From 6ecfee0a8a9a84ccb659bd41dfb9f108eeffb9e7 Mon Sep 17 00:00:00 2001
From: gumi <git@gumi.ca>
Date: Sat, 22 Aug 2020 09:49:32 -0400
Subject: add an IT_VIRTUAL item type for card groups

---
 src/emap/init.c   |  1 +
 src/emap/pc.c     | 23 +++++++++++++++++++++++
 src/emap/pc.h     |  5 +++++
 src/emap/script.c |  6 ++++++
 tools/vars.sh     |  5 ++++-
 5 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/src/emap/init.c b/src/emap/init.c
index 19eaea5..a4902ba 100644
--- a/src/emap/init.c
+++ b/src/emap/init.c
@@ -270,6 +270,7 @@ HPExport void plugin_init (void)
     addHookPre(battle, weapon_attack, ebattle_weapon_attack_pre);
     addHookPre(bg, team_warp, ebg_team_warp_pre);
     addHookPre(pc, can_Adopt, epc_can_Adopt_pre);
+    addHookPre(pc, additem, epc_additem_pre);
     addHookPre(pc, adoption, epc_adoption_pre);
     addHookPre(pc, readparam, epc_readparam_pre);
     addHookPre(pc, setparam, epc_setparam_pre);
diff --git a/src/emap/pc.c b/src/emap/pc.c
index d719173..68b892c 100644
--- a/src/emap/pc.c
+++ b/src/emap/pc.c
@@ -461,6 +461,29 @@ int epc_setnewpc_post(int retVal,
     return retVal;
 }
 
+int epc_additem_pre(struct map_session_data **sdPtr __attribute__ ((unused)),
+                    const struct item **item_dataPtr,
+                    int *amountPtr __attribute__ ((unused)),
+                    e_log_pick_type *log_typePtr __attribute__ ((unused)))
+{
+#ifndef IT_VIRTUAL
+    return 0;
+#endif
+
+    const struct item *item_data = *item_dataPtr;
+
+    if (item_data != NULL) {
+        struct item_data *data = itemdb->search(item_data->nameid);
+
+        if (data != NULL && data->type == IT_VIRTUAL) {
+            hookStop();
+            return 1;
+        }
+    }
+
+    return 0;
+}
+
 int epc_additem_post(int retVal,
                      struct map_session_data *sd,
                      const struct item *item_data,
diff --git a/src/emap/pc.h b/src/emap/pc.h
index db1a912..1cbd3c1 100644
--- a/src/emap/pc.h
+++ b/src/emap/pc.h
@@ -63,6 +63,11 @@ int epc_setnewpc_post(int retVal,
                       int sex,
                       int fd);
 
+int epc_additem_pre(struct map_session_data **sdPtr,
+                    const struct item **item_dataPtr,
+                    int *amountPtr,
+                    e_log_pick_type *log_typePtr);
+
 int epc_additem_post(int retVal,
                      struct map_session_data *sd,
                      const struct item *item_data,
diff --git a/src/emap/script.c b/src/emap/script.c
index d2a64e4..778ebe0 100644
--- a/src/emap/script.c
+++ b/src/emap/script.c
@@ -109,6 +109,12 @@ void escript_hardcoded_constants_pre(void)
     script->set_constant("NPCSUBTYPE_SCRIPT", SCRIPT, false, false);
     script->set_constant("NPCSUBTYPE_CASHSHOP", CASHSHOP, false, false);
     script->set_constant("NPCSUBTYPE_TOMB", TOMB, false, false);
+
+    // new item types
+#ifdef IT_VIRTUAL
+    script->set_constant("IT_VIRTUAL", IT_VIRTUAL, false, false);
+#endif
+
     script->constdb_comment(NULL);
     eskill_addskill_conststants();
 }
diff --git a/tools/vars.sh b/tools/vars.sh
index 3571999..1f5a596 100755
--- a/tools/vars.sh
+++ b/tools/vars.sh
@@ -13,6 +13,7 @@ OLD_SC_MAX=677 # in src/map/status.h
 OLD_MAX_SKILL_ID=10015 # in src/common/mmo.h
 OLD_MAX_SKILL_DB=1510 # in src/common/mmo.h
 OLD_MAX_SKILL_TREE=86 # in src/common/mmo.h
+OLD_IT_MAX=19 # in src/common/mmo.h
 
 # constants:
 EVOL_FIRST_SKILL=20000 # skills have to be saved to SQL so they shouldn't change ID
@@ -24,8 +25,10 @@ SC_MAX=$(($OLD_SC_MAX + $MAX_EVOL_SC))
 SI_MAX=$(($OLD_SI_MAX + $MAX_EVOL_SI))
 CUSTOM_SKILL_RANGES="{${EVOL_FIRST_SKILL},${MAX_SKILL_ID}},"
 MAX_SKILL_TREE=$(($OLD_MAX_SKILL_TREE + $MAX_EVOL_SKILLS))
+IT_VIRTUAL=$(($OLD_IT_MAX + 1))
+IT_MAX=$(($IT_VIRTUAL + 1))
 
 # can be used for custom skill id: 10016 - 10036
 
-export VARS=" -DOLD_SI_MAX=${OLD_SI_MAX} -DOLD_SC_MAX=${OLD_SC_MAX} -DOLD_MAX_SKILL_DB=${OLD_MAX_SKILL_DB} -DMAX_SKILL_DB=${MAX_SKILL_DB} -DMAX_SKILL_ID=${MAX_SKILL_ID} -DMAX_EVOL_SKILLS=${MAX_EVOL_SKILLS} -DEVOL_FIRST_SKILL=${EVOL_FIRST_SKILL} -DCUSTOM_SKILL_RANGES=\"${CUSTOM_SKILL_RANGES}\" -DMAX_SKILL_TREE=${MAX_SKILL_TREE} -DSC_MAX=${SC_MAX} -DSI_MAX=${SI_MAX} -DBASE_GUILD_SIZE=100 -DMIN_PACKET_DB=0x63 -DMAX_PACKET_DB=0x7531"
+export VARS=" -DOLD_SI_MAX=${OLD_SI_MAX} -DOLD_SC_MAX=${OLD_SC_MAX} -DOLD_MAX_SKILL_DB=${OLD_MAX_SKILL_DB} -DMAX_SKILL_DB=${MAX_SKILL_DB} -DMAX_SKILL_ID=${MAX_SKILL_ID} -DMAX_EVOL_SKILLS=${MAX_EVOL_SKILLS} -DEVOL_FIRST_SKILL=${EVOL_FIRST_SKILL} -DCUSTOM_SKILL_RANGES=\"${CUSTOM_SKILL_RANGES}\" -DMAX_SKILL_TREE=${MAX_SKILL_TREE} -DSC_MAX=${SC_MAX} -DSI_MAX=${SI_MAX} -DBASE_GUILD_SIZE=100 -DMIN_PACKET_DB=0x63 -DMAX_PACKET_DB=0x7531 -DIT_VIRTUAL=${IT_VIRTUAL} -DIT_MAX=${IT_MAX}"
 export CPPFLAGS="${VARS}"
-- 
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