Action RPG Inventory System

[OverRated_AU]

It's brill that your releasing an update soon. I might have to hold off for that as I'm sat trying to figure out your instructions and I get some of it but not enough to be able to just script it all out. For each instruction I have a few questions and you can't waste your time giving me a proper tutorial, especially seeing as your putting the functionality natively into your system anyway soon!

I'm sure it'll make sense once I see it laid out properly and I follow the chain of logic, but to see that logic in my head at the minute, well I'm just not good enough yet!

Oh and sad to hear 4.12.5 won't be supported soon. I understand, but it means I'm gonna have to take the plunge at some point and remove some of the plugins that don't even support 4.13/14 yet, never mind them supporting 4.15 when it comes out anytime soon.
Oh well, your stuff more than makes up for it!
Thx again

You can recompile your plugins by creating a C++ project and moving your plugins to it, then update the project to the engine version you need if some plugins are missed simply turn them back on in the editor and this will recompile then to work hope this helps.

Ok, remove disable if inventory is full, but if dont work increase? Its logic?))))

- Totally revamped Tool Tips to work using built in UMG Tool Tip features. LOL ))) Thank you so much!!)))))

You can create a simple function so when you decrease your inventory size it drops the items in those slots, this function is easy to setup.

[DiziART]

That is by design.
The logic is setup to not allow you to remove slots if there are items currently in them.

You can edit that logic to drop the items if you want. (Maybe I should add that into the update :P)

Ok, remove disable if inventory is full, but if dont work increase? Its logic?))))

- Totally revamped Tool Tips to work using built in UMG Tool Tip features. LOL ))) Thank you so much!!)))))

[dazuk1978]

It doesn't take too long to add in the new feature so perhaps if you are unable to use 4.13+ I can help walk you through it in the near future. But I really do recommend getting prepared to update your project at some point. 4.13/14 are the first decent builds of unreal since over a year ago in my opinion. I held off even working on my project because 4.11/4.12 were such a mess. Now I'm starting everything all over with 4.14. But I'm also a little crazy

If you have plugins that don't support atleast 4.13 by now(It's been out for awhile), you really should get in touch with the developers.

You're a good guy.
Yeah, I am using the Ocean community project and they're currently not updating at all, and there are some other users doing updated 4.13/14 builds but people are getting errors with them (including me) so I've stuck with 4.12.5 even though I desperately want to update.

I'm at this second trying to update to 4.14 support on the ocean project to see if it works again since a new update by Zoc.
If that goes well, I'll probably make the jump as that is the main plugin I wanted anyway.

Do you think 4.14 is a good place to upgrade to then?

[Pirate]

It's brill that your releasing an update soon. I might have to hold off for that as I'm sat trying to figure out your instructions and I get some of it but not enough to be able to just script it all out. For each instruction I have a few questions and you can't waste your time giving me a proper tutorial, especially seeing as your putting the functionality natively into your system anyway soon!

I'm sure it'll make sense once I see it laid out properly and I follow the chain of logic, but to see that logic in my head at the minute, well I'm just not good enough yet!

Oh and sad to hear 4.12.5 won't be supported soon. I understand, but it means I'm gonna have to take the plunge at some point and remove some of the plugins that don't even support 4.13/14 yet, never mind them supporting 4.15 when it comes out anytime soon.
Oh well, your stuff more than makes up for it!
Thx again

It doesn't take too long to add in the new feature so perhaps if you are unable to use 4.13+ I can help walk you through it in the near future. But I really do recommend getting prepared to update your project at some point. 4.13/14 are the first decent builds of unreal since over a year ago in my opinion. I held off even working on my project because 4.11/4.12 were such a mess. Now I'm starting everything all over with 4.14. But I'm also a little crazy

If you have plugins that don't support atleast 4.13 by now(It's been out for awhile), you really should get in touch with the developers.

[dazuk1978]

I am working on updating the steps for that in the v1.7 update post right now . Check back in a bit.

It's brill that your releasing an update soon. I might have to hold off for that as I'm sat trying to figure out your instructions and I get some of it but not enough to be able to just script it all out. For each instruction I have a few questions and you can't waste your time giving me a proper tutorial, especially seeing as your putting the functionality natively into your system anyway soon!

I'm sure it'll make sense once I see it laid out properly and I follow the chain of logic, but to see that logic in my head at the minute, well I'm just not good enough yet!

Oh and sad to hear 4.12.5 won't be supported soon. I understand, but it means I'm gonna have to take the plunge at some point and remove some of the plugins that don't even support 4.13/14 yet, never mind them supporting 4.15 when it comes out anytime soon.
Oh well, your stuff more than makes up for it!
Thx again

[Pirate]

If inventrory is full decreaise slots dont work

That is by design.
The logic is setup to not allow you to remove slots if there are items currently in them.

