/
mouseLook.py
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/
mouseLook.py
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from panda3d.core import Vec3, Quat, Point3, WindowProperties, PythonTask
from direct.interval.IntervalGlobal import *
from direct.showbase.DirectObject import DirectObject
class MouseLook(DirectObject, object):
MLMFPP = 0
MLMOrbit = 1
MLMPan = 2
def __init__(self, targetCam = None, targetWin = None):
self.setTargetCamera(targetCam)
self.setTargetWin(targetWin)
self.orbitCenter = Point3(0, 0, 0)
self.mouseLookMode = self.MLMOrbit
self.zoomOrtho = False
self.centerMouse = False
self.limitH = {
"left": None,
"right": None,
"relative": render,
}
self.pause = False
self.movementSpeed = 128.0
self.wheelSpeed = 8.0
self.mouseLookSpeed = [0.1, 0.1]
self.camMove = dict(
forward = False,
backward = False,
strafeLeft = False,
strafeRight = False,
down = False,
up = False,
)
def zoom(self, direction):
step = 64
top = 32768
bottom = 64
fsH, size = self.lens.getFilmSize()
size -= direction * step
if size < bottom:
size = bottom
for vp in self.editorBase.viewports[1:4]:
vp.zoomLocal(size)
def zoomLocal(self, size):
fsH = size * self.aspectRatio
fsV = size
self.lens.setFilmSize(fsH, fsV)
#~ def pointAt(self, target, time):
#~ Sequence(
#~ Func(self.setPause, True),
#~ CameraLookAtInterval(self.targetCamera, 0, time, target),
#~ Func(self.setPause, False),
#~ ).start()
def enable(self, ownTask = True):
self.prevX = self.targetWin.getPointer(0).getX()
self.prevY = self.targetWin.getPointer(0).getY()
if ownTask:
taskMgr.add(self.update, "UpdateMouseLook")
def disable(self):
taskMgr.remove("UpdateMouseLook")
def setPause(self, state):
self.pause = state
def clearMovement(self):
self.camMove = dict(
forward = False,
backward = False,
strafeLeft = False,
strafeRight = False,
down = False,
up = False,
)
def setLimitH(self, left, right, relative = None):
if relative is None:
relative = render
self.limitH = {
"left": left,
"right": right,
"relative": relative
}
def enableMovement(self):
self.accept("w", self.setCamMove, extraArgs = ["forward", True])
self.accept("w-up", self.setCamMove, extraArgs = ["forward", False])
self.accept("s", self.setCamMove, extraArgs = ["backward", True])
self.accept("s-up", self.setCamMove, extraArgs = ["backward", False])
self.accept("a", self.setCamMove, extraArgs = ["strafeLeft", True])
self.accept("a-up", self.setCamMove, extraArgs = ["strafeLeft", False])
self.accept("d", self.setCamMove, extraArgs = ["strafeRight", True])
self.accept("d-up", self.setCamMove, extraArgs = ["strafeRight", False])
self.accept("control", self.setCamMove, extraArgs = ["down", True])
self.accept("control-up", self.setCamMove, extraArgs = ["down", False])
self.accept("space", self.setCamMove, extraArgs = ["up", True])
self.accept("space-up", self.setCamMove, extraArgs = ["up", False])
self.accept("wheel_up", self.moveCamera, extraArgs = [Vec3(0, 1, 0)])
self.accept("wheel_down", self.moveCamera, extraArgs = [Vec3(0, -1, 0)])
def disableMovement(self):
self.ignoreAll()
def setCamMove(self, key, val):
self.camMove[key] = val
def centerMouse(self):
winSizeX = self.targetWin.getXSize()/2
winSizeY = self.targetWin.getYSize()/2
self.targetWin.movePointer(0, winSizeX, winSizeY)
def update(self, task=None):
if self.pause:
return PythonTask.cont
if self.centerMouse:
self.updateCenter()
else:
self.updateNoCenter()
if self.limitH["left"] is not None:
rel = self.limitH["relative"]
h = self.targetCamera.getH(rel)
if h < self.limitH["left"]:
h = self.limitH["left"]
elif h > self.limitH["right"]:
h = self.limitH["right"]
self.targetCamera.setH(rel, h)
linVel = Vec3(0,0,0)
