Actions using Python?(.blend posted)

Game Engine Game Engine Support and Discussion
1

I’m trying to program my first animated character controls. I figured out the movement controls, but I can’t get the actions to work. Could someone please provide me with a basic outline of how the actions work in python so that I can apply it to my file? This is in blender 2.59 btw.

thanks in advance!

2

I feel like I’m missing something in my description. :confused: Here’s the code if this helps:

import bge

def main():

cont = bge.logic.getCurrentController()
player = cont.owner
keyboard = bge.logic.keyboard
scene = bge.logic.getCurrentScene()

#properties
movSpd = 0.3
rotSpd = 0.07

#animations - basic
if bge.logic.KX_INPUT_ACTIVE == keyboard.events[bge.events.UPARROWKEY]:
    player.applyMovement((0, movSpd, 0), True)
    
if bge.logic.KX_INPUT_ACTIVE == keyboard.events[bge.events.RIGHTARROWKEY]:
    player.applyRotation((0, 0, -rotSpd), True)
    
if bge.logic.KX_INPUT_ACTIVE == keyboard.events[bge.events.LEFTARROWKEY]:
    player.applyRotation((0, 0, rotSpd), True)

main()

Sorry if it’s too nooby to behold, but that’s what I’ve got. The first IF statement is for the forward movement. I tried adding the playAction function under the player.applyMovement, but it didn’t seem to work.

Here’s how it looked:

import bge

def main():

cont = bge.logic.getCurrentController()
player = cont.owner
keyboard = bge.logic.keyboard
scene = bge.logic.getCurrentScene()

#properties
movSpd = 0.3
rotSpd = 0.07

#animations - basic
if bge.logic.KX_INPUT_ACTIVE == keyboard.events[bge.events.UPARROWKEY]:
    player.applyMovement((0, movSpd, 0), True)
    player.playAction(Barrot_run, 7, 20, layer=1, priority=5, blendin=5, play_mode=ACT_MODE_LOOP, layer_weight=0.0, ipo_flags=0, speed=1.0)
    
if bge.logic.KX_INPUT_ACTIVE == keyboard.events[bge.events.RIGHTARROWKEY]:
    player.applyRotation((0, 0, -rotSpd), True)
    
if bge.logic.KX_INPUT_ACTIVE == keyboard.events[bge.events.LEFTARROWKEY]:
    player.applyRotation((0, 0, rotSpd), True)

main()

What did I do wrong? I didn’t know what to put for ipo_flags and weight, so I kept theme at their default values.

Please help.T.T
^

3

This should work:



arm = obj.childrenRecursive['PlayerArmature']
arm.playAction('Animationname', startframe, endframe) # This should be called on the first frame that you want to play this animation on, and on no others.
4

There’s your problem.
You have to tell it how to loop, but in order to do so, you have to use a type.
change ACT_MODE_LOOP
to
bge.logic.KX_ACTION_MODE_LOOP

This is because the playAction() feature is not accepting a string, but a type (method) of playing an animation, which is defined in the types.

5

A simplified .blend, that clearly illustrates the problem, would help us help you.

Without that, I can’t really say with any certainty, but maybe player.playAction is supposed to be called only once? - I assume you’re running it always because of applyMovement/Rotation which has to be called on every tick in order to perform.

Did you try using the actuator? Does that work?

6

@Goran - That is indeed the case - the playAction function should be called on the frame that you want the animation to start. Coupling this with my Callbacks class in my BGHelper module is helpful. :smiley:

7

is useful tell that KX…etc?
I ever believe is to avoid (heavy)
I’m wrong?

8

applyMovement is not too good(recent discovery : D), cannot make a climb!

9

Thanks a lot for your help guys! I will try each suggestion and see what happens.

10

Alright, so my tries ended up with failure (most likely because of my inexperience).:frowning: Could someone please take the .blend file, find out what’s wrong, and tell me how to fix it please?
Here it is:
barrot.blend (1.41 MB)

11

Okay, I think I’ve got it. It’s generally better to have a collision box performing the logic with the armature parented to it, though.

barrot.blend (1.37 MB)

By the way, nice model. :slight_smile:

12

You need to use 2.60. 2.59 doesn’t have the Python API for animations.

13

Thanks a lot SolarLune and Moguri! It didn’t work until I used 2.6.