def _draw_silhouettes(self, pc, tx,ty, ent, sight):
'''
# extend a line from tile tx,ty to a distant tile
# which is in the same direction from the player.
# Check for lit tiles, and if we find any along the way,
# draw a silhouette for the location of interest.
# Basically, if the ent is backlit, you can see
# a silhouette.
'''
world=rog.world()
if not sight:
return
if not (ent and world.has_component(ent, cmp.Creature)):
return
pos=world.component_for_entity(ent, cmp.Position)
dist=maths.dist(pos.x,pos.y, tx,ty)
dx=(tx - pos.x)/dist
dy=(ty - pos.y)/dist
xdest=tx + int(dx*sight)
ydest=ty + int(dy*sight)
libtcod.line_init(tx,ty, xdest,ydest)
while True:
x,y=libtcod.line_step()
if x is None: return
if maths.dist(pos.x,pos.y, x,y) > sight: return
if self.get_blocks_sight(x,y): return
if self.get_perceived_light_value(x,y):
libtcod.console_put_char(self.con_map_state, tx,ty, "?")
return
def shine(self): # shine light on environment; add light to lightmap
assert (self.shone == False) # cannot shine if we already did
self.shone = True
rang = self.getLumens(self.lum)
libtcod.map_compute_fov( # Get the tiles we can see
rog.getfovmap(self.fovID),
self.x,
self.y,
rang,
light_walls=True,
algo=libtcod.FOV_RESTRICTIVE)
for x in range(max(0, self.x - rang), min(ROOMW, self.x + rang + 1)):
for y in range(max(0, self.y - rang), min(ROOMH,
self.y + rang + 1)):
if (rog.in_range(self.x, self.y, x, y, rang)
and libtcod.map_is_in_fov(rog.getfovmap(self.fovID), x,
y)):
dist = maths.dist(self.x, self.y, x, y)
# F = L / 4 * pi * d^2 (formula for light dispersion)
lux = self.lum // (12.5663706144 * (dist**2))
if lux:
self.add_tile(x, y, lux)
rog.tile_lighten(x, y, lux)
# end for
return True #success
def shine(self): # add light to the lightmap
if (self.shone): # must unshine before shining again.
print("ERROR: shine failed: shone==True")
return False
self.shone=True
#get the tiles we can see and lighten them up
libtcod.map_compute_fov(
self.fov_map, self.x,self.y, self.brightness,
light_walls = True, algo=libtcod.FOV_RESTRICTIVE)
rang = self.brightness
for x in range( max(0, self.x-rang), min(ROOMW, self.x+rang+1) ):
for y in range( max(0, self.y-rang), min(ROOMH, self.y+rang+1) ):
if ( rog.in_range(self.x,self.y, x,y, rang)
and libtcod.map_is_in_fov(self.fov_map, x,y) ):
dist=maths.dist(self.x,self.y, x,y)
value=round(self.brightness - dist)
if value > 0:
self.add_tile(x,y, value )
rog.tile_lighten(x,y,value)
return True #success
def can_hear(obj, x,y, volume):
if ( on(obj,DEAD) or on(obj,DEAF) or not obj.stats.get('hearing') ):
return False
dist=maths.dist(obj.x, obj.y, x, y)
maxHearDist=volume*obj.stats.get('hearing')/AVG_HEARING
if (obj.x == x and obj.y == y): return (0,0,maxHearDist,)
if dist > maxHearDist: return False
# calculate a path
path=path_init_sound()
path_compute(path, obj.x,obj.y, x,y)
pathSize=libtcod.path_size(path)
if dist >= 2:
semifinal=libtcod.path_get(path, 0)
xf,yf=semifinal
dx=xf - obj.x
dy=yf - obj.y
else:
dx=0
dy=0
path_destroy(path)
loudness=(maxHearDist - pathSize - (pathSize - dist))
if loudness > 0:
return (dx,dy,loudness)
def explosion(bomb):
con=libtcod.console_new(ROOMW, ROOMH)
rog.msg("{t}{n} explodes!".format(t=bomb.title, n=bomb.name))
fov=rog.fov_init()
libtcod.map_compute_fov(
fov, bomb.x,bomb.y, bomb.r,
light_walls = True, algo=libtcod.FOV_RESTRICTIVE)
for x in range(bomb.r*2 + 1):
for y in range(bomb.r*2 + 1):
xx=x + bomb.x - bomb.r
yy=y + bomb.y - bomb.r
if not libtcod.map_is_in_fov(fov, xx,yy):
continue
if not rog.is_in_grid(xx,yy): continue
dist=maths.dist(bomb.x,bomb.y, xx,yy)
if dist > bomb.r: continue
thing=rog.thingat(xx, yy)
if thing:
if rog.on(thing,DEAD): continue
if thing.isCreature:
decay=bomb.dmg/bomb.r
dmg= bomb.dmg - round(dist*decay) - thing.stats.get('arm')
rog.hurt(thing, dmg)
if dmg==0: hitName="not damaged"
elif rog.on(thing,DEAD): hitName="killed"
else: hitName="hit"
rog.msg("{t}{n} is {h} by the blast.".format(
t=thing.title,n=thing.name,h=hitName) )
else:
# explode any bombs caught in the blast
if (thing is not bomb
and hasattr(thing,'explode')
and dist <= bomb.r/2 ):
thing.timer=0
def in_range(x1,y1,x2,y2,Range): return (maths.dist(x1,y1, x2,y2) <= Range + .34) # view def getx(x): return x + view_port_x() - view_x()
def in_range(x1, y1, x2, y2, Range):
return (maths.dist(x1, y1, x2, y2) <= Range + .34)
