Migrating From February to March

Video Version

Subject: Migrating From February to March
Skill Level: Beginner
Run-Time: 30 Minutes
Author: Michael Allar
Notes: Migrating our code base from Feb. to March.

Streaming:     720×480 1920×1080

Download:     Low-Res (117MB) Hi-Res (167MB)

Written Version

Subject: Migrating From February to March
Skill Level: Beginner
Author: Michael Allar
Notes: Migrating our code base from Feb. to March.

See video for an in-depth explanation. Sorry about the indentation, it seems like my indentation will not survive copy paste… D: I will create a written tutorial soon.

UDKGame

/*******************************************************************************
 UDKGame

 Creation date: 14/01/2010 13:55
 Copyright (c) 2010, Michael Allar

*******************************************************************************/

class UDKGame extends GameInfo
 config(UDKGame);

static event class<GameInfo> SetGameType(string MapName, string Options, string Portal)
{
 local string ThisMapPrefix;
 local int i,pos;
 local class<GameInfo> NewGameType;

 `log("We are setting our game type.");
 if (Left(MapName, 10) ~= "HTFrontEnd")
 {
 return class'UDKGame';
 }
 `log("We are not HTFrontEnd");

 // strip the UEDPIE_ from the filename, if it exists (meaning this is a Play in Editor game)
 if (Left(MapName, 6) ~= "UEDPIE")
 {
 MapName = Right(MapName, Len(MapName) - 6);
 }
 else if ( Left(MapName, 5) ~= "UEDPC" )
 {
 MapName = Right(MapName, Len(MapName) - 5);
 }
 else if (Left(MapName, 6) ~= "UEDPS3")
 {
 MapName = Right(MapName, Len(MapName) - 6);
 }
 else if (Left(MapName, 6) ~= "UED360")
 {
 MapName = Right(MapName, Len(MapName) - 6);
 }

 // replace self with appropriate gametype if no game specified
 pos = InStr(MapName,"-");
 ThisMapPrefix = left(MapName,pos);

 // change game type
 for ( i=0; i<Default.DefaultMapPrefixes.Length; i++ )
 {
 `log("Going through a iteration of DefaultMapPrefixes");
 if ( Default.DefaultMapPrefixes[i].Prefix ~= ThisMapPrefix )
 {
 NewGameType = class<GameInfo>(DynamicLoadObject(Default.DefaultMapPrefixes[i].GameType,class'Class'));
 if ( NewGameType != None )
 {
 return NewGameType;
 }
 }
 }

 return class'UDKGame';
}

defaultproperties
{
 DefaultPawnClass=class'UDKGame.HTPawn'
 PlayerControllerClass=class'UDKGame.HTPlayerController'

 HUDType=class'UDKGame.HTHUD'
}

HTWeapon

/*******************************************************************************
 HTWeapon

 Creation date: 08/03/2010 06:21
 Copyright (c) 2010, Allar

*******************************************************************************/

class HTWeapon extends UDKWeapon;

/** Max ammo count */
var int MaxAmmoCount;

/** Holds the amount of ammo used for a given shot */
var array<int> ShotCost;

/** Offset from view center */
var(FirstPerson) vector    PlayerViewOffset;

simulated event ReplicatedEvent(name VarName)
{
 if ( VarName == 'AmmoCount' )
 {
 if ( !HasAnyAmmo() )
 {
 WeaponEmpty();
 }
 }
 else
 {
 Super.ReplicatedEvent(VarName);
 }
}

simulated function int GetAmmoCount()
{
 return AmmoCount;
}
 /*
 * Consumes some of the ammo
 */
function ConsumeAmmo( byte FireModeNum )
{
 // Subtract the Ammo
 AddAmmo(-ShotCost[FireModeNum]);
}

/**
 * This function is used to add ammo back to a weapon.  It's called from the Inventory Manager
 */
function int AddAmmo( int Amount )
{
 AmmoCount = Clamp(AmmoCount + Amount,0,MaxAmmoCount);
 return AmmoCount;
}

/**
 * Returns true if the ammo is maxed out
 */
simulated function bool AmmoMaxed(int mode)
{
 return (AmmoCount >= MaxAmmoCount);
}

/**
 * This function checks to see if the weapon has any ammo available for a given fire mode.
 *
 * @param    FireModeNum        - The Fire Mode to Test For
 * @param    Amount            - [Optional] Check to see if this amount is available.  If 0 it will default to checking
 *                              for the ShotCost
 */
simulated function bool HasAmmo( byte FireModeNum, optional int Amount )
{
 if (Amount==0)
 return (AmmoCount >= ShotCost[FireModeNum]);
 else
 return ( AmmoCount >= Amount );
}

/**
 * returns true if this weapon has any ammo
 */
simulated function bool HasAnyAmmo()
{
 return ( ( AmmoCount > 0 ) || (ShotCost[0]==0 && ShotCost[1]==0) );
}

