Removed an extra status calculation for players (#4525)

* Follow up to 2732176.
* Fixes #4150.
* Removed an extra status calculation for players resulting in some status data being nullified.
* Adjusted status calculation for autobonus and unequipping items.
* Cleaned up delayed damage logic.
Thanks to @cydh, @Hatfun, and @NeutralDev!

src/map/battle.cpp

@@ -304,36 +304,28 @@ TIMER_FUNC(battle_delay_damage_sub){
 	struct delay_damage *dat = (struct delay_damage *)data;
 
 	if ( dat ) {
-		struct block_list* src = NULL;
+		struct block_list* src = map_id2bl(dat->src_id);
 		struct block_list* target = map_id2bl(dat->target_id);
 
-		if( !target || status_isdead(target) ) { /* Nothing we can do */
-			if( dat->src_type == BL_PC && (src = map_id2bl(dat->src_id)) &&
-				--((TBL_PC*)src)->delayed_damage == 0 && ((TBL_PC*)src)->state.hold_recalc ) {
-				((TBL_PC*)src)->state.hold_recalc = 0;
-				status_calc_pc(((TBL_PC*)src), SCO_FORCE);
+		if (target && !status_isdead(target)) {
+			if( src && target->m == src->m &&
+				(target->type != BL_PC || ((TBL_PC*)target)->invincible_timer == INVALID_TIMER) &&
+				check_distance_bl(src, target, dat->distance) ) //Check to see if you haven't teleported. [Skotlex]
+			{
+				//Deal damage
+				battle_damage(src, target, dat->damage, dat->delay, dat->skill_lv, dat->skill_id, dat->dmg_lv, dat->attack_type, dat->additional_effects, tick, dat->isspdamage);
+			} else if( !src && dat->skill_id == CR_REFLECTSHIELD ) { // it was monster reflected damage, and the monster died, we pass the damage to the character as expected
+				map_freeblock_lock();
+				status_fix_damage(target, target, dat->damage, dat->delay);
+				map_freeblock_unlock();
 			}
-			ers_free(delay_damage_ers, dat);
-			return 0;
 		}
 
-		src = map_id2bl(dat->src_id);
+		struct map_session_data *sd = BL_CAST(BL_PC, src);
 
-		if( src && target->m == src->m &&
-			(target->type != BL_PC || ((TBL_PC*)target)->invincible_timer == INVALID_TIMER) &&
-			check_distance_bl(src, target, dat->distance) ) //Check to see if you haven't teleported. [Skotlex]
-		{
-			//Deal damage
-			battle_damage(src, target, dat->damage, dat->delay, dat->skill_lv, dat->skill_id, dat->dmg_lv, dat->attack_type, dat->additional_effects, tick, dat->isspdamage);
-		} else if( !src && dat->skill_id == CR_REFLECTSHIELD ) { // it was monster reflected damage, and the monster died, we pass the damage to the character as expected
-			map_freeblock_lock();
-			status_fix_damage(target, target, dat->damage, dat->delay);
-			map_freeblock_unlock();
-		}
-
-		if( src && src->type == BL_PC && --((TBL_PC*)src)->delayed_damage == 0 && ((TBL_PC*)src)->state.hold_recalc ) {
-			((TBL_PC*)src)->state.hold_recalc = 0;
-			status_calc_pc(((TBL_PC*)src), SCO_FORCE);
+		if (sd && --sd->delayed_damage == 0 && sd->state.hold_recalc) {
+			sd->state.hold_recalc = false;
+			status_calc_pc(sd, SCO_FORCE);
 		}
 	}
 	ers_free(delay_damage_ers, dat);

src/map/pc.cpp

@@ -2643,7 +2643,7 @@ void pc_exeautobonus(struct map_session_data *sd, std::vector<s_autobonus> *bonu
 
 	autobonus->active = add_timer(gettick()+autobonus->duration, pc_endautobonus, sd->bl.id, (intptr_t)bonus);
 	sd->state.autobonus |= autobonus->pos;
-	status_calc_pc(sd,SCO_FORCE);
+	status_calc_pc(sd,SCO_NONE);
 }
 
 /**
@@ -2664,7 +2664,7 @@ TIMER_FUNC(pc_endautobonus){
 		}
 	}
 	
-	status_calc_pc(sd,SCO_FORCE);
+	status_calc_pc(sd,SCO_NONE);
 	return 0;
 }
 
@@ -10417,8 +10417,10 @@ static void pc_unequipitem_sub(struct map_session_data *sd, int n, int flag) {
 		}
 	}
 
