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searace.py
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searace.py
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# gcompris - searace
#
# Time-stamp: <2001/08/20 00:54:45 bruno>
#
# Copyright (C) 2004 Bruno Coudoin
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
import gobject
import gnomecanvas
import gcompris
import gcompris.utils
import gcompris.skin
import gtk
import gtk.gdk
import random
import math
import time
from gettext import gettext as _
class Boat:
"""The Boat Class"""
# The Text View and Scrolled windows
tb = None
tv = None
sw = None
x = 0.0
y = 0.0
angle = 0
arrived = False
won = False
finish_time = 0
# To move the ship
dx = 0.0
dy = 0.0
# The user commands parsing
line = 0
# The boat item
item = []
player = 0
# Store a timer object
timer = 0
# Weather condition cache to avoid to find it each time
condition = []
# Display the speed here
speeditem = []
class Gcompris_searace:
"""The Boat Racing activity"""
def __init__(self, gcomprisBoard):
self.gcomprisBoard = gcomprisBoard
self.board_paused = False
# Some constants
self.border_x = 30
self.sea_area = (self.border_x , 30, gcompris.BOARD_WIDTH-self.border_x , 350)
self.weather = []
self.left_boat = Boat()
self.left_boat.player = 0
self.right_boat = Boat()
self.left_boat.player = 1
self.left_initial_boat_y = 150
self.right_initial_boat_y = 150 + 28
# The basic tick for object moves
self.timerinc = 40
self.timer_turn = 15
self.timer1 = 0
self.timer2 = 0
# How to transform user visible sea size to pixels (calculated later)
self.sea_ratio = 1
# We display what's going on here
self.statusitem = []
#print("Gcompris_searace __init__.")
def start(self):
self.gcomprisBoard.level=1
self.gcomprisBoard.maxlevel=4
self.gcomprisBoard.sublevel=1
self.gcomprisBoard.number_of_sublevel=1
self.board_paused = False
pixmap = gcompris.utils.load_pixmap(gcompris.skin.image_to_skin("button_reload.png"))
if(pixmap):
gcompris.bar_set_repeat_icon(pixmap)
gcompris.bar_set(gcompris.BAR_OK|gcompris.BAR_LEVEL|gcompris.BAR_REPEAT_ICON)
else:
gcompris.bar_set(gcompris.BAR_OK|gcompris.BAR_LEVEL|gcompris.BAR_REPEAT);
gcompris.bar_set_level(self.gcomprisBoard)
# Create our rootitem. We put each canvas item in it so at the end we
# only have to kill it. The canvas deletes all the items it contains automaticaly.
self.rootitem = self.gcomprisBoard.canvas.root().add(
gnomecanvas.CanvasGroup,
x=0.0,
y=0.0
)
pixmap = gcompris.utils.load_pixmap(gcompris.skin.image_to_skin("gcompris-bg.jpg"))
item = self.rootitem.add(
gnomecanvas.CanvasPixbuf,
pixbuf = pixmap,
x=0,
y=0,
)
item.connect("event", self.ruler_item_event)
self.display_sea_area()
self.root_weather_item = self.rootitem.add(
gnomecanvas.CanvasGroup,
x=0.0,
y=0.0
)
# Display the weather now
self.display_weather()
# And finaly the players boats
self.init_boats()
#print("Gcompris_searace start.")
def end(self):
self.stop_race()
# Remove the root item removes all the others inside it
self.rootitem.destroy()
#print("Gcompris_searace end.")
