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global function ClDroppedWeaponFlyout_Init

global function ClientCodeCallback_BodyGroupChanged

global function ClientCodeCallback_UseEntGainedFocus
global function ClientCodeCallback_UseEntLostFocus

global function AddCallback_OnPetTitanChanged
global function ClientCodeCallback_OnPetTitanModeChanged
global function AddCallback_OnPetTitanModeChanged
global function ClientCodeCallback_OnPetTitanChanged

global function DestroyPickupFlyout
global function HidePickupFlyout
global function ShowPickupFlyout
global function IsCurrentlyFocusedWeapon
global function IsPickupFlyoutValid

#if HAS_WEAPON_PICKUP_HIGHLIGHT
global function ServerCallback_RefreshWeaponHighlights
#endif

enum eFlyoutType
{
	STANDARD_WEAPON
	BT_LOADOUT_PICKUP
}

struct
{
	var flyoutRUI
	var lastWeaponRuiSet
	int flyoutType
	entity focusedEnt
	table<string, asset> modImages
} file

void function ClDroppedWeaponFlyout_Init()
{
	RegisterSignal( "PetTitanChanged" )
	RegisterSignal( "PetTitanModeChanged" )

	var dataTable = GetDataTable( $"datatable/pilot_weapon_mods_common.rpak" )
	int numRows = GetDatatableRowCount( dataTable )

	for ( int i = 0; i < numRows; i++ )
	{
		string modRef = GetDataTableString( dataTable, i, PILOT_WEAPON_MOD_COMMON_COLUMN )
		asset modImage = GetDataTableAsset( dataTable, i, PILOT_WEAPON_MOD_COMMON_IMAGE_COLUMN )
		file.modImages[ modRef ] <- modImage
	}

	AddCinematicEventFlagChangedCallback( CE_FLAG_HIDE_MAIN_HUD, WeaponPickupFlyout_UpdateVisibility )

	#if HAS_WEAPON_PICKUP_HIGHLIGHT
	AddCreateCallback( "weaponx", ClWeaponCreationCallback )
	#endif
}

void function ClientCodeCallback_BodyGroupChanged( entity ent, int bodyGroupIndex, int oldState, int newState )
{
//	PrintFunc( "entity " + ent + " index " + bodyGroupIndex + "newstate " + newState )

	if ( IsSpectre( ent ) || IsStalker( ent ) )
	{
		if ( bodyGroupIndex == ent.FindBodyGroup( "removableHead" ) )
		{
			ModelFX_DisableGroup( ent, "foe_lights" )
			ModelFX_DisableGroup( ent, "friend_lights" )
		}
	}
}

void function ClientCodeCallback_UseEntGainedFocus( entity ent )
{
	foreach ( callbackFunc in clGlobal.onUseEntGainFocusCallbacks )
	{
		callbackFunc( ent )
	}

	DestroyPickupFlyout()

	int neededType = eFlyoutType.STANDARD_WEAPON

	if ( ent.GetClassName() == "weaponx" )
	{
		#if SP
		int loadoutIndex = GetSPTitanLoadoutIndexForWeapon( ent.GetWeaponClassName() )
		neededType = (loadoutIndex >= 0) ? eFlyoutType.BT_LOADOUT_PICKUP : eFlyoutType.STANDARD_WEAPON
		#endif

		if ( neededType == eFlyoutType.STANDARD_WEAPON )
		{
			if ( (file.flyoutRUI == null) || file.flyoutType != neededType )
			{
				DestroyPickupFlyout()
				file.flyoutRUI = RuiCreate( $"ui/dropped_weapon_flyout.rpak", clGlobal.topoFullScreen, RUI_DRAW_HUD, 0 )
				file.flyoutType = neededType
			}

			int modNum = 1
			array<string> weaponMods = ent.GetMods()
			foreach ( mod in weaponMods )
			{
				if ( modNum >= 5 ) // setting mod5 in the rui crashes client
					break
					
				if ( mod in file.modImages )
					RuiSetImage( file.flyoutRUI, "mod" + modNum++, file.modImages[ mod ] )
			}

			RuiSetGameTime( file.flyoutRUI, "startTime", Time() )
			RuiTrackFloat3( file.flyoutRUI, "pos", ent, RUI_TRACK_ABSORIGIN_FOLLOW )
			RuiSetString( file.flyoutRUI, "titleText", expect string( ent.GetWeaponInfoFileKeyField( "shortprintname" ) ) )
			RuiSetString( file.flyoutRUI, "descriptionText", expect string( ent.GetWeaponInfoFileKeyField( "description" ) ) )

			RuiSetBool( file.flyoutRUI, "isOffhandWeapon", ent.IsWeaponOffhand() )
			RuiSetImage( file.flyoutRUI, "icon", ent.GetWeaponInfoFileKeyFieldAsset( "hud_icon" ) )
			RuiSetFloat( file.flyoutRUI, "worldOffsetY", GetLocalViewPlayer().IsTitan() ? 98.0 : 32.0 )
			RuiSetResolutionToScreenSize( file.flyoutRUI )

			if ( ent.GetWeaponSettingBool( eWeaponVar.is_burn_mod ) )
				RuiSetFloat3( file.flyoutRUI, "color", BURN_CARD_WEAPON_HUD_COLOR_VECTOR )

			var rui = ClWeaponStatus_GetWeaponHudRui( GetLocalViewPlayer(), ent )
			if ( rui != null )
			{
				RuiSetBool( rui, "isHighlighted", true )
				file.lastWeaponRuiSet = rui
			}
		}
		// #if SP
		// else if ( neededType == eFlyoutType.BT_LOADOUT_PICKUP )
		// {
		// 	// The first one is picked up automatically an dhandled by a different custom system.
		// 	if ( ent.GetWeaponClassName() == SP_FIRST_TITAN_LOADOUT_KIT )
		// 		return

