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game.py
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game.py
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from __future__ import division
from collections import namedtuple
import sys, pygame, time
from random import randint
import pickle
import data
from vector import Vector
from utils import constrain, rotate_xypos, darken
# colors
BLACK = 0,0,0
FRAMES_PER_SECOND = 25
pygame.init()
class View(object):
def __init__(self, size=(640,480), level=None, position=(0,0,0)):
self.size = size #width, height
self.level = level
self.position = Vector(*position)
self.rotation = 0
self.screen = pygame.display.set_mode(size)
self.offscreen_back = pygame.Surface(self.screen.get_size())
self.offscreen_front = pygame.Surface(self.screen.get_size())
self.clock = pygame.time.Clock()
self.graphics = data.Graphics()
self.textures = self.graphics.get_texture_names()
self.texture = self.textures[0]
self.font = pygame.font.Font(None, 25)
self.character_pos = [(0,3,0), (5, 5, 0), (7,2,0)]
self.soldiers = []
for i,p in enumerate(self.character_pos):
self.soldiers.append(data.Entity("soldier%d"%i, self.graphics.stand_anim,
self.graphics.run_anim, 8, p, randint(0,7)))
def move_cursor_on_screen(self, dx=0, dy=0, dz=0):
if self.rotation == 1:
dx, dy = -dy, dx
if self.rotation == 2:
dx, dy = -dx, -dy
if self.rotation == 3:
dx, dy = dy, -dx
v.position.x = constrain(v.position.x+dx, 0, lv.xsize-1)
v.position.y = constrain(v.position.y+dy, 0, lv.ysize-1)
v.position.z = constrain(v.position.z+dz, 0, lv.zsize-1)
return v.position
def get_screen_center(self):
return self.size[0]//2, self.size[1]//2
def map2screen(self, x, y, z):
"Convert from map position to screen coordinates"
cx, cy = self.get_screen_center()
rx, ry = rotate_xypos(x, y, self.level.xsize-1, self.level.ysize-1,
(self.rotation)%4)
posx, posy = rotate_xypos(self.position.x, self.position.y,
self.level.xsize-1, self.level.ysize-1,
(-self.rotation)%4)
posz = self.position.z
return (cx+self.graphics.block_width//2*(posx-posy-x+y),
cy+self.graphics.block_depth//2*(-posx-posy+x+y)-self.graphics.block_height*(z-posz))
def screen2map(self, x, y, z):
"Convert from screen coordinates to map position, in the given z plane."
cx, cy = self.get_screen_center()
w, h, d = self.graphics.block_width, self.graphics.block_height, self.graphics.block_depth
dx, dy = ((x-cx-w//2), (y-cy+(z-self.position.z)*h-d//2))
if self.rotation%4 == 0:
rx, ry = (self.position.x + -dx/w + dy/d, self.position.y + dy/d + dx/w + 1)
elif self.rotation%4 == 1:
rx, ry = ( self.position.x - ( dy/d + dx/w), self.position.y + -dx/w + dy/d)
elif self.rotation%4 == 2:
rx, ry = ( self.position.x -( -dx/w + dy/d)+1, self.position.y - (dy/d + dx/w))
elif self.rotation%4 == 3:
rx, ry = ( self.position.x + dy/d + dx/w +1, self.position.y - ( -dx/w + dy/d)+1)
if 0 <= rx < self.level.xsize and 0 <= ry < self.level.ysize:
return (int(rx), int(ry))
else:
return None
def get_overlap(self, position):
"""
return a list of coordinates for the blocks that are overlapped by the given block
"""
x, y, z = position
l = [
(x-2, y-2),
(x-1, y-2), (x-2, y-1),
(x-1, y-1),
(x, y-1), (x-1, y),
(x, y),
(x+1, y), (x, y+1),
(x+1, y+1),
(x+2, y+1), (x+1, y+2),
(x+2, y+2)
]
return l
def draw_column(self, pos, maxdist=5, back_also=False):
"""
"""
surf = pygame.Surface((self.graphics.block_width, self.screen.get_height()), pygame.SRCALPHA)
px, py, pz = pos
xoffs, yoffs = self.map2screen(px,py,pz)
#xoffs += self.graphics.block_width//4
yoffs = self.graphics.block_depth+1
for z in range(max(pz-maxdist, 0) if back_also else pz, min(self.level.zsize-1, pz+maxdist)):
for d in range(-maxdist if back_also else 0, maxdist):
x = px + d
y = py + d
bl = self.level.get_block(Vector(x, y, z))
if bl is not None:
blsurf = self.blit_block((x,y,z), self.graphics.block_rect,
background = not (x,y,z) == pos)
lx, ly = self.map2screen(x,y,z)
surf.blit(blsurf, (lx-xoffs, ly-yoffs))
if (x, y, z) == (self.position.x, self.position.y, self.position.z):
#print "drawing cursor"
surf.blit(self.graphics.cursor_img, (lx-xoffs, ly-yoffs))
bl = self.level.get_block(Vector(x+1, y, z))
if bl is not None:
blsurf = self.blit_block((x+1,y,z), self.graphics.block_rect,
background = not (x+1,y,z) == pos)
lx, ly = self.map2screen(x+1,y,z)
surf.blit(blsurf, (lx-xoffs, ly-yoffs))
bl = self.level.get_block(Vector(x, y+1, z))
if bl is not None:
blsurf = self.blit_block((x,y+1,z), self.graphics.block_rect,
background = not (x,y+1,z) == pos)
lx, ly = self.map2screen(x,y+1,z)
surf.blit(blsurf, (lx-xoffs, ly-yoffs))
return surf
