)*WALL_RADIUS)), wallColor)
line(add(screen, (self.gridSize*(-1)*WALL_RADIUS, self.gridSize*(-2)*WALL_RADIUS+1)), add(screen, (self.gridSize*(-1)*WALL_RADIUS, self.gridSize*(-0.5))), wallColor)
# SE quadrant
if (not sIsWall) and (not eIsWall):
# inner circle
circle(screen2, WALL_RADIUS * self.gridSize, wallColor, wallColor, (270,361), ‘arc’)
if (sIsWall) and (not eIsWall):
# vertical line
line(add(screen, (self.gridSize*WALL_RADIUS, 0)), add(screen, (self.gridSize*WALL_RADIUS, self.gridSize*(0.5)+1)), wallColor)
if (not sIsWall) and (eIsWall):
# horizontal line
line(add(screen, (0, self.gridSize*(1)*WALL_RADIUS)), add(screen, (self.gridSize*0.5+1, self.gridSize*(1)*WALL_RADIUS)), wallColor)
if (sIsWall) and (eIsWall) and (not seIsWall):
# outer circle
circle(add(screen2, (self.gridSize*2*WALL_RADIUS, self.gridSize*(2)*WALL_RADIUS)), WALL_RADIUS * self.gridSize-1, wallColor, wallColor, (90,181), ‘arc’)
line(add(screen, (self.gridSize*2*WALL_RADIUS-1, self.gridSize*(1)*WALL_RADIUS)), add(screen, (self.gridSize*0.5, self.gridSize*(1)*WALL_RADIUS)), wallColor)
line(add(screen, (self.gridSize*WALL_RADIUS, self.gridSize*(2)*WALL_RADIUS-1)), add(screen, (self.gridSize*WALL_RADIUS, self.gridSize*(0.5))), wallColor)
# SW quadrant
if (not sIsWall) and (not wIsWall):
# inner circle
circle(screen2, WALL_RADIUS * self.gridSize, wallColor, wallColor, (180,271), ‘arc’)
if (sIsWall) and (not wIsWall):
# vertical line
line(add(screen, (self.gridSize*(-1)*WALL_RADIUS, 0)), add(screen, (self.gridSize*(-1)*WALL_RADIUS, self.gridSize*(0.5)+1)), wallColor)
if (not sIsWall) and (wIsWall):
# horizontal line
line(add(screen, (0, self.gridSize*(1)*WALL_RADIUS)), add(screen, (self.gridSize*(-0.5)-1, self.gridSize*(1)*WALL_RADIUS)), wallColor)
if (sIsWall) and (wIsWall) and (not swIsWall):
# outer circle
circle(add(screen2, (self.gridSize*(-2)*WALL_RADIUS, self.gridSize*(2)*WALL_RADIUS)), WALL_RADIUS * self.gridSize-1, wallColor, wallColor, (0,91), ‘arc’)
line(add(screen, (self.gridSize*(-2)*WALL_RADIUS+1, self.gridSize*(1)*WALL_RADIUS)), add(screen, (self.gridSize*(-0.5), self.gridSize*(1)*WALL_RADIUS)), wallColor)
line(add(screen, (self.gridSize*(-1)*WALL_RADIUS, self.gridSize*(2)*WALL_RADIUS-1)), add(screen, (self.gridSize*(-1)*WALL_RADIUS, self.gridSize*(0.5))), wallColor)
def isWall(self, x, y, walls):
if x < 0 or y < 0:
return False
if x >= walls.width or y >= walls.height:
return False
return walls[x][y]
def drawFood(self, foodMatrix ):
foodImages = []
color = FOOD_COLOR
for xNum, x in enumerate(foodMatrix):
if self.capture and (xNum * 2) <= foodMatrix.width: color = TEAM_COLORS[0]
if self.capture and (xNum * 2) > foodMatrix.width: color = TEAM_COLORS[1]
imageRow = []
foodImages.append(imageRow)
for yNum, cell in enumerate(x):
if cell: # There’s food here
screen = self.to_screen((xNum, yNum ))
dot = circle( screen,
FOOD_SIZE * self.gridSize,
outlineColor = color, fillColor = color,
width = 1)
imageRow.append(dot)
else:
imageRow.append(None)
return foodImages
def drawCapsules(self, capsules ):
capsuleImages = {}
for capsule in capsules:
( screen_x, screen_y ) = self.to_screen(capsule)
dot = circle( (screen_x, screen_y),
CAPSULE_SIZE * self.gridSize,
outlineColor = CAPSULE_COLOR,
fillColor = CAPSULE_COLOR,
width = 1)
capsuleImages[capsule] = dot
return capsuleImages
def removeFood(self, cell, foodImages ):
x, y = cell
remove_from_screen(foodImages[x][y])
