- Adjusted AlterWeaponSprite so that it properly handles multiple

invisibility powerups at the same time.


SVN r450 (trunk)

docs/rh-log.txt

@@ -1,3 +1,7 @@
+January 13, 2007 (Changes by Graf Zahl)
+- Adjusted AlterWeaponSprite so that it properly handles multiple
+  invisibility powerups at the same time.
+
 January 13, 2007
 - Integrated the fatal error display into the text logger.
   Next: Figure out how to do all this fancy new startup window stuff with GTK+

src/g_shared/a_artifacts.cpp

@@ -454,8 +454,9 @@ void APowerInvulnerable::EndEffect ()
 //
 //===========================================================================
 
-void APowerInvulnerable::AlterWeaponSprite (vissprite_t *vis)
+int APowerInvulnerable::AlterWeaponSprite (vissprite_t *vis)
 {
+	int changed = Inventory == NULL? false : Inventory->AlterWeaponSprite(vis);
 	if (Owner != NULL)
 	{
 		if (mode == NAME_Ghost && !(Owner->flags & MF_SHADOW))
@@ -464,6 +465,7 @@ void APowerInvulnerable::AlterWeaponSprite (vissprite_t *vis)
 			if (wp_alpha != FIXED_MAX) vis->alpha = wp_alpha;
 		}
 	}
+	return changed;
 }
 
 // Strength (aka Berserk) Powerup --------------------------------------------
@@ -574,6 +576,19 @@ void APowerInvisibility::EndEffect ()
 		Owner->flags3 &= ~MF3_GHOST;
 		Owner->RenderStyle = STYLE_Normal;
 		Owner->alpha = OPAQUE;
+
+		// Check whether there are other invisibility items and refresh their effect.
+		// If this isn't done there will be one incorrectly drawn frame when this
+		// item expires.
+		AInventory *item = Owner->Inventory;
+		while (item != NULL)
+		{
+			if (item->IsKindOf(RUNTIME_CLASS(APowerInvisibility)) && item != this)
+			{
+				static_cast<APowerInvisibility*>(item)->InitEffect();
+			}
+			item = item->Inventory;
+		}
 	}
 }
 
@@ -583,18 +598,23 @@ void APowerInvisibility::EndEffect ()
 //
 //===========================================================================
 
-void APowerInvisibility::AlterWeaponSprite (vissprite_t *vis)
+int APowerInvisibility::AlterWeaponSprite (vissprite_t *vis)
 {
-	if (Inventory != NULL)
-	{
-		Inventory->AlterWeaponSprite (vis);
-	}
+	int changed = Inventory == NULL? false : Inventory->AlterWeaponSprite(vis);
 
 	// Blink if the powerup is wearing off
-	if (EffectTics < 4*32 && !(EffectTics & 8))
+	if (changed == 0 && EffectTics < 4*32 && !(EffectTics & 8))
 	{
 		vis->RenderStyle = STYLE_Normal;
+		return 1;
 	}
+	else if (changed == 1)
+	{
+		// something else set the weapon sprite back to opaque but this item is still active.
+		vis->alpha = FRACUNIT/5;
+		vis->RenderStyle = STYLE_OptFuzzy;
+	}
+	return -1;	// This item is valid so another one shouldn't reset the translucency
 }
 
 // Ghost Powerup (Heretic's version of invisibility) -------------------------
@@ -617,6 +637,31 @@ void APowerGhost::InitEffect ()
 	Owner->RenderStyle = STYLE_Translucent;
 }
 
+//===========================================================================
+//
+// APowerGhost :: AlterWeaponSprite
+//
+//===========================================================================
+
+int APowerGhost::AlterWeaponSprite (vissprite_t *vis)
+{
+	int changed = Inventory == NULL? false : Inventory->AlterWeaponSprite(vis);
+
+	// Blink if the powerup is wearing off
+	if (changed == 0 && EffectTics < 4*32 && !(EffectTics & 8))
+	{
+		vis->RenderStyle = STYLE_Normal;
+		return 1;
+	}
+	else if (changed == 1)
+	{
+		// something else set the weapon sprite back to opaque but this item is still active.
+		vis->alpha = HR_SHADOW;
+		vis->RenderStyle = STYLE_Translucent;
+	}
+	return -1;	// This item is valid so another one shouldn't reset the translucency
+}
+
 // Shadow Powerup (Strife's version of invisibility) -------------------------
 
