Add ring shooter tire grabbers + more player logic

src/d_clisrv.c

@@ -2776,6 +2776,7 @@ void CL_ClearPlayer(INT32 playernum)
 		P_SetTarget(&players[playernum].hoverhyudoro, NULL);
 		P_SetTarget(&players[playernum].stumbleIndicator, NULL);
 		P_SetTarget(&players[playernum].sliptideZipIndicator, NULL);
+		P_SetTarget(&players[playernum].ringShooter, NULL);
 	}
 
 	// Handle parties.

src/d_player.h

@@ -505,7 +505,8 @@ struct player_t
 	UINT32 distancetofinish;
 	waypoint_t *currentwaypoint;
 	waypoint_t *nextwaypoint;
-	respawnvars_t respawn; // Respawn info
+	respawnvars_t respawn;	// Respawn info
+	mobj_t *ringShooter;	// DEZ respawner object
 	tic_t airtime; 			// Used to track just air time, but has evolved over time into a general "karted" timer. Rename this variable?
 	UINT8 startboost;		// (0 to 125) - Boost you get from start of race or respawn drop dash
 

src/g_game.c

@@ -2645,6 +2645,7 @@ void G_PlayerReborn(INT32 player, boolean betweenmaps)
 		P_SetTarget(&players[player].follower, NULL);
 		P_SetTarget(&players[player].awayview.mobj, NULL);
 		P_SetTarget(&players[player].stumbleIndicator, NULL);
+		P_SetTarget(&players[player].ringShooter, NULL);
 		P_SetTarget(&players[player].followmobj, NULL);
 
 		hoverhyudoro = players[player].hoverhyudoro;

src/k_objects.h

@@ -107,8 +107,9 @@ void Obj_BeginDropTargetMorph(mobj_t *target, skincolornum_t color);
 boolean Obj_DropTargetMorphThink(mobj_t *morph);
 
 /* Ring Shooter */
-void Obj_RingShooterThinker(mobj_t *mo);
+boolean Obj_RingShooterThinker(mobj_t *mo);
 void Obj_RingShooterInput(player_t *player);
+void Obj_RingShooterDelete(mobj_t *mo);
 
 #ifdef __cplusplus
 } // extern "C"

src/objects/ring-shooter.c

@@ -25,33 +25,76 @@
 #include "../k_waypoint.h"
 #include "../r_skins.h"
 #include "../k_respawn.h"
+#include "../lua_hook.h"
 
 #define RS_FUSE_TIME (4*TICRATE)
 
-static void ActivateRingShooter(mobj_t *mo)
-{
-	mobj_t *part = mo->tracer;
+#define RS_GRABBER_START (16 << FRACBITS)
+#define RS_GRABBER_SLIDE (RS_GRABBER_START >> 4)
+#define RS_GRABBER_EXTRA (18 << FRACBITS)
 
-	while (!P_MobjWasRemoved(part->tracer))
-	{
-		part = part->tracer;
-		part->renderflags &= ~RF_DONTDRAW;
-		part->frame += 4;
-	}
-}
+#define RS_KARTED_INC (3)
 
 #define rs_base_scalespeed(o) ((o)->scalespeed)
 #define rs_base_scalestate(o) ((o)->threshold)
 #define rs_base_xscale(o) ((o)->extravalue1)
 #define rs_base_yscale(o) ((o)->extravalue2)
 
+#define rs_base_playerid(o) ((o)->lastlook)
+#define rs_base_karted(o) ((o)->movecount)
+#define rs_base_grabberdist(o) ((o)->movefactor)
+#define rs_base_canceled(o) ((o)->cvmem)
+
 #define rs_part_xoffset(o) ((o)->extravalue1)
 #define rs_part_yoffset(o) ((o)->extravalue2)
 
