ESP: render damage tags as small left-side labels

Draw ARM/VULN/IMM on the left edge of the box with a 10px font and a black
1px shadow, instead of full-size text above the name. The small font is a
second HFont created next to the 16px body font.

CONTEXT: document the DrawModel argument fix and the tag styling.

3 files changed, 35 insertions, 5 deletions

diff --git a/src/esp.cpp b/src/esp.cpp
index aa9f645..51f46bc 100644
--- a/src/esp.cpp
+++ b/src/esp.cpp
@@ -1573,18 +1573,26 @@ void esp_draw() {
       const char *tag = nullptr;
       int tr = 255, tg = 255, tb = 255;
       if (t.damage == NPC_DMG_ARMORED) {
-        tag = "ARMORED";
+        tag = "ARM";
         tr = 255; tg = 170; tb = 60;
       } else if (t.damage == NPC_DMG_VULNERABLE) {
         tag = "VULN";
         tr = 90; tg = 220; tb = 255;
       } else if (t.damage == NPC_DMG_IMMUNE) {
-        tag = "IMMUNE";
+        tag = "IMM";
         tr = 180; tg = 180; tb = 180;
       }
-      if (tag)
-        draw_text_col(left, top - (esp_option(ESP_OPT_SHOW_NAME) ? 28 : 14),
-                      tag, tr, tg, tb);
+      if (tag) {
+        // Small label on the left edge of the box, black 1px shadow for
+        // readability against the world (the 10px ESP font).
+        int tw = (int)strlen(tag) * 6;
+        int tx = left - tw - 3;
+        if (tx < 2)
+          tx = 2;
+        int ty = top + 2;
+        draw_text_small_col(tx + 1, ty + 1, tag, 0, 0, 0);
+        draw_text_small_col(tx, ty, tag, tr, tg, tb);
+      }
     }
   }
 
diff --git a/src/hl2h.h b/src/hl2h.h
index 287563c..e35e737 100644
--- a/src/hl2h.h
+++ b/src/hl2h.h
@@ -297,6 +297,7 @@ void silentaim_reset_lock();
 void *entitylist_get(int idx);
 int engine_get_local_player();
 void draw_text_col(int x, int y, const char *s, int r, int g, int b);
+void draw_text_small_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();
diff --git a/src/menu.cpp b/src/menu.cpp
index eb1075a..00aa189 100644
--- a/src/menu.cpp
+++ b/src/menu.cpp
@@ -683,6 +683,7 @@ using HFont = unsigned long;
 
 ISurface *g_surface = nullptr;
 static HFont g_font = 0;
+static HFont g_font_small = 0;
 
 // VGUI_Surface030 vtable slots (confirmed via binary disassembly of vguimatsurface.so):
 //  8 = PushMakeCurrent(VPANEL, bool useInsets) — reads args at 0xc/0x10(%ebp)
@@ -778,6 +779,16 @@ void draw_text_col(int x, int y, const char *text, int r, int g, int b) {
   surf_draw_print_text(wtext, (int)wcslen(wtext));
 }
 
+void draw_text_small_col(int x, int y, const char *text, int r, int g, int b) {
+  wchar_t wtext[256];
+  mbstowcs(wtext, text, 255);
+  wtext[255] = 0;
+  surf_draw_set_text_font(g_font_small ? g_font_small : g_font);
+  surf_draw_set_text_color(r, g, b, 255);
+  surf_draw_set_text_pos(x, y);
+  surf_draw_print_text(wtext, (int)wcslen(wtext));
+}
+
 // ---------------------------------------------------------------------------
 // mat_fullbright
 // ---------------------------------------------------------------------------
@@ -849,6 +860,7 @@ void outer_draw() {
   }
   if (font_reset && g_font) {
     g_font = 0;
+    g_font_small = 0;
     logd("font: reset (local entity change)");
   }
 
@@ -858,6 +870,7 @@ void outer_draw() {
         "Liberation Sans", "DejaVu Sans", "Noto Sans", "Tahoma",
         "Verdana",         "Arial",      nullptr};
     bool font_ok = false;
+    const char *chosen = nullptr;
     for (int fi = 0; families[fi] && !font_ok; fi++) {
       g_font = surf_create_font();
       if (!g_font)
@@ -866,10 +879,18 @@ void outer_draw() {
                                   0x20, 0xFF)) {
         logd("outer_draw: font family %s", families[fi]);
         font_ok = true;
+        chosen = families[fi];
       } else {
         g_font = 0;
       }
     }
+    if (font_ok && chosen && !g_font_small) {
+      g_font_small = surf_create_font();
+      if (g_font_small &&
+          !surf_set_font_glyph_set(g_font_small, chosen, 10, 400, 0, 0, 0x400,
+                                   0x20, 0xFF))
+        g_font_small = 0;
+    }
     if (!font_ok) {
       logf("outer_draw: no usable font");
       toastf(TOAST_ERROR, "No usable overlay font");