field namefix: `FLive` -> `FAlive`; `live` -> `alive`

[d2df-sdl.git] / src / engine / e_graphics.pas

diff --git a/src/engine/e_graphics.pas b/src/engine/e_graphics.pas
index 59f848b896aa82a876b4eb129aa8d91c8f3451a1..b88dfb603b61262459c5d260469b0ad013ecf198 100644 (file)
--- a/src/engine/e_graphics.pas
+++ b/src/engine/e_graphics.pas
@@ -29,9 +29,6 @@ type
     X, Y: Integer;
   end;
 
-  TPoint = MAPDEF.TPoint; // TODO: create an utiltypes.pas or something
-                          //       for other types like rect as well
-
   TPoint2f = record
     X, Y: Double;
   end;
@@ -49,7 +46,7 @@ type
    R, G, B: Byte;
   end;
 
-  PPoint = ^TPoint;
+  PDFPoint = ^TDFPoint;
   PPoint2f = ^TPoint2f;
   PRect = ^TRect;
   PRectWH = ^TRectWH;
@@ -65,7 +62,7 @@ procedure e_ResizeWindow(Width, Height: Integer);
 procedure e_Draw(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
                  Blending: Boolean; Mirror: TMirrorType = M_NONE);
 procedure e_DrawAdv(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
-                    Blending: Boolean; Angle: Single; RC: PPoint; Mirror: TMirrorType = M_NONE);
+                    Blending: Boolean; Angle: Single; RC: PDFPoint; Mirror: TMirrorType = M_NONE);
 procedure e_DrawSize(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
                      Blending: Boolean; Width, Height: Word; Mirror: TMirrorType = M_NONE);
 procedure e_DrawSizeMirror(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
@@ -77,6 +74,8 @@ procedure e_DrawLine(Width: Byte; X1, Y1, X2, Y2: Integer; Red, Green, Blue: Byt
 procedure e_DrawQuad(X1, Y1, X2, Y2: Integer; Red, Green, Blue: Byte; Alpha: Byte = 0);
 procedure e_DrawFillQuad(X1, Y1, X2, Y2: Integer; Red, Green, Blue, Alpha: Byte;
                          Blending: TBlending = B_NONE);
+procedure e_DarkenQuad (x0, y0, x1, y1: Integer; a: Integer);
+procedure e_DarkenQuadWH (x, y, w, h: Integer; a: Integer);
 
 function e_CreateTextureImg (var img: TImageData; var ID: DWORD): Boolean;
 function e_CreateTexture(FileName: string; var ID: DWORD): Boolean;
@@ -168,7 +167,7 @@ type
     end;
    Space: ShortInt;
    Height: ShortInt;
-   Live: Boolean;
+   alive: Boolean;
   end;
 
   TSavedTexture = record
@@ -681,7 +680,7 @@ begin
 end;
 
 procedure e_DrawAdv(ID: DWORD; X, Y: Integer; Alpha: Byte; AlphaChannel: Boolean;
-                    Blending: Boolean; Angle: Single; RC: PPoint; Mirror: TMirrorType = M_NONE);
+                    Blending: Boolean; Angle: Single; RC: PDFPoint; Mirror: TMirrorType = M_NONE);
 begin
   if e_NoGraphics then Exit;
 
@@ -861,6 +860,34 @@ begin
   glDisable(GL_BLEND);
 end;
 
+
+// ////////////////////////////////////////////////////////////////////////// //
+procedure e_DarkenQuad (x0, y0, x1, y1: Integer; a: Integer);
+begin
+  if (a < 0) then a := 0;
+  if (a > 255) then a := 255;
+  glEnable(GL_BLEND);
+  glBlendFunc(GL_ZERO, GL_SRC_ALPHA);
+  glDisable(GL_TEXTURE_2D);
+  glColor4ub(0, 0, 0, Byte(255-a));
+  glBegin(GL_QUADS);
+    glVertex2i(x0, y0);
+    glVertex2i(x1, y0);
+    glVertex2i(x1, y1);
+    glVertex2i(x0, y1);
+  glEnd();
+  //glRect(x, y, x+w, y+h);
+  glColor4ub(1, 1, 1, 1);
+  glDisable(GL_BLEND);
+  //glBlendEquation(GL_FUNC_ADD);
+end;
+
+procedure e_DarkenQuadWH (x, y, w, h: Integer; a: Integer);
+begin
+  if (w > 0) and (h > 0) then e_DarkenQuad(x, y, x+w, y+h, a);
+end;
+
+
 procedure e_DrawLine(Width: Byte; X1, Y1, X2, Y2: Integer; Red, Green, Blue: Byte; Alpha: Byte = 0);
 begin
   if e_NoGraphics then Exit;
@@ -1024,7 +1051,7 @@ begin
 
  if e_CharFonts <> nil then
  for i := 0 to High(e_CharFonts) do
-  if not e_CharFonts[i].Live then
+  if not e_CharFonts[i].alive then
   begin
    id := i;
    Break;
@@ -1046,7 +1073,7 @@ begin
    end;
 
   Space := sp;
-  Live := True;
+  alive := True;
  end;
 
  Result := id;
@@ -1318,7 +1345,7 @@ begin
   for a := 0 to High(Chars) do
    if Chars[a].TextureID <> -1 then e_DeleteTexture(Chars[a].TextureID);
 
- e_CharFonts[FontID].Live := False;
+ e_CharFonts[FontID].alive := False;
 end;
 
 procedure e_CharFont_RemoveAll();