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samples_py.py
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samples_py.py
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#!/usr/bin/python
#
# libtcod Python samples
# This code demonstrates various usages of libtcod modules
# It's in the public domain.
#
from __future__ import print_function
import math
import os
import libtcodpy as libtcod
xrange = range
# Import Psyco if available
try:
import psyco
psyco.full()
except ImportError:
pass
SAMPLE_SCREEN_WIDTH = 46
SAMPLE_SCREEN_HEIGHT = 20
SAMPLE_SCREEN_X = 20
SAMPLE_SCREEN_Y = 10
cwd_path = os.path.dirname(os.path.realpath(__file__))
data_path = os.path.abspath(os.path.join(cwd_path, '..', 'data'))
font = os.path.join(data_path, 'fonts', 'consolas10x10_gs_tc.png')
libtcod.console_set_custom_font(font, libtcod.FONT_TYPE_GREYSCALE | libtcod.FONT_LAYOUT_TCOD)
libtcod.console_init_root(80, 50, 'libtcod Python sample', False)
sample_console = libtcod.console_new(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT)
#############################################
# parser unit test
#############################################
# parser declaration
if True:
print ('***** File Parser test *****')
parser=libtcod.parser_new()
struct=libtcod.parser_new_struct(parser,'myStruct')
libtcod.struct_add_property(struct,'bool_field', libtcod.TYPE_BOOL, True)
libtcod.struct_add_property(struct,'char_field', libtcod.TYPE_CHAR, True)
libtcod.struct_add_property(struct,'int_field', libtcod.TYPE_INT, True)
libtcod.struct_add_property(struct,'float_field', libtcod.TYPE_FLOAT, True)
libtcod.struct_add_property(struct,'color_field', libtcod.TYPE_COLOR, True)
libtcod.struct_add_property(struct,'dice_field', libtcod.TYPE_DICE, True)
libtcod.struct_add_property(struct,'string_field', libtcod.TYPE_STRING,
True)
libtcod.struct_add_list_property(struct,'bool_list', libtcod.TYPE_BOOL,
True)
libtcod.struct_add_list_property(struct,'char_list', libtcod.TYPE_CHAR,
True)
libtcod.struct_add_list_property(struct,'integer_list', libtcod.TYPE_INT,
True)
libtcod.struct_add_list_property(struct,'float_list', libtcod.TYPE_FLOAT,
True)
libtcod.struct_add_list_property(struct,'string_list', libtcod.TYPE_STRING,
True)
libtcod.struct_add_list_property(struct,'color_list', libtcod.TYPE_COLOR,
True)
## # dice lists doesn't work yet
## libtcod.struct_add_list_property(struct,'dice_list', libtcod.TYPE_DICE,
## True)
# default listener
print ('***** Default listener *****')
libtcod.parser_run(parser, os.path.join(data_path,'cfg','sample.cfg'))
print ('bool_field : ', \
libtcod.parser_get_bool_property(parser,'myStruct.bool_field'))
print ('char_field : ', \
libtcod.parser_get_char_property(parser,'myStruct.char_field'))
print ('int_field : ', \
libtcod.parser_get_int_property(parser,'myStruct.int_field'))
print ('float_field : ', \
libtcod.parser_get_float_property(parser,'myStruct.float_field'))
print ('color_field : ', \
libtcod.parser_get_color_property(parser,'myStruct.color_field'))
print ('dice_field : ', \
libtcod.parser_get_dice_property(parser,'myStruct.dice_field'))
print ('string_field : ', \
libtcod.parser_get_string_property(parser,'myStruct.string_field'))
print ('bool_list : ', \
libtcod.parser_get_list_property(parser,'myStruct.bool_list',
libtcod.TYPE_BOOL))
print ('char_list : ', \
libtcod.parser_get_list_property(parser,'myStruct.char_list',
libtcod.TYPE_CHAR))
print ('integer_list : ', \
libtcod.parser_get_list_property(parser,'myStruct.integer_list',
libtcod.TYPE_INT))
print ('float_list : ', \
libtcod.parser_get_list_property(parser,'myStruct.float_list',
libtcod.TYPE_FLOAT))
print ('string_list : ', \
libtcod.parser_get_list_property(parser,'myStruct.string_list',
libtcod.TYPE_STRING))
print ('color_list : ', \
libtcod.parser_get_list_property(parser,'myStruct.color_list',
libtcod.TYPE_COLOR))
## print ('dice_list : ', \
## libtcod.parser_get_list_property(parser,'myStruct.dice_list',
## libtcod.TYPE_DICE))
# custom listener
print ('***** Custom listener *****')
class MyListener:
def new_struct(self, struct, name):
print ('new structure type', libtcod.struct_get_name(struct), \
' named ', name )
return True
def new_flag(self, name):
print ('new flag named ', name)
return True
def new_property(self,name, typ, value):