def blit_block(self, pos, rect, foreground=True, background=True, entity=None):
x, y, z = pos
bl = self.level.get_block(Vector(x, y, z))
surf = pygame.Surface(rect.size, pygame.SRCALPHA)
if bl is not None:
darkness = 4*(9-x+9-y+9-z)
if bl.floor == 0:
floor = darken(self.graphics.floor_img, darkness)
surf.blit(floor, (0,0))
# draw walls from the back
if background:
for w in [(r+self.rotation*2)%8 for r in (0,1,7,2,6)]:
if bl.walls.has_key(w):
wall = darken(self.graphics.get_texture(self.texture).make_wall((w-self.rotation*2)%8, 2), darkness)
surf.blit(wall, (0,0))
# draw higher floor (if any)
if bl.floor == 0.5:
floor = darken(self.graphics.block_half_img, darkness)
surf.blit(floor, (0,0))
elif bl.floor == 1:
floor = darken(self.graphics.block_img, darkness)
surf.blit(floor, (0,0))
# just add some fake dudes
if entity is not None:
surf.blit(entity.get_stand_image(), ((rect.width - entity.rect.width)/2,
(rect.height - entity.rect.height)/2-10))
# draw walls in front
if foreground:
for w in [(r+self.rotation*2)%8 for r in (3,5,4)]:
if bl.walls.has_key(w):
wall = darken(self.graphics.get_texture(self.texture).make_wall((w-self.rotation*2)%8, 2),
darkness)
surf.blit(wall, (0,0))
#surf.blit(self.graphics.thinwalls[(w-self.rotation*2)%8], (0,0))
#if x+y > self.position.x+self.position.y:
# surf.set_alpha(127)
return surf
else:
return None
def draw(self):
cx, cy = self.get_screen_center()
self.screen.fill(BLACK)
rect=self.graphics.block_rect
self.offscreen_back.fill((0,0,0))
entity_positions = [e.position for e in self.soldiers]
for z in range(self.level.zsize):
for a in range(self.level.xsize+self.level.ysize):
if a >= self.level.xsize:
c = a - self.level.xsize #self.level.ysize+self.level.xsize-1-a
else:
c = 0
for y in range(c,a-c):
x = a-y-1
rx, ry = rotate_xypos(x, y, self.level.xsize-1, self.level.ysize-1,
(self.rotation)%4)
rect.center = self.map2screen(x,y,z)
# Check that we're not drawing outside the screen, which would be
# a waste of time.
if rect.clip(self.screen.get_rect()).size != (0,0):
if (rx, ry, z) in entity_positions:
surf = self.blit_block((rx, ry, z), rect, entity=self.soldiers[
entity_positions.index((rx, ry, z))
])
else:
surf = self.blit_block((rx, ry, z), rect)
if surf is not None:
self.offscreen_back.blit(surf, rect)
# if (rx, ry, z) == (self.position.x, self.position.y, self.position.z):
# print "drawing cursor"
# s = self.draw_column((rx, ry, z))
# self.offscreen_back.blit(s, (rect.left, 0))
# #self.offscreen_back.blit(self.graphics.cursor_img, rect)
s = self.draw_column(self.position.tuple())
rect.center = self.map2screen(*self.position.tuple())
self.offscreen_back.blit(s, (rect.left, 0))
#print v.position
self.screen.blit(self.offscreen_back, (0,0))
postext = self.font.render("%d, %d, %d"%v.position.tuple(), 1, (255,255,0))
self.screen.blit(postext, (10,10))
pygame.display.update()
def move_entity(self, entity, newpos, steps=10):
x, y, z = entity.position
nx, ny, nz = newpos
spos = self.map2screen(x, y, z)
direction = ((-1,-1), (0,-1), (1,-1), (1,0), (1,1), (0,1), (-1,1), (-1,0)).index((nx-x, ny-y))
snewpos = self.map2screen(*newpos)
dx = snewpos[0] - spos[0]
dy = snewpos[1] - spos[1]
#dz *= self.graphics.block_height
#char_img = self.graphics.run_anim[(x+y+z+2*self.rotation)%8]
startrect = self.graphics.block_rect.copy()
endrect = self.graphics.block_rect.copy()
rect = entity.rect
startrect.center = rect.center = spos
endrect.center = snewpos
startforeground = self.draw_column((x, y, z))
endforeground = self.draw_column(newpos)
for t in range(steps):
self.screen.blit(self.offscreen_back, rect.topleft, rect)
rect.left += dx/steps
rect.top += dy/steps
self.screen.blit(entity.get_walk_frame(direction, t%8), (rect.left, rect.top-5))
self.screen.blit(startforeground, (startrect.left, 0))
self.screen.blit(endforeground, (endrect.left, 0))
pygame.display.update(rect)
self.clock.tick(FRAMES_PER_SECOND)
entity.position = newpos
entity.direction=direction
lv = data.Level(size=(10,10,10))
for i in range(10):
lv.put_block(Vector(i,0,0), data.Block(walls={0:1}))
lv.put_block(Vector(0,2,i), data.Block(walls={7:1}))
lv.put_block(Vector(0,i,0), data.Block(walls={0:1, 1:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1}))
#lv.put_block(Vector(0,i,0), data.Block(walls={1:1, 3:1, 5:1, 7:1}, floor=0.5))
#for i in range(100):
# d.set_random_block(1)
v = View(level=lv)
v.draw()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT: sys.exit()
if event.type == pygame.MOUSEBUTTONDOWN:
p = v.screen2map(*event.pos, z=0)
if p is not None:
print "Mouse at:", p
else:
print "You moused outside!"
