How to make a reloading for a gun?

[Unreal engine 4]

well, by saying "Reload" i meant the not the reloading animation, i meant how to make the trigger system so it should reload like m4a1 or glock

[Nyove]

Hey Unreal Engine 4,

First, use 'Call Trigger 'B' when Gun 'A' fired' trigger action, linking your gun to a trigger, let's call it trigger A.
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Next, create a timer with 0 delay and enabled on start, targeting another trigger which creates a variable with the ammo count of your gun, let's call it ~ammoCount.
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In trigger A, use trigger action 'Add value B to value of variable A', setting B with -1 to deduct 1 from the ~ammoCount variable each time the gun fired.
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In the same trigger, add a trigger action after the deduction which checks if the ~ammoCount variable equals to 0.
'Continue trigger actions execution only if variable 'A' equals value 'B''
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Below that trigger action, change the gun's fire rate to 0 as well as forcing it to spawn 0 projectile.
'Change Gun 'A' speed multiplier to value 'B''
'Force Gun 'A' spawn 'B' projectiles per shot'
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After that, activate a timer (disabled on start, delay depends on how long you want the gun to reload for).
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This timer executes another trigger which sets the gun's speed multipler and spawn projectiles back to 1 (or whatever you want).

Best regards,
Nyove

[xElijah]

Below that trigger action, change the gun's fire rate to 0 as well as forcing it to spawn 0 projectile

Is it really necessary to set gun's projectile count to 0? I tested it and it seems to work fine just by setting gun's speed multiplier to 0.

To add to what Nyove said, this system doesn't work properly in multiplayer because PB2 is a client-side game.

[Nyove]

Hey xElijah,

Actually no - my bad, I only have the habit of forcing it to spawn 0 projectiles because if you set speed multiplier to 0 at the very start of the map, the gun will be able to shoot once. (It's reloaded at the start of the game.)

In terms of MP, damage wise since PB2 calculate damage based on the client of the attacker, it can actually work. However, visual-wise it will not be synced. The gun may seem to be shooting in other player's screen while the attacker is actually reloading.

To fix this issue implement syncing for the variable ~ammoCount. Preferable to use the trigger action that syncs based on the minimum value.

Best regards,
Nyove