 IMPLEMENT_STATELESS_ACTOR (APowerShadow, Any, -1, 0)
@@ -637,6 +682,31 @@ void APowerShadow::InitEffect ()
 	Owner->RenderStyle = STYLE_Translucent;
 }
 
+//===========================================================================
+//
+// APowerShadow :: AlterWeaponSprite
+//
+//===========================================================================
+
+int APowerShadow::AlterWeaponSprite (vissprite_t *vis)
+{
+	int changed = Inventory == NULL? false : Inventory->AlterWeaponSprite(vis);
+
+	// Blink if the powerup is wearing off
+	if (changed == 0 && EffectTics < 4*32 && !(EffectTics & 8))
+	{
+		vis->RenderStyle = STYLE_Normal;
+		return 1;
+	}
+	else if (changed == 1)
+	{
+		// something else set the weapon sprite back to opaque but this item is still active.
+		vis->alpha = TRANSLUC25;
+		vis->RenderStyle = STYLE_Translucent;
+	}
+	return -1;	// This item is valid so another one shouldn't reset the translucency
+}
+
 // Ironfeet Powerup ----------------------------------------------------------
 
 IMPLEMENT_STATELESS_ACTOR (APowerIronFeet, Any, -1, 0)

src/g_shared/a_artifacts.h

@@ -69,7 +69,7 @@ protected:
 	void InitEffect ();
 	void DoEffect ();
 	void EndEffect ();
-	void AlterWeaponSprite (vissprite_t *vis);
+	int AlterWeaponSprite (vissprite_t *vis);
 };
 
 class APowerStrength : public APowerup
@@ -90,7 +90,7 @@ protected:
 	void InitEffect ();
 	void DoEffect ();
 	void EndEffect ();
-	void AlterWeaponSprite (vissprite_t *vis);
+	int AlterWeaponSprite (vissprite_t *vis);
 };
 
 class APowerGhost : public APowerInvisibility
@@ -98,6 +98,7 @@ class APowerGhost : public APowerInvisibility
 	DECLARE_STATELESS_ACTOR (APowerGhost, APowerInvisibility)
 protected:
 	void InitEffect ();
+	int AlterWeaponSprite (vissprite_t *vis);
 };
 
 class APowerShadow : public APowerInvisibility
@@ -105,6 +106,7 @@ class APowerShadow : public APowerInvisibility
 	DECLARE_STATELESS_ACTOR (APowerShadow, APowerInvisibility)
 protected:
 	void InitEffect ();
+	int AlterWeaponSprite (vissprite_t *vis);
 };
 
 class APowerIronFeet : public APowerup

src/g_shared/a_pickups.cpp

@@ -768,12 +768,13 @@ void AInventory::AbsorbDamage (int damage, FName damageType, int &newdamage)
 //
 //===========================================================================
 
-void AInventory::AlterWeaponSprite (vissprite_t *vis)
+int AInventory::AlterWeaponSprite (vissprite_t *vis)
 {
 	if (Inventory != NULL)
 	{
-		Inventory->AlterWeaponSprite (vis);
+		return Inventory->AlterWeaponSprite (vis);
 	}
+	return 0;
 }
 
 //===========================================================================

src/g_shared/a_pickups.h

@@ -151,7 +151,7 @@ public:
 	virtual void OwnerDied ();
 
 	virtual void AbsorbDamage (int damage, FName damageType, int &newdamage);
-	virtual void AlterWeaponSprite (vissprite_t *vis);
+	virtual int AlterWeaponSprite (vissprite_t *vis);
 
 	virtual PalEntry GetBlend ();
 

src/thingdef.cpp

@@ -2619,7 +2619,7 @@ static void ActorMass (AActor *defaults, Baggage &bag)
 static void ActorXScale (AActor *defaults, Baggage &bag)
 {
 	SC_MustGetFloat();
-	defaults->scaleY = FLOAT2FIXED(sc_Float);
+	defaults->scaleX = FLOAT2FIXED(sc_Float);
 }
 
 //==========================================================================