/**
 * This function retuns how much of the clip is empty.
 */
simulated function float DesireAmmo(bool bDetour)
{
 return (1.f - float(AmmoCount)/MaxAmmoCount);
}

/**
 * Returns true if the current ammo count is less than the default ammo count
 */
simulated function bool NeedAmmo()
{
 return ( AmmoCount < Default.AmmoCount );
}

/**
 * Cheat Help function the loads out the weapon
 *
 * @param     bUseWeaponMax     - [Optional] If true, this function will load out the weapon
 *                              with the actual maximum, not 999
 */
simulated function Loaded(optional bool bUseWeaponMax)
{
 if (bUseWeaponMax)
 AmmoCount = MaxAmmoCount;
 else
 AmmoCount = 999;
}

/**
 * Called when the weapon runs out of ammo during firing
 */
simulated function WeaponEmpty()
{
 // If we were firing, stop
 if ( IsFiring() )
 {
 GotoState('Active');
 }

 if ( Instigator != none && Instigator.IsLocallyControlled() )
 {
 Instigator.InvManager.SwitchToBestWeapon( true );
 }
}

/*********************************************************************************************
 * Ammunition / Inventory
 *********************************************************************************************/

function PrintScreenDebug(string debugText)
{
 local PlayerController PC;
 PC = PlayerController(Pawn(Owner).Controller);
 if (PC != None)
 PC.ClientMessage("HTWeapon: " $ debugText);
}

simulated function AttachWeaponTo( SkeletalMeshComponent MeshCpnt, optional Name SocketName )
{
 local HTPawn HTP;

 HTP = HTPawn(Instigator);
 PrintScreenDebug("Attaching Weapon");
 // Attach 1st Person Muzzle Flashes, etc,
 if ( Instigator.IsFirstPerson() )
 {
 AttachComponent(Mesh);
 EnsureWeaponOverlayComponentLast();
 SetHidden(False);
 Mesh.SetLightEnvironment(HTP.LightEnvironment);
 PrintScreenDebug("First Person Weapon Attached");
 }
 else
 {
 SetHidden(True);
 if (HTP != None)
 {
 Mesh.SetLightEnvironment(HTP.LightEnvironment);
 }
 }
 //SetSkin(HTPawn(Instigator).ReplicatedBodyMaterial);
}

simulated event SetPosition(UDKPawn Holder)
{
 local vector DrawOffset, ViewOffset, FinalLocation;
 local rotator NewRotation, FinalRotation, SpecRotation;
 local PlayerController PC;
 local vector2D ViewportSize;
 local bool bIsWideScreen;
 local vector SpecViewLoc;

 if ( !Holder.IsFirstPerson() )
 return;

 Mesh.SetHidden(False);

 foreach LocalPlayerControllers(class'PlayerController', PC)
 {
 LocalPlayer(PC.Player).ViewportClient.GetViewportSize(ViewportSize);
 break;
 }
 bIsWideScreen = (ViewportSize.Y > 0.f) && (ViewportSize.X/ViewportSize.Y > 1.7);

 Mesh.SetScale3D(default.Mesh.Scale3D);
 Mesh.SetRotation(default.Mesh.Rotation);

 ViewOffset = PlayerViewOffset;

 // Calculate the draw offset
 if ( Holder.Controller == None )
 {

 if ( DemoRecSpectator(PC) != None )
 {
 PC.GetPlayerViewPoint(SpecViewLoc, SpecRotation);
 DrawOffset = ViewOffset >> SpecRotation;
 //DrawOffset += UTPawn(Holder).WeaponBob(BobDamping, JumpDamping);
 FinalLocation = SpecViewLoc + DrawOffset;
 SetLocation(FinalLocation);
 SetBase(Holder);

 // Add some rotation leading
 //SpecRotation.Yaw = LagRot(SpecRotation.Yaw & 65535, LastRotation.Yaw & 65535, MaxYawLag, 0);
 //SpecRotation.Pitch = LagRot(SpecRotation.Pitch & 65535, LastRotation.Pitch & 65535, MaxPitchLag, 1);
 //LastRotUpdate = WorldInfo.TimeSeconds;
 //LastRotation = SpecRotation;

 if ( bIsWideScreen )
 {
 //SpecRotation += WidescreenRotationOffset;
 }
 SetRotation(SpecRotation);
 return;
 }
 else
 {
 DrawOffset = (ViewOffset >> Holder.GetBaseAimRotation()) + HTPawn(Holder).GetEyeHeight() * vect(0,0,1);
 PrintScreenDebug("Setting DrawOffset to Holder Info");
 }
 }
 else
 {

 DrawOffset.Z = HTPawn(Holder).GetEyeHeight();
 //DrawOffset += HTPawn(Holder).WeaponBob(BobDamping, JumpDamping);

 if ( HTPlayerController(Holder.Controller) != None )
 {
 DrawOffset += HTPlayerController(Holder.Controller).ShakeOffset >> Holder.Controller.Rotation;
 }

