Little Game

Scripting Issues
1

I wrote this little game

import direct.directbase.DirectStart
from direct.showbase.DirectObject import DirectObject
from pandac.PandaModules import *
from direct.gui.DirectGui import OnscreenText
from direct.gui.DirectGui import OnscreenImage
from direct.task import Task
from direct.actor.Actor import Actor
from direct.interval.IntervalGlobal import *
import math,sys

class world(DirectObject):
      def _init_ (self):
            
            #Carico il modello 'ship1'
            self.ship=loader.loadModel('Models/ship1')
            self.ship.reparentTo(render)
            #Carico l'ambiente amb1
            self.amb1=loader.loadModel('Models/amb1')
            self.amb1.reparentTo(render)
            
            #posiziono la camera
            base.disableMouse()
            base.camera.setPosHpr(self.ship.getX()-60,self.ship.getY(),self.ship.getZ()+9,self.ship.getH()+270,0,0)
            
            self.accept('arrow_up',self.setKey,['avanti',1])
            self.accept('arrow_up-up', self.setKey, ['avanti',0])

            taskMgr.add(self.move,"moveTask")
            
      def setKey (self,key,value):
            self.keyMap[key]=value
            
      def move (self,task):
            if (keyMap['avanti']!=0):
                  self.ship.setPos(self.ship.getX()+5,self.ship.getY(),self.ship.getZ())

w=world()
run()

but the result is a blank window.

what is the problem? can you help me please?
[/code]

2

i’d guess your camera isnt looking at your ship.
you can try to use the lookAt() method to make sure your ship will be in view.

3

nothing to do!

4

Now I’m trying to do the same thing without classes.

import direct.directbase.DirectStart
from direct.showbase.DirectObject import DirectObject
from pandac.PandaModules import *
from direct.gui.DirectGui import OnscreenText
from direct.gui.DirectGui import OnscreenImage
from direct.task import Task
from direct.actor.Actor import Actor
from direct.interval.IntervalGlobal import *
import math,sys

#Carico il modello 'ship1'
ship=loader.loadModel('Models/ship1')
ship.reparentTo(render)
#Carico l'ambiente amb1
amb1=loader.loadModel('Models/amb1')
amb1.reparentTo(render)
amb1.setPosHpr(50,4,-5,90,0,0)

#posiziono la camera
base.disableMouse()
base.camera.setPos(ship.getX()-60,ship.getY(),ship.getZ()+9)
base.camera.lookAt(ship)

run()

Is it possible?

5

last version: blank window!

import direct.directbase.DirectStart
from direct.showbase.DirectObject import DirectObject
from pandac.PandaModules import *
from direct.gui.DirectGui import OnscreenText
from direct.gui.DirectGui import OnscreenImage
from direct.task import Task
import math

class world (DirectObject):
	def _init_(self):
		self.keyMap={'avanti':0}

		#Carico il modello 'ship1'
		self.ship=loader.loadModel('Models/ship1')
		self.ship.reparentTo(render)
		#Carico l'ambiente amb1
		self.amb1=loader.loadModel('Models/amb1')
		self.amb1.reparentTo(render)
		self.amb1.setPosHpr(50,4,-5,90,0,0)

		#posiziono la camera
		base.disableMouse()
		base.camera.setPos(self.ship.getX()-60,self.ship.getY(),self.ship.getZ()+9)
		base.camera.lookAt(self.ship)

		self.accept('arrow_up',setkey,['avanti',1])
		taskMgr.add(self.move,'moveTask')
		
	def setkey(self,key,value):
		self.keyMap[key]=value
	
	def move(self,task):
		
		if (keyMap['avanti']!=1) :
			self.ship.setPos(self.ship.getX()+1,self.ship.getY(),self.ship.getZ())
	
w=world()
run()

Why??? :cry:

6

Are you sure that your ship model is not invisible? And that it’s not too far away or too close?

David

7

yes i’m sure!

8

Well, here’s one problem:

   def _init_(self):

You have misspelled the name of the init method (it should have a double leading and trailing underscore, not a single underscore). Your constructor is never getting called!

I discovered this by pasting your code and discovering that w.keyMap, w.ship, and w.amb1 were all undefined, as if they’d never been assigned.

David

9

Thanks it works!

EDIT:

but the ship doesn’t move why?

import direct.directbase.DirectStart
from direct.showbase.DirectObject import DirectObject
from pandac.PandaModules import *
from direct.gui.DirectGui import OnscreenText
from direct.gui.DirectGui import OnscreenImage
from direct.task import Task
import math

class world (DirectObject):
	def __init__(self):
		self.keyMap={'avanti':0}

		#Carico il modello 'ship1'
		self.ship=loader.loadModel('Models/ship1')
		self.ship.reparentTo(render)
		#Carico l'ambiente amb1
		self.amb1=loader.loadModel('Models/amb1')
		self.amb1.reparentTo(render)
		self.amb1.setPosHpr(50,4,-5,90,0,0)

		#posiziono la camera
		base.disableMouse()
		base.camera.setPos(self.ship.getX()-60,self.ship.getY(),self.ship.getZ()+9)
		base.camera.lookAt(self.ship)

		self.accept('arrow_up',self.setkey,['avanti',1])
		taskMgr.add(self.move,'moveTask')
		
	def setkey(self,key,value):
		self.keyMap[key]=value
	
	def move(self,task):
		if (self.keyMap['avanti']!=1) :
			self.ship.setFluidPos(self.ship.getX()+10,self.ship.getY(),self.ship.getZ())
	
w=world()
run()
10

now it work!

import direct.directbase.DirectStart
from direct.showbase.DirectObject import DirectObject
from pandac.PandaModules import *
from direct.gui.DirectGui import OnscreenText
from direct.gui.DirectGui import OnscreenImage
from direct.task import Task
import math

class world (DirectObject):
	def __init__(self):
		self.keyMap={'avanti':0,'rotSX':0,'rotDX':0}
		self.prevtime=0

		#Carico il modello 'ship1'
		self.ship=loader.loadModel('Models/ship1')
		self.ship.reparentTo(render)
		#Carico l'ambiente amb1
		self.amb1=loader.loadModel('Models/amb1')
		self.amb1.reparentTo(render)
		self.amb1.setPosHpr(50,4,-5,90,0,0)

		#posiziono la camera
		base.disableMouse()
		base.camera.setPos(self.ship.getX()-60,self.ship.getY(),self.ship.getZ()+9)
		base.camera.lookAt(self.ship)
		base.camera.reparentTo(self.ship)

		self.accept('arrow_up',self.setkey,['avanti',1])
		self.accept('arrow_up-up',self.setkey,['avanti',0])
		self.accept('arrow_left',self.setkey,['rotSX',1])
		self.accept('arrow_left-up',self.setkey,['rotSX',0])
		self.accept('arrow_right',self.setkey,['rotDX',1])
		self.accept('arrow_right-up',self.setkey,['rotDX',0])
		taskMgr.add(self.move,'moveTask')
		
	def setkey(self,key,value):
		self.keyMap[key]=value
	
	def move(self,task):
		elapsed=task.time-self.prevtime
		if (self.keyMap['avanti']!=0) :
			back=self.ship.getNetTransform().getMat().getRow3(0)
			back.normalize()
			self.ship.setFluidPos(self.ship.getPos()+back*(elapsed*10))
		if (self.keyMap['rotSX']!=0):
			self.ship.setH(self.ship.getH()+elapsed*180)
		if (self.keyMap['rotDX']!=0):
			self.ship.setH(self.ship.getH()-elapsed*180)
		self.prevtime=task.time
		return task.cont
w=world()
run()