type_names = ['NONE', 'BOOL', 'CHAR', 'INT', 'FLOAT', 'STRING', \
'COLOR', 'DICE']
type_name = type_names[typ & 0xff]
if typ & libtcod.TYPE_LIST:
type_name = 'LIST<%s>' % type_name
print ('new property named ', name,' type ',type_name, \
' value ', value)
return True
def end_struct(self, struct, name):
print ('end structure type', libtcod.struct_get_name(struct), \
' named ', name)
return True
def error(self,msg):
print ('error : ', msg)
return True
libtcod.parser_run(parser, os.path.join(data_path,'cfg','sample.cfg'), MyListener())
#############################################
# end of parser unit test
#############################################
#############################################
# true color sample
#############################################
tc_cols = [libtcod.Color(50, 40, 150),
libtcod.Color(240, 85, 5),
libtcod.Color(50, 35, 240),
libtcod.Color(10, 200, 130),
]
tc_dirr = [1, -1, 1, 1]
tc_dirg = [1, -1, -1, 1]
tc_dirb = [1, 1, 1, -1]
def render_colors(first, key, mouse):
global tc_cols, tc_dirr, tc_dirg, tc_dirb, tc_fast
TOPLEFT = 0
TOPRIGHT = 1
BOTTOMLEFT = 2
BOTTOMRIGHT = 3
if first:
libtcod.sys_set_fps(0)
libtcod.console_clear(sample_console)
tc_fast = False
for c in range(4):
# move each corner color
component=libtcod.random_get_int(None, 0, 2)
if component == 0:
tc_cols[c].r += 5 * tc_dirr[c]
if tc_cols[c].r == 255:
tc_dirr[c] = -1
elif tc_cols[c].r == 0:
tc_dirr[c] = 1
elif component == 1:
tc_cols[c].g += 5 * tc_dirg[c]
if tc_cols[c].g == 255:
tc_dirg[c] = -1
elif tc_cols[c].g == 0:
tc_dirg[c] = 1
elif component == 2:
tc_cols[c].b += 5 * tc_dirb[c]
if tc_cols[c].b == 255:
tc_dirb[c] = -1
elif tc_cols[c].b == 0:
tc_dirb[c] = 1
if not tc_fast:
# interpolate corner colors
for x in range(SAMPLE_SCREEN_WIDTH):
xcoef = float(x) / (SAMPLE_SCREEN_WIDTH - 1)
top = libtcod.color_lerp(tc_cols[TOPLEFT], tc_cols[TOPRIGHT], xcoef)
bottom = libtcod.color_lerp(tc_cols[BOTTOMLEFT], tc_cols[BOTTOMRIGHT],
xcoef)
for y in range(SAMPLE_SCREEN_HEIGHT):
ycoef = float(y) / (SAMPLE_SCREEN_HEIGHT - 1)
curColor = libtcod.color_lerp(top, bottom, ycoef)
libtcod.console_set_char_background(sample_console, x, y, curColor,
libtcod.BKGND_SET)
textColor = libtcod.console_get_char_background(sample_console,
SAMPLE_SCREEN_WIDTH // 2, 5)
textColor.r = 255 - textColor.r
textColor.g = 255 - textColor.g
textColor.b = 255 - textColor.b
libtcod.console_set_default_foreground(sample_console, textColor)
for x in range(SAMPLE_SCREEN_WIDTH):
for y in range(SAMPLE_SCREEN_HEIGHT):
col = libtcod.console_get_char_background(sample_console, x, y)
col = libtcod.color_lerp(col, libtcod.black, 0.5)
c = libtcod.random_get_int(None, ord('a'), ord('z'))
libtcod.console_set_default_foreground(sample_console, col)
libtcod.console_put_char(sample_console, x, y, c,
libtcod.BKGND_NONE)
else:
# same, but using the ConsoleBuffer class to speed up rendering
buffer = libtcod.ConsoleBuffer(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT) # initialize buffer
c = libtcod.random_get_int(None, ord('a'), ord('z'))
for x in xrange(SAMPLE_SCREEN_WIDTH):
xcoef = float(x) / (SAMPLE_SCREEN_WIDTH - 1)
top = libtcod.color_lerp(tc_cols[TOPLEFT], tc_cols[TOPRIGHT], xcoef)
bottom = libtcod.color_lerp(tc_cols[BOTTOMLEFT], tc_cols[BOTTOMRIGHT], xcoef)
for y in xrange(SAMPLE_SCREEN_HEIGHT):
# for maximum speed, we avoid using any libtcod function in
# this inner loop, except for the ConsoleBuffer's functions.
ycoef = float(y) / (SAMPLE_SCREEN_HEIGHT - 1)
r = int(top.r * ycoef + bottom.r * (1 - ycoef))
g = int(top.g * ycoef + bottom.g * (1 - ycoef))
b = int(top.b * ycoef + bottom.b * (1 - ycoef))
c += 1
if c > ord('z'): c = ord('a')
# set background, foreground and char with a single function
buffer.set(x, y, r, g, b, r / 2, g / 2, b / 2, chr(c))
buffer.blit(sample_console) # update console with the buffer's contents
libtcod.console_set_default_foreground(sample_console, libtcod.Color(int(r), int(g), int(b)))
libtcod.console_set_default_background(sample_console, libtcod.grey)
libtcod.console_print_rect_ex(sample_console, SAMPLE_SCREEN_WIDTH // 2,
5, SAMPLE_SCREEN_WIDTH - 2,
SAMPLE_SCREEN_HEIGHT - 1,
libtcod.BKGND_MULTIPLY, libtcod.CENTER,
"The Doryen library uses 24 bits "
"colors, for both background and "
"foreground.")
