Changeset 591 for trunk/MiniMap.pas

Timestamp:

Jul 24, 2024, 11:02:31 PM (4 months ago)

Author:

chronos

Message:

• Modified: Draw graphical preview for maps which doesn't have associated image.

File:

• trunk/MiniMap.pas (modified) (5 diffs)

trunk/MiniMap.pas

@@ -26 +26 @@
     procedure LoadFromLogFile(FileName: string; var LastTurn: Integer; DefaultSize: TPoint);
     procedure LoadFromMapFile(FileName: string; var nMapLandTiles, nMapStartPositions: Integer);
+    procedure PaintMap(Map: TMap);
     procedure PaintRandom(Brightness, StartLandMass: Integer; WorldSize: TPoint);
     procedure PaintFile(SaveMap: TMapArray);
@@ -111 +112 @@
 procedure TMiniMap.LoadFromMapFile(FileName: string; var nMapLandTiles, nMapStartPositions: Integer);
 var
-  x, y: integer;
-  MapRow: array [0 .. lxmax - 1] of Cardinal;
+  X, Y: Integer;
   ImageFileName: string;
   Map: TMap;
   Tile: Cardinal;
+  PaintMapEnabled: Boolean;
 begin
   ImageFileName := Copy(FileName, 1, Length(FileName) - Length(CevoMapExt)) + CevoMapPictureExt;
@@ -126 +127 @@
       Bitmap.Height := MaxHeightMapLogo;
     Size := Point(Bitmap.Width div 2, Bitmap.Height);
+    PaintMapEnabled := False;
   end else begin
-    Mode := mmNone;
+    Mode := mmPicture;
     Size := Point(MaxWidthMapLogo, MaxHeightMapLogo);
+    PaintMapEnabled := True;
   end;
 
@@ -136 +139 @@
     nMapLandTiles := 0;
     nMapStartPositions := 0;
-    for y := 0 to Map.Size.Y - 1 do begin
+    for Y := 0 to Map.Size.Y - 1 do begin
       for X := 0 to Map.Size.X - 1 do begin
         Tile := Map.Tiles[Y * Map.Size.X + X];
@@ -148 +151 @@
     if nMapStartPositions > nPl then
       nMapStartPositions := nPl;
+
+    if PaintMapEnabled then begin
+      Size := Map.Size;
+      PaintMap(Map);
+    end;
   finally
     FreeAndNil(Map);
+  end;
+end;
+
+procedure TMiniMap.PaintMap(Map: TMap);
+var
+  i, x, y, xm, cm, Tile, OwnColor, EnemyColor: integer;
+  MiniPixel: TPixelPointer;
+  PrevMiniPixel: TPixelPointer;
+  xx, yy: Integer;
+begin
+  OwnColor := HGrSystem.Data.Canvas.Pixels[95, 67];
+  EnemyColor := HGrSystem.Data.Canvas.Pixels[96, 67];
+  Bitmap.PixelFormat := TPixelFormat.pf24bit;
+  Bitmap.SetSize(Size.X * 2, Size.Y);
+  if Mode = mmPicture then begin
+    Bitmap.BeginUpdate;
+    MiniPixel := TPixelPointer.Create(Bitmap);
+    PrevMiniPixel := TPixelPointer.Create(Bitmap);
+    xx := ScaleToNative(Size.X);
+    yy := ScaleToNative(Size.Y);
+    for y := 0 to yy - 1 do begin
+      for x := 0 to xx - 1 do begin
+        for i := 0 to 1 do begin
+          xm := (x * 2 + i + y and 1) mod (xx * 2);
+          MiniPixel.SetX(xm);
+          Tile := Map.Tiles[ScaleFromNative(x) + Size.X * ScaleFromNative(y)];
+          if Tile and fTerrain = fUNKNOWN then
+            cm := $000000
+          else if Tile and smCity <> 0 then begin
+            if Tile and smOwned <> 0 then cm := OwnColor
+              else cm := EnemyColor;
+            if y > 0 then begin
+              // 2x2 city dot covers two lines
+              PrevMiniPixel.SetX(xm);
+              if (PByte(PrevMiniPixel.Pixel) >= Bitmap.RawImage.Data) and
+              (PByte(PrevMiniPixel.Pixel) < (Bitmap.RawImage.Data + yy * PrevMiniPixel.BytesPerLine)) then begin
+                PrevMiniPixel.PixelB := cm shr 16;
+                PrevMiniPixel.PixelG:= cm shr 8 and $FF;
+                PrevMiniPixel.PixelR := cm and $FF;
+              end;
+            end;
+          end
+          else if (i = 0) and (Tile and smUnit <> 0) then begin
+            if Tile and smOwned <> 0 then cm := OwnColor
+              else cm := EnemyColor;
+          end else
+            cm := Colors[Tile and fTerrain, i];
+          if (PByte(MiniPixel.Pixel) >= Bitmap.RawImage.Data) and
+          (PByte(MiniPixel.Pixel) < (Bitmap.RawImage.Data + yy * MiniPixel.BytesPerLine)) then begin
+            MiniPixel.PixelB := (cm shr 16) and $ff;
+            MiniPixel.PixelG := (cm shr 8) and $ff;
+            MiniPixel.PixelR := (cm shr 0) and $ff;
+          end;
+        end;
+      end;
+      MiniPixel.NextLine;
+      if y > 0 then PrevMiniPixel.NextLine;
+    end;
+    Bitmap.EndUpdate;
   end;
 end;