World tint: colour dynamic props through m_clrRender

Prop model materials (VertexLitGeneric) ignore IMaterial::ColorModulate: the
engine feeds StudioRender the per-entity render colour (m_clrRender) on every
draw, so the material-side tint never showed on crates and other props.

Resolve m_clrRender from DT_BaseEntity and, every 10 ms while World tint and
Props are enabled, write the prop colour into every entity whose model is
under models/props. Restore white once when disabled.

4 files changed, 56 insertions, 2 deletions

diff --git a/src/esp.cpp b/src/esp.cpp
index 50d7b5d..9d041b0 100644
--- a/src/esp.cpp
+++ b/src/esp.cpp
@@ -1405,6 +1405,55 @@ bool triggerbot_apply(CUserCmd *cmd) {
   return false;
 }
 
+// Tints dynamic props by writing their client render colour. StudioRender
+// uses m_clrRender as the per-model colour modulation, which is why changing
+// the prop MATERIAL colour had no effect.
+void prop_tint_update() {
+  static bool applied = false;
+  static bool logged_missing = false;
+  static bool logged_touched = false;
+  bool on = feature_active(FEAT_WORLD_TINT) && g_tint_prop_on;
+  if (!on && !applied)
+    return;
+  if (!g_iface.entitylist || g_net.clr_render < 0) {
+    if (on && !logged_missing) {
+      logged_missing = true;
+      logf("prop tint: m_clrRender unavailable");
+    }
+    return;
+  }
+  static double last = 0.0;
+  double now = esp_now();
+  if (on && now - last < 0.01)
+    return;
+  last = now;
+
+  using Fn = int (*)(void *);
+  int hi = vfunc<Fn>(g_iface.entitylist, 6)(g_iface.entitylist);
+  if (hi < 0 || hi > 4096)
+    hi = 4096;
+  uint32_t col =
+      on ? ((uint32_t)g_tint_prop_rgb[0] | ((uint32_t)g_tint_prop_rgb[1] << 8) |
+            ((uint32_t)g_tint_prop_rgb[2] << 16) | (255u << 24))
+         : 0xFFFFFFFFu;
+  int touched = 0;
+  for (int idx = 1; idx <= hi; idx++) {
+    void *ent = entitylist_get(idx);
+    if (!ent)
+      continue;
+    const char *model = entity_model_name(ent);
+    if (!model || strncmp(model, "models/props", 12) != 0)
+      continue;
+    *(uint32_t *)((uintptr_t)ent + (uintptr_t)g_net.clr_render) = col;
+    touched++;
+  }
+  applied = on;
+  if (on && touched > 0 && !logged_touched) {
+    logged_touched = true;
+    logf("prop tint: %d prop entities", touched);
+  }
+}
+
 void esp_draw() {
   if (!g_surface || !g_iface.entitylist || !g_net.esp_ok()) return;
   if (!g_scr_w) {
diff --git a/src/hl2h.h b/src/hl2h.h
index fd7a863..779a241 100644
--- a/src/hl2h.h
+++ b/src/hl2h.h
@@ -96,6 +96,7 @@ struct NetVars {
   int activeweapon = -1; // client m_hActiveWeapon handle
   int owner = -1;        // client m_hOwnerEntity handle
   int weapon_owner = -1; // client m_hOwner handle (C_BaseCombatWeapon)
+  int clr_render = -1;   // client m_clrRender (entity render colour)
   // ponytail: mins/maxs may be absent from some HL2 netvar tables; esp.cpp falls back to h=72
   bool ok() const { return flags >= 0 && velocity >= 0 && movetype >= 0; }
   // ponytail: m_iMaxHealth isn't a netvar in HL2 SP; esp.cpp falls back to 100.
@@ -296,6 +297,7 @@ int engine_get_local_player();
 void draw_text_col(int x, int y, const char *s, int r, int g, int b);
 void esp_draw();
 void esp_draw_items();
+void prop_tint_update();
 bool world_to_screen(const Vector &w, float &sx, float &sy);
 void set_silent_restore(const QAngle &angles);
 bool is_visible(const Vector &eye, const Vector &point,
diff --git a/src/menu.cpp b/src/menu.cpp
index 7ffc84a..0ce6c05 100644
--- a/src/menu.cpp
+++ b/src/menu.cpp
@@ -815,6 +815,7 @@ void outer_draw() {
   poll_keyboard();
   fullbright_update();
   world_tint_update();
+  prop_tint_update();
   fog_update();
   gui_handle_input();
   // HL2H_DRAW_TEST=1 draws a probe rect without needing the GUI open
diff --git a/src/netvars.cpp b/src/netvars.cpp
index 238af70..4578e52 100644
--- a/src/netvars.cpp
+++ b/src/netvars.cpp
@@ -92,6 +92,8 @@ static void collect_netvars(uintptr_t table, uintptr_t base_off, int depth) {
     } else if (strcmp(pname2, "m_hActiveWeapon") == 0 &&
                g_net.activeweapon < 0) {
       g_net.activeweapon = (int)(base_off + (uint32_t)poff);
+    } else if (strcmp(pname2, "m_clrRender") == 0 && g_net.clr_render < 0) {
+      g_net.clr_render = (int)(base_off + (uint32_t)poff);
     } else if (strcmp(pname2, "m_iTeamNum") == 0 && g_net.teamnum < 0) {
       g_net.teamnum = (int)(base_off + (uint32_t)poff);
     } else if (strcmp(pname2, "m_vecOrigin") == 0 && g_net.origin < 0) {
@@ -273,9 +275,9 @@ void resolve_netvars() {
   logf("netvars: flags=%d velocity=%d movetype=%d health=%d maxhealth=%d "
        "teamnum=%d origin=%d viewoffset=%d mins=%d maxs=%d lifeste=%d "
        "modelindex=%d absvelocity=%d activeweapon=%d owner=%d "
-       "weapon_owner=%d",
+       "weapon_owner=%d clr_render=%d",
        g_net.flags, g_net.velocity, g_net.movetype, g_net.health,
        g_net.maxhealth, g_net.teamnum, g_net.origin, g_net.viewoffset,
        g_net.mins, g_net.maxs, g_net.lifestate, g_net.modelindex,
-       g_net.absvelocity, g_net.activeweapon);
+       g_net.absvelocity, g_net.activeweapon, g_net.clr_render);
 }