if key.c == ord('f'): tc_fast = not tc_fast
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_print(sample_console, 1, SAMPLE_SCREEN_HEIGHT - 2,
"F : turn fast rendering (Python 2.6 only) %s" % ("off" if tc_fast else "on"))
#############################################
# offscreen console sample
#############################################
oc_secondary = None
oc_screenshot = None
oc_counter = 0
oc_x = 0
oc_y = 0
oc_init = False
oc_xdir = 1
oc_ydir = 1
def render_offscreen(first, key, mouse):
global oc_secondary, oc_screenshot
global oc_counter, oc_x, oc_y, oc_init, oc_xdir, oc_ydir
if not oc_init:
oc_init = True
oc_secondary = libtcod.console_new(SAMPLE_SCREEN_WIDTH // 2,
SAMPLE_SCREEN_HEIGHT // 2)
oc_screenshot = libtcod.console_new(SAMPLE_SCREEN_WIDTH,
SAMPLE_SCREEN_HEIGHT)
libtcod.console_print_frame(oc_secondary, 0, 0, SAMPLE_SCREEN_WIDTH // 2,
SAMPLE_SCREEN_HEIGHT // 2, False, libtcod.BKGND_NONE,
'Offscreen console')
libtcod.console_print_rect_ex(oc_secondary, SAMPLE_SCREEN_WIDTH // 4,
2, SAMPLE_SCREEN_WIDTH // 2 - 2,
SAMPLE_SCREEN_HEIGHT // 2,
libtcod.BKGND_NONE, libtcod.CENTER,
b"You can render to an offscreen "
b"console and blit in on another "
b"one, simulating alpha "
b"transparency.")
if first:
libtcod.sys_set_fps(30)
# get a "screenshot" of the current sample screen
libtcod.console_blit(sample_console, 0, 0, SAMPLE_SCREEN_WIDTH,
SAMPLE_SCREEN_HEIGHT, oc_screenshot, 0, 0)
oc_counter += 1
if oc_counter % 20 == 0:
oc_x += oc_xdir
oc_y += oc_ydir
if oc_x == SAMPLE_SCREEN_WIDTH / 2 + 5:
oc_xdir = -1
elif oc_x == -5:
oc_xdir = 1
if oc_y == SAMPLE_SCREEN_HEIGHT / 2 + 5:
oc_ydir = -1
elif oc_y == -5:
oc_ydir = 1
libtcod.console_blit(oc_screenshot, 0, 0, SAMPLE_SCREEN_WIDTH,
SAMPLE_SCREEN_HEIGHT, sample_console, 0, 0)
libtcod.console_blit(oc_secondary, 0, 0, SAMPLE_SCREEN_WIDTH // 2,
SAMPLE_SCREEN_HEIGHT // 2, sample_console, oc_x, oc_y,
1.0,0.75)
#############################################
# line drawing sample
#############################################
line_bk = libtcod.Color()
line_init = False
line_bk_flag = libtcod.BKGND_SET
def render_lines(first, key, mouse):
global line_bk, line_init, line_bk_flag
flag_names=['BKGND_NONE',
'BKGND_SET',
'BKGND_MULTIPLY',
'BKGND_LIGHTEN',
'BKGND_DARKEN',
'BKGND_SCREEN',
'BKGND_COLOR_DODGE',
'BKGND_COLOR_BURN',
'BKGND_ADD',
'BKGND_ADDALPHA',
'BKGND_BURN',
'BKGND_OVERLAY',
'BKGND_ALPHA',
]
if key.vk in (libtcod.KEY_ENTER, libtcod.KEY_KPENTER):
line_bk_flag += 1
if (line_bk_flag & 0xff) > libtcod.BKGND_ALPH:
line_bk_flag=libtcod.BKGND_NONE
alpha = 0.0
if (line_bk_flag & 0xff) == libtcod.BKGND_ALPH:
# for the alpha mode, update alpha every frame
alpha = (1.0 + math.cos(libtcod.sys_elapsed_seconds() * 2)) / 2.0
line_bk_flag = libtcod.BKGND_ALPHA(alpha)
elif (line_bk_flag & 0xff) == libtcod.BKGND_ADDA:
# for the add alpha mode, update alpha every frame
alpha = (1.0 + math.cos(libtcod.sys_elapsed_seconds() * 2)) / 2.0
line_bk_flag = libtcod.BKGND_ADDALPHA(alpha)
if not line_init:
line_bk = libtcod.console_new(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT)
# initialize the colored background
for x in range(SAMPLE_SCREEN_WIDTH):
for y in range(SAMPLE_SCREEN_HEIGHT):
col = libtcod.Color(x * 255 // (SAMPLE_SCREEN_WIDTH - 1),
(x + y) * 255 // (SAMPLE_SCREEN_WIDTH - 1 +
SAMPLE_SCREEN_HEIGHT - 1),
y * 255 // (SAMPLE_SCREEN_HEIGHT-1))
libtcod.console_set_char_background(line_bk, x, y, col, libtcod.BKGND_SET)
line_init = True
if first:
libtcod.sys_set_fps(30)
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_blit(line_bk, 0, 0, SAMPLE_SCREEN_WIDTH,
SAMPLE_SCREEN_HEIGHT, sample_console, 0, 0)
recty = int((SAMPLE_SCREEN_HEIGHT - 2) * ((1.0 +
math.cos(libtcod.sys_elapsed_seconds())) / 2.0))
for x in range(SAMPLE_SCREEN_WIDTH):
col = libtcod.Color(x * 255 // SAMPLE_SCREEN_WIDTH,
x * 255 // SAMPLE_SCREEN_WIDTH,
x * 255 // SAMPLE_SCREEN_WIDTH)
libtcod.console_set_char_background(sample_console, x, recty, col, line_bk_flag)