def pause(self, pause):
self.board_paused = pause
# There is a problem with GTK widgets, they are not covered by the help
# We hide/show them here
if(pause):
self.left_boat.sw.hide()
self.right_boat.sw.hide()
else:
self.left_boat.sw.show()
self.right_boat.sw.show()
self.repeat()
return
def ok(self):
# This is a real go
# We set a timer. At each tick an entry in each user box is read analysed and run
if(not self.left_boat.timer and not self.right_boat.timer):
self.left_boat.tv.set_editable(False)
self.right_boat.tv.set_editable(False)
self.race_one_command(self.left_boat)
self.race_one_command(self.right_boat)
else:
self.statusitem.set(text=_("The race is already being run"))
# Called by gcompris when the user click on the level icon
def set_level(self, level):
self.stop_race()
self.gcomprisBoard.level=level;
self.gcomprisBoard.sublevel=1;
# Set the level in the control bar
gcompris.bar_set_level(self.gcomprisBoard);
# Remove the root item removes all the others inside it
self.root_weather_item.destroy()
self.root_weather_item = self.rootitem.add(
gnomecanvas.CanvasGroup,
x=0.0,
y=0.0
)
# Display the weather now
self.display_weather()
self.init_boats()
def repeat(self):
# Want to rerun it
self.stop_race()
self.init_boats()
def config(self):
return
def key_press(self, keyval, commit_str, preedit_str):
return False
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
def stop_race(self):
# Remove all the timers
if self.timer1 :
gobject.source_remove(self.timer1)
self.timer1 = 0
if self.timer2 :
gobject.source_remove(self.timer2)
self.timer2 = 0
if self.left_boat.timer :
gobject.source_remove(self.left_boat.timer)
self.left_boat.timer = 0
if self.right_boat.timer :
gobject.source_remove(self.right_boat.timer)
self.right_boat.timer = 0
# Set the initial coordinates of the boats and display them
def init_boats(self):
self.left_boat.x = self.border_x
self.left_boat.y = self.left_initial_boat_y
self.right_boat.x = self.left_boat.x
self.right_boat.y = self.right_initial_boat_y
self.left_boat.angle = 0
self.right_boat.angle = 0
# Display the player boats
if(self.left_boat.item):
self.left_boat.item.destroy()
pixmap = gcompris.utils.load_pixmap("searace/top_boat_red.png")
self.left_boat.item = self.rootitem.add(
gnomecanvas.CanvasPixbuf,
pixbuf = pixmap,
x=self.left_boat.x,
y=self.left_boat.y,
anchor=gtk.ANCHOR_CENTER,
)
self.left_boat.item.raise_to_top()
self.left_boat.item.connect("event", self.ruler_item_event)
if(self.right_boat.item):
self.right_boat.item.destroy()
pixmap = gcompris.utils.load_pixmap("searace/top_boat_green.png")
self.right_boat.item = self.rootitem.add(
gnomecanvas.CanvasPixbuf,
pixbuf = pixmap,
x=self.right_boat.x,
y=self.right_boat.y,
anchor=gtk.ANCHOR_CENTER,
)
self.right_boat.item.raise_to_top()
self.right_boat.item.connect("event", self.ruler_item_event)
# Reset command line processing as well.
self.left_boat.line = 0
self.right_boat.line = 0
self.left_boat.arrived = False
self.right_boat.arrived = False
self.left_boat.won = False
self.right_boat.won = False
self.statusitem.set(text="")
# Let the user enter comands
self.left_boat.tv.set_editable(True)
if self.gcomprisBoard.mode == '1player':
self.tux_move()
else:
self.right_boat.tv.set_editable(True)
#----------------------------------------
# Display the whole playing field
# This is called once only
def display_sea_area(self):
# Some constant to define the sea area
# The sea area is defined in the global self.sea_area
step_x = (self.sea_area[2]-self.sea_area[0])/20
