From c3a6d07dc41cb4c8fc29655579b63e0e9e97433d Mon Sep 17 00:00:00 2001
From: Alexander Batalov <alex.batalov@gmail.com>
Date: Sat, 2 Sep 2023 16:24:07 +0300
Subject: [PATCH] Add target_find_free_subnode

---
 src/mapper/mp_targt.cc | 37 ++++++++++++++++++++++++++++++-----
 src/mapper/mp_targt.h  | 44 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+), 5 deletions(-)

diff --git a/src/mapper/mp_targt.cc b/src/mapper/mp_targt.cc
index c5f1cff..6d2a75a 100644
--- a/src/mapper/mp_targt.cc
+++ b/src/mapper/mp_targt.cc
@@ -6,6 +6,7 @@
 #include "game.h"
 #include "map.h"
 #include "mapper/mp_proto.h"
+#include "memory.h"
 #include "proto.h"
 #include "window_manager_private.h"
 
@@ -13,9 +14,14 @@ namespace fallout {
 
 #define TARGET_DAT "target.dat"
 
+typedef struct TargetNode {
+    TargetSubNode subnode;
+    struct TargetNode* next;
+} TargetNode;
+
 typedef struct TargetList {
-    int field_0;
-    int field_4;
+    TargetNode* tail;
+    int count;
     int field_8;
 } TargetList;
 
@@ -23,7 +29,7 @@ typedef struct TargetList {
 static char default_target_path_base[] = "\\fallout2\\dev\\proto\\";
 
 // 0x559CC4
-static TargetList targetlist = { 0 };
+static TargetList targetlist = { NULL, 0, 0 };
 
 // 0x559CD0
 static char* target_path_base = default_target_path_base;
@@ -126,13 +132,34 @@ int target_header_load()
         return -1;
     }
 
-    targetlist.field_0 = 0;
-    targetlist.field_4 = 0;
+    targetlist.tail = NULL;
+    targetlist.count = 0;
 
     fclose(stream);
     return 0;
 }
 
+// 0x49B9C0
+int target_find_free_subnode(TargetSubNode** subnode_ptr)
+{
+    TargetNode* node = (TargetNode*)internal_malloc(sizeof(TargetNode));
+    if (node == NULL) {
+        *subnode_ptr = NULL;
+        return -1;
+    }
+
+    *subnode_ptr = &(node->subnode);
+
+    node->subnode.field_0 = -1;
+    node->subnode.field_28 = 0;
+    node->next = targetlist.tail;
+
+    targetlist.tail = node;
+    targetlist.count++;
+
+    return 0;
+}
+
 // 0x49BD98
 int pick_rot()
 {
diff --git a/src/mapper/mp_targt.h b/src/mapper/mp_targt.h
index af47cc9..2769cc4 100644
--- a/src/mapper/mp_targt.h
+++ b/src/mapper/mp_targt.h
@@ -3,6 +3,49 @@
 
 namespace fallout {
 
+typedef struct TargetSubNode {
+    int field_0;
+    int field_4;
+    int field_8;
+    int field_C;
+    int field_10;
+    int field_14;
+    int field_18;
+    int field_1C;
+    int field_20;
+    int field_24;
+    int field_28;
+    int field_2C;
+    int field_30;
+    int field_34;
+    int field_38;
+    int field_3C;
+    int field_40;
+    int field_44;
+    int field_48;
+    int field_4C;
+    int field_50;
+    int field_54;
+    int field_58;
+    int field_5C;
+    int field_60;
+    int field_64;
+    int field_68;
+    int field_6C;
+    int field_70;
+    int field_74;
+    int field_78;
+    int field_7C;
+    int field_80;
+    int field_84;
+    int field_88;
+    int field_8C;
+    int field_90;
+    int field_94;
+    int field_98;
+    int field_9C;
+} TargetSubNode;
+
 void target_override_protection();
 bool target_overriden();
 void target_make_path(char* path, int pid);
@@ -10,6 +53,7 @@ int target_init();
 int target_exit();
 int target_header_save();
 int target_header_load();
+int target_find_free_subnode(TargetSubNode** subnode_ptr);
 int pick_rot();
 int target_pick_global_var(int* value_ptr);
 int target_pick_map_var(int* value_ptr);