Make InterruptCast can be grouped by levels

3 files changed, 41 insertions, 11 deletions

diff --git a/src/map/skill.c b/src/map/skill.c
index 8be97842e..5ac1bdf71 100644
--- a/src/map/skill.c
+++ b/src/map/skill.c
@@ -539,14 +539,26 @@ static int skill_get_inf2(int skill_id)
 	return skill->dbs->db[idx].inf2;
 }
 
-static int skill_get_castcancel(int skill_id)
+/**
+ * Gets a skill's cast interruptibility by its ID and level.
+ *
+ * @param skill_id The skill's ID.
+ * @param skill_lv The skill's level.
+ * @return The skill's cast interruptibility corresponding to the passed level. Defaults to 0 in case of error.
+ *
+ **/
+static int skill_get_castcancel(int skill_id, int skill_lv)
 {
-	int idx;
 	if (skill_id == 0)
 		return 0;
-	idx = skill->get_index(skill_id);
+
+	Assert_ret(skill_lv > 0);
+
+	int idx = skill->get_index(skill_id);
+
 	Assert_ret(idx != 0);
-	return skill->dbs->db[idx].castcancel;
+
+	return skill->dbs->db[idx].castcancel[skill_get_lvl_idx(skill_lv)];
 }
 
 static int skill_get_maxcount(int skill_id, int skill_lv)
@@ -20923,12 +20935,29 @@ static void skill_validate_interrupt_cast(struct config_setting_t *conf, struct
 	nullpo_retv(conf);
 	nullpo_retv(sk);
 
-	sk->castcancel = 0;
+	skill->level_set_value(sk->castcancel, 0);
+
+	struct config_setting_t *t = libconfig->setting_get_member(conf, "InterruptCast");
+
+	if (t != NULL && config_setting_is_group(t)) {
+		for (int i = 0; i < MAX_SKILL_LEVEL; i++) {
+			char lv[6]; // Big enough to contain "Lv999" in case of custom MAX_SKILL_LEVEL.
+			safesnprintf(lv, sizeof(lv), "Lv%d", i + 1);
+			int interrupt_cast;
+
+			if (libconfig->setting_lookup_bool(t, lv, &interrupt_cast) == CONFIG_TRUE)
+				sk->castcancel[i] = (interrupt_cast != 0) ? 1 : 0;
+		}
+
+		return;
+	}
 
 	int interrupt_cast;
 
-	if (libconfig->setting_lookup_bool(conf, "InterruptCast", &interrupt_cast) == CONFIG_TRUE)
-		sk->castcancel = (interrupt_cast != 0) ? 1 : 0;
+	if (libconfig->setting_lookup_bool(conf, "InterruptCast", &interrupt_cast) == CONFIG_TRUE) {
+		if (interrupt_cast != 0)
+			skill->level_set_value(sk->castcancel, 1);
+	}
 }
 
 /**
diff --git a/src/map/skill.h b/src/map/skill.h
index af8f3774b..598917f2a 100644
--- a/src/map/skill.h
+++ b/src/map/skill.h
@@ -1764,7 +1764,8 @@ struct s_skill_db {
 	int fixed_cast[MAX_SKILL_LEVEL];
 #endif
 	int upkeep_time[MAX_SKILL_LEVEL],upkeep_time2[MAX_SKILL_LEVEL],cooldown[MAX_SKILL_LEVEL];
-	int castcancel,cast_def_rate;
+	int castcancel[MAX_SKILL_LEVEL];
+	int cast_def_rate;
 	int inf2;
 	int maxcount[MAX_SKILL_LEVEL];
 	int skill_type[MAX_SKILL_LEVEL];
@@ -1997,7 +1998,7 @@ struct skill_interface {
 	int (*get_ammo_qty) (int skill_id, int skill_lv);
 	int (*get_unit_id) (int skill_id, int flag);
 	int (*get_inf2) (int skill_id);
-	int (*get_castcancel) (int skill_id);
+	int (*get_castcancel) (int skill_id, int skill_lv);
 	int (*get_maxcount) (int skill_id, int skill_lv);
 	int (*get_blewcount) (int skill_id, int skill_lv);
 	int (*get_unit_flag) (int skill_id);
diff --git a/src/map/unit.c b/src/map/unit.c
index 53e517045..223a4a82b 100644
--- a/src/map/unit.c
+++ b/src/map/unit.c
@@ -1152,7 +1152,7 @@ static int unit_stop_walking(struct block_list *bl, int flag)
 static int unit_skilluse_id(struct block_list *src, int target_id, uint16 skill_id, uint16 skill_lv)
 {
 	int casttime = skill->cast_fix(src, skill_id, skill_lv);
-	int castcancel = skill->get_castcancel(skill_id);
+	int castcancel = skill->get_castcancel(skill_id, skill_lv);
 	int ret = unit->skilluse_id2(src, target_id, skill_id, skill_lv, casttime, castcancel);
 	struct map_session_data *sd = BL_CAST(BL_PC, src);
 
@@ -1790,7 +1790,7 @@ static int unit_skilluse_id2(struct block_list *src, int target_id, uint16 skill
 static int unit_skilluse_pos(struct block_list *src, short skill_x, short skill_y, uint16 skill_id, uint16 skill_lv)
 {
 	int casttime = skill->cast_fix(src, skill_id, skill_lv);
-	int castcancel = skill->get_castcancel(skill_id);
+	int castcancel = skill->get_castcancel(skill_id, skill_lv);
 	int ret = unit->skilluse_pos2(src, skill_x, skill_y, skill_id, skill_lv, casttime, castcancel);
 	struct map_session_data *sd = BL_CAST(BL_PC, src);