+static void RemoveRingShooterPointer(mobj_t *base)
+{
+	player_t *player = NULL;
+
+	if (rs_base_playerid(base) < 0 || rs_base_playerid(base) >= MAXPLAYERS)
+	{
+		// No pointer set
+		return;
+	}
+
+	// NULL the player's pointer.
+	player = &players[ rs_base_playerid(base) ];
+	P_SetTarget(&player->ringShooter, NULL);
+
+	// Remove our player ID
+	rs_base_playerid(base) = -1;
+}
+
+
+static void ChangeRingShooterPointer(mobj_t *base, player_t *player)
+{
+	// Remove existing pointer first.
+	RemoveRingShooterPointer(base);
+
+	if (player == NULL)
+	{
+		// Just remove it.
+		return;
+	}
+
+	// Set new player pointer.
+	P_SetTarget(&player->ringShooter, base);
+
+	// Set new player ID.
+	rs_base_playerid(base) = (player - players);
+}
+
 static void ScalePart(mobj_t *part, mobj_t *base)
 {
 	part->spritexscale = rs_base_xscale(base);
 	part->spriteyscale = rs_base_yscale(base);
+
+	if (part->type == MT_TIREGRABBER)
+	{
+		part->spritexscale /= 2;
+		part->spriteyscale /= 2;
+	}
 }
 
 static void MovePart(mobj_t *part, mobj_t *base, mobj_t *refNipple)
@@ -64,12 +107,43 @@ static void MovePart(mobj_t *part, mobj_t *base, mobj_t *refNipple)
 	);
 }
 
+static void ShowHidePart(mobj_t *part, mobj_t *base)
+{
+	part->renderflags = (part->renderflags & ~RF_DONTDRAW) | (base->renderflags & RF_DONTDRAW);
+}
+
+static fixed_t GetTireDist(mobj_t *base)
+{
+	return -(RS_GRABBER_EXTRA + rs_base_grabberdist(base));
+}
+
+static void MoveTire(mobj_t *part, mobj_t *base)
+{
+	const fixed_t dis = FixedMul(GetTireDist(base), base->scale);
+	const fixed_t c = FINECOSINE(part->angle >> ANGLETOFINESHIFT);
+	const fixed_t s =   FINESINE(part->angle >> ANGLETOFINESHIFT);
+	P_MoveOrigin(
+		part,
+		base->x + FixedMul(dis, c),
+		base->y + FixedMul(dis, s),
+		part->z
+	);
+}
+
 // I've tried to reduce redundancy as much as I can,
 // but check K_SpawnRingShooter if you edit this
 static void UpdateRingShooterParts(mobj_t *mo)
 {
 	mobj_t *part, *refNipple;
 
+	part = mo;
+	while (!P_MobjWasRemoved(part->target))
+	{
+		part = part->target;
+		ScalePart(part, mo);
+		MoveTire(part, mo);
+	}
+
 	part = mo;
 	while (!P_MobjWasRemoved(part->hprev))
 	{
@@ -92,6 +166,47 @@ static void UpdateRingShooterParts(mobj_t *mo)
 	ScalePart(part, mo);
 }
 
+static void UpdateRingShooterPartsVisibility(mobj_t *mo)
+{
+	mobj_t *part;
+
+	part = mo;
+	while (!P_MobjWasRemoved(part->target))
+	{
+		part = part->target;
+		ShowHidePart(part, mo);
+	}
+
+	part = mo;
+	while (!P_MobjWasRemoved(part->hprev))
+	{
+		part = part->hprev;
+		ShowHidePart(part, mo);
+	}
+
+	part = mo;
+	while (!P_MobjWasRemoved(part->hnext))
+	{
+		part = part->hnext;
+		ShowHidePart(part, mo);
+	}
+
+	part = mo->tracer;
+	ShowHidePart(part, mo);
+}
+
+static void ActivateRingShooter(mobj_t *mo)
+{
+	mobj_t *part = mo->tracer;
+
+	while (!P_MobjWasRemoved(part->tracer))
+	{
+		part = part->tracer;
+		part->renderflags &= ~RF_DONTDRAW;
+		part->frame += 4;
+	}
+}
+
 static boolean RingShooterInit(mobj_t *mo)
 {
 	if (rs_base_scalestate(mo) == -1)
@@ -129,10 +244,26 @@ static boolean RingShooterInit(mobj_t *mo)
 			rs_base_xscale(mo) -= rs_base_scalespeed(mo);
 			if (rs_base_yscale(mo) >= FRACUNIT)
 			{
-				rs_base_scalestate(mo) = -1;
+				rs_base_scalestate(mo)++;
 				rs_base_xscale(mo) = rs_base_yscale(mo) = FRACUNIT;
+			}
+			break;
+		}
+		case 3:
+		{
+			rs_base_grabberdist(mo) -= RS_GRABBER_SLIDE;
+			if (rs_base_grabberdist(mo) <= 0)
+			{
+				rs_base_scalestate(mo) = -1;
+				rs_base_grabberdist(mo) = 0;
 				ActivateRingShooter(mo);
 			}
+			break;
+		}
+		default:
+		{
+			rs_base_scalestate(mo) = 0; // fix invalid states
+			break;
 		}
 	}
 