You can edit that logic to drop the items if you want. (Maybe I should add that into the update :P)

[DiziART]

Yes this is a bug caused by 4.12. I was hoping they would have fixed the engine bug (along with a few other bugs they introduced) by 4.14.

This is the cause and it does say it's fixed for 4.15
https://issues.unrealengine.com/issue/UE-39106

The Item Drag and Drop is not affected by this bug.

I will have to redesign the demo window move logic if epic still hasn't fixed this properly in 4.15.

If inventrory is full, increase and decreaise slots dont work

[Pirate]

Thanks, that's great that it's possible. It sounds potentially beyond my skills just reading that which is a shame. I really hope you get the update out soon as I was hoping to get the ability to damage the enemies in in the next few days! I guess I'll try and decipher what you've written into language that an intellectually deficient person such as me can follow! Fingers crossed

I am working on updating the steps for that in the v1.7 update post right now . Check back in a bit.

[Pirate]

Version 1.7 - Was submitted to Epic on Monday, December 12th
------- Update Notes -------

ARPGIS v1.7 on the launcher will be compatible from 4.13 onward and I have removed the old 4.11-4.12 versions from the marketplace.
There were a lot of deprecated nodes updates for 4.13 and 4.11/4.12 were also relatively bad engine releases.

Send us a support email if you need a 4.12 version and I can provide an ARPGIS v1.6 that you can manually apply the update too.



*New Feature*


- Added logic for spawning a simple Weapon Actor when equipping a MainHand item (or defaults back to current Skeletal Mesh logic if no weapon class specified on the item).

 

Spoiler

Added new Actor Class called Weapon_Actor in InventorySystem/Blueprints/Weapons.

[Weapon_Actor]
- Added a Skeletal Mesh Component called WeaponMesh. (If you drag it onto the root component it will replace it)
- In class defaults set Always Relevant, Replicate Movement and Replicates to True.

Added a Child class of Weapon_Actor called Weapon_Rifle_Assault

[Weapon_Rifle_Assault]
- Assigned the SK_Weapon_Rifle_Assault skeletal mesh asset to the WeaponMesh component.

[InventoryItem Struct]
- Added new Weapon_Actor class variable (Purple) called WeaponActorClass (not a reference variable (Blue))

Now you may need recompile/save a few blueprints to update the InventoryItem structs.
Note: Recompile/Save InventoryComponent before EquipmentInventoryComponent.


[ItemList DataTable]
- In the Weapon_Rifle_Assault properties assigned the Weapon_Rifle_Assault class to the WeaponActorClass.
(You can clear the equipment mesh property or leave it, it's up to you )

[EquipmentCharacter]
- Added a Weapon_Actor reference variable (blue) called MainHandWeaponReference.

[EquipmentInventoryComponent]
- Added a new function called UpdateMainHandWeapon() that has an input with Weapon_Actor Class and a Skeletal Mesh Reference.
- Added logic inside UpdateMainHandWeapon() to clear current mesh/actors and spawn a Weapon Actor and attach to the character if the InventoryItem has a Weapon_Actor specified.
- Added in UpdateEquippedMeshes() the local variables LocalWeaponActorClass and LocalEquipmentMesh and added logic to call new UpdateMainHandWeapon() function when a MainHand Item is Equipped/UnEquipped.


Now when you load the demo you can loot the rifle off of Muppet and when you equip it you will be equipping a spawned weapon Actor to the character.

*Logic Change*


- Totally revamped Tool Tips to work using built in UMG Tool Tip features.

 

Spoiler

Removing the old ToolTip logic from the InventorySystem


[InventoryHUDInterface]
- Removed UI_Get_Inventory_ToolTip() function.
- Removed UI_Get_Container_ToolTip() function.
- Removed UI_Clear_ToolTip() function.

[InventoryPlayerContoller]
- Removed UI_Get_Inventory_ToolTip custom event and logic from Event Graph.
- Removed UI_Get_Container_ToolTip custom event and logic from Event Graph.
- Removed UI_Clear_ToolTip custom event and logic from Event Graph.

[InventoryManagerComponent]
- Removed Server_GetInventoryItemToolTip event and Logic from Event Graph.
- Removed Server_GetContainerItemToolTip event and Logic from Event Graph.
- Removed Client_SetToolTip event and Logic from Event Graph.
- Removed Client_ClearToolTip event and Logic from Event Graph.
- Removed function User Interface/Private/HUD SetToolTip() and ClearToolTip().
- Removed function Manager/Private/Items/GetItemToolTip().
- Removed ItemToToolTip macro.
- Removed Client_ClearToolTip nodes from the DropItem() function.
- Removed Client_ClearToolTip nodes from the CloseInventoryWindow() function.
- Removed Client_ClearToolTip nodes from the CloseContainerWindow() function.
- Removed Client_ClearToolTip nodes from the CloseEquipmentWindow() function.