step_y = (self.sea_area[3]-self.sea_area[1])/10
self.sea_ratio = step_x
text_x = self.sea_area[0] - 15
text_y = self.sea_area[1] - 15
# We manage a 2 colors grid
ci = 0
ca = 0xAACCFFFFL
cb = 0x1D0DFFFFL
for y in range (self.sea_area[1], self.sea_area[3]+1, int(step_y)):
if(ci%2):
color = ca
else:
color = cb
ci += 1
# Shadow for text number
item = self.rootitem.add (
gnomecanvas.CanvasText,
text=int(ci),
font=gcompris.skin.get_font("gcompris/content"),
x=text_x+1,
y=y+1,
fill_color_rgba=0x000000FFL
)
item.connect("event", self.ruler_item_event)
# Text number
item = self.rootitem.add (
gnomecanvas.CanvasText,
text=int(ci),
font=gcompris.skin.get_font("gcompris/content"),
x=text_x,
y=y,
fill_color_rgba=cb
)
item.connect("event", self.ruler_item_event)
item = self.rootitem.add(
gnomecanvas.CanvasLine,
points=(self.sea_area[0], y, self.sea_area[2], y),
fill_color_rgba = color,
width_units=1.0
)
item.connect("event", self.ruler_item_event)
ci = 0
for x in range (self.sea_area[0], self.sea_area[2]+1, int(step_x)):
if(ci%2):
color = ca
else:
color = cb
ci += 1
# Shadow for text number
item = self.rootitem.add (
gnomecanvas.CanvasText,
text=int(ci),
font=gcompris.skin.get_font("gcompris/content"),
x=x+1,
y=text_y+1,
fill_color_rgba=0x000000FFL
)
item.connect("event", self.ruler_item_event)
# Text number
item = self.rootitem.add (
gnomecanvas.CanvasText,
text=int(ci),
font=gcompris.skin.get_font("gcompris/content"),
x=x,
y=text_y,
fill_color_rgba=cb
)
item.connect("event", self.ruler_item_event)
item = self.rootitem.add(
gnomecanvas.CanvasLine,
points=(x, self.sea_area[1], x, self.sea_area[3]),
fill_color_rgba = color,
width_units=1.0
)
item.connect("event", self.ruler_item_event)
# The ARRIVAL LINE
item = self.rootitem.add(
gnomecanvas.CanvasLine,
points=(self.sea_area[2], self.sea_area[1]-5, self.sea_area[2], self.sea_area[3]+5),
fill_color_rgba = 0xFF0000FFL,
width_units=5.0
)
item.connect("event", self.ruler_item_event)
# The grid is done
# ----------------
# The Programming input area LEFT
self.left_boat.sw = gtk.ScrolledWindow()
self.left_boat.sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_ALWAYS)
self.left_boat.sw.set_shadow_type(gtk.SHADOW_ETCHED_OUT)
w = 250.0
h = 100.0
y = 400.0 # The upper limit of the text boxes
x_left = gcompris.BOARD_WIDTH/4 - 30
x_right = (gcompris.BOARD_WIDTH/4)*3 + 30
self.left_boat.tb = gtk.TextBuffer()
self.left_boat.tv = gtk.TextView(self.left_boat.tb)
self.left_boat.sw.add(self.left_boat.tv)
command_example = _("right") + " 45\n" + _("forward") + " 5\n" + _("left") + " 45"
self.left_boat.tb.set_text(command_example)
self.left_boat.tv.set_wrap_mode(gtk.WRAP_CHAR)
self.rootitem.add(
gnomecanvas.CanvasWidget,
widget=self.left_boat.sw,
x=x_left,
y=y,
width=w,
height= h,
anchor=gtk.ANCHOR_N,
size_pixels=False)
self.left_boat.tv.show()
self.left_boat.sw.show()
# The Programming input area RIGHT
self.right_boat.sw = gtk.ScrolledWindow()
self.right_boat.sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_ALWAYS)
self.right_boat.sw.set_shadow_type(gtk.SHADOW_ETCHED_OUT)
self.right_boat.tb = gtk.TextBuffer()
self.right_boat.tv = gtk.TextView(self.right_boat.tb)
self.right_boat.sw.add(self.right_boat.tv)
command_example = _("left") + " 45\n" + _("forward") + " 5\n" + _("right") + " 45"
self.right_boat.tb.set_text(command_example)
self.right_boat.tv.set_wrap_mode(gtk.WRAP_CHAR)
self.rootitem.add(
gnomecanvas.CanvasWidget,
widget=self.right_boat.sw,
