Below is an example of a free camera.
Control:
Hold down the right mouse button.
Move buttons : W - forward , S - backward , A - left , D - right , Q - up , E - down , Shift - Accelerate ,
mouse wheel - speed.
Example of use:
import direct.directbase.DirectStart
from camera import CamFree
environ = loader.loadModel("models/environment")
environ.reparentTo(render)
environ.setScale(0.25,0.25,0.25)
environ.setPos(-8,42,-10)
CamFree()
run() camera.py
from direct.showbase import DirectObject
from pandac.PandaModules import Vec3, WindowProperties
from direct.gui.OnscreenText import OnscreenText
import math
class CamFree(DirectObject.DirectObject):
def __init__(self):
base.disableMouse()
self.keyMap = {"FORWARD":0, "BACK":0, "RIGHT":0, "LEFT":0, "Mouse3":0, "LSHIFT":0, "UPWARDS":0, "DOWNWARDS":0}
self.accept("w", self.setKey, ["FORWARD",1])
self.accept("w-up", self.setKey, ["FORWARD",0])
self.accept("s", self.setKey, ["BACK",1])
self.accept("s-up", self.setKey, ["BACK",0])
self.accept("d", self.setKey, ["RIGHT",1])
self.accept("d-up", self.setKey, ["RIGHT",0])
self.accept("a", self.setKey, ["LEFT",1])
self.accept("a-up", self.setKey, ["LEFT",0])
self.accept("q", self.setKey, ["UPWARDS",1])
self.accept("q-up", self.setKey, ["UPWARDS",0])
self.accept("e", self.setKey, ["DOWNWARDS",1])
self.accept("e-up", self.setKey, ["DOWNWARDS",0])
self.accept("mouse3", self.setKey, ["Mouse3",1])
self.accept("mouse3-up", self.setKey, ["Mouse3",0])
self.accept("lshift", self.setKey, ["LSHIFT",1])
self.accept("lshift-up", self.setKey, ["LSHIFT",0])
self.accept("wheel_up", self.CamSpeed, [1.1])
self.accept("wheel_down", self.CamSpeed, [0.9])
self.SpeedCam = 0.1
self.SpeedRot = 0.05
self.SpeedMult = 5
self.textSpeed = OnscreenText(pos = (0.9, -0.9), scale = 0.1)
self.CursorOffOn = 'On'
self.props = WindowProperties()
taskMgr.add(self.CamControl, 'CamControl')
def setKey(self, key, value):
self.keyMap[key] = value
def CamSpeed(self, sd):
self.SpeedCam *= sd
def CamControl(self, task):
if (self.keyMap["Mouse3"] != 0):
self.textSpeed.show()
if (self.CursorOffOn == 'On'):
self.props.setCursorHidden(True)
base.win.requestProperties(self.props)
self.CursorOffOn = 'Off'
dirFB = base.camera.getMat().getRow3(1)
dirRL = base.camera.getMat().getRow3(0)
md = base.win.getPointer(0)
x = md.getX()
y = md.getY()
Speed = self.SpeedCam
if (self.keyMap["LSHIFT"]!=0):
Speed = self.SpeedCam*self.SpeedMult
if (self.keyMap["FORWARD"]!=0):
camera.setPos(camera.getPos()+dirFB*Speed)
if (self.keyMap["BACK"]!=0):
camera.setPos(camera.getPos()-dirFB*Speed)
if (self.keyMap["RIGHT"]!=0):
camera.setPos(camera.getPos()+dirRL*Speed)
if (self.keyMap["LEFT"]!=0):
camera.setPos(camera.getPos()-dirRL*Speed)
if (self.keyMap["UPWARDS"]!=0):
camera.setZ(camera.getZ()+Speed)
if (self.keyMap["DOWNWARDS"]!=0):
camera.setZ(camera.getZ()-Speed)
if base.win.movePointer(0, base.win.getXSize()//2, base.win.getYSize()//2):
camera.setH(camera.getH() - (x - base.win.getXSize()/2)*self.SpeedRot)
camera.setP(camera.getP() - (y - base.win.getYSize()/2)*self.SpeedRot)
if (camera.getP()<=-90.1):
camera.setP(-90)
if (camera.getP()>=90.1):
camera.setP(90)
self.textSpeed.setText('Speed: '+str("%.4f" % Speed))
else:
self.textSpeed.hide()
self.CursorOffOn = 'On'
self.props.setCursorHidden(False)
base.win.requestProperties(self.props)
return task.cont