195 lines
6.9 KiB
Python
195 lines
6.9 KiB
Python
#!/usr/bin/env python
|
|
'''
|
|
Demonstrate usage of gamepads and other input devices
|
|
|
|
In this sample you can use a gamepad type device to control the camera and
|
|
show some messages on screen. Using the left stick on the controler will
|
|
move the camera where the right stick will rotate the camera.
|
|
'''
|
|
|
|
from direct.showbase.ShowBase import ShowBase
|
|
from panda3d.core import TextNode, InputDevice, loadPrcFileData, Vec3
|
|
from panda3d.core import TextPropertiesManager
|
|
from direct.gui.OnscreenText import OnscreenText
|
|
|
|
loadPrcFileData("", """
|
|
default-fov 60
|
|
notify-level-device debug
|
|
""")
|
|
|
|
# Informational text in the bottom-left corner. We use the special \5
|
|
# character to embed an image representing the gamepad buttons.
|
|
INFO_TEXT = """Move \5lstick\5 to strafe, \5rstick\5 to turn
|
|
Press \5ltrigger\5 and \5rtrigger\5 to go down/up
|
|
Press \5face_x\5 to reset camera"""
|
|
|
|
|
|
class App(ShowBase):
|
|
def __init__(self):
|
|
ShowBase.__init__(self)
|
|
# Print all events sent through the messenger
|
|
#self.messenger.toggleVerbose()
|
|
|
|
# Load the graphics for the gamepad buttons and register them, so that
|
|
# we can embed them in our information text.
|
|
graphics = loader.loadModel("models/xbone-icons.egg")
|
|
mgr = TextPropertiesManager.getGlobalPtr()
|
|
for name in ["face_a", "face_b", "face_x", "face_y", "ltrigger", "rtrigger", "lstick", "rstick"]:
|
|
graphic = graphics.find("**/" + name)
|
|
graphic.setScale(1.5)
|
|
mgr.setGraphic(name, graphic)
|
|
graphic.setZ(-0.5)
|
|
|
|
# Show the informational text in the corner.
|
|
self.lblInfo = OnscreenText(
|
|
parent = self.a2dBottomLeft,
|
|
pos = (0.1, 0.3),
|
|
fg = (1, 1, 1, 1),
|
|
bg = (0.2, 0.2, 0.2, 0.9),
|
|
align = TextNode.A_left,
|
|
text = INFO_TEXT)
|
|
self.lblInfo.textNode.setCardAsMargin(0.5, 0.5, 0.5, 0.2)
|
|
|
|
self.lblWarning = OnscreenText(
|
|
text = "No devices found",
|
|
fg=(1,0,0,1),
|
|
scale = .25)
|
|
|
|
self.lblAction = OnscreenText(
|
|
text = "Action",
|
|
fg=(1,1,1,1),
|
|
scale = .15)
|
|
self.lblAction.hide()
|
|
|
|
# Is there a gamepad connected?
|
|
self.gamepad = None
|
|
devices = self.devices.getDevices(InputDevice.DeviceClass.gamepad)
|
|
if devices:
|
|
self.connect(devices[0])
|
|
|
|
# Accept device dis-/connection events
|
|
self.accept("connect-device", self.connect)
|
|
self.accept("disconnect-device", self.disconnect)
|
|
|
|
self.accept("escape", exit)
|
|
|
|
# Accept button events of the first connected gamepad
|
|
self.accept("gamepad-back", exit)
|
|
self.accept("gamepad-start", exit)
|
|
self.accept("gamepad-face_x", self.reset)
|
|
self.accept("gamepad-face_a", self.action, extraArgs=["face_a"])
|
|
self.accept("gamepad-face_a-up", self.actionUp)
|
|
self.accept("gamepad-face_b", self.action, extraArgs=["face_b"])
|
|
self.accept("gamepad-face_b-up", self.actionUp)
|
|
self.accept("gamepad-face_y", self.action, extraArgs=["face_y"])
|
|
self.accept("gamepad-face_y-up", self.actionUp)
|
|
|
|
self.environment = loader.loadModel("environment")
|
|
self.environment.reparentTo(render)
|
|
|
|
# Disable the default mouse-camera controls since we need to handle
|
|
# our own camera controls.
|
|
self.disableMouse()
|
|
self.reset()
|
|
|
|
self.taskMgr.add(self.moveTask, "movement update task")
|
|
|
|
def connect(self, device):
|
|
"""Event handler that is called when a device is discovered."""
