anim: add get time from state function (unused now)

diff --git a/src/game/g_animations.pas b/src/game/g_animations.pas
index efa32ec8e2c5d94ca8886abf344e8a0881a40328..0135b15ec0c2587fd2e734e3dacfaa98951e60a1 100644 (file)
--- a/src/game/g_animations.pas
+++ b/src/game/g_animations.pas
@@ -79,6 +79,7 @@ interface
 
   procedure g_Anim_GetFrameFromState (const s: TAnimState; backanim: Boolean; out frame: LongInt);
   procedure g_Anim_GetInterplatedFrameFromState (const s: TAnimState; newlength: LongInt; out frame: LongInt);
+  procedure g_Anim_GetTimeFromState (const s: TAnimState; out curtime, fulltime: LongInt);
 
 implementation
 
@@ -323,4 +324,17 @@ implementation
     ASSERT(frame < newlength);
   end;
 
+  procedure g_Anim_GetTimeFromState (const s: TAnimState; out curtime, fulltime: LongInt);
+    var delay, curframe, curcount: LongInt;
+  begin
+    ASSERT(s.length > 0);
+    (* 1. normalize state values *)
+    delay := MAX(1, s.speed);
+    curframe := MIN(MAX(s.CurrentFrame, 0), s.length - 1);
+    curcount := MIN(MAX(s.CurrentCounter, 0), delay - 1);
+    (* 2. calc current time (normalized) *)
+    fulltime := s.length * delay;
+    curtime := MIN(curframe * delay + curcount, fulltime);
+  end;
+
 end.