diff options
Diffstat (limited to '')
| -rw-r--r-- | Game/Code/Classes/TextGL.pas | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/Game/Code/Classes/TextGL.pas b/Game/Code/Classes/TextGL.pas new file mode 100644 index 00000000..0f4ae82e --- /dev/null +++ b/Game/Code/Classes/TextGL.pas @@ -0,0 +1,345 @@ +unit TextGL;
+
+interface
+
+uses OpenGL12, SDL, UTexture, Classes, ULog;
+
+procedure BuildFont; // Build Our Bitmap Font
+procedure KillFont; // Delete The Font
+function glTextWidth(text: pchar): real; // Returns Text Width
+procedure glPrintDone(text: pchar; Done: real; ColR, ColG, ColB: real);
+procedure glPrintLetter(letter: char);
+procedure glPrintLetterCut(letter: char; Start, Finish: real);
+procedure glPrint(text: pchar); // Custom GL "Print" Routine
+procedure glPrintCut(text: pchar);
+procedure SetFontPos(X, Y: real); // Sets X And Y
+procedure SetFontSize(Size: real);
+procedure SetFontStyle(Style: integer); // sets active font style (normal, bold, etc)
+procedure SetFontItalic(Enable: boolean); // sets italic type letter (works for all fonts)
+procedure SetFontAspectW(Aspect: real);
+
+type
+ TTextGL = record
+ X: real;
+ Y: real;
+ Text: string;
+ Size: real;
+ ColR: real;
+ ColG: real;
+ ColB: real;
+ end;
+
+ TFont = record
+ Tex: TTexture;
+ Width: array[0..255] of byte;
+ AspectW: real;
+ Centered: boolean;
+ Done: real;
+ Outline: real;
+ Italic: boolean;
+ end;
+
+
+var
+ base: GLuint; // Base Display List For The Font Set
+ Fonts: array of TFont;
+ ActFont: integer;
+ PColR: real; // temps for glPrintDone
+ PColG: real;
+ PColB: real;
+
+implementation
+
+uses UMain, Windows, SysUtils, UGraphic;
+
+procedure BuildFont; // Build Our Bitmap Font
+var
+ font: HFONT; // Windows Font ID
+ h_dc: hdc;
+ Rejestr: TResourceStream;
+ Pet: integer;
+begin
+ ActFont := 0;
+
+ SetLength(Fonts, 5);
+ Fonts[0].Tex := Texture.LoadTexture(true, 'Font', 'PNG', 'Font', 0);
+ Fonts[0].Tex.H := 30;
+ Fonts[0].AspectW := 0.9;
+ Fonts[0].Done := -1;
+ Fonts[0].Outline := 0;
+
+ Fonts[1].Tex := Texture.LoadTexture(true, 'FontB', 'PNG', 'Font', 0);
+ Fonts[1].Tex.H := 30;
+ Fonts[1].AspectW := 1;
+ Fonts[1].Done := -1;
+ Fonts[1].Outline := 0;
+
+ Fonts[2].Tex := Texture.LoadTexture(true, 'FontO', 'PNG', 'Font Outline', 0);
+ Fonts[2].Tex.H := 30;
+ Fonts[2].AspectW := 0.95;
+ Fonts[2].Done := -1;
+ Fonts[2].Outline := 5;
+
+ Fonts[3].Tex := Texture.LoadTexture(true, 'FontO2', 'PNG', 'Font Outline 2', 0);
+ Fonts[3].Tex.H := 30;
+ Fonts[3].AspectW := 0.95;
+ Fonts[3].Done := -1;
+ Fonts[3].Outline := 4;
+
+{ Fonts[4].Tex := Texture.LoadTexture('FontO', 'BMP', 'Arrow', 0); // for score screen
+ Fonts[4].Tex.H := 30;
+ Fonts[4].AspectW := 0.95;
+ Fonts[4].Done := -1;
+ Fonts[4].Outline := 5;}
+
+
+ Rejestr := TResourceStream.Create(HInstance, 'Font', 'FNT');
+ Rejestr.Read(Fonts[0].Width, 256);
+ Rejestr.Free;
+
+ Rejestr := TResourceStream.Create(HInstance, 'FontB', 'FNT');
+ Rejestr.Read(Fonts[1].Width, 256);
+ Rejestr.Free;
+
