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.

1 files changed, 49 insertions, 0 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) {