ESP: finish the split into entity, combat, item and projectile units

esp.cpp keeps the scan and drawing (~1000 lines, down from 3665). Entity
lookups and NPC classification move to entity_query.cpp together with the
per-map caches and the session reset; combat (aimbot, silent aim, melee,
spread, triggerbot) moves to combat.cpp. Shared helpers are declared in
esp_internal.h.

1 files changed, 23 insertions, 0 deletions

diff --git a/src/esp_internal.h b/src/esp_internal.h
index 6e66f42..1ffdd7a 100644
--- a/src/esp_internal.h
+++ b/src/esp_internal.h
@@ -11,6 +11,29 @@
 
 extern int g_scr_w, g_scr_h;
 
+enum { LIFE_ALIVE = 0 };
+enum NpcDamageClass {
+  NPC_DMG_NORMAL = 0,
+  NPC_DMG_ARMORED,    // only blast damage (RPG) hurts it
+  NPC_DMG_VULNERABLE, // gravity gun / physics damage works well
+  NPC_DMG_IMMUNE      // m_takedamage says no damage at all
+};
+
+bool is_npc_class(const char *name);
+bool npc_is_friendly(int idx, const char *model, int local_idx, bool &neutral);
+bool npc_can_be_damaged(int idx, const char *model);
+int npc_damage_class(int idx, const char *model);
+QAngle angle_to(const Vector &from, const Vector &to);
+bool punch_angles(float &px, float &py);
+int entptr_lookup(void *ent);
+void entptr_store(void *ent, int idx);
+void weapon_short_name(int idx, char *out, size_t outn);
+void short_name(const char *model, char *out, size_t outn);
+
+// Listen-server sanity latch, shared with esp_collect().
+extern bool g_srv_checked;
+extern bool g_srv_trusted;
+
 double esp_now();
 bool esp_update_screen();