-	if (status_calc)
+	if (flag & 1 || status_calc) {
+		pc_checkallowskill(sd);
 		status_calc_pc(sd, SCO_NONE);
+	}
 
 	if (sd->sc.data[SC_SIGNUMCRUCIS] && !battle_check_undead(sd->battle_status.race, sd->battle_status.def_ele))
 		status_change_end(&sd->bl, SC_SIGNUMCRUCIS, INVALID_TIMER);
@@ -10444,8 +10446,6 @@ static void pc_unequipitem_sub(struct map_session_data *sd, int n, int flag) {
 		}
 	}
 
-	if (flag & 1)
-		status_calc_pc(sd, SCO_FORCE);
 	sd->npc_item_flag = iflag;
 }
 

src/map/pc.hpp

@@ -300,7 +300,7 @@ struct map_session_data {
 		unsigned int prevend : 1;//used to flag wheather you've spent 40sp to open the vending or not.
 		unsigned int warping : 1;//states whether you're in the middle of a warp processing
 		unsigned int permanent_speed : 1; // When 1, speed cannot be changed through status_calc_pc().
-		unsigned int hold_recalc : 1;
+		bool hold_recalc;
 		unsigned int banking : 1; //1 when we using the banking system 0 when closed
 		unsigned int hpmeter_visible : 1;
 		unsigned disable_atcommand_on_npc : 1; //Prevent to use atcommand while talking with NPC [Kichi]

src/map/status.cpp

@@ -5349,12 +5349,16 @@ void status_calc_bl_(struct block_list* bl, enum scb_flag flag, enum e_status_ca
 	struct status_data b_status; // Previous battle status
 	struct status_data* status; // Pointer to current battle status
 
-	if (bl->type == BL_PC && ((TBL_PC*)bl)->delayed_damage != 0) {
-		if (opt&SCO_FORCE)
-			((TBL_PC*)bl)->state.hold_recalc = 0; /* Clear and move on */
-		else {
-			((TBL_PC*)bl)->state.hold_recalc = 1; /* Flag and stop */
-			return;
+	if (bl->type == BL_PC) {
+		struct map_session_data *sd = BL_CAST(BL_PC, bl);
+
+		if (sd->delayed_damage != 0) {
+			if (opt&SCO_FORCE)
+				sd->state.hold_recalc = false; // Clear and move on
+			else {
+				sd->state.hold_recalc = true; // Flag and stop
+				return;
+			}
 		}
 	}
 
@@ -11766,33 +11770,31 @@ int status_change_start(struct block_list* src, struct block_list* bl,enum sc_ty
 	else
 		sce->timer = INVALID_TIMER; // Infinite duration
 
-	if (calc_flag)
-		status_calc_bl(bl,calc_flag);
+	if (calc_flag) {
+		if (sd) {
+			switch(type) {
+				// Statuses that adjust HP/SP and heal after starting
+				case SC_BERSERK:
+				case SC_MERC_HPUP:
+				case SC_MERC_SPUP:
+					status_calc_bl_(bl, static_cast<scb_flag>(calc_flag), SCO_FORCE);
+					break;
+				default:
+					status_calc_bl(bl, calc_flag);
+					break;
+			}
+		} else
+			status_calc_bl(bl, calc_flag);
+	}
 
 	if ( sc_isnew && StatusChangeStateTable[type] ) // Non-zero
 		status_calc_state(bl,sc,( enum scs_flag ) StatusChangeStateTable[type],true);
 
-
-	if(sd) {
-		if (sd->pd)
-			pet_sc_check(sd, type); // Skotlex: Pet Status Effect Healing
-		switch (type) {
-			case SC_BERSERK:
-			case SC_MERC_HPUP:
-			case SC_MERC_SPUP:
-				status_calc_pc(sd, SCO_FORCE);
-				break;
-			default:
-				status_calc_pc(sd, SCO_NONE);
-				break;
-		}
-	}
+	if (sd && sd->pd)
+		pet_sc_check(sd, type); // Skotlex: Pet Status Effect Healing
 
 	// 1st thing to execute when loading status
 	switch (type) {
-		case SC_FULL_THROTTLE:
-			status_percent_heal(bl,100,0);
-			break;
 		case SC_BERSERK:
 			if (!(sce->val2)) { // Don't heal if already set
 				status_heal(bl, status->max_hp, 0, 1); // Do not use percent_heal as this healing must override BERSERK's block.
@@ -11812,6 +11814,7 @@ int status_change_start(struct block_list* src, struct block_list* bl,enum sc_ty
 			if (sd)
 				clif_bossmapinfo(sd, map_id2boss(sce->val1), BOSS_INFO_ALIVE_WITHMSG); // First Message
 			break;
+		case SC_FULL_THROTTLE:
 		case SC_MERC_HPUP:
 			status_percent_heal(bl, 100, 0); // Recover Full HP
 			break;