Blender game character is not responding to game logic

Question

I have made an action animation with an IK rig. The mesh has a mirror, subsurf, and armature modifier.

I began making my character walk by using a keyboard sensor connected to an and brick connected to a motion and an action brick. I set the action to my walking animation and set the start to 0 and the end to 80 on play (I wanted to test it before I looped it) but when I pressed P and then W for my walking the character moved but the animation did not play.

Here is the .blend file

Answer 1

The BGE can't handle the Mirror Modifier when you apply it and change the order of the modifiers:

Some notes:

• For performance and to avoid issues it would be better to apply the subsurf also
• 80 Frames is a bit long for this walk cycle

• Loop Stop / End should be used in the action actuators

• Related: How should an animated character be moved while repeating a walk cycle?

Result (reduced to 20 frames and adjusted movement):

Answer 2

The blender game engine doesn't support IK rigs. I had the same problem some time ago. Unfortunatly I ended up recreating the animation. I then used the Auto IK function to still use IK.