+ Rejestr := TResourceStream.Create(HInstance, 'FontO', 'FNT');
+ Rejestr.Read(Fonts[2].Width, 256);
+ Rejestr.Free;
+
+ Rejestr := TResourceStream.Create(HInstance, 'FontO2', 'FNT');
+ Rejestr.Read(Fonts[3].Width, 256);
+ Rejestr.Free;
+
+{ Rejestr := TResourceStream.Create(HInstance, 'FontO', 'FNT');
+ Rejestr.Read(Fonts[4].Width, 256);
+ Rejestr.Free;}
+
+ for Pet := 0 to 255 do
+ Fonts[1].Width[Pet] := Fonts[1].Width[Pet] div 2;
+
+ for Pet := 0 to 255 do
+ Fonts[2].Width[Pet] := Fonts[2].Width[Pet] div 2 + 2;
+
+ for Pet := 0 to 255 do
+ Fonts[3].Width[Pet] := Fonts[3].Width[Pet] + 1;
+
+{ for Pet := 0 to 255 do
+ Fonts[4].Width[Pet] := Fonts[4].Width[Pet] div 2 + 2;}
+
+end;
+
+procedure KillFont; // Delete The Font
+begin
+// glDeleteLists(base, 256); // Delete All 96 Characters
+end;
+
+function glTextWidth(text: pchar): real;
+var
+ Letter: char;
+begin
+// Log.LogStatus(Text, 'glTextWidth');
+ Result := 0;
+ while (length(text) > 0) do begin
+ Letter := Text[0];
+ text := pchar(Copy(text, 2, Length(text)-1));
+ Result := Result + Fonts[ActFont].Width[Ord(Letter)] * Fonts[ActFont].Tex.H / 30 * Fonts[ActFont].AspectW;
+ end; // while
+end;
+
+procedure glPrintDone(text: pchar; Done: real; ColR, ColG, ColB: real);
+begin
+ Fonts[ActFont].Done := Done;
+ PColR := ColR;
+ PColG := ColG;
+ PColB := ColB;
+ glPrintCut(text);
+ Fonts[ActFont].Done := -1;
+end;
+
+procedure glPrintLetter(Letter: char);
+var
+ TexX, TexY: real;
+ TexR, TexB: real;
+ FWidth: real;
+ PL, PT: real;
+ PR, PB: real;
+ XItal: real; // X shift for italic type letter
+begin
+ with Fonts[ActFont].Tex do begin
+ FWidth := Fonts[ActFont].Width[Ord(Letter)];
+
+ W := FWidth * (H/30) * Fonts[ActFont].AspectW;
+// H := 30;
+
+ // set texture positions
+ TexX := (ord(Letter) mod 16) * 1/16 + 1/32 - FWidth/1024 - Fonts[ActFont].Outline/1024;
+ TexY := (ord(Letter) div 16) * 1/16 + 2/1024; // 2/1024
+ TexR := (ord(Letter) mod 16) * 1/16 + 1/32 + FWidth/1024 + Fonts[ActFont].Outline/1024;
+ TexB := (1 + ord(Letter) div 16) * 1/16 - 2/1024;
+
+ // set vector positions
+ PL := X - Fonts[ActFont].Outline * (H/30) * Fonts[ActFont].AspectW /2;
+ PT := Y;
+ PR := PL + W + Fonts[ActFont].Outline * (H/30) * Fonts[ActFont].AspectW;
+ PB := PT + H;
+ if Fonts[ActFont].Italic = false then
+ XItal := 0
+ else
+ XItal := 12;
+
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glBindTexture(GL_TEXTURE_2D, TexNum);
+ glBegin(GL_QUADS);
+ glTexCoord2f(TexX, TexY); glVertex2f(PL+XItal, PT);
+ glTexCoord2f(TexX, TexB); glVertex2f(PL, PB);
+ glTexCoord2f(TexR, TexB); glVertex2f(PR, PB);
+ glTexCoord2f(TexR, TexY); glVertex2f(PR+XItal, PT);
+ glEnd;
+ X := X + W;
+ glDisable(GL_BLEND);
+ glDisable(GL_TEXTURE_2D);
+ end; // with
+end;
+
+procedure glPrintLetterCut(letter: char; Start, Finish: real);
+var
+ TexX, TexY: real;
+ TexR, TexB: real;
+ TexTemp: real;
+ FWidth: real;
+ PL, PT: real;
+ PR, PB: real;
+ OutTemp: real;
+ XItal: real;
+begin
+ with Fonts[ActFont].Tex do begin
