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@WahlbeckUEFN
Created May 10, 2023 00:16
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Code for boss fight and health bar in UEFN and Verse
using { /Fortnite.com/Devices }
using { /Fortnite.com/Characters }
using { /Verse.org/Simulation }
using { /Verse.org/Random }
using { /UnrealEngine.com/Temporary/Diagnostics }
using { /UnrealEngine.com/Temporary/UI }
using { /Fortnite.com/UI }
using { /UnrealEngine.com/Temporary/SpatialMath}
using { /Verse.org/Colors }
using { /Verse.org/Colors/NamedColors }
health_bar := class():
var iTotalHP<private> : float = 1000.0
var iCurrentHP<private> : float = 1000.0
var iBossName<private> : string = "Bulgna The Ugly"
BossBarColorBase<private> : color_block = color_block{
DefaultColor := MakeColorFromHex("000000")
DefaultDesiredSize := vector2{X:= 1200.0, Y := 40.0}}
var BossBarColorTop<private> : color_block = color_block{}
var Overlay<private> : overlay = overlay{}
HPBarTitleTextBlock<private> : text_block = text_block{DefaultTextColor := MakeColorFromHex("FFFFFF")}
HPTitleText<private><localizes>(HPText : string) : message = "{HPText}"
Init(BossName : string, BossTotalHP: float):void=
set iBossName = BossName
set iTotalHP = BossTotalHP
set iCurrentHP = BossTotalHP
HPBarTitleTextBlock.SetText(HPTitleText("{iBossName}: {iCurrentHP}/{iTotalHP}"))
TakeDamage(DamageAmount : float):void=
set iCurrentHP -= DamageAmount
if (iCurrentHP < 0.0):
set iCurrentHP = 0.0
HealthPercentage := iCurrentHP / iTotalHP
BarSize := BossBarColorBase.GetDesiredSize()
NewHealthBarWidth := BarSize.X * HealthPercentage
if (Current := Int[iCurrentHP], Total := Int[iTotalHP]):
HPBarTitleTextBlock.SetText(HPTitleText("{iBossName}: {Current}/{Total}"))
UpdateHealthBar(NewHealthBarWidth)
Heal(HealAmount : float):void=
block:
ShowUIForPlayer(Player : player):void=
if (PlayerUI := GetPlayerUI[Player]):
PlayerUI.AddWidget(CreateUI())
ShowUIToAllPlayers():void=
block:
MyButton : button_device = button_device{}
UpdateHealthBar(NewWidth : float):void=
Overlay.RemoveWidget(HPBarTitleTextBlock)
Overlay.RemoveWidget(BossBarColorTop)
set BossBarColorTop = CreateTopHealthBar(NewWidth)
Overlay.AddWidget(CreateOverlaySlot(BossBarColorTop, horizontal_alignment.Left))
Overlay.AddWidget(CreateOverlaySlot(HPBarTitleTextBlock,horizontal_alignment.Center))
CreateOverlaySlot<private>(TheWidget : widget, HAlignment : horizontal_alignment):overlay_slot=
overlay_slot:
Widget := TheWidget
HorizontalAlignment := HAlignment
CreateTopHealthBar<private>(Width: float):color_block=
ColorBlock := color_block{
DefaultColor := MakeColorFromHex("ff2a00")
DefaultDesiredSize := vector2{X:= Width, Y := 40.0}}
set BossBarColorTop = ColorBlock
CreateOverlay<private>() : overlay=
TheOverlay := overlay:
Slots := array:
overlay_slot:
Widget := BossBarColorBase
overlay_slot:
Widget := CreateTopHealthBar(1200.0)
overlay_slot:
Widget := HPBarTitleTextBlock
set Overlay = TheOverlay
CreateUI<private>() : canvas=
TheCanvas : canvas = canvas:
Slots := array:
canvas_slot:
Anchors := anchors{Minimum := vector2{X := 0.5, Y := 0.9}, Maximum := vector2{X := 0.5, Y := 0.9}}
Offsets := margin{Top := 0.0, Left := 0.0, Right := 0.0, Bottom := 100.0}
Alignment := vector2{X := 0.5, Y := 1.0}
Widget := stack_box:
Orientation := orientation.Vertical
Slots := array:
