Setting everything up.

src/playsim/p_pspr.cpp

@@ -132,6 +132,18 @@ DEFINE_FIELD(DPSprite, x)
 DEFINE_FIELD(DPSprite, y)
 DEFINE_FIELD(DPSprite, oldx)
 DEFINE_FIELD(DPSprite, oldy)
+DEFINE_FIELD(DPSprite, px)
+DEFINE_FIELD(DPSprite, py)
+DEFINE_FIELD(DPSprite, oldpx)
+DEFINE_FIELD(DPSprite, oldpy)
+DEFINE_FIELD(DPSprite, scalex)
+DEFINE_FIELD(DPSprite, scaley)
+DEFINE_FIELD(DPSprite, oldscalex)
+DEFINE_FIELD(DPSprite, oldscaley)
+DEFINE_FIELD(DPSprite, rotation)
+DEFINE_FIELD(DPSprite, oldrotation)
+DEFINE_FIELD(DPSprite, PivotPercent)
+DEFINE_FIELD(DPSprite, PivotScreen)
 DEFINE_FIELD(DPSprite, firstTic)
 DEFINE_FIELD(DPSprite, Tics)
 DEFINE_FIELD(DPSprite, Translation)
@@ -143,6 +155,8 @@ DEFINE_FIELD_BIT(DPSprite, Flags, bCVarFast, PSPF_CVARFAST)
 DEFINE_FIELD_BIT(DPSprite, Flags, bFlip, PSPF_FLIP)
 DEFINE_FIELD_BIT(DPSprite, Flags, bMirror, PSPF_MIRROR)
 DEFINE_FIELD_BIT(DPSprite, Flags, bPlayerTranslated, PSPF_PLAYERTRANSLATED)
+DEFINE_FIELD_BIT(DPSprite, Flags, bPivotPercent, PSPF_PIVOTPERCENT)
+DEFINE_FIELD_BIT(DPSprite, Flags, bPivotScreen, PSPF_PIVOTSCREEN)
 
 //------------------------------------------------------------------------
 //
@@ -163,7 +177,15 @@ DPSprite::DPSprite(player_t *owner, AActor *caller, int id)
   Sprite(0),
   Frame(0),
   ID(id),
-  processPending(true)
+  processPending(true),
+  scalex(1.0), scaley(1.0),
+  px(.0), py(.0),
+  rotation(.0),
+  oldscalex(.0), oldscaley(.0),
+  oldpx(.0), oldpy(.0),
+  oldrotation(.0),
+  PivotPercent(true),
+  PivotScreen(false)
 {
 	alpha = 1;
 	Renderstyle = STYLE_Normal;
@@ -192,7 +214,7 @@ DPSprite::DPSprite(player_t *owner, AActor *caller, int id)
 		Next->Destroy(); // Replace it.
 
 	if (Caller->IsKindOf(NAME_Weapon) || Caller->IsKindOf(NAME_PlayerPawn))
-		Flags = (PSPF_ADDWEAPON|PSPF_ADDBOB|PSPF_POWDOUBLE|PSPF_CVARFAST);
+		Flags = (PSPF_ADDWEAPON|PSPF_ADDBOB|PSPF_POWDOUBLE|PSPF_CVARFAST|PSPF_PIVOTPERCENT);
 }
 
 //------------------------------------------------------------------------
@@ -639,9 +661,10 @@ DEFINE_ACTION_FUNCTION(APlayerPawn, CheckWeaponButtons)
 
 //---------------------------------------------------------------------------
 //
-// PROC A_OverlayOffset
+// PROC A_OverlayScale
 //
 //---------------------------------------------------------------------------
+
 enum WOFFlags
 {
 	WOF_KEEPX = 1,
@@ -650,6 +673,127 @@ enum WOFFlags
 	WOF_INTERPOLATE = 1 << 3,
 };
 
