World: add Fullbright visual feature

- New Visuals card with the usual Active + Bind; default off. Unbound+Active
  is always-on, a bind makes it hold-to-brighten.
- Resolve VEngineCvar004 and set mat_fullbright 1/0 through FindVar (slot 12)
  and ConVar::SetValue(int) (slot 11), bypassing the console cheat gate.
  Fall back to ClientCmd if the cvar interface is unavailable.
- Reapply after map loads/respawns and persist [fullbright] active/bind.
- Log on/off; show an error toast if the cvar cannot be applied.

1 files changed, 9 insertions, 1 deletions

diff --git a/src/menu.cpp b/src/menu.cpp
index 2d4c660..0c022e4 100644
--- a/src/menu.cpp
+++ b/src/menu.cpp
@@ -45,6 +45,7 @@ FeatureState g_aimbot{true, 604}; // default Mouse5, rebindable in the GUI
 FeatureState g_triggerbot{true, 603}; // default Mouse4
 FeatureState g_silentaim{true, 602}; // default Mouse3
 FeatureState g_item_esp{true, 0}; // valuable item tags, always-on by default
+FeatureState g_fullbright{false, 0}; // mat_fullbright world lighting
 bool g_item_health = true;
 bool g_item_ammo = true;
 bool g_item_armor = true;
@@ -184,6 +185,8 @@ void config_save() {
           g_triggerbot.bind);
   fprintf(f, "[silentaim]\nactive=%d\nbind=%d\nfov=%d\n", g_silentaim.active,
           g_silentaim.bind, g_silent_fov);
+  fprintf(f, "[fullbright]\nactive=%d\nbind=%d\n", g_fullbright.active,
+          g_fullbright.bind);
   fprintf(f, "[items]\nactive=%d\nbind=%d\nhealth=%d\nammo=%d\n"
              "armor=%d\nweapons=%d\ncrates=%d\ndistance=%d\nmax_dist=%d\n",
           g_item_esp.active, g_item_esp.bind, (int)g_item_health,
@@ -235,6 +238,8 @@ static bool config_load() {
         cur = &g_esp;
       else if (strstr(line, "[items]"))
         cur = &g_item_esp;
+      else if (strstr(line, "[fullbright]"))
+        cur = &g_fullbright;
       else if (strstr(line, "[aimbot]"))
         cur = &g_aimbot;
       else if (strstr(line, "[triggerbot]"))
@@ -372,6 +377,7 @@ void config_reset_defaults() {
   for (int i = 0; i < ESP_OPT_COUNT; i++)
     g_esp_opt[i] = true;
   g_item_esp = {true, 0};
+  g_fullbright = {false, 0};
   g_item_health = true;
   g_item_ammo = true;
   g_item_armor = true;
@@ -488,7 +494,8 @@ static bool key_held(int sc) {
 static FeatureState *feature_state(int feature) {
   static FeatureState *feats[FEAT_COUNT] = {
       &g_bhop,    &g_abh,        &g_esp,        &g_aimbot, &g_triggerbot,
-      &g_silentaim, &g_jumpbug,  &g_melee,      &g_spread, &g_item_esp};
+      &g_silentaim, &g_jumpbug,  &g_melee,      &g_spread, &g_item_esp,
+      &g_fullbright};
   if (feature < 0 || feature >= FEAT_COUNT)
     return nullptr;
   return feats[feature];
@@ -658,6 +665,7 @@ void draw_text_col(int x, int y, const char *text, int r, int g, int b) {
 // PushMakeCurrent/PopMakeCurrent so they are submitted with a clean clip.
 void outer_draw() {
   poll_keyboard();
+  fullbright_update();
   gui_handle_input();
   // HL2H_DRAW_TEST=1 draws a probe rect without needing the GUI open
   static bool draw_test = getenv("HL2H_DRAW_TEST") != nullptr;