@@ -206,13 +337,87 @@ static void RingShooterFlicker(mobj_t *mo)
 	part->target->frame = (part->target->frame & ~FF_TRANSMASK) | trans;
 }
 
-void Obj_RingShooterThinker(mobj_t *mo)
+boolean Obj_RingShooterThinker(mobj_t *mo)
 {
-	if (P_MobjWasRemoved(mo->tracer) || RingShooterInit(mo))
-		return;
+	if (RingShooterInit(mo) == true)
+	{
+		return true;
+	}
 
-	RingShooterCountdown(mo);
-	RingShooterFlicker(mo);
+	if (mo->fuse > 0)
+	{
+		mo->fuse--;
+
+		if (mo->fuse == 0)
+		{
+			P_RemoveMobj(mo);
+			return false;
+		}
+	}
+
+	if (rs_base_canceled(mo) != 0)
+	{
+		rs_base_karted(mo) += RS_KARTED_INC;
+
+		if (P_MobjWasRemoved(mo->tracer) == false)
+		{
+			RingShooterCountdown(mo);
+			RingShooterFlicker(mo);
+		}
+	}
+
+	if (mo->fuse < TICRATE)
+	{
+		if (leveltime & 1)
+		{
+			mo->renderflags |= RF_DONTDRAW;
+		}
+		else
+		{
+			mo->renderflags &= ~RF_DONTDRAW;
+		}
+
+		UpdateRingShooterPartsVisibility(mo);
+	}
+
+	return true;
+}
+
+void Obj_RingShooterDelete(mobj_t *mo)
+{
+	mobj_t *part;
+
+	RemoveRingShooterPointer(mo);
+
+	part = mo->target;
+	while (P_MobjWasRemoved(part) == false)
+	{
+		mobj_t *delete = part;
+		part = part->target;
+		P_RemoveMobj(delete);
+	}
+
+	part = mo->hprev;
+	while (P_MobjWasRemoved(part) == false)
+	{
+		mobj_t *delete = part;
+		part = part->hprev;
+		P_RemoveMobj(delete);
+	}
+
+	part = mo->hnext;
+	while (P_MobjWasRemoved(part) == false)
+	{
+		mobj_t *delete = part;
+		part = part->hnext;
+		P_RemoveMobj(delete);
+	}
+
+	part = mo->tracer;
+	if (P_MobjWasRemoved(part) == false)
+	{
+		P_RemoveMobj(part);
+	}
 }
 
 static boolean AllowRingShooter(player_t *player)
@@ -254,8 +459,11 @@ static void SpawnRingShooter(player_t *player)
 	vector2_t offset;
 	SINT8 i;
 
+	rs_base_playerid(base) = -1;
+	rs_base_karted(base) = -(RS_KARTED_INC * TICRATE); // wait for "3"
+	rs_base_grabberdist(base) = RS_GRABBER_START;
+
 	K_FlipFromObject(base, mo);
-	P_SetTarget(&base->target, mo);
 	P_SetScale(base, base->destscale = FixedMul(base->destscale, scale));
 	base->angle = mo->angle;
 	base->scalespeed = FRACUNIT/2;
@@ -264,10 +472,11 @@ static void SpawnRingShooter(player_t *player)
 	base->fuse = RS_FUSE_TIME;
 
 	// the ring shooter object itself is invisible and acts as the thinker
-	// each ring shooter uses three linked lists to keep track of its parts
+	// each ring shooter uses four linked lists to keep track of its parts
 	// the hprev chain stores the two NIPPLE BARS
 	// the hnext chain stores the four sides of the box
 	// the tracer chain stores the screen and the screen layers
+	// the target chain stores the tire grabbers
 
