Melee killbot: 360-degree crowbar silent aim

- New feature (default on): while the local player's active weapon is the
  crowbar, pick the nearest visible hostile NPC within the 75-unit crowbar
  range, sorted by distance to its collision AABB, and attack it through the
  normal silent-aim path (usercmd view + IN_ATTACK, movement preserved,
  rendered view restored at FRAME_RENDER_START).
- Prefer the nearest visible hitbox center; fall back to the AABB center /
  closest point when bones are unavailable. Reuses the existing friendly /
  neutral and life-state filters and the world-only vischeck.
- Detect the active weapon from the client m_hActiveWeapon handle, with the
  authoritative server m_hActiveWeapon handle as a fallback (client entity
  index from the low 16 bits).
- While the crowbar is active and this feature is on, skip the gun aimbot,
  triggerbot and silent aim so they do not fight over the usercmd view.
- Menu: Melee killbot -> Active; config [melee] active=...

1 files changed, 17 insertions, 8 deletions

diff --git a/src/menu.cpp b/src/menu.cpp
index 8df67fe..f590d69 100644
--- a/src/menu.cpp
+++ b/src/menu.cpp
@@ -64,6 +64,7 @@ static bool g_bhop_autostrafe = true;
 static FeatureState g_abh{true, 0};
 static FeatureState g_jumpbug{true, 0};
 static bool g_jumpbug_assist = false;
+static FeatureState g_melee{true, 0};
 static FeatureState g_esp{true, 0};
 static FeatureState g_aimbot{true, 604}; // default Mouse5, rebindable in menu
 static FeatureState g_triggerbot{true, 603}; // default Mouse4
@@ -101,6 +102,8 @@ static MenuNode g_abh_active{NODE_TOGGLE, "Active", false, 0, {}, &g_abh.active,
 static MenuNode g_jumpbug_feat{NODE_FEATURE, "Jumpbug", false, 1, {}, nullptr, nullptr, nullptr};
 static MenuNode g_jumpbug_active{NODE_TOGGLE, "Active", false, 0, {}, &g_jumpbug.active, nullptr, nullptr};
 static MenuNode g_jumpbug_assist_node{NODE_TOGGLE, "Assist timing", false, 0, {}, &g_jumpbug_assist, nullptr, nullptr};
+static MenuNode g_melee_feat{NODE_FEATURE, "Melee killbot", false, 1, {}, nullptr, nullptr, nullptr};
+static MenuNode g_melee_active{NODE_TOGGLE, "Active", false, 0, {}, &g_melee.active, nullptr, nullptr};
 static MenuNode g_esp_feat{NODE_FEATURE, "ESP", false, 1, {}, nullptr, nullptr, nullptr};
 static MenuNode g_esp_active{NODE_TOGGLE, "Active", false, 0, {}, &g_esp.active, nullptr, nullptr};
 static MenuNode g_esp_opt_nodes[ESP_OPT_COUNT] = {
@@ -156,6 +159,8 @@ static void build_tree() {
   g_jumpbug_feat.children[0] = &g_jumpbug_active;
   g_jumpbug_feat.children[1] = &g_jumpbug_assist_node;
   g_jumpbug_feat.child_count = 2;
+  g_melee_feat.children[0] = &g_melee_active;
+  g_melee_feat.child_count = 1;
   g_esp_feat.children[0] = &g_esp_active;
   g_aimbot_feat.children[0] = &g_aimbot_active;
   g_aimbot_feat.children[1] = &g_aimbot_bind;
@@ -181,11 +186,12 @@ static void build_tree() {
   g_root.children[0] = &g_bhop_feat;
   g_root.children[1] = &g_abh_feat;
   g_root.children[2] = &g_jumpbug_feat;
-  g_root.children[3] = &g_esp_feat;
-  g_root.children[4] = &g_aimbot_feat;
-  g_root.children[5] = &g_triggerbot_feat;
-  g_root.children[6] = &g_silentaim_feat;
-  g_root.child_count = 7;
+  g_root.children[3] = &g_melee_feat;
+  g_root.children[4] = &g_esp_feat;
+  g_root.children[5] = &g_aimbot_feat;
+  g_root.children[6] = &g_triggerbot_feat;
+  g_root.children[7] = &g_silentaim_feat;
+  g_root.child_count = 8;
 }
 
 static int g_depth[48]; // depth of each visible row (for indentation)
@@ -309,6 +315,7 @@ static void config_save() {
   fprintf(f, "[abh]\nactive=%d\nbind=%d\n", g_abh.active, g_abh.bind);
   fprintf(f, "[jumpbug]\nactive=%d\nassist=%d\n", g_jumpbug.active,
           (int)g_jumpbug_assist);
+  fprintf(f, "[melee]\nactive=%d\n", g_melee.active);
   fprintf(f, "[aimbot]\nactive=%d\nbind=%d\nsmooth=%d\nvischeck=%d\n"
              "fov=%d\nfov_circle=%d\n"
              "bone_head=%d\nbone_torso=%d\nbone_larm=%d\nbone_rarm=%d\n"
@@ -349,6 +356,8 @@ static void config_load() {
         cur = &g_abh;
       else if (strstr(line, "[jumpbug]"))
         cur = &g_jumpbug;
+      else if (strstr(line, "[melee]"))
+        cur = &g_melee;
       else if (strstr(line, "[esp]"))
         cur = &g_esp;
       else if (strstr(line, "[aimbot]"))
@@ -537,10 +546,10 @@ static bool key_pressed(int sc) {
 // feature gate queried from hl2h.cpp do_move(): feature must be Active AND
 // its bind key held (always-on when unbound).
 static FeatureState *feature_state(int feature) {
-  static FeatureState *feats[7] = {&g_bhop,   &g_abh,        &g_esp,
+  static FeatureState *feats[8] = {&g_bhop,   &g_abh,        &g_esp,
                                    &g_aimbot, &g_triggerbot, &g_silentaim,
-                                   &g_jumpbug};
-  if (feature < 0 || feature > 6)
+                                   &g_jumpbug, &g_melee};
+  if (feature < 0 || feature > 7)
     return nullptr;
   return feats[feature];
 }