+DEFINE_ACTION_FUNCTION(AActor, A_OverlayScale)
+{
+	PARAM_ACTION_PROLOGUE(AActor);
+	PARAM_INT(layer)
+	PARAM_FLOAT(wx)
+	PARAM_FLOAT(wy)
+	PARAM_INT(flags)
+	
+	if (!ACTION_CALL_FROM_PSPRITE())
+		return 0;
+
+	DPSprite *pspr = self->player->FindPSprite(((layer != 0) ? layer : stateinfo->mPSPIndex));
+
+	if (pspr == nullptr)
+		return 0;
+
+	if (flags & WOF_ADD)
+	{
+		if (!(flags & WOF_KEEPX))
+			pspr->scalex += wx;
+		if (!(flags & WOF_KEEPY))
+			pspr->scaley += (wy != 0.0 ? wy : wx);
+	}
+	else
+	{
+		if (!(flags & WOF_KEEPX))
+			pspr->scalex = wx;
+		if (!(flags & WOF_KEEPY))
+			pspr->scaley = (wy != 0.0 ? wy : wx);
+	}
+
+	if (!(flags & WOF_INTERPOLATE))
+	{
+		pspr->oldscalex = pspr->scalex;
+		pspr->oldscaley = pspr->scaley;
+	}
+
+	return 0;
+}
+
+//---------------------------------------------------------------------------
+//
+// PROC A_OverlayRotate
+//
+//---------------------------------------------------------------------------
+
+DEFINE_ACTION_FUNCTION(AActor, A_OverlayRotate)
+{
+	PARAM_ACTION_PROLOGUE(AActor);
+	PARAM_INT(layer)
+	PARAM_FLOAT(degrees)
+	PARAM_INT(flags)
+
+	if (!ACTION_CALL_FROM_PSPRITE())
+		return 0;
+
+	DPSprite *pspr = self->player->FindPSprite(((layer != 0) ? layer : stateinfo->mPSPIndex));
+
+	if (pspr == nullptr)
+		return 0;
+
+	pspr->rotation = (flags & WOF_ADD) ? pspr->rotation + degrees : degrees;
+	
+	if (!(flags & WOF_INTERPOLATE))
+		pspr->oldrotation = degrees;
+
+	return 0;
+}
+
+//---------------------------------------------------------------------------
+//
+// PROC A_OverlayPivot
+//
+//---------------------------------------------------------------------------
+
+DEFINE_ACTION_FUNCTION(AActor, A_OverlayPivot)
+{
+	PARAM_ACTION_PROLOGUE(AActor);
+	PARAM_INT(layer)
+	PARAM_FLOAT(wx)
+	PARAM_FLOAT(wy)
+	PARAM_INT(flags)
+
+	if (!ACTION_CALL_FROM_PSPRITE())
+		return 0;
+
+	DPSprite *pspr = self->player->FindPSprite(((layer != 0) ? layer : stateinfo->mPSPIndex));
+
+	if (pspr == nullptr)
+		return 0;
+
+	if (flags & WOF_ADD)
+	{
+		if (!(flags & WOF_KEEPX))
+			pspr->px += wx;
+		if (!(flags & WOF_KEEPY))
+			pspr->py += (wy != 0.0 ? wy : wx);
+	}
+	else
+	{
+		if (!(flags & WOF_KEEPX))
+			pspr->px = wx;
+		if (!(flags & WOF_KEEPY))
+			pspr->py = (wy != 0.0 ? wy : wx);
+	}
+
+	if (!(flags & WOF_INTERPOLATE))
+	{
+		pspr->oldpx = pspr->px;
+		pspr->oldpy = pspr->py;
+	}
+
+	return 0;
+}
+
+//---------------------------------------------------------------------------
+//
+// PROC A_OverlayOffset
+//
+//---------------------------------------------------------------------------
+
 void A_OverlayOffset(AActor *self, int layer, double wx, double wy, int flags)
 {
 	if ((flags & WOF_KEEPX) && (flags & WOF_KEEPY))

src/playsim/p_pspr.h

@@ -70,7 +70,9 @@ enum PSPFlags
 	PSPF_FORCEALPHA		= 1 << 7,
 	PSPF_FORCESTYLE		= 1 << 8,
 	PSPF_MIRROR			= 1 << 9,
-	PSPF_PLAYERTRANSLATED = 1 << 10
+	PSPF_PLAYERTRANSLATED = 1 << 10,
+	PSPF_PIVOTPERCENT	= 1 << 11,
+	PSPF_PIVOTSCREEN	= 1 << 12,
 };
 
 class DPSprite : public DObject
@@ -97,6 +99,14 @@ public:
 	std::pair<FRenderStyle, float> GetRenderStyle(FRenderStyle ownerstyle, double owneralpha);
 	float GetYAdjust(bool fullscreen);
 