libtcod.console_set_char_background(sample_console, x, recty + 1, col,
line_bk_flag)
libtcod.console_set_char_background(sample_console, x, recty + 2, col,
line_bk_flag)
angle = libtcod.sys_elapsed_seconds() * 2.0
cos_angle=math.cos(angle)
sin_angle=math.sin(angle)
xo = int(SAMPLE_SCREEN_WIDTH // 2 * (1 + cos_angle))
yo = int(SAMPLE_SCREEN_HEIGHT // 2 + sin_angle * SAMPLE_SCREEN_WIDTH // 2)
xd = int(SAMPLE_SCREEN_WIDTH // 2 * (1 - cos_angle))
yd = int(SAMPLE_SCREEN_HEIGHT // 2 - sin_angle * SAMPLE_SCREEN_WIDTH // 2)
# draw the line
# in Python the easiest way is to use the line iterator
for x,y in libtcod.line_iter(xo, yo, xd, yd):
if 0 <= x < SAMPLE_SCREEN_WIDTH and \
0 <= y < SAMPLE_SCREEN_HEIGHT:
libtcod.console_set_char_background(sample_console, x, y,
libtcod.light_blue, line_bk_flag)
libtcod.console_print(sample_console, 2, 2,
'%s (ENTER to change)' %
flag_names[line_bk_flag & 0xff])
#############################################
# noise sample
#############################################
noise_func = 0
noise_dx = 0.0
noise_dy = 0.0
noise_octaves = 4.0
noise_zoom = 3.0
noise_hurst = libtcod.NOISE_DEFAULT_HURST
noise_lacunarity = libtcod.NOISE_DEFAULT_LACUNARITY
noise = libtcod.noise_new(2)
noise_img=libtcod.image_new(SAMPLE_SCREEN_WIDTH*2,SAMPLE_SCREEN_HEIGHT*2)
def render_noise(first, key, mouse):
global noise_func, noise_img
global noise_dx, noise_dy
global noise_octaves, noise_zoom, noise_hurst, noise_lacunarity, noise
PERLIN = 0
SIMPLEX = 1
WAVELET = 2
FBM_PERLIN = 3
TURBULENCE_PERLIN = 4
FBM_SIMPLEX = 5
TURBULENCE_SIMPLEX = 6
FBM_WAVELET = 7
TURBULENCE_WAVELET = 8
funcName=[
'1 : perlin noise ',
'2 : simplex noise ',
'3 : wavelet noise ',
'4 : perlin fbm ',
'5 : perlin turbulence ',
'6 : simplex fbm ',
'7 : simplex turbulence ',
'8 : wavelet fbm ',
'9 : wavelet turbulence ',
]
if first:
libtcod.sys_set_fps(30)
libtcod.console_clear(sample_console)
noise_dx += 0.01
noise_dy += 0.01
for y in range(2*SAMPLE_SCREEN_HEIGHT):
for x in range(2*SAMPLE_SCREEN_WIDTH):
f = [noise_zoom * x / (2*SAMPLE_SCREEN_WIDTH) + noise_dx,
noise_zoom * y / (2*SAMPLE_SCREEN_HEIGHT) + noise_dy]
value = 0.0
if noise_func == PERLIN:
value = libtcod.noise_get(noise, f, libtcod.NOISE_PERLIN)
elif noise_func == SIMPLEX:
value = libtcod.noise_get(noise, f, libtcod.NOISE_SIMPLEX)
elif noise_func == WAVELET:
value = libtcod.noise_get(noise, f, libtcod.NOISE_WAVELET)
elif noise_func == FBM_PERLIN:
value = libtcod.noise_get_fbm(noise, f, noise_octaves, libtcod.NOISE_PERLIN)
elif noise_func == TURBULENCE_PERLIN:
value = libtcod.noise_get_turbulence(noise, f, noise_octaves, libtcod.NOISE_PERLIN)
elif noise_func == FBM_SIMPLEX:
value = libtcod.noise_get_fbm(noise, f, noise_octaves, libtcod.NOISE_SIMPLEX)
elif noise_func == TURBULENCE_SIMPLEX:
value = libtcod.noise_get_turbulence(noise, f,
noise_octaves, libtcod.NOISE_SIMPLEX)
elif noise_func == FBM_WAVELET:
value = libtcod.noise_get_fbm(noise, f, noise_octaves, libtcod.NOISE_WAVELET)
elif noise_func == TURBULENCE_WAVELET:
value = libtcod.noise_get_turbulence(noise, f,
noise_octaves, libtcod.NOISE_WAVELET)
c = int((value + 1.0) / 2.0 * 255)
if c < 0:
c = 0
elif c > 255:
c = 255
col = libtcod.Color(c // 2, c // 2, c)
libtcod.image_put_pixel(noise_img,x,y,col)
libtcod.console_set_default_background(sample_console, libtcod.grey)
rectw = 24
recth = 13
if noise_func <= WAVELET:
recth = 10
libtcod.image_blit_2x(noise_img,sample_console,0,0)
libtcod.console_rect(sample_console, 2, 2, rectw, recth, False,
libtcod.BKGND_MULTIPLY)
for y in range(2,2+recth):
for x in range(2,2+rectw):
col=libtcod.console_get_char_foreground(sample_console,x,y)
col = col * libtcod.grey
libtcod.console_set_char_foreground(sample_console,x,y,col)
for curfunc in range(TURBULENCE_WAVELET + 1):
if curfunc == noise_func:
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_set_default_background(sample_console,