x=x_right,
y=y,
width=w,
height= h,
anchor=gtk.ANCHOR_N,
size_pixels=False)
self.right_boat.tv.show()
self.right_boat.sw.show()
# Text Labels
self.left_boat.speeditem = self.rootitem.add (
gnomecanvas.CanvasText,
text="",
font=gcompris.skin.get_font("gcompris/content"),
x=x_left,
y=y-20,
fill_color_rgba=0xFF0000FFL
)
self.right_boat.speeditem = self.rootitem.add (
gnomecanvas.CanvasText,
text="",
font=gcompris.skin.get_font("gcompris/content"),
x=x_right,
y=y-20,
fill_color_rgba=0X027308FFL
)
# The status area
self.statusitem = self.rootitem.add (
gnomecanvas.CanvasText,
text="",
font=gcompris.skin.get_font("gcompris/content"),
x=gcompris.BOARD_WIDTH/2,
y=y-40,
fill_color_rgba=0X000a89FFL
)
# The decoration boats
pixmap = gcompris.utils.load_pixmap("searace/top_boat_red.png")
item = self.rootitem.add(
gnomecanvas.CanvasPixbuf,
pixbuf = pixmap,
x=25,
y=y+40,
anchor=gtk.ANCHOR_CENTER,
)
gcompris.utils.item_rotate_relative(item, -90);
pixmap = gcompris.utils.load_pixmap("searace/top_boat_green.png")
item = self.rootitem.add(
gnomecanvas.CanvasPixbuf,
pixbuf = pixmap,
x=gcompris.BOARD_WIDTH-25,
y=y+40,
anchor=gtk.ANCHOR_CENTER,
)
gcompris.utils.item_rotate_relative(item, -90);
# The commands
hl = 18
y += 7
text_color = 0x0000FFFFL
self.rootitem.add (
gnomecanvas.CanvasText,
text=_("COMMANDS ARE"),
font=gcompris.skin.get_font("gcompris/content"),
x=gcompris.BOARD_WIDTH/2,
y=y,
fill_color_rgba=text_color
)
self.rootitem.add (
gnomecanvas.CanvasText,
text=_("forward"),
font=gcompris.skin.get_font("gcompris/content"),
x=gcompris.BOARD_WIDTH/2,
y=y+hl,
fill_color_rgba=text_color
)
self.rootitem.add (
gnomecanvas.CanvasText,
text=_("left"),
font=gcompris.skin.get_font("gcompris/content"),
x=gcompris.BOARD_WIDTH/2,
y=y+hl*2,
fill_color_rgba=text_color
)
self.rootitem.add (
gnomecanvas.CanvasText,
text=_("right"),
font=gcompris.skin.get_font("gcompris/content"),
x=gcompris.BOARD_WIDTH/2,
y=y+hl*3,
fill_color_rgba=text_color
)
# Weather condition is a 2 value pair (angle wind_speed)
# Weather is a list of the form:
# (rectangle coordinate) (weather)
def display_weather(self):
# Reset the weather list
self.weather = []
# Some constant to define the sea area
# The sea area is defined in the global self.sea_area
slice_x = 5 + self.gcomprisBoard.level
slice_y = 3 + self.gcomprisBoard.level
step_x = (self.sea_area[2]-self.sea_area[0])/slice_x
step_y = (self.sea_area[3]-self.sea_area[1])/slice_y
stop_x = self.sea_area[0]+step_x*slice_x
stop_y = self.sea_area[1]+step_y*slice_y
for x in range (self.sea_area[0], stop_x, int(step_x)):
for y in range (self.sea_area[1], stop_y, int(step_y)):
#print x, step_x, self.sea_area[2]
angle = 0
if(self.left_initial_boat_y>y and self.left_initial_boat_y<y+step_y):
# Bad weather condition on the straigh line
direction = random.randint(5,7)
elif(self.right_initial_boat_y>y and self.right_initial_boat_y<y+step_y):
# Bad weather condition on the straigh line
direction = random.randint(5,7)
else:
direction = random.randint(0,7)
if(direction < 4):
# There is more chance to go forward than others
angle = random.randint(-45,45)
elif(direction < 5):
angle = random.randint(135,225)
elif(direction == 6):
angle = random.randint(80, 110)
elif(direction == 7):
angle = random.randint(260, 280)
speed = random.randint(1,10)
condition = [ (x, y, x+step_x, y+step_y), (angle, speed) ]
self.display_condition(condition)
self.weather.append(condition)
return
# Display the given weather condition
def display_condition(self, condition):
