particle code uglyfying; more gitiks in holmes

[d2df-sdl.git] / src / game / g_map.pas

diff --git a/src/game/g_map.pas b/src/game/g_map.pas
index bbe1d6c3c7dc535a53ed9b84e1ffd31d84e459c1..2c2a6b5c1a18c16e16c35cd2f4210eb79c5b6662 100644 (file)
--- a/src/game/g_map.pas
+++ b/src/game/g_map.pas
@@ -92,9 +92,14 @@ procedure g_Map_LoadState(Var Mem: TBinMemoryReader);
 
 procedure g_Map_DrawPanelShadowVolumes(lightX: Integer; lightY: Integer; radius: Integer);
 
-// returns wall index in `gWalls` or -1
+// returns panel or nil
+// sets `ex` and `ey` to `x1` and `y1` when no hit was detected
 function g_Map_traceToNearestWall (x0, y0, x1, y1: Integer; hitx: PInteger=nil; hity: PInteger=nil): TPanel;
 
+// returns panel or nil
+// sets `ex` and `ey` to `x1` and `y1` when no hit was detected
+function g_Map_traceToNearest (x0, y0, x1, y1: Integer; tag: Integer; hitx: PInteger=nil; hity: PInteger=nil): TPanel;
+
 type
   TForEachPanelCB = function (pan: TPanel): Boolean; // return `true` to stop
 
@@ -299,6 +304,24 @@ begin
   end;
 end;
 
+// returns panel or nil
+function g_Map_traceToNearest (x0, y0, x1, y1: Integer; tag: Integer; hitx: PInteger=nil; hity: PInteger=nil): TPanel;
+var
+  ex, ey: Integer;
+begin
+  result := mapGrid.traceRay(ex, ey, x0, y0, x1, y1, nil, tag);
+  if (result <> nil) then
+  begin
+    if (hitx <> nil) then hitx^ := ex;
+    if (hity <> nil) then hity^ := ey;
+  end
+  else
+  begin
+    if (hitx <> nil) then hitx^ := x1;
+    if (hity <> nil) then hity^ := y1;
+  end;
+end;
+
 
 function g_Map_HasAnyPanelAtPoint (x, y: Integer; panelType: Word): Boolean;