Implement pohbee chain

Crashes when drawing the sprites after looking at it for like half a second and idk why tf

src/deh_tables.c

@@ -3760,6 +3760,7 @@ const char *const STATE_LIST[] = { // array length left dynamic for sanity testi
 
 	// Shrink
 	"S_SHRINK_GUN",
+	"S_SHRINK_CHAIN",
 	"S_SHRINK_LASER",
 	"S_SHRINK_PARTICLE",
 

src/info.c

@@ -574,6 +574,7 @@ char sprnames[NUMSPRITES + 1][5] =
 	"FLMF", // Flame Shield flash
 	"HYUU", // Hyudoro
 	"GRWP", // Grow
+	"POHB", // Shrink Poh-Bee
 	"SHRG", // Shrink gun / laser
 	"SINK", // Kitchen Sink
 	"SITR", // Kitchen Sink Trail
@@ -4319,6 +4320,7 @@ state_t states[NUMSTATES] =
 	{SPR_GRWP, FF_FULLBRIGHT|FF_ANIMATE, 13, {NULL}, 7, 1, S_NULL}, // S_GROW_PARTICLE
 
 	{SPR_SHRG, 0, -1, {NULL}, 0, 0, S_NULL}, // S_SHRINK_GUN
+	{SPR_POHB, 0, -1, {NULL}, 0, 0, S_NULL}, // S_SHRINK_CHAIN
 	{SPR_SHRG, FF_FULLBRIGHT|1, -1, {NULL}, 0, 0, S_NULL}, // S_SHRINK_LASER
 	{SPR_SHRG, FF_FULLBRIGHT|2, -1, {NULL}, 0, 0, S_NULL}, // S_SHRINK_PARTICLE
 
@@ -24127,7 +24129,7 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 
 	{           // MT_SHRINK_CHAIN
 		-1,             // doomednum
-		S_SHRINK_GUN,   // spawnstate
+		S_SHRINK_CHAIN, // spawnstate
 		1000,           // spawnhealth
 		S_NULL,         // seestate
 		sfx_None,       // seesound
@@ -24142,13 +24144,13 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		S_NULL,         // xdeathstate
 		sfx_None,       // deathsound
 		0,              // speed
-		16*FRACUNIT,    // radius
+		26*FRACUNIT,    // radius
-		120*FRACUNIT,   // height
+		26*FRACUNIT,    // height
 		0,              // display offset
 		0,              // mass
 		0,              // damage
 		sfx_None,       // activesound
-		MF_NOTHINK|MF_NOCLIP|MF_NOCLIPTHING|MF_NOCLIPHEIGHT|MF_NOGRAVITY|MF_DONTENCOREMAP, // flags
+		MF_SCENERY|MF_NOCLIP|MF_NOCLIPTHING|MF_NOCLIPHEIGHT|MF_NOGRAVITY|MF_DONTENCOREMAP, // flags
 		S_NULL          // raisestate
 	},
 

src/info.h

@@ -1120,6 +1120,7 @@ typedef enum sprite
 	SPR_FLMF, // Flame Shield flash
 	SPR_HYUU, // Hyudoro
 	SPR_GRWP, // Grow
+	SPR_POHB, // Shrink Poh-Bee
 	SPR_SHRG, // Shrink gun / laser
 	SPR_SINK, // Kitchen Sink
 	SPR_SITR, // Kitchen Sink Trail
@@ -4752,6 +4753,7 @@ typedef enum state
 
 	// Shrink
 	S_SHRINK_GUN,
+	S_SHRINK_CHAIN,
 	S_SHRINK_LASER,
 	S_SHRINK_PARTICLE,
 

src/objects/shrink.c

@@ -31,7 +31,7 @@
 #define GUN_SWING (ANGLE_90 - ANG10)
 #define GUN_SWINGTIME (4 * TICRATE)
 
-#define CHAIN_SIZE (16)
+#define CHAIN_SIZE (52)
 
 #define EXTRA_FOR_FIRST (7)
 
@@ -58,6 +58,8 @@ enum
 #define gun_laser(o) ((o)->tracer)
 #define gun_chains(o) ((o)->hprev)
 
+#define chain_index(o) ((o)->extravalue1)
+
 enum
 {
 	LASER_SHRINK,
@@ -333,6 +335,34 @@ static void ShrinkLaserThinker(mobj_t *pohbee, mobj_t *gun, mobj_t *laser)
 	}
 }
 
+static void DoGunChains(mobj_t *gun, mobj_t *pohbee)
+{
+	const fixed_t gunZ = P_GetMobjHead(gun);
+	const fixed_t beeZ = P_GetMobjFeet(pohbee);
+
+	const fixed_t offsetX = (pohbee->x - gun->x) / gun_numsegs(gun);
+	const fixed_t offsetY = (pohbee->y - gun->y) / gun_numsegs(gun);
+	const fixed_t offsetZ = (beeZ - gunZ) / gun_numsegs(gun);
+
+	mobj_t *chain = NULL;
+
+	fixed_t curX = gun->x + (offsetX / 2);
+	fixed_t curY = gun->y + (offsetY / 2);
+	fixed_t curZ = gunZ + (offsetZ / 2);
+
+	chain = gun_chains(gun);
+	while (chain != NULL && P_MobjWasRemoved(chain) == false)
+	{
+		PohbeeMoveTo(chain, curX, curY, curZ);
+
+		curX += offsetX;
+		curY += offsetY;
+		curZ += offsetZ;
+
+		chain = gun_chains(chain);
+	}
+}
+
 static void ShrinkGunThinker(mobj_t *gun)
 {
 	mobj_t *pohbee = gun_pohbee(gun);
@@ -352,6 +382,8 @@ static void ShrinkGunThinker(mobj_t *gun)
 	{
 		ShrinkLaserThinker(pohbee, gun, gun_laser(gun));
 	}
+
+	DoGunChains(gun, pohbee);
 }
 
 void Obj_PohbeeThinker(mobj_t *pohbee)
@@ -612,7 +644,7 @@ static void CreatePohbee(player_t *owner, waypoint_t *start, waypoint_t *end, UI
 
 		mobj_t *gun = P_SpawnMobjFromMobj(pohbee, 0, 0, 0, MT_SHRINK_GUN);
 		mobj_t *laser = NULL;
-		//mobj_t *prevChain = NULL;
+		mobj_t *prevChain = NULL;
 
 		P_SetTarget(&gun_pohbee(gun), pohbee);
 		P_SetTarget(&pohbee_guns(prevGun), gun);
@@ -623,16 +655,16 @@ static void CreatePohbee(player_t *owner, waypoint_t *start, waypoint_t *end, UI
 		laser = P_SpawnMobjFromMobj(gun, 0, 0, 0, MT_SHRINK_LASER);
 		P_SetTarget(&gun_laser(gun), laser);
 
-		/*
 		prevChain = gun;
 		for (j = 0; j < numSegs; j++)
 		{
 			mobj_t *chain = P_SpawnMobjFromMobj(gun, 0, 0, 0, MT_SHRINK_CHAIN);
+
 			P_SetTarget(&gun_chains(prevChain), chain);
+			chain_index(chain) = j;
+
 			prevChain = chain;
 		}
-		*/
-		(void)j;
 
 		prevGun = gun;
 	}