 	// spawn the RING NIPPLES
 	part = base;
@@ -343,14 +552,66 @@ static void SpawnRingShooter(player_t *player)
 		P_SetMobjState(part, S_RINGSHOOTER_NUMBERBACK + i);
 		part->renderflags |= RF_DONTDRAW;
 	}
+
+	// spawn the grabbers
+	part = base;
+	angle = base->angle + ANGLE_45;
+	for (i = 0; i < 4; i++)
+	{
+		const fixed_t dis = GetTireDist(base);
+		P_SetTarget(
+			&part->target,
+			P_SpawnMobjFromMobj(
+				base,
+				P_ReturnThrustX(NULL, angle, dis),
+				P_ReturnThrustY(NULL, angle, dis),
+				0,
+				MT_TIREGRABBER
+			)
+		);
+		part = part->target;
+		P_SetTarget(&part->tracer, base);
+
+		angle -= ANGLE_90;
+		part->angle = angle;
+		part->extravalue1 = part->extravalue2 = 0;
+		part->old_spriteyscale = part->spriteyscale = 0;
+	}
+
+	ChangeRingShooterPointer(base, player);
 }
 
 void Obj_RingShooterInput(player_t *player)
 {
+	mobj_t *const base = player->ringShooter;
+
 	if (AllowRingShooter(player) == true
-		&& (player->cmd.buttons & BT_RESPAWN) == BT_RESPAWN
-		&& (player->oldcmd.buttons & BT_RESPAWN) == 0)
+		&& (player->cmd.buttons & BT_RESPAWN) == BT_RESPAWN)
 	{
-		SpawnRingShooter(player);
+		if (P_MobjWasRemoved(base) == true)
+		{
+			SpawnRingShooter(player);
+			return;
+		}
+
+		if (rs_base_canceled(base) != 0)
+		{
+			if (base->fuse < TICRATE)
+			{
+				base->renderflags &= ~RF_DONTDRAW;
+				UpdateRingShooterPartsVisibility(base);
+			}
+
+			base->fuse = RS_FUSE_TIME;
+		}
+	}
+	else if (P_MobjWasRemoved(base) == false)
+	{
+		if (rs_base_scalestate(base) != -1)
+		{
+			// We released during the intro animation.
+			// Cancel it entirely.
+			rs_base_canceled(base) = 1;
+		}
 	}
 }

src/p_mobj.c

@@ -6642,7 +6642,10 @@ static void P_MobjSceneryThink(mobj_t *mobj)
 		}
 		break;
 	case MT_RINGSHOOTER:
-		Obj_RingShooterThinker(mobj);
+		if (Obj_RingShooterThinker(mobj) == false)
+		{
+			return;
+		}
 		break;
 	case MT_SPINDASHWIND:
 	case MT_DRIFTELECTRICSPARK:
@@ -11143,26 +11146,10 @@ void P_RemoveMobj(mobj_t *mobj)
 			iquetail = (iquetail+1)&(ITEMQUESIZE-1);
 	}
 
-	if (mobj->type == MT_KARMAHITBOX) // Remove linked list objects for certain types
-	{
-		mobj_t *cur = mobj->hnext;
-
-		while (cur && !P_MobjWasRemoved(cur))
-		{
-			mobj_t *prev = cur; // Kind of a dumb var, but we need to set cur before we remove the mobj
-			cur = cur->hnext;
-			P_RemoveMobj(prev);
-		}
-	}
-
-	if (mobj->type == MT_OVERLAY)
-		P_RemoveOverlay(mobj);
-
-	if (mobj->type == MT_SPB)
-		spbplace = -1;
-
 	if (P_IsTrackerType(mobj->type))
+	{
 		P_RemoveTracker(mobj);
+	}
 
 	if (mobj->player && mobj->player->followmobj)
 	{
@@ -11170,19 +11157,56 @@ void P_RemoveMobj(mobj_t *mobj)
 		P_SetTarget(&mobj->player->followmobj, NULL);
 	}
 
-	if (mobj->type == MT_SHRINK_POHBEE)
+	// Remove linked list objects for certain types
+	switch (mobj->type)
 	{
-		Obj_PohbeeRemoved(mobj);
-	}
+		case MT_KARMAHITBOX:
+		{
+			mobj_t *cur = mobj->hnext;
 
-	if (mobj->type == MT_SHRINK_GUN)
-	{
-		Obj_ShrinkGunRemoved(mobj);
-	}
+			while (cur && !P_MobjWasRemoved(cur))
+			{
+				mobj_t *prev = cur; // Kind of a dumb var, but we need to set cur before we remove the mobj
+				cur = cur->hnext;
+				P_RemoveMobj(prev);
+			}
 