elif event.type == pygame.KEYDOWN:
#print event.key
bl = v.level.get_block(v.position)
direction = -1
if event.key == pygame.K_LEFT:
v.move_cursor_on_screen(dx=1)
elif event.key == pygame.K_RIGHT:
v.move_cursor_on_screen(dx=-1)
elif event.key == pygame.K_DOWN:
v.move_cursor_on_screen(dy=1)
elif event.key == pygame.K_UP:
v.move_cursor_on_screen(dy=-1)
elif event.key == pygame.K_PAGEUP:
v.move_cursor_on_screen(dz=1)
elif event.key == pygame.K_PAGEDOWN:
v.move_cursor_on_screen(dz=-1)
elif event.key == pygame.K_r:
v.rotation = (v.rotation+1)%4
elif event.key == pygame.K_t:
v.rotation = (v.rotation-1)%4
elif event.key == pygame.K_SPACE:
if bl.floor == None:
bl.floor = 1
elif bl.floor == 1:
bl.floor = 0.5
elif bl.floor == 0.5:
bl.floor = 0
elif bl.floor == 0:
bl.floor = None
elif event.key == pygame.K_f:
v.texture = v.textures[(v.textures.index(v.texture) + 1)%len(v.textures)]
elif event.key == pygame.K_TAB:
v.graphics.load_all_textures()
v.textures = v.graphics.get_texture_names()
elif event.key == pygame.K_k:
filename = raw_input("Filename to SAVE level: ")
if filename != "":
try:
with open(filename, "w") as f:
pickle.dump(v.level, f)
except IOError:
print "Could not open file!"
elif event.key == pygame.K_l:
filename = raw_input("Filename to LOAD level: ")
if filename != "":
try:
with open(filename) as f:
v.level = pickle.load(f)
except IOError:
print "Could not open file!"
elif event.key == pygame.K_u:
s = v.soldiers[0]
x, y, z = s.position
v.move_entity(s, (x+1, y, z))
elif event.key in (pygame.K_e, pygame.K_KP9):
direction = 0
elif event.key in (pygame.K_w, pygame.K_KP8):
direction = 1
elif event.key in (pygame.K_q, pygame.K_KP7):
direction = 2
elif event.key in (pygame.K_a, pygame.K_KP4):
direction = 3
elif event.key in (pygame.K_z, pygame.K_KP1):
direction = 4
elif event.key in (pygame.K_x, pygame.K_KP2):
direction = 5
elif event.key in (pygame.K_c, pygame.K_KP3):
direction = 6
elif event.key in (pygame.K_d, pygame.K_KP6):
direction = 7
if direction > -1:
if event.mod == pygame.KMOD_LSHIFT:
s = v.soldiers[0]
dx, dy = ((-1,-1), (0,-1), (1,-1), (1,0), (1,1), (0,1), (-1,1), (-1,0))[direction]
x, y, z = s.position
v.move_entity(s, (x+dx, y+dy, z))
else:
rotdir = (direction+v.rotation*2)%8
if bl.get_wall(rotdir) is not None:
bl.remove_wall(rotdir)
else:
bl.set_wall(rotdir, 1)
t0=time.clock()
v.draw()
print "Drawing took", time.clock()-t0, "s."
v.clock.tick(240)
"""
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT: sys.exit()
ballrect = ballrect.move(speed)
if ballrect.left < 0 or ballrect.right > width:
speed[0] = -speed[0]
if ballrect.top < 0 or ballrect.bottom > height:
speed[1] = -speed[1]
screen.fill(black)
screen.blit(ball, ballrect)
pygame.display.flip()
"""