From dbc45c0817f35457dcffc0009fe74982c93924f8 Mon Sep 17 00:00:00 2001
From: Zlorthishen <79779913+Zlorthishen@users.noreply.github.com>
Date: Tue, 1 Oct 2024 17:34:29 -0500
Subject: [PATCH] initial commit

https: //github.com/CleverRaven/Cataclysm-DDA/pull/66996
Co-Authored-By: anoobindisguise <56016372+anoobindisguise@users.noreply.github.com>
---
 data/json/bionics.json |  3 ++-
 src/bionics.cpp        | 21 +++++++++++++++++++++
 src/bionics.h          |  5 +++++
 src/item.cpp           |  7 +++++++
 4 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/data/json/bionics.json b/data/json/bionics.json
index e6008da202e5..913ca83862aa 100644
--- a/data/json/bionics.json
+++ b/data/json/bionics.json
@@ -526,7 +526,8 @@
     "flags": [ "BIONIC_TOGGLED", "BIONIC_NPC_USABLE" ],
     "act_cost": "10 kJ",
     "react_cost": "10 kJ",
-    "time": 1
+    "time": 1,
+    "required_bionic": "bio_weight"
   },
   {
     "id": "bio_infolink",
diff --git a/src/bionics.cpp b/src/bionics.cpp
index 3fdf8473a66d..4c18a5961354 100644
--- a/src/bionics.cpp
+++ b/src/bionics.cpp
@@ -313,6 +313,7 @@ void bionic_data::load( const JsonObject &jsobj, const std::string &src )
     assign( jsobj, "enchantments", enchantments, strict );
     assign_map_from_array( jsobj, "learned_spells", learned_spells, strict );
     assign( jsobj, "included_bionics", included_bionics, strict );
+    assign( jsobj, "required_bionic", required_bionic, strict );
     assign( jsobj, "upgraded_bionic", upgraded_bionic, strict );
     assign( jsobj, "available_upgrades", available_upgrades, strict );
     assign( jsobj, "flags", flags, strict );
@@ -410,6 +411,14 @@ void bionic_data::check() const
             rep.warn( "upgrades undefined bionic \"%s\"", upgraded_bionic.str() );
         }
     }
+    if( required_bionic ) {
+        if(required_bionic == id ) {
+            rep.warn( "The CBM %s requires itself as a prerequisite for installation", required_bionic.str());
+        } else if( !required_bionic.is_valid() ) {
+            rep.warn("The CBM %s requires undefined bionic %s", id.str(), required_bionic.str());
+        }
+    }
+
     for( const bionic_id &it : available_upgrades ) {
         if( !it.is_valid() ) {
             rep.warn( "specifies unknown upgrade \"%s\"", it.str() );
@@ -2036,6 +2045,13 @@ bool Character::can_uninstall_bionic( const bionic_id &b_id, player &installer,
         }
     }
 
+    for (const bionic_id &bid : get_bionics()) {
+        if (bid->required_bionic && bid->required_bionic == b_id) {
+            popup(_("%s cannot be removed because installed bionic %s requires it."),
+                b_id->name, bid->name);
+        }
+    }
+
     if( b_id == bio_eye_optic ) {
         popup( _( "The Telescopic Lenses are part of %s eyes now.  Removing them would leave %s blind." ),
                disp_name( true ), disp_name() );
@@ -2279,6 +2295,11 @@ bool Character::can_install_bionics( const itype &type, player &installer, bool
     }
     int chance_of_success = bionic_manip_cos( adjusted_skill, difficult );
 
+    if (bioid->required_bionic && !has_bionic(bioid->required_bionic)) {
+        popup(_("CBM requires prior installation of %s."), bioid->required_bionic.obj().name );
+        return false;
+    }
+
     std::vector<std::string> conflicting_muts;
     for( const trait_id &mid : bioid->canceled_mutations ) {
         if( has_trait( mid ) ) {
diff --git a/src/bionics.h b/src/bionics.h
index 78208bfb99c5..a3a478383162 100644
--- a/src/bionics.h
+++ b/src/bionics.h
@@ -134,6 +134,11 @@ struct bionic_data {
      * Upgrades available for this bionic (opposite to @ref upgraded_bionic).
      */
     std::set<bionic_id> available_upgrades;
+    /**
+     * Id of another bionic which this bionic needs to have installed to be installed.
+     * Also prevents that bionic from being removed while this bionic is installed.
+     */
+    bionic_id required_bionic;
 
     std::set<flag_id> flags;
     bool has_flag( const flag_id &flag ) const;
diff --git a/src/item.cpp b/src/item.cpp
index 6daf7c5bd204..c4fd3729ba8c 100644
--- a/src/item.cpp
+++ b/src/item.cpp
@@ -3382,6 +3382,13 @@ void item::bionic_info( std::vector<iteminfo> &info, const iteminfo_query *parts
 
     insert_separation_line( info );
 
+    if (bid->required_bionic) {
+        info.emplace_back("CBM", string_format("* This CBM requires another CBM to also be installed: %s",
+            bid->required_bionic->name));
+    }
+
+    insert_separation_line(info);
+
     if( !bid->encumbrance.empty() ) {
         info.emplace_back( "DESCRIPTION", _( "<bold>Encumbrance</bold>: " ),
                            iteminfo::no_newline );