U2.PowerUpPickup

class PowerUpPickup extends Pickup
	abstract;

#exec OBJ LOAD FILE=..\Sounds\U2A.uax

var() int       EnergyUnits;      // A pickup or station's number of EnergyUnits
var() int       HealthUnits;      // A pickup or station's number of HealthUnits
var() int       TransferRate;     // The rate at which the units are passed to the PowerSuit or Player
							      // in terms of x units per second.
var() bool      bIsPickup;        // True if object is a pickup
var() bool      bIsStation;       // True if object is a station
var() string    Description;	  // Popup description of this PowerUp
var() Mesh      PickupMesh;       // A pickup's mesh
var() Mesh      StationMesh;      // A station's mesh
var() Texture   PickupTexture;    // A pickup's texture

//-----------------------------------------------------------------------------
// If the bot does not have a PowerSuit he will ignore all PowerUps, otherwise,
// set desire to the difference between the maxunits and current units.

function float BotDesireability(Pawn P)
{
    local float		desire;
    local int		HealMax;
	local int		Power;
	local int		MaxPower;
	local PowerSuit	PS;

	if( HealthUnits > 0 )
	{
		HealMax = P.default.Health;
		desire = Min( HealthUnits, HealMax - P.Health );
	}
	else
	{
		// expensive call - don't do this unless needed
		PS = PowerSuit(P.FindInventoryType( class'PowerSuit' ));

		if( PS != None )
		{
			if( EnergyUnits > 0 )
			{
				MaxPower = int(PS.MaxPower);
				Power = int(PS.Power);
				desire = Min( EnergyUnits, MaxPower - Power );
			}
		}
		else
		{
			desire = -1;
		}
	}	

	// (mdf): Answer: in general the returned desireability should be between 0
	// and 1. Afaict from looking at the engine code you can return larger values 
	// if you want but you need to make sure that you set MaxDesireability to match
	// the largest value that you might return or this code may never get called.
	// But, with large values, bots will completely ignore closer inventory and
	// run all the way across a level to get to an item so its probably best to
	// limit these to 0..1 in general.
	//
	// For now I set MaxDesireability to 1 (wag) which might do the trick. This 
	// isn't an issue at this point since dm is dead -- ideally we'd spend some
	// time trying to determine a MaxDesireability that works.
	
	// Scale health depending on how badly it is needed.
    if( P.Health < 45 )
	{
		desire = FMin( 0.03 * desire, 2.2 );
	}
    else
    {
		if( desire > 6 )
		{
			desire = FMax( desire, 25 );
		}
		else
		{
			desire = FMin( 0.017 * desire, 2.0 ); 
		}
    }

	return desire;
}

//-----------------------------------------------------------------------------

function AnnouncePickup( Pawn Receiver )
{
	if( Receiver != None && Receiver.IsRealPlayer() )
		class'UIConsole'.static.BroadcastStatusMessage( Self, PickupMessage );
	Super.AnnouncePickup( Receiver );
}

//-----------------------------------------------------------------------------

function inventory SpawnCopy( pawn Other )
{
	local inventory Copy;

	if ( Inventory != None )
	{
		Copy = Inventory;
		Inventory = None;
	}
	else
		Copy = spawn(InventoryType,Other,,,rot(0,0,0));

	Copy.TransferProperties( self );
	Copy.GiveTo( Other );

	return Copy;
}

//-----------------------------------------------------------------------------

auto state Pickup
{
	function bool ValidTouch( actor Other )
	{
		if( Pawn(Other) == None || PowerSuit(class'UtilGame'.static.GetInventoryItem( Pawn(Other), class'PowerSuit' )) == None || bIsStation == true )
		{
			// You should be able to get health whether you have a PowerSuit or not
			if( HealthUnits > 0 && !bIsStation )
			{
				return Super.ValidTouch( Other );
			}
			else
				return false;
		}
		return Super.ValidTouch( Other );
	}
}

//-----------------------------------------------------------------------------

defaultproperties
{
	MaxDesireability=1.000000
	AmbientGlow=64
     UseReticleOnEvents(0)="UseReticleText"
     UseReticleOnEvents(1)="UseReticleCorners"
     UseReticleOnEvents(2)="UseReticleTopBars"
     ProximityReticleOnEvents(0)="ProximityReticleCorners"
     ProximityReticleOnEvents(1)="ProximityReticleTopBars"
}