Hi,
I am new to Panda.
I m right now able to achieve horizontal and vertical panning with middle button of mouse. but the environment also twists and turns. How to achieve an effect of a person looking up/down or left/right without the environment turning around. i.e. on moving the cursor up/down, the view should not tilt except 90degrees. up or down. Similarly for left and right.
The code as of now is as follows:
import direct.directbase.DirectStart
from pandac.PandaModules import CollisionTraverser,CollisionNode
from pandac.PandaModules import CollisionHandlerQueue,CollisionRay
from pandac.PandaModules import Filename
from pandac.PandaModules import PandaNode,NodePath,Camera,TextNode
from pandac.PandaModules import Vec3,Vec4,BitMask32
from direct.gui.OnscreenText import OnscreenText
from direct.actor.Actor import Actor
from direct.task.Task import Task
from direct.showbase.DirectObject import DirectObject
import random, sys, os, math
#Load the first environment model
environ = loader.loadModel(“models/environment”)
environ.reparentTo(render)
environ.setScale(0.25,0.25,0.25)
environ.setPos(-8,42,0)
def setMouseButton( self, button, value ):
self.mouse[ button ] = value
def _setupBase( self ):
props = base.win.getProperties( )
props.setCursorHidden( True )
self.centerx = props.getXSize( )/2
self.centery = props.getYSize( )/2
base.disableMouse( )
base.setBackgroundColor( 0, 0, 0 )
base.win.requestProperties( props )
base.win.movePointer( 0, self.centerx, self.centery )
def _setupInput( self ):
self.accept( ‘escape’, self.exit )
#self.accept( 'mouse1', self.setMouseButton, [ 0, 1 ] )
#self.accept( 'mouse1-up', self.setMouseButton, [ 0, 0 ] )
self.accept( 'mouse2', self.setMouseButton, [ 1, 1 ] )
self.accept( 'mouse2-up', self.setMouseButton, [ 1, 0 ] )
#self.accept( 'mouse3', self.setMouseButton, [ 2, 1 ] )
#self.accept( 'mouse3-up', self.setMouseButton, [ 2, 0 ] )
def updateCamera( self, task ):
md = base.win.getPointer( 0 )
x = md.getX( )
y = md.getY( )
if base.win.movePointer( 0, self.centerx, self.centery ):
self.heading += ( x - self.centerx ) * -0.2
self.pitch += ( y - self.centery ) * -0.2
self.pitch = clampScalar( self.pitch, -80.0, 80.0 )
if self.mouse[ 0 ]:
speed = 500 * ( task.time - self.last )
elif self.mouse[ 1 ] or self.mouse[ 2 ]:
speed = -500 * ( task.time - self.last )
else:
speed = 0
base.camera.setHpr( self.heading, self.pitch, 0 )
base.camera.setPos( base.camera, Vec3( 0, 1, 0 ) * speed )
self.last = task.time
return Task.cont
run()
