Mob implementation and AI
Mob implementation and AI changes
Fixed sound issue, replaced walk.wav, tidied up code.

Problem: When moving sideways and jumping the jump sound would not
trigger.

Reason: The walk sound was getting spammed.

Fix: Put the footstep sound control inside an if playWalk == False

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Created backup folder
changed player jump height

changed player.vspeed
cleaning up
cleaning up
cleaning up
The mob can now jump
The mob can now jump