|
|
|
|
# We're only interested if this is a gamepad and we don't have a
|
|
# gamepad yet.
|
|
if device.device_class == InputDevice.DeviceClass.gamepad and not self.gamepad:
|
|
print("Found %s" % (device))
|
|
self.gamepad = device
|
|
|
|
# Enable this device to ShowBase so that we can receive events.
|
|
# We set up the events with a prefix of "gamepad-".
|
|
self.attachInputDevice(device, prefix="gamepad")
|
|
|
|
# Hide the warning that we have no devices.
|
|
self.lblWarning.hide()
|
|
|
|
def disconnect(self, device):
|
|
"""Event handler that is called when a device is removed."""
|
|
|
|
if self.gamepad != device:
|
|
# We don't care since it's not our gamepad.
|
|
return
|
|
|
|
# Tell ShowBase that the device is no longer needed.
|
|
print("Disconnected %s" % (device))
|
|
self.detachInputDevice(device)
|
|
self.gamepad = None
|
|
|
|
# Do we have any other gamepads? Attach the first other gamepad.
|
|
devices = self.devices.getDevices(InputDevice.DeviceClass.gamepad)
|
|
if devices:
|
|
self.connect(devices[0])
|
|
else:
|
|
# No devices. Show the warning.
|
|
self.lblWarning.show()
|
|
|
|
def reset(self):
|
|
"""Reset the camera to the initial position."""
|
|
|
|
self.camera.setPosHpr(0, -200, 10, 0, 0, 0)
|
|
|
|
def action(self, button):
|
|
# Just show which button has been pressed.
|
|
self.lblAction.text = "Pressed \5%s\5" % button
|
|
self.lblAction.show()
|
|
|
|
def actionUp(self):
|
|
# Hide the label showing which button is pressed.
|
|
self.lblAction.hide()
|
|
|
|
def moveTask(self, task):
|
|
dt = globalClock.getDt()
|
|
|
|
if not self.gamepad:
|
|
return task.cont
|
|
|
|
strafe_speed = 85
|
|
vert_speed = 50
|
|
turn_speed = 100
|
|
|
|
# If the left stick is pressed, we will go faster.
|
|
lstick = self.gamepad.findButton("lstick")
|
|
if lstick.pressed:
|
|
strafe_speed *= 2.0
|
|
|
|
# we will use the first found gamepad
|
|
# Move the camera left/right
|
|
strafe = Vec3(0)
|
|
left_x = self.gamepad.findAxis(InputDevice.Axis.left_x)
|
|
left_y = self.gamepad.findAxis(InputDevice.Axis.left_y)
|
|
strafe.x = left_x.value
|
|
strafe.y = left_y.value
|
|
|
|
# Apply some deadzone, since the sticks don't center exactly at 0
|
|
if strafe.lengthSquared() >= 0.01:
|
|
self.camera.setPos(self.camera, strafe * strafe_speed * dt)
|
|
|
|
# Use the triggers for the vertical position.
|
|
trigger_l = self.gamepad.findAxis(InputDevice.Axis.left_trigger)
|
|
trigger_r = self.gamepad.findAxis(InputDevice.Axis.right_trigger)
|
|
lift = trigger_r.value - trigger_l.value
|
|
self.camera.setZ(self.camera.getZ() + (lift * vert_speed * dt))
|
|
|
|
# Move the camera forward/backward
|
|
right_x = self.gamepad.findAxis(InputDevice.Axis.right_x)
|
|
right_y = self.gamepad.findAxis(InputDevice.Axis.right_y)
|
|
|
|
# Again, some deadzone
|
|
if abs(right_x.value) >= 0.1 or abs(right_y.value) >= 0.1:
|
|
self.camera.setH(self.camera, turn_speed * dt * -right_x.value)
|
|
self.camera.setP(self.camera, turn_speed * dt * right_y.value)
|
|
|
|
# Reset the roll so that the camera remains upright.
|
|
self.camera.setR(0)
|
|
|
|
return task.cont
|
|
|
|
app = App()
|
|
app.run()
|