 DrawOffset = DrawOffset + ( ViewOffset >> Holder.Controller.Rotation );
 }

 // Adjust it in the world
 FinalLocation = Holder.Location + DrawOffset;
 SetLocation(FinalLocation);
 SetBase(Holder);

 NewRotation = (Holder.Controller == None) ? Holder.GetBaseAimRotation() : Holder.Controller.Rotation;

 // Add some rotation leading
 //if (Holder.Controller != None)
 //{
 //    FinalRotation.Yaw = LagRot(NewRotation.Yaw & 65535, LastRotation.Yaw & 65535, MaxYawLag, 0);
 //    FinalRotation.Pitch = LagRot(NewRotation.Pitch & 65535, LastRotation.Pitch & 65535, MaxPitchLag, 1);
 //    FinalRotation.Roll = NewRotation.Roll;
 //}
 //else
 //{
 FinalRotation = NewRotation;
 //}
 //LastRotUpdate = WorldInfo.TimeSeconds;
 //LastRotation = NewRotation;

 if ( bIsWideScreen )
 {
 //FinalRotation += WidescreenRotationOffset;
 }
 SetRotation(FinalRotation);
}

simulated state WeaponEquipping
{
 simulated event BeginState(Name PreviousStateName)
 {
 PrintScreenDebug("Weapon Equipping");
 AttachWeaponTo(Instigator.Mesh);
 Super.BeginState(PreviousStateName);
 }
}

simulated state Active
{
 simulated event BeginState(Name PreviousStateName)
 {
 PrintScreenDebug("Active");
 Super.BeginState(PreviousStateName);
 }
}

simulated state WeaponFiring
{
 simulated event BeginState(Name PreviousStateName)
 {
 PrintScreenDebug("Firing");
 Super.BeginState(PreviousStateName);
 }

 /**
 * We override BeginFire() so that we can check for zooming and/or empty weapons
 */

 simulated function BeginFire( Byte FireModeNum )
 {
 // No Ammo, then do a quick exit.
 if( !HasAmmo(FireModeNum) )
 {
 WeaponEmpty();
 return;
 }
 Global.BeginFire(FireModeNum);
 }
}

defaultproperties
{
 Begin Object Name=FirstPersonMesh
 DepthPriorityGroup=SDPG_Foreground
 bOnlyOwnerSee=true
 bOverrideAttachmentOwnerVisibility=true
 CastShadow=false
 bAllowAmbientOcclusion=false
 End Object
 Mesh=FirstPersonMesh

 Begin Object Name=PickupMesh
 bOnlyOwnerSee=false
 CastShadow=false
 bForceDirectLightMap=true
 bCastDynamicShadow=false
 CollideActors=false
 BlockRigidBody=false
 bUseAsOccluder=false
 MaxDrawDistance=6000
 bForceRefPose=1
 bUpdateSkelWhenNotRendered=false
 bIgnoreControllersWhenNotRendered=true
 bAcceptsStaticDecals=FALSE
 bAcceptsDynamicDecals=FALSE
 bAllowAmbientOcclusion=false
 End Object
 DroppedPickupMesh=PickupMesh
 PickupFactoryMesh=PickupMesh

 MessageClass=class'UTPickupMessage'
 DroppedPickupClass=class'UTDroppedPickup'

 FiringStatesArray(0)=WeaponFiring
 FiringStatesArray(1)=WeaponFiring

 WeaponFireTypes(0)=EWFT_InstantHit
 WeaponFireTypes(1)=EWFT_InstantHit

 WeaponProjectiles(0)=none
 WeaponProjectiles(1)=none

 FireInterval(0)=+0.3
 FireInterval(1)=+0.3

 Spread(0)=0.0
 Spread(1)=0.0

 ShotCost(0)=1
 ShotCost(1)=1

 AmmoCount=5
 MaxAmmoCount=5

 InstantHitDamage(0)=0.0
 InstantHitDamage(1)=0.0
 InstantHitMomentum(0)=0.0
 InstantHitMomentum(1)=0.0
 InstantHitDamageTypes(0)=class'DamageType'
 InstantHitDamageTypes(1)=class'DamageType'
 WeaponRange=22000

 ShouldFireOnRelease(0)=0
 ShouldFireOnRelease(1)=0

 DefaultAnimSpeed=0.9

 EquipTime=+0.45
 PutDownTime=+0.33
}

DefaultGame.ini

[Engine.GameInfo]
DefaultGame=UDKGame.UDKGame
DefaultServerGame=UDKGame.UDKGame
PlayerControllerClassName=UDKGame.HTPlayerController
GameDifficulty=+1.0
MaxPlayers=32
DefaultMapPrefixes=(Prefix="HT",GameType="UDKGame.TheHuntGame")