libtcod.light_blue)
libtcod.console_print_ex(sample_console, 2, 2 + curfunc,
libtcod.BKGND_SET, libtcod.LEFT, funcName[curfunc])
else:
libtcod.console_set_default_foreground(sample_console, libtcod.grey)
libtcod.console_print(sample_console, 2, 2 + curfunc,
funcName[curfunc])
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_print(sample_console, 2, 11,
'Y/H : zoom (%2.1f)' % noise_zoom)
if noise_func > WAVELET:
libtcod.console_print(sample_console, 2, 12,
'E/D : hurst (%2.1f)' % noise_hurst)
libtcod.console_print(sample_console, 2, 13,
'R/F : lacunarity (%2.1f)' %
noise_lacunarity)
libtcod.console_print(sample_console, 2, 14,
'T/G : octaves (%2.1f)' % noise_octaves)
if key.vk == libtcod.KEY_NONE:
return
if ord('9') >= key.c >= ord('1'):
noise_func = key.c - ord('1')
elif key.c in (ord('E'), ord('e')):
noise_hurst += 0.1
libtcod.noise_delete(noise)
noise = libtcod.noise_new(2,noise_hurst,noise_lacunarity)
elif key.c in (ord('D'), ord('d')):
noise_hurst -= 0.1
libtcod.noise_delete(noise)
noise = libtcod.noise_new(2, noise_hurst, noise_lacunarity)
elif key.c in (ord('R'), ord('r')):
noise_lacunarity += 0.5
libtcod.noise_delete(noise)
noise = libtcod.noise_new(2, noise_hurst, noise_lacunarity)
elif key.c in (ord('F'), ord('f')):
noise_lacunarity -= 0.5
libtcod.noise_delete(noise)
noise = libtcod.noise_new(2, noise_hurst, noise_lacunarity)
elif key.c in (ord('T'), ord('t')):
noise_octaves += 0.5
elif key.c in (ord('G'), ord('g')):
noise_octaves -= 0.5
elif key.c in (ord('Y'), ord('y')):
noise_zoom += 0.2
elif key.c in (ord('H'), ord('h')):
noise_zoom -= 0.2
#############################################
# field of view sample
#############################################
fov_px = 20
fov_py = 10
fov_recompute = True
fov_torch = False
fov_map = None
fov_dark_wall = libtcod.Color(0, 0, 100)
fov_light_wall = libtcod.Color(130, 110, 50)
fov_dark_ground = libtcod.Color(50, 50, 150)
fov_light_ground = libtcod.Color(200, 180, 50)
fov_noise = None
fov_torchx = 0.0
fov_init = False
fov_light_walls = True
fov_algo_num = 0
fov_algo_names = ['BASIC ','DIAMOND ', 'SHADOW ',
'PERMISSIVE0','PERMISSIVE1','PERMISSIVE2','PERMISSIVE3','PERMISSIVE4',
'PERMISSIVE5','PERMISSIVE6','PERMISSIVE7','PERMISSIVE8','RESTRICTIVE']
def render_fov(first, key, mouse):
global fov_px, fov_py, fov_map, fov_dark_wall, fov_light_wall
global fov_dark_ground, fov_light_ground
global fov_recompute, fov_torch, fov_noise, fov_torchx, fov_init
global fov_light_walls, fov_algo_num, fov_algo_names
smap = ['##############################################',
'####################### #################',
'##################### # ###############',
'###################### ### ###########',
'################## ##### ####',
'################ ######## ###### ####',
'############### #################### ####',
'################ ###### ##',
'######## ####### ###### # # # ##',
'######## ###### ### ##',
'######## ##',
'#### ###### ### # # # ##',
'#### ### ########## #### ##',
'#### ### ########## ###########=##########',
'#### ################## ##### #####',
'#### ### #### ##### #####',
'#### # #### #####',
'######## # #### ##### #####',
'######## ##### ####################',
'##############################################',
]
TORCH_RADIUS = 10
SQUARED_TORCH_RADIUS = TORCH_RADIUS * TORCH_RADIUS
dx = 0.0
dy = 0.0
di = 0.0
if not fov_init:
fov_init = True
fov_map = libtcod.map_new(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT)
for y in range(SAMPLE_SCREEN_HEIGHT):
for x in range(SAMPLE_SCREEN_WIDTH):
if smap[y][x] == ' ':
# ground
libtcod.map_set_properties(fov_map, x, y, True, True)
elif smap[y][x] == '=':
# window
libtcod.map_set_properties(fov_map, x, y, True, False)
# 1d noise for the torch flickering
fov_noise = libtcod.noise_new(1, 1.0, 1.0)
torchs = 'off'
lights = 'off'
if fov_torch:
torchs = 'on '
if fov_light_walls :
lights='on '
if first:
libtcod.sys_set_fps(30)
