Auto melee

[cxong]

Add a weapon slot for auto-melee weapons

• Automatically switch to it while running into enemies (unless already holding another melee weapon)
• Automatically switch back to previous gun when pressing shoot
• Auto melee weapon doesn't damage hostages, good guys, victims, objects
• Always default to fists for auto melee

[cxong]

One problem with auto melee is it messes with victims and the ninja bonus. We don't want to automatically attack victims, especially if the player is holding a gun, but if we turn off auto melee for victims, it makes the ninja bonus too easy to get - just run around with a knife and not worry about victims at all.

Therefore auto melee should be optional. To avoid having it impacting the rest of C-Dogs, it can be a weapon-level option.

[cxong]

Also:

• Auto switch to melee weapon if guns are out of ammo

[cxong]

[cxong]