+ FWidth := Fonts[ActFont].Width[Ord(Letter)];
+
+ W := FWidth * (H/30) * Fonts[ActFont].AspectW;
+// H := 30;
+ OutTemp := Fonts[ActFont].Outline * (H/30) * Fonts[ActFont].AspectW;
+
+ // set texture positions
+ TexX := (ord(Letter) mod 16) * 1/16 + 1/32 - FWidth/1024 - Fonts[ActFont].Outline/1024;
+ TexY := (ord(Letter) div 16) * 1/16 + 2/1024; // 2/1024
+ TexR := (ord(Letter) mod 16) * 1/16 + 1/32 + FWidth/1024 + Fonts[ActFont].Outline/1024;
+ TexB := (1 + ord(Letter) div 16) * 1/16 - 2/1024;
+
+ TexTemp := TexX + Start * (TexR - TexX);
+ TexR := TexX + Finish * (TexR - TexX);
+ TexX := TexTemp;
+
+ // set vector positions
+ PL := X - OutTemp / 2 + OutTemp * Start;
+ PT := Y;
+ PR := PL + (W + OutTemp) * (Finish - Start);
+ PB := PT + H;
+ if Fonts[ActFont].Italic = false then
+ XItal := 0
+ else
+ XItal := 12;
+
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glBindTexture(GL_TEXTURE_2D, TexNum);
+ glBegin(GL_QUADS);
+ glTexCoord2f(TexX, TexY); glVertex2f(PL+XItal, PT);
+ glTexCoord2f(TexX, TexB); glVertex2f(PL, PB);
+ glTexCoord2f(TexR, TexB); glVertex2f(PR, PB);
+ glTexCoord2f(TexR, TexY); glVertex2f(PR+XItal, PT); // not tested with XItal
+ glEnd;
+ X := X + W * (Finish - Start);
+ glDisable(GL_BLEND);
+ glDisable(GL_TEXTURE_2D);
+ end; // with
+
+end;
+
+procedure glPrint(text: pchar); // Custom GL "Print" Routine
+var
+ Letter: char;
+begin
+ if (Text = '') then // If There's No Text
+ Exit; // Do Nothing
+
+ while (length(text) > 0) do begin
+ // cut
+ Letter := Text[0];
+ Text := pchar(Copy(Text, 2, Length(Text)-1));
+
+ // print
+ glPrintLetter(Letter);
+ end; // while
+end;
+
+procedure glPrintCut(text: pchar);
+var
+ Letter: char;
+ PToDo: real;
+ PTotWidth: real;
+ PDoingNow: real;
+ S: string;
+begin
+ if (Text = '') then // If There's No Text
+ Exit; // Do Nothing
+
+ PTotWidth := glTextWidth(Text);
+ PToDo := Fonts[ActFont].Done;
+
+ while (length(text) > 0) do begin
+ // cut
+ Letter := Text[0];
+ Text := pchar(Copy(Text, 2, Length(Text)-1));
+
+ // analyze
+ S := Letter;
+ PDoingNow := glTextWidth(pchar(S)) / PTotWidth;
+
+ // drawing
+ if (PToDo > 0) and (PDoingNow <= PToDo) then
+ glPrintLetter(Letter);
+
+ if (PToDo > 0) and (PDoingNow > PToDo) then begin
+ glPrintLetterCut(Letter, 0, PToDo / PDoingNow);
+ glColor3f(PColR, PColG, PColB);
+ glPrintLetterCut(Letter, PToDo / PDoingNow, 1);
+ end;
+
+ if (PToDo <= 0) then
+ glPrintLetter(Letter);
+
+ PToDo := PToDo - PDoingNow;
+
+ end; // while
+end;
+
+
+procedure SetFontPos(X, Y: real);
+begin
+ Fonts[ActFont].Tex.X := X;
+ Fonts[ActFont].Tex.Y := Y;
+end;
+
+procedure SetFontSize(Size: real);
+begin
+ Fonts[ActFont].Tex.H := 30 * (Size/10);
+end;
+
+procedure SetFontStyle(Style: integer);
+begin
+ ActFont := Style;
+end;
+
+procedure SetFontItalic(Enable: boolean);
+begin
+ Fonts[ActFont].Italic := Enable;
+end;
+
+procedure SetFontAspectW(Aspect: real);
+begin
+ Fonts[ActFont].AspectW := Aspect;
+end;
+
+end.
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