stack_box_slot:
Widget := CreateOverlay()
return TheCanvas
boss_fight := class(creative_device):
@editable SmashAtackCinema : cinematic_sequence_device = cinematic_sequence_device{}
@editable ComboAttackCinema : cinematic_sequence_device = cinematic_sequence_device{}
@editable WalkCinema : cinematic_sequence_device = cinematic_sequence_device{}
@editable BossManip : prop_manipulator_device = prop_manipulator_device{}
@editable Boss : creative_prop = creative_prop{}
BossHPBar : health_bar = health_bar{}
OnBegin<override>()<suspends>:void=
AllPlayers := GetPlayspace().GetPlayers()
BossHPBar.Init("Aknar The Terrible", 1000.0)
if (Player := AllPlayers[0]):
BossHPBar.ShowUIForPlayer(Player)
BossManip.DamagedEvent.Subscribe(OnBossDamaged)
loop:
RotateTowardPlayer()
MoveAnimation()
PlayRandomAttack()
PlayRandomAttack()<suspends>:void=
if (GetRandomInt(0,1) = 0):
SmashAnimation()
else:
ComboAttack()
RotateTowardPlayer()
ComboAttack()
OnBossDamaged(Agent : agent):void=
BossHPBar.TakeDamage(10.0)
SmashAnimation()<suspends>:void=
SmashAtackCinema.Play()
Sleep(5.0)
ComboAttack()<suspends>:void=
ComboAttackCinema.Play()
Sleep(6.27)
MoveAnimation()<suspends>:void=
WalkCinema.Play()
AllPlayers := GetPlayspace().GetPlayers()
if (Player := AllPlayers[0], Agent := agent[Player], Fort := Agent.GetFortCharacter[]):
PlayerTran := Fort.GetTransform()
Boss.MoveTo(PlayerTran.Translation, Boss.GetTransform().Rotation, 4.0)
RotateTowardPlayer()<suspends>:void=
AllPlayers := GetPlayspace().GetPlayers()
if (Player := AllPlayers[0], Agent := agent[Player], Fort := Agent.GetFortCharacter[]):
PropLocation := Boss.GetTransform().Translation
PlayerLocation := Fort.GetTransform().Translation
if (LookDirection := (PlayerLocation - PropLocation).MakeUnitVector[]):
Yaw := RadiansToDegrees(ArcTan(LookDirection.Y, LookDirection.X)) - 90.0
Pitch := RadiansToDegrees(ArcTan(LookDirection.Z, Sqrt((LookDirection.X * LookDirection.X) + (LookDirection.Y * LookDirection.Y))))
Roll := 0.0
NewRotation := MakeRotationFromYawPitchRollDegrees(Yaw, Pitch, Roll)
Boss.MoveTo(Boss.GetTransform().Translation, NewRotation, 2.0)
@6matthias
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6matthias commented Sep 4, 2023

Wonderful looking boss fight health bar, very simple and straight forward, code is very clean and it doesn't take much to understand and edit yourself.
That said, this does feel like it's missing a remove UI for player function

@LionGet
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LionGet commented Oct 23, 2023

@6matthias
If you just take the first part of the UpdateHealthBar() function it removes the existing widgets, you can probably just make a new function that only contains that portion.
RemoveHealthBar():void=
Overlay.RemoveWidget(HPBarTitleTextBlock)
Overlay.RemoveWidget(BossBarColorTop)

@Vitashka2001
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Does anyone know how to display the UI for all players or can recommend a resource where I can learn how to do this?

@Diablo9818
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This code is realy great, can you please give me advice how to remove UI when you kill the boss, I can remove text_block, but I can't remove Color Blocks. Can anyone please help me with this?
image

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