X-Git-Url: http://deadsoftware.ru/gitweb?a=blobdiff_plain;f=src%2Fgame%2Fg_phys.pas;h=69199797b06237a4ac9023f44ced5fc1868a4ad2;hb=c5684c0c980bb96fd4fd0efae4d48cdeb469c8ff;hp=9d93a5b560ec059d0dc6e5d984103f66acf88d57;hpb=987c4a835a103345b59937e8e1be8524a6228712;p=d2df-sdl.git

diff --git a/src/game/g_phys.pas b/src/game/g_phys.pas
index 9d93a5b..6919979 100644
--- a/src/game/g_phys.pas
+++ b/src/game/g_phys.pas
@@ -17,8 +17,7 @@ unit g_phys;
 
 interface
 
-uses
-  e_graphics;
+  uses g_base;
 
 type
   PObj = ^TObj;
@@ -31,6 +30,9 @@ type
     // this is purely visual change, it won't affect anything else
     slopeUpLeft: Integer; // left to go
     slopeFramesLeft: Integer; // frames left to go
+    // for frame interpolation
+    oldX, oldY: Integer;
+    procedure lerp(t: Single; out fX, fY: Integer);
   end;
 
 const
@@ -82,6 +84,11 @@ uses
 const
   SmoothSlopeFrames = 4;
 
+procedure TObj.lerp(t: Single; out fX, fY: Integer);
+begin
+  fX := nlerp(oldX, X, t);
+  fY := nlerp(oldY, Y, t);
+end;
 
 function g_Obj_StayOnStep(Obj: PObj): Boolean; inline;
 begin