# we draw the foreground only the first time.
# during the player movement, only the @ is redrawn.
# the rest impacts only the background color
# draw the help text & player @
libtcod.console_clear(sample_console)
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_print(sample_console, 1, 1,
"IJKL : move around\nT : torch fx %s\nW : light walls %s\n+-: algo %s" %
(torchs,lights,fov_algo_names[fov_algo_num]))
libtcod.console_set_default_foreground(sample_console, libtcod.black)
libtcod.console_put_char(sample_console, fov_px, fov_py, '@',
libtcod.BKGND_NONE)
# draw windows
for y in range(SAMPLE_SCREEN_HEIGHT):
for x in range(SAMPLE_SCREEN_WIDTH):
if smap[y][x] == '=':
libtcod.console_put_char(sample_console, x, y,
libtcod.CHAR_DHLINE,
libtcod.BKGND_NONE)
if fov_recompute:
fov_recompute = False
if fov_torch:
libtcod.map_compute_fov(fov_map, fov_px, fov_py, TORCH_RADIUS, fov_light_walls, fov_algo_num)
else:
libtcod.map_compute_fov(fov_map, fov_px, fov_py, 0, fov_light_walls, fov_algo_num)
if fov_torch:
# slightly change the perlin noise parameter
fov_torchx += 0.2
# randomize the light position between -1.5 and 1.5
tdx = [fov_torchx + 20.0]
dx = libtcod.noise_get(noise, tdx, libtcod.NOISE_SIMPLEX) * 1.5
tdx[0] += 30.0
dy = libtcod.noise_get(noise, tdx, libtcod.NOISE_SIMPLEX) * 1.5
di = 0.2 * libtcod.noise_get(noise, [fov_torchx], libtcod.NOISE_SIMPLEX)
for y in range(SAMPLE_SCREEN_HEIGHT):
for x in range(SAMPLE_SCREEN_WIDTH):
visible = libtcod.map_is_in_fov(fov_map, x, y)
wall = (smap[y][x] == '#')
if not visible:
if wall:
libtcod.console_set_char_background(sample_console, x, y,
fov_dark_wall, libtcod.BKGND_SET)
else:
libtcod.console_set_char_background(sample_console, x, y,
fov_dark_ground,
libtcod.BKGND_SET)
else:
if not fov_torch:
if wall:
libtcod.console_set_char_background(sample_console, x, y,
fov_light_wall,
libtcod.BKGND_SET )
else:
libtcod.console_set_char_background(sample_console, x, y,
fov_light_ground,
libtcod.BKGND_SET )
else:
if wall:
base = fov_dark_wall
light = fov_light_wall
else:
base = fov_dark_ground
light = fov_light_ground
# cell distance to torch (squared)
r = float(x - fov_px + dx) * (x - fov_px + dx) + \
(y - fov_py + dy) * (y - fov_py + dy)
if r < SQUARED_TORCH_RADIUS:
l = (SQUARED_TORCH_RADIUS - r) / SQUARED_TORCH_RADIUS \
+ di
if l < 0.0:
l = 0.0
elif l> 1.0:
l = 1.0
base = libtcod.color_lerp(base, light, l)
libtcod.console_set_char_background(sample_console, x, y, base,
libtcod.BKGND_SET)
if key.c in (ord('I'), ord('i')):
if smap[fov_py-1][fov_px] == ' ':
libtcod.console_put_char(sample_console, fov_px, fov_py, ' ',
libtcod.BKGND_NONE)
fov_py -= 1
libtcod.console_put_char(sample_console, fov_px, fov_py, '@',
libtcod.BKGND_NONE)
fov_recompute = True
elif key.c in (ord('K'), ord('k')):
if smap[fov_py+1][fov_px] == ' ':
libtcod.console_put_char(sample_console, fov_px, fov_py, ' ',
libtcod.BKGND_NONE)
fov_py += 1
libtcod.console_put_char(sample_console, fov_px, fov_py, '@',
libtcod.BKGND_NONE)
fov_recompute = True
elif key.c in (ord('J'), ord('j')):
if smap[fov_py][fov_px-1] == ' ':
libtcod.console_put_char(sample_console, fov_px, fov_py, ' ',
libtcod.BKGND_NONE)
fov_px -= 1
libtcod.console_put_char(sample_console, fov_px, fov_py, '@',
libtcod.BKGND_NONE)
fov_recompute = True
elif key.c in (ord('L'), ord('l')):
if smap[fov_py][fov_px+1] == ' ':
libtcod.console_put_char(sample_console, fov_px, fov_py, ' ',
libtcod.BKGND_NONE)
fov_px += 1
libtcod.console_put_char(sample_console, fov_px, fov_py, '@',
libtcod.BKGND_NONE)
fov_recompute = True
elif key.c in (ord('T'), ord('t')):
fov_torch = not fov_torch
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_print(sample_console, 1, 1,
"IJKL : move around\nT : torch fx %s\nW : light walls %s\n+-: algo %s" %
(torchs,lights,fov_algo_names[fov_algo_num]))
libtcod.console_set_default_foreground(sample_console, libtcod.black)
elif key.c in (ord('W'), ord('w')):
fov_light_walls = not fov_light_walls
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_print(sample_console, 1, 1,
"IJKL : move around\nT : torch fx %s\nW : light walls %s\n+-: algo %s" %
(torchs,lights,fov_algo_names[fov_algo_num]))
libtcod.console_set_default_foreground(sample_console, libtcod.black)
fov_recompute = True
elif key.vk == libtcod.KEY_TEXT:
if key.text in ("+", "-"):
if key.text == b"+" and fov_algo_num < libtcod.NB_FOV_ALGORITHMS-1:
fov_algo_num = fov_algo_num + 1
elif fov_algo_num > 0 :
fov_algo_num = fov_algo_num - 1
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_print(sample_console, 1, 1,