[InventoryLayout]
- Removed the ToolTip widget element
- Removed the Invalid Interface Message node from the OnDrop() functions DragItem logic

[InventorySlot]
- Removed the Invalid Interface Messages and old logic from the EventGraph
- Removed IsNewHover boolean variable

[ContainerSlot]
- Removed the Invalid Interface Messages and old logic from the EventGraph
- Removed IsNewHover boolean variable



Adding the new better and simpler ToolTips.


[ToolTip]
- Set the ItemToolTipInfo variables Expose on Spawn property to True

[InventorySlot]
- On the [Overlay] element bound a new Tool Tip Widget function called Get_Widget_ToolTip() with the following logic.

[ContainerSlot]
- Set [Horizontal Box] element's Visibility from Self Hit Test Invisible to Visible
- On the [Horizonal Box] element bound a new Tool Tip Widget function called Get_Widget_ToolTip() with the following logic.

[HotBarSlot]
If you want tool tips on the hotbar add the exact same logic as the other 2.
- On the [Overlay] element bound a new Tool Tip Widget function called Get_Widget_ToolTip() with the following logic.


Now you will want to apply the changes in the 1.7.1 ToolTip Hotfix.

*Logic Change*
- Updated Line Trace in InventoryPlayerController->GetUsableActor() to now trace by Channel Visibility instead of by Objects.

 

Spoiler

[InventoryPlayerController]
- In the GetUsableActor() function replaced LineTraceByObject node with LineTraceByChannel and set to Visibility channel.

*Bug Fix* Thank you [MENTION=454654]IlllIl[/MENTION] for the bug report
- When you drop an equipped item the Player's Stats aren't refreshing.

 

Spoiler

[InventoryManagerComponent ]
- Added logic to the end of the DropItem() function to call UpdateEquippedStats() if an item from an EquipmentSlot was dropped.

*Bug Fix*
- Issue with Child Actors of World_Actor that were placed in the world not updating with changes made to the ItemList unless you recompiled them.
By Unreal design, the actor's Construction script only fires when an Actor is placed/moved in the world or the Blueprint is compiled.

 

Spoiler

[World_Actor]
- Created a new function called Server_InitializeItemData()
- Moved the Construction Script logic into the new Server_InitializeItemData() function.
- Called new Server_InitializeItemData() function on the actor Construction and BeginPlay events.

Now the Server will load the data on begin play for items already placed in the world to make sure they are in sync with changes made to the ItemList DataTable.
(Before you had to recompile the Child Blueprints in InventorySystem/Items/Blueprints of the items you updated in the ItemList to refresh the ones placed in the world)

*Bug Fix* - Thank you [MENTION=301883]DiziART[/MENTION] for the bug report
- When passing in an Amount of 0 to the InventoryManagerComponents Client IncreaseInventorySlots() UI function the UI will create phantom UI widget slots.

 

Spoiler

[InventoryManagerComponent]
- Added input validation to the Amount on Server IncreaseInventorySize() and DecreaseInventorySize() events to prevent running logic if no amount is specified.
And just for fun
- Added input validation to the Amount on Client IncreaseInventorySlots() to prevent running logic if no amount is specified.
- Added input validation to the Amount on Client DecreaseInventorySlots() to prevent running logic if no amount is specified.

*Bug Fix* - Thank you [MENTION=91589]Cryptaline[/MENTION] for the bug report
- InventoryManagerComponent->IncreaseInventorySlots() reads from a local variable for the row size instead of the class variable.

 

Spoiler

[InventoryManagerComponent]
- In the IncreaseInventorySlots() function replace the 2 instances of LocalMaxRowSize with the class variable InventorySlotsPerRow.
- In the IncreaseInventorySlots() function delete the Local variable LocalMaxRowSize.

*Engine Bug Workaround Fix*
- When dragging the Container or Inventory window the UMG widget reference breaks causing visual update issues on the client.
This is caused by an engine bug introduced in 4.11 and is not a bug with the ARPGIS logic. - UE-31777 , UE-39106

 

Spoiler

[UI Widgets - Equipment/Inventory/Container]
- add a IsWindowLocked boolean and set it to True by default.
- Added IsWindowLocked logic to the Equipment/Inventory/Container widgets OnMouseButtonDown() functions.
This logic is the same in all three widgets and I would recommend keeping them locked until 4.15 when this bug is hopefully fixed.

*Engine Bug Workaround Fix*
- Mouse Hover states on widgets don't reset after the UMG widget is hidden.
An example of this is when you lose the right mouse button steering after fully looting a container until you mouse over another UMG widget.
This is caused by an engine bug introduced in 4.12 and is not a bug with the ARPGIS logic. - UE-32910

 

Spoiler

[InventoryPlayerController]
- Disabled the IsMouseOverUI logic from the Right Mouse Button Down Input event.