		// 	if ( (file.flyoutRUI == null) || file.flyoutType != neededType )
		// 	{
		// 		DestroyPickupFlyout()
		// 		file.flyoutRUI = CreateCockpitRui( $"ui/dropped_weapon_bt_loadout_flyout.rpak", 0 )
		// 		file.flyoutType = neededType
		// 	}

		// 	RuiSetGameTime( file.flyoutRUI, "startTime", Time() )
		// 	RuiSetString( file.flyoutRUI, "titleText", GetSPTitanLoadoutForIndex_MenuItem( loadoutIndex ) )
		// 	RuiSetImage( file.flyoutRUI, "icon", ent.GetWeaponInfoFileKeyFieldAsset( "hud_icon" ) )
		// }
		// #endif
	}

	file.focusedEnt = ent
	if ( GetWeaponFlyoutAliveTime() < 0.5 && IsWeaponFlyoutVisible() )
	{
		HidePickupFlyout( 2.0 )
		SetWeaponFlyoutRemainingTime( 2.0 )
	}
	else
	{
		DestroyWeaponFlyout()
	}

#if HAS_AMMO_FULL_FLYOUT
	if ( IsAmmoFullWeapon( ent ) )
		HideAmmoFullFlyout()
#endif

#if HAS_WEAPON_PICKUP_HIGHLIGHT
	ManageHighlightEntity( ent )
#endif

	#if SP
	ScriptCallback_UpdateOnscreenHint()
	#endif
}

void function ClientCodeCallback_UseEntLostFocus( entity ent )
{
	foreach ( callbackFunc in clGlobal.onUseEntLoseFocusCallbacks )
	{
		callbackFunc( ent )
	}

	DestroyPickupFlyout()

	if ( file.lastWeaponRuiSet != null )
	{
		RuiSetBool( file.lastWeaponRuiSet, "isHighlighted", false )
		file.lastWeaponRuiSet = null
	}

	if ( file.focusedEnt == ent )
	{
		file.focusedEnt = null
	}

#if HAS_WEAPON_PICKUP_HIGHLIGHT
	if ( IsValid( ent ) )
		ManageHighlightEntity( ent )
#endif
}

bool function IsPickupFlyoutValid()
{
	return ( file.flyoutRUI != null )
}

bool function IsCurrentlyFocusedWeapon( entity ent )
{
	return file.focusedEnt == ent
}

void function DestroyPickupFlyout()
{
	if ( file.flyoutRUI == null )
		return

	RuiDestroy( file.flyoutRUI )
	file.flyoutRUI = null

	#if SP
	ScriptCallback_UpdateOnscreenHint()
	#endif
}

void function HidePickupFlyout( float hideDuration )
{
	if ( file.flyoutRUI == null )
		return

	RuiSetFloat( file.flyoutRUI, "hideDuration", hideDuration )
	RuiSetGameTime( file.flyoutRUI, "hideStartTime", Time() )
}

void function ShowPickupFlyout()
{
	if ( file.flyoutRUI == null )
		return

	RuiSetFloat( file.flyoutRUI, "hideDuration", 0.0 )

	#if SP
	ScriptCallback_UpdateOnscreenHint()
	#endif
}

void function WeaponPickupFlyout_UpdateVisibility( entity player )
{
	if ( file.flyoutRUI == null )
		return

	int ceFlags = player.GetCinematicEventFlags()
	bool hideHud = ( ceFlags & CE_FLAG_HIDE_MAIN_HUD ) > 0
	RuiSetBool( file.flyoutRUI, "inCinematic", hideHud )
}

#if HAS_WEAPON_PICKUP_HIGHLIGHT
void function ServerCallback_RefreshWeaponHighlights( int eHandle )
{
	entity weapon = GetEntityFromEncodedEHandle( eHandle )
	if ( weapon != null )
		ManageHighlightEntity( weapon )
}

void function ClWeaponCreationCallback( entity weapon )
{

}
#endif


void function AddCallback_OnPetTitanChanged( void functionref( entity ) callbackFunc )
{
	clGlobal.onPetTitanChangedCallbacks.append( callbackFunc )
}

void function ClientCodeCallback_OnPetTitanChanged( entity player )
{
	if ( !IsValid( player ) || player != GetLocalViewPlayer() )
		return

	if ( !IsMenuLevel() )
		thread PetTitanChanged( player )

	player.Signal( "PetTitanChanged" )

	// Added via AddCallback_OnPetTitanModeChanged
	foreach ( callbackFunc in clGlobal.onPetTitanChangedCallbacks )
	{
		callbackFunc( player )
	}
}

void function ClientCodeCallback_OnPetTitanModeChanged( entity player )
{
	if ( !IsValid( player ) || player != GetLocalViewPlayer() )
		return

	if ( !IsValid( player.GetPetTitan() ) ) // should be an assert...
		return

	player.Signal( "PetTitanModeChanged" )

	// Added via AddCallback_OnPetTitanModeChanged
	foreach ( callbackFunc in clGlobal.onPetTitanModeChangedCallbacks )
	{
		callbackFunc( player )
	}
}

void function AddCallback_OnPetTitanModeChanged( void functionref( entity ) callbackFunc )
{
	clGlobal.onPetTitanModeChangedCallbacks.append( callbackFunc )
}