"IJKL : move around\nT : torch fx %s\nW : light walls %s\n+-: algo %s" %
(torchs,lights,fov_algo_names[fov_algo_num]))
libtcod.console_set_default_foreground(sample_console, libtcod.black)
fov_recompute = True
#############################################
# pathfinding sample
#############################################
path_px = 20
path_py = 10
path_dx = 24
path_dy = 1
path_map = None
path = None
path_dijk_dist = 0.0
path_using_astar = True
path_dijk = None
path_recalculate = False
path_busy = 0.0
path_oldchar = ' '
path_init = False
def render_path(first, key, mouse):
global path_px, path_py, path_dx, path_dy, path_map, path, path_busy
global path_oldchar, path_init, path_recalculate
global path_dijk_dist, path_using_astar, path_dijk
smap = ['##############################################',
'####################### #################',
'##################### # ###############',
'###################### ### ###########',
'################## ##### ####',
'################ ######## ###### ####',
'############### #################### ####',
'################ ###### ##',
'######## ####### ###### # # # ##',
'######## ###### ### ##',
'######## ##',
'#### ###### ### # # # ##',
'#### ### ########## #### ##',
'#### ### ########## ###########=##########',
'#### ################## ##### #####',
'#### ### #### ##### #####',
'#### # #### #####',
'######## # #### ##### #####',
'######## ##### ####################',
'##############################################',
]
TORCH_RADIUS = 10.0
SQUARED_TORCH_RADIUS = TORCH_RADIUS * TORCH_RADIUS
if not path_init:
path_init = True
path_map = libtcod.map_new(SAMPLE_SCREEN_WIDTH, SAMPLE_SCREEN_HEIGHT)
for y in range(SAMPLE_SCREEN_HEIGHT):
for x in range(SAMPLE_SCREEN_WIDTH):
if smap[y][x] == ' ':
# ground
libtcod.map_set_properties(path_map, x, y, True, True)
elif smap[y][x] == '=':
# window
libtcod.map_set_properties(path_map, x, y, True, False)
path = libtcod.path_new_using_map(path_map)
path_dijk = libtcod.dijkstra_new(path_map)
if first:
libtcod.sys_set_fps(30)
# we draw the foreground only the first time.
# during the player movement, only the @ is redrawn.
# the rest impacts only the background color
# draw the help text & player @
libtcod.console_clear(sample_console)
libtcod.console_set_default_foreground(sample_console, libtcod.white)
libtcod.console_put_char(sample_console, path_dx, path_dy, '+',
libtcod.BKGND_NONE)
libtcod.console_put_char(sample_console, path_px, path_py, '@',
libtcod.BKGND_NONE)
libtcod.console_print(sample_console, 1, 1,
"IJKL / mouse :\nmove destination\nTAB : A*/dijkstra")
libtcod.console_print(sample_console, 1, 4,
"Using : A*")
# draw windows
for y in range(SAMPLE_SCREEN_HEIGHT):
for x in range(SAMPLE_SCREEN_WIDTH):
if smap[y][x] == '=':
libtcod.console_put_char(sample_console, x, y,
libtcod.CHAR_DHLINE,
libtcod.BKGND_NONE)
path_recalculate = True
if path_recalculate:
if path_using_astar :
libtcod.path_compute(path, path_px, path_py, path_dx, path_dy)
else:
path_dijk_dist = 0.0
# compute dijkstra grid (distance from px,py)
libtcod.dijkstra_compute(path_dijk,path_px,path_py)
# get the maximum distance (needed for rendering)
for y in range(SAMPLE_SCREEN_HEIGHT):
for x in range(SAMPLE_SCREEN_WIDTH):
d=libtcod.dijkstra_get_distance(path_dijk,x,y)
if d > path_dijk_dist:
path_dijk_dist=d
# compute path from px,py to dx,dy
libtcod.dijkstra_path_set(path_dijk,path_dx,path_dy)
path_recalculate = False
path_busy = 0.2
# draw the dungeon
for y in range(SAMPLE_SCREEN_HEIGHT):
for x in range(SAMPLE_SCREEN_WIDTH):
if smap[y][x] == '#':
libtcod.console_set_char_background(sample_console, x, y, fov_dark_wall,
libtcod.BKGND_SET)
else:
libtcod.console_set_char_background(sample_console, x, y, fov_dark_ground,
libtcod.BKGND_SET)
# draw the path
if path_using_astar :
for i in range(libtcod.path_size(path)):
x,y = libtcod.path_get(path, i)
libtcod.console_set_char_background(sample_console, x, y,
fov_light_ground, libtcod.BKGND_SET)
else:
for y in range(SAMPLE_SCREEN_HEIGHT):
for x in range(SAMPLE_SCREEN_WIDTH):
if smap[y][x] != '#':
libtcod.console_set_char_background(sample_console, x, y, libtcod.color_lerp(fov_light_ground,fov_dark_ground,
0.9 * libtcod.dijkstra_get_distance(path_dijk,x,y) / path_dijk_dist), libtcod.BKGND_SET)
for i in range(libtcod.dijkstra_size(path_dijk)):
x,y=libtcod.dijkstra_get(path_dijk,i)
libtcod.console_set_char_background(sample_console,x,y,fov_light_ground, libtcod.BKGND_SET )
# move the creature
path_busy -= libtcod.sys_get_last_frame_length()