-	if (mobj->type == MT_SPECIAL_UFO_PIECE)
-	{
-		Obj_UFOPieceRemoved(mobj);
+			break;
+		}
+		case MT_OVERLAY:
+		{
+			P_RemoveOverlay(mobj);
+			break;
+		}
+		case MT_SPB:
+		{
+			spbplace = -1;
+			break;
+		}
+		case MT_SHRINK_POHBEE:
+		{
+			Obj_PohbeeRemoved(mobj);
+			break;
+		}
+		case MT_SHRINK_GUN:
+		{
+			Obj_ShrinkGunRemoved(mobj);
+			break;
+		}
+		case MT_SPECIAL_UFO_PIECE:
+		{
+			Obj_UFOPieceRemoved(mobj);
+			break;
+		}
+		case MT_RINGSHOOTER:
+		{
+			Obj_RingShooterDelete(mobj);
+			break;
+		}
+		default:
+		{
+			break;
+		}
 	}
 
 	mobj->health = 0; // Just because

src/p_saveg.c

@@ -63,14 +63,15 @@ savedata_t savedata;
 // than an UINT16
 typedef enum
 {
-	AWAYVIEW   = 0x01,
-	FOLLOWITEM = 0x02,
-	FOLLOWER   = 0x04,
-	SKYBOXVIEW = 0x08,
-	SKYBOXCENTER = 0x10,
-	HOVERHYUDORO = 0x20,
-	STUMBLE = 0x40,
-	SLIPTIDEZIP = 0x80
+	AWAYVIEW   = 0x0001,
+	FOLLOWITEM = 0x0002,
+	FOLLOWER   = 0x0004,
+	SKYBOXVIEW = 0x0008,
+	SKYBOXCENTER = 0x0010,
+	HOVERHYUDORO = 0x0020,
+	STUMBLE = 0x0040,
+	SLIPTIDEZIP = 0x0080,
+	RINGSHOOTER = 0x0100
 } player_saveflags;
 
 static inline void P_ArchivePlayer(savebuffer_t *save)
@@ -217,6 +218,9 @@ static void P_NetArchivePlayers(savebuffer_t *save)
 		if (players[i].sliptideZipIndicator)
 			flags |= SLIPTIDEZIP;
 
+		if (players[i].ringShooter)
+			flags |= RINGSHOOTER;
+
 		WRITEUINT16(save->p, flags);
 
 		if (flags & SKYBOXVIEW)
@@ -240,6 +244,9 @@ static void P_NetArchivePlayers(savebuffer_t *save)
 		if (flags & SLIPTIDEZIP)
 			WRITEUINT32(save->p, players[i].sliptideZipIndicator->mobjnum);
 
+		if (flags & RINGSHOOTER)
+			WRITEUINT32(save->p, players[i].ringShooter->mobjnum);
+
 		WRITEUINT32(save->p, (UINT32)players[i].followitem);
 
 		WRITEUINT32(save->p, players[i].charflags);
@@ -613,6 +620,9 @@ static void P_NetUnArchivePlayers(savebuffer_t *save)
 		if (flags & SLIPTIDEZIP)
 			players[i].sliptideZipIndicator = (mobj_t *)(size_t)READUINT32(save->p);
 
+		if (flags & RINGSHOOTER)
+			players[i].ringShooter = (mobj_t *)(size_t)READUINT32(save->p);
+
 		players[i].followitem = (mobjtype_t)READUINT32(save->p);
 
 		//SetPlayerSkinByNum(i, players[i].skin);
@@ -4823,6 +4833,13 @@ static void P_RelinkPointers(void)
 			if (!P_SetTarget(&players[i].sliptideZipIndicator, P_FindNewPosition(temp)))
 				CONS_Debug(DBG_GAMELOGIC, "sliptideZipIndicator not found on player %d\n", i);
 		}
+		if (players[i].ringShooter)
+		{
+			temp = (UINT32)(size_t)players[i].ringShooter;
+			players[i].ringShooter = NULL;
+			if (!P_SetTarget(&players[i].ringShooter, P_FindNewPosition(temp)))
+				CONS_Debug(DBG_GAMELOGIC, "ringShooter not found on player %d\n", i);
+		}
 	}
 }