if self.camMove["forward"]: linVel[1] = self.movementSpeed
if self.camMove["backward"]: linVel[1] = -self.movementSpeed
if self.camMove["strafeLeft"]: linVel[0] = -self.movementSpeed
if self.camMove["strafeRight"]: linVel[0] = self.movementSpeed
if self.camMove["up"]: linVel[2] = self.movementSpeed
if self.camMove["down"]: linVel[2] = -self.movementSpeed
linVel *= globalClock.getDt()
self.moveCamera(linVel)
return PythonTask.cont
def updateCenter(self):
winSizeX = self.targetWin.getXSize()/2
winSizeY = self.targetWin.getYSize()/2
mouse = self.targetWin.getPointer(0)
deltaX = (mouse.getX() - winSizeX) * self.mouseLookSpeed[0]
deltaY = (mouse.getY() - winSizeY) * self.mouseLookSpeed[1]
if self.mouseLookMode == self.MLMFPP:
self.updateFPP(deltaX, deltaY)
elif self.mouseLookMode == self.MLMOrbit:
self.updateOrbit(deltaX, deltaY)
elif self.mouseLookMode == self.MLMPan:
self.updatePan(deltaX, deltaY)
self.updateAlternate(deltaX, deltaY)
self.targetWin.movePointer(0, winSizeX, winSizeY)
def updateNoCenter(self):
mouse = self.targetWin.getPointer(0)
x = mouse.getX()
y = mouse.getY()
deltaX = (x - self.prevX) * self.mouseLookSpeed[0]
deltaY = (y - self.prevY) * self.mouseLookSpeed[1]
self.prevX = x
self.prevY = y
self.updateAlternate(deltaX, deltaY)
def updateAlternate(self, deltaX, deltaY):
if self.mouseLookMode == self.MLMFPP:
self.updateFPP(deltaX, deltaY)
elif self.mouseLookMode == self.MLMOrbit:
self.updateOrbit(deltaX, deltaY)
elif self.mouseLookMode == self.MLMPan:
self.updatePan(deltaX, deltaY)
def moveCamera(self, vector):
self.targetCamera.setPos(self.targetCamera, vector * self.wheelSpeed)
def rotateAround(self, node, point, axis, angle, relative):
quat = Quat()
quat.setFromAxisAngle(angle, render.getRelativeVector(relative, axis))
relativePos = node.getPos(render) - point
relativePosRotated = quat.xform(relativePos)
absolutePosRotated = relativePosRotated + point
node.setPos(render, absolutePosRotated)
node.setQuat(render, node.getQuat(render) * quat)
def setTargetCamera(self, cam):
if cam is None:
self.targetCamera = base.camera
else:
self.targetCamera = cam
def setTargetWin(self, win):
if win is None:
self.targetWin = base.win
else:
self.targetWin = win
def setMouseModeRelative(self, state):
props = WindowProperties()
if not state:
props.setMouseMode(WindowProperties.MAbsolute)
else:
props.setMouseMode(WindowProperties.MRelative)
self.targetWin.requestProperties(props)
def setCursorHidden(self, state):
props = WindowProperties()
props.setCursorHidden(state)
self.targetWin.requestProperties(props)
def updateFPP(self, deltaX, deltaY):
#~ print "no center"
p = self.targetCamera.getP(render) - deltaY
h = self.targetCamera.getH(render) - deltaX
if abs(p) > 90:
p = 90 * cmp(p, 0)
self.targetCamera.setP(p)
self.targetCamera.setH(h)
def updateOrbit(self, deltaX, deltaY):
self.rotateAround(self.targetCamera, self.orbitCenter, Vec3(0, 0, 1), -deltaX, render)
self.rotateAround(self.targetCamera, self.orbitCenter, Vec3(1, 0, 0), -deltaY, self.targetCamera)
def updatePan(self, deltaX, deltaY):
vector = Vec3(-deltaX, 0, deltaY) * 1/globalClock.getDt() * 0.01
self.moveCamera(vector)
if __name__ == "__main__":
from direct.showbase.ShowBase import ShowBase
import sys
ShowBase()
base.camLens.setFov(90.0)
base.disableMouse()
smiley = loader.loadModel("smiley")
smiley.reparentTo(render)
smiley.setScale(128)
base.accept("escape", sys.exit)
base.camera.setY(-1024)
m = MouseLook()
m.enable()
m.enableMovement()
m.setMouseModeRelative(True)
m.setCursorHidden(True)
mode = m.mouseLookMode
def cycle():
global mode
mode += 1
if mode > 3:
mode = 0
print mode
m.mouseLookMode = mode
base.accept("f1", cycle)
run()