Redesign of animation queue for unreal, add get_tangibles_near to drivenengine

luprex/cpp/core/drivenengine.hpp

@@ -52,8 +52,10 @@
 #include "util.hpp"
 #include "streambuffer.hpp"
 #include "enginewrapper.hpp"
+#include "planemap.hpp"
 
 class DrivenEngine;
+class World;
 using UniqueDrivenEngine = std::unique_ptr<DrivenEngine>;
 using DrivenEngineMaker = UniqueDrivenEngine (*)();
 using DrivenEngineInitializer = void (*)();
@@ -222,6 +224,14 @@ public:
     //
     void rescan_lua_source();
 
+    // Set the world pointer and the actor ID.
+    //
+    // This allows the graphics engine to query the DrivenEngine
+    // about the state of the world and the player.  It is legal to set these
+    // to zero, in which case queries will return null results.
+    //
+    void set_visible_world_and_actor(World *w, int64_t actor);
+    
     // Stop the driver.  The engine should call this when it's done
     // and there's nothing left to do.
     //
@@ -270,6 +280,8 @@ public:
     double drv_get_clock() const;
     bool drv_get_rescan_lua_source() const;
     bool drv_get_stop_driver() const;
+    uint64_t drv_get_actor_id() const;
+    void drv_get_tangibles_near(uint64_t tanid, double rx, double ry, double rz, uint32_t *count, int64_t **ids);
 
     void drv_initialize(uint32_t srcpklen, const char *srcpk, int argc, char **argv);
     void drv_clear_new_outgoing();
@@ -279,7 +291,7 @@ public:
     uint32_t drv_notify_accept(uint32_t port);
     void drv_invoke_event_update(double clock);
     void drv_set_lua_source(uint32_t srcpklen, const char *srcpk);
-    
+        
 private:
     // Find a currently-unused channel ID.  Channel IDs
     // are small integers that are reused.
@@ -296,6 +308,9 @@ private:
     eng::vector<uint32_t> new_outgoing_;
     util::LuaSourcePtr lua_source_;
     eng::vector<uint32_t> listen_ports_;
+    World *visible_world_;
+    int64_t visible_actor_id_;
+    util::IdVector scan_result_;
     bool rescan_lua_source_;
     double clock_;
     bool stop_driver_;