I have been faffing around trying to get a semblance of control over the camera and have stripped the code found in the bump map example/sample to get it. I can now move the camera forward and back and strafe left and right while turning the camera with the mouse. I thought I’d submit it for comment and, hopefully, feedback that might make the code better. Also, can someone explain what a dir is… it is highlighted in the code. You can save the code into the bump map example and it will run. ‘e’ forward, ‘f’ back, ‘a’ strafe left, ‘space’ strafe right.
from panda3d.core import loadPrcFileData
import direct.directbase.DirectStart
from panda3d.core import WindowProperties
from panda3d.core import AmbientLight,PointLight
from panda3d.core import TextNode
from panda3d.core import Point3,Vec3,Vec4
from direct.task.Task import Task
from direct.showbase.DirectObject import DirectObject
import sys,os
class FPSCamera(DirectObject):
def __init__(self):
self.room = loader.loadModel("models/abstractroom")
self.room.reparentTo(render)
# Make the mouse invisible, turn off normal mouse controls
base.disableMouse()
props = WindowProperties()
props.setCursorHidden(True)
base.win.requestProperties(props)
# Set the current viewing target
self.focus = Vec3(0,0,0)
self.heading = 0
self.pitch = 0
self.mousex = 0
self.mousey = 0
self.last = 0
self.keys = [0,0,0,0]
# Start the camera control task:
taskMgr.add(self.controlCamera, "camera-task")
self.accept("escape", sys.exit, [0])
self.accept("e", self.setKeys, [0, 1])#forward
self.accept("e-up", self.setKeys, [0, 0])
self.accept("f", self.setKeys, [1, 1])#back
self.accept("f-up", self.setKeys, [1, 0])
self.accept("a", self.setKeys, [2, 1])#strafe left
self.accept("a-up", self.setKeys, [2, 0])
self.accept("space", self.setKeys, [3, 1])#strafe right
self.accept("space-up", self.setKeys, [3, 0])
# Add an ambient light
alight = AmbientLight('alight')
alight.setColor(Vec4(0.4, 0.4, 0.4, 1))
alnp = render.attachNewNode(alight)
self.room.setLight(alnp)
#switch upon which buttons are pressed with if statements
def setKeys(self, btn, value):
self.keys[btn] = value
#main loop
def controlCamera(self, task):
md = base.win.getPointer(0)
x = md.getX()
y = md.getY()
if base.win.movePointer(0, 100, 100):
self.heading = self.heading - (x - 100) * 0.2
self.pitch = self.pitch - (y - 100) * 0.2
if (self.pitch < -45): self.pitch = -45
if (self.pitch > 45): self.pitch = 45
base.camera.setHpr(self.heading,self.pitch,0)
elapsed = task.time - self.last
dir = base.camera.getMat().getRow3(1)
if (self.last == 0): elapsed = 0
if (self.keys[0]):
dir = base.camera.getMat().getRow3(1) #0 is x, 1 is y, 2 is z,
self.focus = self.focus + dir * elapsed*40 #gives speed
base.camera.setPos(self.focus - (dir*5))
if (self.keys[1]):
dir = base.camera.getMat().getRow3(1)
self.focus = self.focus - dir * elapsed*40
base.camera.setPos(self.focus - (dir*5))
if (self.keys[2]):
dir = base.camera.getMat().getRow3(0)
self.focus = self.focus - dir * elapsed*20
base.camera.setPos(self.focus - (dir*5))
if (self.keys[3]):
dir = base.camera.getMat().getRow3(0)
self.focus = self.focus + dir * elapsed*20
base.camera.setPos(self.focus - (dir*5))
if (base.camera.getX() < -59.0): base.camera.setX(-59)
if (base.camera.getX() > 59.0): base.camera.setX( 59)
if (base.camera.getY() < -59.0): base.camera.setY(-59)
if (base.camera.getY() > 59.0): base.camera.setY( 59)
if (base.camera.getZ() < 5.0): base.camera.setZ( 5)
if (base.camera.getZ() > 45.0): base.camera.setZ( 45)
self.focus = base.camera.getPos() + (dir*5)
self.last = task.time
return Task.cont
play = FPSCamera()
run()
button.