def removeCapsule(self, cell, capsuleImages ):
x, y = cell
remove_from_screen(capsuleImages[(x, y)])
def drawExpandedCells(self, cells):
“””
Draws an overlay of expanded grid positions for search agents
“””
n = float(len(cells))
baseColor = [1.0, 0.0, 0.0]
self.clearExpandedCells()
self.expandedCells = []
for k, cell in enumerate(cells):
screenPos = self.to_screen( cell)
cellColor = formatColor(*[(n-k) * c * .5 / n + .25 for c in baseColor])
block = square(screenPos,
0.5 * self.gridSize,
color = cellColor,
filled = 1, behind=2)
self.expandedCells.append(block)
if self.frameTime < 0:
refresh()
def clearExpandedCells(self):
if 'expandedCells' in dir(self) and len(self.expandedCells) > 0:
for cell in self.expandedCells:
remove_from_screen(cell)
def updateDistributions(self, distributions):
“Draws an agent’s belief distributions”
if self.distributionImages == None:
self.drawDistributions(self.previousState)
for x in range(len(self.distributionImages)):
for y in range(len(self.distributionImages[0])):
image = self.distributionImages[x][y]
weights = [dist[ (x,y) ] for dist in distributions]
if sum(weights) != 0:
pass
# Fog of war
color = [0.0,0.0,0.0]
colors = GHOST_VEC_COLORS[1:] # With Pacman
if self.capture: colors = GHOST_VEC_COLORS
for weight, gcolor in zip(weights, colors):
color = [min(1.0, c + 0.95 * g * weight ** .3) for c,g in zip(color, gcolor)]
changeColor(image, formatColor(*color))
refresh()
class FirstPersonPacmanGraphics(PacmanGraphics):
def __init__(self, zoom = 1.0, showGhosts = True, capture = False, frameTime=0):
PacmanGraphics.__init__(self, zoom, frameTime=frameTime)
self.showGhosts = showGhosts
self.capture = capture
def initialize(self, state, isBlue = False):
self.isBlue = isBlue
PacmanGraphics.startGraphics(self, state)
# Initialize distribution images
walls = state.layout.walls
dist = []
self.layout = state.layout
# Draw the rest
self.distributionImages = None # initialize lazily
self.drawStaticObjects(state)
self.drawAgentObjects(state)
# Information
self.previousState = state
def lookAhead(self, config, state):
if config.getDirection() == ‘Stop’:
return
else:
pass
# Draw relevant ghosts
allGhosts = state.getGhostStates()
visibleGhosts = state.getVisibleGhosts()
for i, ghost in enumerate(allGhosts):
if ghost in visibleGhosts:
self.drawGhost(ghost, i)
else:
self.currentGhostImages[i] = None
def getGhostColor(self, ghost, ghostIndex):
return GHOST_COLORS[ghostIndex]
def getPosition(self, ghostState):
if not self.showGhosts and not ghostState.isPacman and ghostState.getPosition()[1] > 1:
return (-1000, -1000)
else:
return PacmanGraphics.getPosition(self, ghostState)
def add(x, y):
return (x[0] + y[0], x[1] + y[1])
# Saving graphical output
# ———————–
# Note: to make an animated gif from this postscript output, try the command:
# convert -delay 7 -loop 1 -compress lzw -layers optimize frame* out.gif
# convert is part of imagemagick (freeware)
SAVE_POSTSCRIPT = False
POSTSCRIPT_OUTPUT_DIR = ‘frames’
FRAME_NUMBER = 0
import os
def saveFrame():
“Saves the current graphical output as a postscript file”
global SAVE_POSTSCRIPT, FRAME_NUMBER, POSTSCRIPT_OUTPUT_DIR
if not SAVE_POSTSCRIPT: return
if not os.path.exists(POSTSCRIPT_OUTPUT_DIR): os.mkdir(POSTSCRIPT_OUTPUT_DIR)
name = os.path.join(POSTSCRIPT_OUTPUT_DIR, ‘frame_%08d.ps’ % FRAME_NUMBER)
FRAME_NUMBER += 1
writePostscript(name) # writes the current canvas