If epic still hasn't fixed this by 4.15 I will revamp the IsMouseOverUI logic.

*Engine Bug Workaround Fix*
- In InventoryHUD the new 4.13 Set Input Mode Game And UI node gives error because no player controller reference is specified.

 

Spoiler

[InventoryHUD]
- Simply remove that Set Input Mode Game and UI node (or plugin the reference it asks for) because it's already set in the PlayerController during the InitializePlayer() function anyways.

*Engine Bug Workaround Fix*
- Set Master Pose node on EquipmentCharacter's MainHand and OffHand Skeletal meshes can cause some imported art to flicker and disappear when attached to sockets.

 

Spoiler

[EquipmentCharacter]
- Simply remove the Set Master Pose node at the end of the logic in the OnRep_MainHandMesh() and OnRep_OffHandMesh() functions.
(It's really not needed on skeletal meshes that get attached to a socket. It's for syncing meshes to the same animation BP so they animate in sync but never caused issues in earlier engine versions)

This update has been submitted to Epic on Monday December 12, 2016 and should be published by Epic this week.

[dazuk1978]

You'll want the InventoryItem to reference the Weapon Blueprint. And then edit the logic in the EquipmentInventoryComponent -> UpdateEquippedMeshes() to spawn this actor instead up updating the mesh (You will want to create a reference to the Actor in the EquipmentCharacter class) and then set the WeaponActorReference on the EquipmentCharacter. Of course if there is already a weapon equipped you will want to destroy that actor when the item is changed.

Then you will need to attach that spawned actor to the character socket just like it does with the MainHandMesh already in the EquipmentCharacter.

I am working on an update that will have this logic to help people who are having trouble bridging the gap between InventoryItem and their weapon system.

Thanks, that's great that it's possible. It sounds potentially beyond my skills just reading that which is a shame. I really hope you get the update out soon as I was hoping to get the ability to damage the enemies in in the next few days! I guess I'll try and decipher what you've written into language that an intellectually deficient person such as me can follow! Fingers crossed

[Pirate]

[MENTION=39476]Pirate[/MENTION] : Thx mate, I'll try all that out later!

Can you answer me a really silly question though please?

I am trying to do a melee damage system (I might do a simple one myself, or use Rama's melee plugin) but my initial attempt didn't work. I put the logic into my weapon Blueprint (it's used in your inventory system) and it did an overlap check for enemies and I fire a few debug strings but none of them get triggered.
Onbviously the blueprint references the static mesh, but when the weapon gets equipped, does it use the skeletal mesh version of it and therefore the overlap/collision checks I'm doing won't fire? Just a bit confused on where to put the logic, as for me it makes sense to have it on the individual weapons so I can customise the base damage on a per-weapon basis (or reference your in-built damage value, I assume?).

Sorry, I know this goes beyond what you've provided for us, but a bit of clarification on what happens to the item when I equip it etc might help me figure out where to put the logic?
From looking online, most put it on the player character and reference a melee capsule of some kind, but I'd prefer to use the actual weapon's collision/physics to calculate the hit...

Thx for any help

You'll want the InventoryItem to reference the Weapon Blueprint. And then edit the logic in the EquipmentInventoryComponent -> UpdateEquippedMeshes() to spawn this actor instead up updating the mesh (You will want to create a reference to the Actor in the EquipmentCharacter class) and then set the WeaponActorReference on the EquipmentCharacter. Of course if there is already a weapon equipped you will want to destroy that actor when the item is changed.

Then you will need to attach that spawned actor to the character socket just like it does with the MainHandMesh already in the EquipmentCharacter.

I am working on an update that will have this logic to help people who are having trouble bridging the gap between InventoryItem and their weapon system.

[Pirate]

Hi, i have some problems with player loot (multiplayer) i don't know solve, can someone help me?

- When i try loot another player itens don't show!
- loot hud (text when you put the mouse over the item) don't show.

Help!!

You will need to provide more information about how you setup the players to be lootable. Did you implement the interfaces?

[Pirate]

I find new bug. If inventory window relocate - increase and decrease slots not work...

Yes this is a bug caused by 4.12. I was hoping they would have fixed the engine bug (along with a few other bugs they introduced) by 4.14.

This is the cause and it does say it's fixed for 4.15
https://issues.unrealengine.com/issue/UE-39106

The Item Drag and Drop is not affected by this bug.

I will have to redesign the demo window move logic if epic still hasn't fixed this properly in 4.15.

[DiziART]

I find new bug. If inventory window relocate - increase and decrease slots not work...

[ArTDsL]

Hi, i have some problems with player loot (multiplayer) i don't know solve, can someone help me?

- When i try loot another player itens don't show!
- loot hud (text when you put the mouse over the item) don't show.

Help!!