if path_busy <= 0.0:
path_busy = 0.2
if path_using_astar :
if not libtcod.path_is_empty(path):
libtcod.console_put_char(sample_console, path_px, path_py, ' ',
libtcod.BKGND_NONE)
path_px, path_py = libtcod.path_walk(path, True)
libtcod.console_put_char(sample_console, path_px, path_py, '@',
libtcod.BKGND_NONE)
else:
if not libtcod.dijkstra_is_empty(path_dijk):
libtcod.console_put_char(sample_console, path_px, path_py, ' ',
libtcod.BKGND_NONE)
path_px, path_py = libtcod.dijkstra_path_walk(path_dijk)
libtcod.console_put_char(sample_console, path_px, path_py, '@',
libtcod.BKGND_NONE)
path_recalculate = True
if key.c in (ord('I'), ord('i')) and path_dy > 0:
# destination move north
libtcod.console_put_char(sample_console, path_dx, path_dy, path_oldchar,
libtcod.BKGND_NONE)
path_dy -= 1
path_oldchar = libtcod.console_get_char(sample_console, path_dx,
path_dy)
libtcod.console_put_char(sample_console, path_dx, path_dy, '+',
libtcod.BKGND_NONE)
if smap[path_dy][path_dx] == ' ':
path_recalculate = True
elif key.c in (ord('K'), ord('k')) and path_dy < SAMPLE_SCREEN_HEIGHT - 1:
# destination move south
libtcod.console_put_char(sample_console, path_dx, path_dy, path_oldchar,
libtcod.BKGND_NONE)
path_dy += 1
path_oldchar = libtcod.console_get_char(sample_console, path_dx,
path_dy)
libtcod.console_put_char(sample_console, path_dx, path_dy, '+',
libtcod.BKGND_NONE)
if smap[path_dy][path_dx] == ' ':
path_recalculate = True
elif key.c in (ord('J'), ord('j')) and path_dx > 0:
# destination move west
libtcod.console_put_char(sample_console, path_dx, path_dy, path_oldchar,
libtcod.BKGND_NONE)
path_dx -= 1
path_oldchar = libtcod.console_get_char(sample_console, path_dx,
path_dy)
libtcod.console_put_char(sample_console, path_dx, path_dy, '+',
libtcod.BKGND_NONE)
if smap[path_dy][path_dx] == ' ':
path_recalculate = True
elif key.c in (ord('L'), ord('l')) and path_dx < SAMPLE_SCREEN_WIDTH - 1:
# destination move east
libtcod.console_put_char(sample_console, path_dx, path_dy, path_oldchar,
libtcod.BKGND_NONE)
path_dx += 1
path_oldchar = libtcod.console_get_char(sample_console, path_dx,
path_dy)
libtcod.console_put_char(sample_console, path_dx, path_dy, '+',
libtcod.BKGND_NONE)
if smap[path_dy][path_dx] == ' ':
path_recalculate = True
elif key.vk == libtcod.KEY_TAB:
path_using_astar = not path_using_astar
if path_using_astar :
libtcod.console_print(sample_console, 1, 4,
"Using : A* ")
else:
libtcod.console_print(sample_console, 1, 4,
"Using : Dijkstra")
path_recalculate=True
mx = mouse.cx - SAMPLE_SCREEN_X
my = mouse.cy - SAMPLE_SCREEN_Y
if 0 <= mx < SAMPLE_SCREEN_WIDTH and 0 <= my < SAMPLE_SCREEN_HEIGHT and \
(path_dx != mx or path_dy != my):
libtcod.console_put_char(sample_console, path_dx, path_dy, path_oldchar,
libtcod.BKGND_NONE)
path_dx = mx
path_dy = my
path_oldchar = libtcod.console_get_char(sample_console, path_dx,
path_dy)
libtcod.console_put_char(sample_console, path_dx, path_dy, '+',
libtcod.BKGND_NONE)
if smap[path_dy][path_dx] == ' ':
path_recalculate = True
#############################################
# bsp sample
#############################################
bsp_depth = 8
bsp_min_room_size = 4
# a room fills a random part of the node or the maximum available space ?
bsp_random_room = False
# if true, there is always a wall on north & west side of a room
bsp_room_walls = True
bsp_map = None
# draw a vertical line
def vline(m, x, y1, y2):
if y1 > y2:
y1,y2 = y2,y1
for y in range(y1,y2+1):
m[x][y] = True
# draw a vertical line up until we reach an empty space
def vline_up(m, x, y):
while y >= 0 and not m[x][y]:
m[x][y] = True
y -= 1
# draw a vertical line down until we reach an empty space
def vline_down(m, x, y):
while y < SAMPLE_SCREEN_HEIGHT and not m[x][y]:
m[x][y] = True
y += 1
# draw a horizontal line
def hline(m, x1, y, x2):
if x1 > x2:
x1,x2 = x2,x1
for x in range(x1,x2+1):
m[x][y] = True
# draw a horizontal line left until we reach an empty space
def hline_left(m, x, y):
while x >= 0 and not m[x][y]:
m[x][y] = True
x -= 1
# draw a horizontal line right until we reach an empty space
def hline_right(m, x, y):
while x < SAMPLE_SCREEN_WIDTH and not m[x][y]:
m[x][y]=True
x += 1
# the class building the dungeon from the bsp nodes
def traverse_node(node, dat):
global bsp_map
if libtcod.bsp_is_leaf(node):
# calculate the room size
minx = node.x + 1
maxx = node.x + node.w - 1
miny = node.y + 1
maxy = node.y + node.h - 1
if not bsp_room_walls:
if minx > 1:
minx -= 1
if miny > 1:
miny -=1
if maxx == SAMPLE_SCREEN_WIDTH - 1:
maxx -= 1