Rebalance of SA_AUTOSPELL (Hindsight)

- Autocast level changed
  - Old: The Bolt skills will vary in level from level 1 to 3
         The level 1 version will occur 50% of the time, level 2 35%,
           and level 3 at 15%
  - New: Levels of autocasted spells is the half of Hindsight level.
         If autocasted spells has lower level than half of Hindsight levels,
            actual skill level will be autocasted instead.
- Autocast chance changed
  - Old: 7% - 25%
  - New: (Skill Level x 2)%
- Usable skills changed
  - Old: Napalm Beat, Fire Bolt, Cold Bolt, Lightning Bolt,
         Soul Strike, Fire Ball, Frost Diver
  - New: Fire Bolt, Cold Bolt, Lightning Bolt, Soul Strike,
         Fire Ball, Earth Spike, Frost Diver, Thunderstorm, Heaven's Drive

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)

src/map/battle.c

@@ -6832,12 +6832,21 @@ static enum damage_lv battle_weapon_attack(struct block_list *src, struct block_
 		int sp = 0;
 		uint16 skill_id = sc->data[SC_AUTOSPELL]->val2;
 		uint16 skill_lv = sc->data[SC_AUTOSPELL]->val3;
-		int i = rnd()%100;
-		if (sc->data[SC_SOULLINK] && sc->data[SC_SOULLINK]->val2 == SL_SAGE)
+#ifndef RENEWAL
+		int i = rnd() % 100;
+		if (sc->data[SC_SOULLINK] != NULL && sc->data[SC_SOULLINK]->val2 == SL_SAGE)
 			i = 0; //Max chance, no skill_lv reduction. [Skotlex]
-		if (i >= 50) skill_lv -= 2;
-		else if (i >= 15) skill_lv--;
-		if (skill_lv < 1) skill_lv = 1;
+
+		if (i >= 50)
+			skill_lv -= 2;
+		else if (i >= 15)
+			skill_lv--;
+		if (skill_lv < 1)
+			skill_lv = 1;
+#else
+		if (sd != NULL && skill_lv > pc->checkskill(sd, skill_id))
+			skill_lv = pc->checkskill(sd, skill_id);
+#endif
 		sp = skill->get_sp(skill_id,skill_lv) * 2 / 3;
 
 		if (status->charge(src, 0, sp)) {

src/map/skill.c

@@ -17910,6 +17910,7 @@ static int skill_autospell_list(const struct autospell_skill **list)
 {
 	nullpo_retr(0, list);
 
+#ifndef RENEWAL
 	// MUST be sorted by autospell_level (first field)
 	static const struct autospell_skill skills_list[] = {
 		{ 1, MG_NAPALMBEAT,    { 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 } },
@@ -17920,6 +17921,20 @@ static int skill_autospell_list(const struct autospell_skill **list)
 		{ 8, MG_FIREBALL,      { 0, 0, 0, 0, 0, 0, 0, 1, 2, 2 } },
 		{ 10, MG_FROSTDIVER,   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 } },
 	};
+#else
+	// MUST be sorted by autospell_level (first field)
+	static const struct autospell_skill skills_list[] = {
+		{ 1, MG_COLDBOLT },
+		{ 1, MG_FIREBOLT },
+		{ 1, MG_LIGHTNINGBOLT },
+		{ 4, MG_SOULSTRIKE },
+		{ 4, MG_FIREBALL },
+		{ 7, WZ_EARTHSPIKE },
+		{ 7, MG_FROSTDIVER },
+		{ 10, MG_THUNDERSTORM },
+		{ 10, WZ_HEAVENDRIVE },
+	};
+#endif
 	static const int list_len = ARRAYLENGTH(skills_list);
 
 #if PACKETVER_MAIN_NUM < 20181128 && PACKETVER_RE_NUM < 20181031
@@ -18000,7 +18015,18 @@ static void skill_autospell_select_spell(struct block_list *bl, int skill_lv)
 		skill_idx += rnd() % (upper_idx - lower_idx);
 
 	const struct autospell_skill *sk = (skills_list + skill_idx);
-	sc_start4(bl, bl, SC_AUTOSPELL, 100, skill_lv, sk->skill_id, sk->skill_lv[skill_lv - 1], 0,
+
+	int max_lv;
+#ifndef RENEWAL
+		max_lv = sk->skill_lv[skill_lv - 1]
+#else
+		// @TODO: Is this how AutoSpell works for non-players after rebalance? I made it the same as the player one...
+		max_lv = skill_lv / 2;
+		if (max_lv == 0)
+			max_lv = 1;
+#endif
+
+	sc_start4(bl, bl, SC_AUTOSPELL, 100, skill_lv, sk->skill_id, max_lv, 0,
 		skill->get_time(SA_AUTOSPELL, skill_lv), SA_AUTOSPELL);
 }
 
@@ -18034,7 +18060,15 @@ static int skill_autospell_spell_selected(struct map_session_data *sd, uint16 sk
 	if (sk->autospell_level > autospell_lv)
 		return 0; // Don't have enough level to use
 
-	int max_lv = sk->skill_lv[autospell_lv - 1];
+	int max_lv;
+#ifndef RENEWAL
+	max_lv = sk->skill_lv[autospell_lv - 1];
+#else
+	max_lv = autospell_lv / 2;
+	if (max_lv == 0)
+		max_lv = 1;
+#endif
+
 	if (sd->sc.data[SC_SOULLINK] != NULL && sd->sc.data[SC_SOULLINK]->val2 == SL_SAGE) {
 		if (skill_id == MG_COLDBOLT || skill_id == MG_FIREBOLT || skill_id == MG_LIGHTNINGBOLT)
 			max_lv = 10; // Soul Linker bonus. [Skotlex]

src/map/skill.h

@@ -1873,7 +1873,9 @@ struct s_skill_db {
 struct autospell_skill {
 	int autospell_level;
 	int skill_id;
+#ifndef RENEWAL
 	int skill_lv[MAX_SKILL_LEVEL];
+#endif
 };
 
 struct s_skill_unit_layout {

src/map/status.c

@@ -7689,8 +7689,12 @@ static int status_change_start_sub(struct block_list *src, struct block_list *bl
 			case SC_AUTOSPELL:
 				//Val1 Skill LV of Autospell
 				//Val2 Skill ID to cast
-				//Val3 Max Lv to cast
-				val4 = 5 + val1*2; //Chance of casting
+				//Val3 Max Lv to cast (pre-re) / Lv to cast (zero)
+#ifndef RENEWAL
+				val4 = 5 + val1 * 2; // Chance of casting
+#else
+				val4 = 2 * val1; // Chance of casting
+#endif
 				break;
 			case SC_VOLCANO:
 #ifndef RENEWAL