#print condition
# Calc the center
cx = condition[0][0]+(condition[0][2]-condition[0][0])/2
cy = condition[0][1]+(condition[0][3]-condition[0][1])/2
pixmap = gcompris.utils.load_pixmap("searace/arrow.png")
item = self.root_weather_item.add(
gnomecanvas.CanvasPixbuf,
pixbuf = pixmap,
x=cx,
y=cy,
anchor=gtk.ANCHOR_CENTER
)
gcompris.utils.item_rotate_relative(item, condition[1][0]);
item.connect("event", self.ruler_item_event)
# Text number Shadow
item = self.root_weather_item.add (
gnomecanvas.CanvasText,
text=condition[1][1],
font=gcompris.skin.get_font("gcompris/content"),
x=cx+1+pixmap.get_width()/2,
y=cy+1+pixmap.get_height()/2,
fill_color_rgba=0x000000FFL
)
item.connect("event", self.ruler_item_event)
# Text number
item = self.root_weather_item.add (
gnomecanvas.CanvasText,
text=condition[1][1],
font=gcompris.skin.get_font("gcompris/content"),
x=cx+pixmap.get_width()/2,
y=cy+pixmap.get_height()/2,
fill_color_rgba=0xFFFFFFFFL
)
item.connect("event", self.ruler_item_event)
return
# Given a boat item, return it's weather condition
def get_weather_condition(self, boat):
(x, y)= boat.item.i2w( boat.x, boat.y)
# Look in the cache to speed the process
if(boat.condition):
coord = boat.condition[0]
condition = boat.condition[1]
if(boat.x >= coord[0] and boat.x <= coord[2] and boat.y >= coord[1] and boat.y <= coord[3]):
return(condition)
for conditions in self.weather:
coord = conditions[0]
condition = conditions[1]
#print "Testing coord="+str(coord)+" Boat coord x="+str(x)+" y="+str(y)
if(x >= coord[0] and x <= coord[2] and y >= coord[1] and y <= coord[3]):
boat.condition = conditions
#print "Found: x="+str(x)+" y="+str(y)+" coord="+str(coord)
#print " angle=" + str(int(condition[0])) + " speed=" + str(condition[1])
return(condition)
# Should not happen, return a normal condition anyway
return(0,1)
# Given a x y coord, return it's weather condition (no caching)
def get_absolute_weather_condition(self, x, y):
for conditions in self.weather:
coord = conditions[0]
condition = conditions[1]
#print "Testing coord="+str(coord)+" Boat coord x="+str(x)+" y="+str(y)
if(x >= coord[0] and x <= coord[2] and y >= coord[1] and y <= coord[3]):
#print "Found: x="+str(x)+" y="+str(y)+" coord="+str(coord)
#print " angle=" + str(int(condition[0])) + " speed=" + str(condition[1])
return(condition)
# Should not happen, return a normal condition anyway
return(0,1)
# Return a wind score depending on an angle
def get_wind_score(self, boat_angle, condition):
# Calculate the timer inc depending on the wind angle + speed
wind_angle = condition[0] - boat_angle
if(wind_angle>360):
wind_angle-=360
elif(wind_angle<-360):
wind_angle+=360
if(abs(wind_angle)>180):
wind_angle=180-(abs(wind_angle)-180)
# Increase the timer depending on wind force and direction
angle_pi = wind_angle*math.pi/180
cx = math.cos(angle_pi)
penalty=3
if(cx<0):
penalty*=4
return(cx*condition[1]*-1*penalty)
#
# Boat moving
# -----------
def cmd_forward(self, boat, value):
# print "Player " + str(boat.player) + " cmd_forward " + str(value) + " dx=" + str(boat.dx) + " dy=" + str(boat.dy)
if(self.board_paused):
boat.timer = 0
return
value -= 1
if value <= 0:
# Process next command
self.race_one_command(boat)
boat.timer = 0
return
# Move it
boat.x += 1
boat.y += 0
# We need to convert the coord to the rootitem coordinate to check limits
(x, y)= boat.item.i2w( boat.x, boat.y)
# Manage the wrapping
if(y<self.sea_area[1]):
y = self.sea_area[3]
