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How to handle RMB and LMB clicks in c++

I need to branch based on if the RMB or LMB is clicked. What is the best way to do this in cpp. I have actions set up for rmb and lmb. One way I thought, would be to write 2 functions for each action that sets a private "is clicked" variable to true or false based on press or release. but that seems like a hassle. I notice that blueprint has a right mouse and left mouse pressed boolean, I was wondering if there is something similar in c++.

Thanks guys, let me know what the best way of handling this is.

Product Version: UE 4.14
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asked Feb 15 '17 at 06:19 AM in C++ Programming

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Kekeoki
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Hi Kekeoki,

You can check if a key is pressed from UPlayerInput::IsPressed(FKey InKey) which returns a boolean.

Hope that helps. Cheers,

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answered Feb 15 '17 at 09:33 AM

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project.gheist
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Hi Kekeoki.

Depending if you have a character or simply a player controller at hand, you want to make sure that

  • an input component is set

  • that you bind to it IE_Pressed and IE_Released actions to a function delegate.

  • that you also set up your input commands in your project settings.

The First person shooter tutorial on the Unreal wiki (https://wiki.unrealengine.com/First_Person_Shooter_C%2B%2B_Tutorial) will provide valuable information, especially the part on Adding Projectiles and Shooting which details how to handle LMB (you can infer RMB handling from it).

If you only have a player controller, it's a bit more tricky, but not too difficult. I shared my struggles with the issue at the end of this post (https://forums.unrealengine.com/showthread.php?109214-Player-controller-input-handling&p=712760&viewfull=1#post712760). Read the Wiki article and then bind your delegates in the same manner after registering the input component.

Cheers.

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answered Jul 06 '17 at 03:25 AM

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DrHobo
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