fps mouse look help

Game Engine Game Engine Support and Discussion
#1

alright… i just cant figure this one out… i have a full rigged character and im all set and ready to start with the mouse look script… how can i set it up so when i look left and right the whole character turns and when i look up and down only the top half/arms move up and down? (and the legs stay where they are)

this is the script im using if thats any help

######################################################
#
#    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 = 0.0005


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

# Smooth movement
player.oldLeftRight = (player.oldLeftRight*0.5 + leftRight*0.1)
player.oldUpDown = (player.oldUpDown*0.5 + upDown*0.1)

upDown = player.oldUpDown
leftRight = player.oldLeftRight

# 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)
#2

I guess that would require the ability to rotate bones using python…

I think it’s possible, but I fear that’s something I don’t know how to do.

#3

Um, I think the simpler way to do this is splitting the character in two parts…

I mean, you use 2 Meshes, one for the lower body and the other for the upper, same for the armature ( and parent the two half together of course )

If someone has a better/simpler solution please share, I would like to learn how to do it too, since splitting a character doesn’t seem very “professional” to me ^_^"

P.S.: Yes, there should be a way to rotate bones in Python but i never tried nor seen it unfortunately :0) It’ld be a very nice technique to use tough :b

Cya, hope this turned on a little light xD

#4

yeah… i was thinking in school today… that maybe i should just split the ameture and not the mesh but the only issue with that is… when a person looks up and down while holding a gun… he dosent just bend at the back… his arms and head move the most… so im gunna keep thinking but if anyone has any other ideas plz let me know.

#5

I found out how to rotate bones using python.

it’s quite easy to find out.

the hardcore part is when you have to figure out how to
convert XYZ rotation into quaterions… :eek:

still, I found out how to do that.

now, something even harder : get the euler rotation from the quaternion mess.

…seriously, if I can grab the stupid who though it would be cool to use quaternions… :mad:

#6

Um, I done some research too, but unfortunately I found only bad news:

Seems like the only way to actually manipulate bones in Python is using Blender.Armature. But, the Blender module its not for realtime use, its In-Blender only ( for example moving bones is like selecting a bone and rotating with R, it only affects Blender not the game engine )

I could be wrong tough, I havn’t done a very approfondite research, I just googled so…

But… I have a little present for you, an example of a simple character with a Resident Evil 4 Style Camera ( omg im becoming a pro! :eek: xd ) - It’s using your script ( wich is quite obsolete btw, it uses old code but this doesn’t matter now ), there are 2 meshes ( made out of cubes, i suck at modelling ) and 2 armatures parented to each other so that the lower body moves everything, but it just looks around, no movement. Very basic but this should illustrate the point quite well…

Hope this will be helpfull to you :slight_smile:

Cya

Attachments

TestFPSChar.blend (176 KB)

#7

thanks thats very helpful… i am now planing to redesign my character model and i will try splitting it like that… so ill see what happens! thanks!

#8

Glad I was of some help :slight_smile:

Cya have fun