(boat.x, boat.y)= boat.item.w2i( x, y)
elif(y>self.sea_area[3]):
y = self.sea_area[1]
(boat.x, boat.y)= boat.item.w2i( x, y)
elif(x>self.sea_area[2]):
boat.arrived = True
boat.finish_time = time.time()
#print "self.left_boat.finish_time" + str(self.left_boat.finish_time)
#print "self.right_boat.finish_time" + str(self.right_boat.finish_time)
if(not self.left_boat.won and not self.right_boat.won):
boat.won = True
elif(abs(self.left_boat.finish_time - self.right_boat.finish_time) < 1):
# The two boat arrived in a close time frame (1s), it's a draw
self.statusitem.set(text=_("This is a draw"))
self.left_boat.won = False
self.right_boat.won = False
boat.speeditem.set(text="")
boat.speeditem.set(text="")
if(self.left_boat.won):
self.statusitem.set(text=_("The Red boat has won"))
boat.speeditem.set(text="")
elif(self.right_boat.won):
self.statusitem.set(text=_("The Green boat has won"))
boat.speeditem.set(text="")
boat.timer = 0
return
condition = self.get_weather_condition(boat)
boat.item.set(x = boat.x,
y = boat.y)
wind = self.get_wind_score(boat.angle, condition)
#print "Player " + str(boat.player) + " wind_angle=" + str(abs(wind_angle)) + " condition=" + str(condition[1]) + " cx=" + str(cx) + " wind=" + str(wind)
angle = condition[0]
if(angle>180):
angle = abs(angle-360)
boat.speeditem.set(text = _("Angle:") + str(angle) + " " + _("Wind:") + str(int(wind)*-1))
boat.timer = gobject.timeout_add(int(self.timerinc+wind), self.cmd_forward, boat, value)
# Counter Clock wise rotation (use negative param to turn clock wise)
def cmd_turn_left(self, boat, value):
# print "Player " + str(boat.player) + " turn left " + str(value)
if(self.board_paused):
boat.timer = 0
return
if value == 0:
# Process next command
self.race_one_command(boat)
boat.timer = 0
return
turn = -value
boat.angle += turn
if(boat.angle>360):
boat.angle-=360
elif(boat.angle<360):
boat.angle+=360
value = 0
gcompris.utils.item_rotate_relative(boat.item, turn);
boat.timer = gobject.timeout_add(self.timer_turn, self.cmd_turn_left, boat, value)
# Run the race
def race_one_command(self, boat):
if(self.board_paused):
# Let the user enter commands
boat.tv.set_editable(True)
boat.line = 0
boat.timer = 0
return
valid_cmd = False
cmd = ""
while(boat.line < boat.tb.get_line_count() and not valid_cmd):
a = boat.tb.get_iter_at_line(boat.line)
b = boat.tb.get_iter_at_line(boat.line)
b.forward_to_line_end()
cmd = boat.tb.get_text(a, b, False)
boat.line+=1
if(cmd and cmd[0] == "\n"):
boat.line+=1
# Processing cmd
cmd = cmd.strip("\n\t ")
if(cmd != "" and cmd[0] != "#"):
valid_cmd = True
# No more commands to process for this player
if (boat.line > boat.tb.get_line_count() or not valid_cmd):
# Let the user enter commands
boat.tv.set_editable(True)
# Ready to Restart
boat.line = 0
boat.timer = 0
return
#print "boat.line=" + str(boat.line)
#print "Parsing command = " + cmd + "<<"
cmds = cmd.split()
# Manage default cases (no params given)
if ( len(cmds) == 1 and cmd.startswith(_("forward")) ):
cmd += " 1"
elif ( len(cmds) == 1 and cmd.startswith(_("left")) ):
cmd += " 45"
elif ( len(cmds) == 1 and cmd.startswith(_("right")) ):
cmd += " 45"
elif ( len(cmds) > 2):
boat.speeditem.set(text=_("Syntax error at line") + " " + str(boat.line) + "\n(" + cmd + ")")
# Let the user enter commands
boat.tv.set_editable(True)
boat.line = 0
boat.timer = 0
return
value = 0
if(len(cmds) == 2):
try:
value = int(cmd.split()[1])
except ValueError:
# Let the user enter commands
boat.tv.set_editable(True)
