[Tutorial]How to use Blender Game Engine Mouse Follow

[Elec0]

Here is a tutorial on how to use the mouse following feature in BGE.






Here is the script that you will need:

Code: Select all

######################################################
#
#    MouseLook.py        Blender 2.46
#
#    Tutorial for using MouseLook.py can be found at
#
#    www.tutorialsforblender3D.com
#                                                                                                         
######################################################

# import Rasterizer
import Rasterizer

# get controller
controller = GameLogic.getCurrentController()

# get the object this script is attached to
player = controller.getOwner()

# Get sensor named Mouse
mouse = controller.getSensor("Mouse")
   
# Get the actuators
lookLeftRight = controller.getActuator("LookLeftRight")
lookUpDown = controller.getActuator("LookUpDown") 

# get width and height of game window
width = Rasterizer.getWindowWidth()
height = Rasterizer.getWindowHeight()
     
# define mouse movement function
def mouseMove():
   
   # distance moved from screen center       
   x = width/2 - mouse.getXPosition()
   y = height/2 - mouse.getYPosition()
      
   # intialize mouse so it doesn't jerk first time
   if hasattr(player, 'mouseInit') == False:
      x = 0
      y = 0
      # bug in Add Property
      # can't use True.  Have to use 1
      player.mouseInit = 1
      
   # return mouse movement
   return (x, y)

# get mouse movement from function
move = mouseMove()

# set mouse sensitivity
sensitivity = 0.001

# Amount, direction and sensitivity
leftRight = move[0] * sensitivity
upDown = move[1] * sensitivity

# set the values
lookLeftRight.setDRot( 0.0, 0.0, leftRight, False)   
lookUpDown.setDRot( upDown, 0.0, 0.0, True)

# Use them
GameLogic.addActiveActuator(lookLeftRight, True)
GameLogic.addActiveActuator(lookUpDown, True)

# Center mouse in game window
Rasterizer.setMousePosition(width/2, height/2)



[hydra_skillz]

Nice tutorial, but might want to call it mouse look not mouse follow.

[Elec0]

Ah well, either way.
Heh, I actually edited the script so it would be a mouse follow.

[renox777]

It wont let me paste it. Is there a key i can press, cuz i just use the rmb and it wont do it.

[hydra_skillz]

Press select all and then ctrl + c, then ctrl + v in the text window.

[3D Joel]

Hey, I'm looking for something close to that... but not quite the same.

I want to attach an empty to the movement of the camera... That way when I click, where ever my mouse it, that will be where the empty shoots the object.

I already know how to make emptys create object's and all, I just need to know how to have the empty follow the mouse...

[chewanater]

I followed the tutorial and it did nothing. What version of Python do I need? I have 2.5 (I've actually been trying to get 2.6 installed).

[hydra_skillz]

You need 2.5. If there aren't any errors in the console window, then you probably connected a logic brick wrong.

[Samuel_benson]

WOW, didn't think it was that easy! Thanks for the tutorial really clear to follow, one question: how about the camera following the mouse, but its centre of rotation is around a vehicle which can be driven using the keyboard? (no zoom capabilities wanted) if you have played the game Halo...

Cheers in advance

Sam

[billymcguffin]

this template has that feature (rotate around the character).