+	bool PivotScreen;		// If true, the pivot is based on the entire screen width/height instead of the image's dimensions/position.
+	bool PivotPercent;		// If true, the pivot goes between [0.0, 1.0]. Otherwise, it's a pixel position offset from the image size.
+	double px, py;			// pivot points
+	double oldpx, oldpy;	
+	double rotation;		// How much rotation to apply.
+	double oldrotation;
+	double scalex, scaley;	// Scale
+	double oldscalex, oldscaley;	
 	double x, y, alpha;
 	double oldx, oldy;
 	bool firstTic;

src/rendering/hwrenderer/scene/hw_drawinfo.h

@@ -291,7 +291,7 @@ public:
 	void GetDynSpriteLight(AActor *thing, particle_t *particle, float *out);
 
 	void PreparePlayerSprites(sector_t * viewsector, area_t in_area);
-	void PrepareTargeterSprites();
+	void PrepareTargeterSprites(WeaponPosition *weap);
 
 	void UpdateCurrentMapSection();
 	void SetViewMatrix(const FRotator &angles, float vx, float vy, float vz, bool mirror, bool planemirror);

src/rendering/hwrenderer/scene/hw_weapon.cpp

@@ -169,17 +169,32 @@ static WeaponPosition GetWeaponPosition(player_t *player, double ticFrac)
 		{
 			w.wx = (float)w.weapon->x;
 			w.wy = (float)w.weapon->y;
+			w.sx = (float)w.weapon->scalex;
+			w.sy = (float)w.weapon->scaley;
+			w.px = (float)w.weapon->px;
+			w.py = (float)w.weapon->py;
+			w.r = (float)w.weapon->rotation;
 		}
 		else
 		{
 			w.wx = (float)(w.weapon->oldx + (w.weapon->x - w.weapon->oldx) * ticFrac);
 			w.wy = (float)(w.weapon->oldy + (w.weapon->y - w.weapon->oldy) * ticFrac);
+			w.px = (float)(w.weapon->oldpx + (w.weapon->px - w.weapon->oldpx) * ticFrac);
+			w.py = (float)(w.weapon->oldpy + (w.weapon->py - w.weapon->oldpy) * ticFrac);
+			w.sx = (float)(w.weapon->oldscalex + (w.weapon->scalex - w.weapon->oldscalex) * ticFrac);
+			w.sy = (float)(w.weapon->oldscaley + (w.weapon->scaley - w.weapon->oldscaley) * ticFrac);
+			w.r = (float)(w.weapon->oldrotation + (w.weapon->rotation - w.weapon->oldrotation) * ticFrac);
 		}
 	}
 	else
 	{
 		w.wx = 0;
 		w.wy = 0;
+		w.px = 0;
+		w.py = 0;
+		w.sx = 0;
+		w.sy = 0;
+		w.r = 0;
 	}
 	return w;
 }
@@ -407,7 +422,7 @@ bool HUDSprite::GetWeaponRenderStyle(DPSprite *psp, AActor *playermo, sector_t *
 //
 //==========================================================================
 
-bool HUDSprite::GetWeaponRect(HWDrawInfo *di, DPSprite *psp, float sx, float sy, player_t *player)
+bool HUDSprite::GetWeaponRect(HWDrawInfo *di, DPSprite *psp, float sx, float sy, player_t *player, WeaponPosition *weap)
 {
 	float			tx;
 	float			scale;
@@ -470,10 +485,42 @@ bool HUDSprite::GetWeaponRect(HWDrawInfo *di, DPSprite *psp, float sx, float sy,
 	auto verts = screen->mVertexData->AllocVertices(4);
 	mx = verts.second;
 
+
+	if (psp->rotation != 0.0 || psp->scalex != 1.0 || psp->scaley != 1.0)
+	{
+		double radang = psp->rotation * (pi::pi() / 180.);
+		double cosang = cos(radang);
+		double sinang = sin(radang);
+
+		double xcenter = psp->x;
+		double ycenter = psp->y;
+
+
+		double xx1 = xcenter + psp->scalex * (x1 * cosang + y1 * sinang);
+		double yy1 = ycenter + psp->scaley * (x1 * sinang - y1 * cosang);
+
+		double xx2 = xcenter + psp->scalex * (x1 * cosang + y2 * sinang);
+		double yy2 = ycenter + psp->scaley * (x1 * sinang - y2 * cosang);
+
+		double xx3 = xcenter + psp->scalex * (x2 * cosang + y1 * sinang);
+		double yy3 = ycenter + psp->scaley * (x2 * sinang - y1 * cosang);
+
+		double xx4 = xcenter + psp->scalex * (x2 * cosang + y2 * sinang);
+		double yy4 = ycenter + psp->scaley * (x2 * sinang - y2 * cosang);
+	
+		verts.first[0].Set(xx1, yy1, 0, u1, v1);
+		verts.first[1].Set(xx2, yy2, 0, u1, v2);
+		verts.first[2].Set(xx3, yy3, 0, u2, v1);
+		verts.first[3].Set(xx4, yy4, 0, u2, v2);
+	}
+	else
+	{
+
 		verts.first[0].Set(x1, y1, 0, u1, v1);
 		verts.first[1].Set(x1, y2, 0, u1, v2);
 		verts.first[2].Set(x2, y1, 0, u2, v1);
 		verts.first[3].Set(x2, y2, 0, u2, v2);
+	}
 