boat.timer = 0
boat.speeditem.set(text=_("The command") + " '" + cmd.split()[0] + "' " + "at line" + " " + str(boat.line) + "\n" + "requires a number parameter")
boat.line = 0
return
if( cmd.startswith(_("forward"))):
# Transform the value from user visible sea size to pixels
value *= self.sea_ratio
# Initialize the move
boat.timer = gobject.timeout_add(self.timerinc, self.cmd_forward, boat, value)
elif( cmd.startswith(_("left"))):
boat.timer = gobject.timeout_add(self.timerinc, self.cmd_turn_left, boat, value)
elif( cmd.startswith(_("right"))):
boat.timer = gobject.timeout_add(self.timerinc, self.cmd_turn_left, boat, value*-1)
else:
# Let the user enter commands
boat.tv.set_editable(True)
boat.timer = 0
boat.speeditem.set(text=_("Unknown command at line") + " " + str(boat.line) + "\n(" + cmd.split()[0] + ")")
boat.line = 0
# Will return a text string: the tux move
def tux_move(self):
# The sea area is defined in the global self.sea_area
step_x = (self.sea_area[2]-self.sea_area[0])/20*2
step_y = (self.sea_area[3]-self.sea_area[1])/10
# Original boat position
bx = self.right_boat.x
by = self.right_boat.y
ba = 0
one_path = []
# X loop
while (bx <= self.sea_area[2] and bx >= self.sea_area[0]):
score = 10000
# By default, go straight
coord = (bx, by, ba, int(step_x))
# angle loop
for boat_angle in [ -45, 0, 45 ]:
a_pi = boat_angle * math.pi/180
# Find the point from current boat position with angle a and distance step_x
x = bx + math.cos(a_pi)*step_x
y = by + math.sin(a_pi)*step_x
# Manage the wrapping
line_style = gtk.gdk.LINE_SOLID
if(y<self.sea_area[1]):
y = self.sea_area[3] - (self.sea_area[1]-y)
line_style = gtk.gdk.LINE_DOUBLE_DASH
elif(y>self.sea_area[3]):
y = self.sea_area[1] + (y - self.sea_area[3])
line_style = gtk.gdk.LINE_DOUBLE_DASH
# Find shortest path to previous calculated point
condition = self.get_absolute_weather_condition(x, y)
wind = self.get_wind_score(boat_angle, condition)
if(wind<score):
score = wind
coord = (x, y, boat_angle, step_x, line_style) # x y angle distance line_style
# ----------
self.root_weather_item.add(
gnomecanvas.CanvasLine,
points=(bx, by, coord[0], coord[1]),
fill_color_rgba=0x00CC00FFL,
width_units=2.0,
line_style=coord[4]
)
bx = coord[0]
by = coord[1]
ba = coord[2]
one_path.append(coord)
# --------------------------------------------------------------
# Translate the previous calculation in a string for Tux program
# --------------------------------------------------------------
ba = 0 # Boat angle
cumulative_distance = 0
tux_move = ""
for c in one_path:
#print "X,Y,A,D=" + str(c)
x=c[0]
y=c[1]
a=c[2] # angle
d=c[3] # distance
if(ba-a<0):
if(cumulative_distance):
tux_move += _("forward") + " " + str(cumulative_distance) + "\n"
cumulative_distance=0
tux_move += _("right") + " " + str(abs(int(ba-a))) + "\n"
ba += abs(int(ba-a))
elif(ba-a>0):
if(cumulative_distance):
tux_move += _("forward") + " " + str(cumulative_distance) + "\n"
cumulative_distance=0
tux_move += _("left") + " " + str(abs(int(ba-a))) + "\n"
ba -= abs(int(ba-a))
cumulative_distance += int(d/self.sea_ratio)
# Final move, add an ofset because we loose space in abs()
tux_move += _("forward") + " " + str(cumulative_distance+2) + "\n"
self.right_boat.tb.set_text(tux_move)
self.right_boat.tv.set_editable(False)
# ----------------------------------------
# The RULER
#
def ruler_item_event(self, widget, event=None):
if event.type == gtk.gdk.BUTTON_PRESS:
if event.button == 1:
self.pos_x = event.x
self.pos_y = event.y