 	texture = tex;
 	return true;
@@ -554,12 +601,12 @@ void HWDrawInfo::PreparePlayerSprites(sector_t * viewsector, area_t in_area)
 		}
 		else
 		{
-			if (!hudsprite.GetWeaponRect(this, psp, spos.X, spos.Y, player)) continue;
+			if (!hudsprite.GetWeaponRect(this, psp, spos.X, spos.Y, player, &weap)) continue;
 		}
 		hudsprites.Push(hudsprite);
 	}
 	lightmode = oldlightmode;
-	PrepareTargeterSprites();
+	PrepareTargeterSprites(&weap);
 }
 
 
@@ -569,7 +616,7 @@ void HWDrawInfo::PreparePlayerSprites(sector_t * viewsector, area_t in_area)
 //
 //==========================================================================
 
-void HWDrawInfo::PrepareTargeterSprites()
+void HWDrawInfo::PrepareTargeterSprites(WeaponPosition *weap)
 {
 	AActor * playermo = players[consoleplayer].camera;
 	player_t * player = playermo->player;
@@ -601,7 +648,8 @@ void HWDrawInfo::PrepareTargeterSprites()
 		if (psp->GetState() != nullptr && (psp->GetID() != PSP_TARGETCENTER || CrosshairImage == nullptr))
 		{
 			hudsprite.weapon = psp;
-			if (hudsprite.GetWeaponRect(this, psp, psp->x, psp->y, player))
+			
+			if (hudsprite.GetWeaponRect(this, psp, psp->x, psp->y, player, weap))
 			{
 				hudsprites.Push(hudsprite);
 			}

src/rendering/hwrenderer/scene/hw_weapon.h

@@ -15,6 +15,9 @@ struct WeaponPosition
 {
 	float wx, wy;
 	float bobx, boby;
+	float sx, sy;
+	float px, py;
+	float r;
 	DPSprite *weapon;
 };
 
@@ -47,6 +50,6 @@ struct HUDSprite
 
 	void SetBright(bool isbelow);
 	bool GetWeaponRenderStyle(DPSprite *psp, AActor *playermo, sector_t *viewsector, WeaponLighting &light);
-	bool GetWeaponRect(HWDrawInfo *di, DPSprite *psp, float sx, float sy, player_t *player);
+	bool GetWeaponRect(HWDrawInfo *di, DPSprite *psp, float sx, float sy, player_t *player, WeaponPosition *weap);
 
 };

wadsrc/static/zscript/actors/actor.zs

@@ -1183,6 +1183,9 @@ class Actor : Thinker native
 
 	action native bool A_Overlay(int layer, statelabel start = null, bool nooverride = false);
 	native void A_WeaponOffset(double wx = 0, double wy = 32, int flags = 0);
+	action native void A_OverlayScale(int layer, double wx = 1, double wy = 0, int flags = 0);
+	action native void A_OverlayRotate(int layer, double degrees = 0, int flags = 0);
+	action native void A_OverlayPivot(int layer, double wx = 0.5, double wy = 0.5, int flags = 0);
 	action native void A_OverlayOffset(int layer = PSP_WEAPON, double wx = 0, double wy = 32, int flags = 0);
 	action native void A_OverlayFlags(int layer, int flags, bool set);
 	action native void A_OverlayAlpha(int layer, double alph);

wadsrc/static/zscript/actors/player/player.zs

@@ -2557,6 +2557,16 @@ class PSprite : Object native play
 	native double y;
 	native double oldx;
 	native double oldy;
+	native double px;
+	native double py;
+	native double oldpx;
+	native double oldpy;
+	native double scalex;
+	native double scaley;
+	native double oldscalex;
+	native double oldscaley;
+	native double rotation;
+	native double oldrotation;
 	native double alpha;
 	native Bool firstTic;
 	native int Tics;
@@ -2568,6 +2578,8 @@ class PSprite : Object native play
 	native bool bFlip;	
 	native bool bMirror;
 	native bool bPlayerTranslated;
+	native bool bPivotPercent;
+	native bool bPivotScreen;
 
 	native void SetState(State newstate, bool pending = false);