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sdlgfx.pp
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sdlgfx.pp
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unit sdlgfx;
{
GearHead2, a roguelike mecha CRPG
Copyright (C) 2005 Joseph Hewitt
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at
your option) any later version.
The full text of the LGPL can be found in license.txt.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
}
{
This is a 2DSD interface for GH2, because acronyms rock.
}
{$MODE FPC}
{$LONGSTRINGS ON}
{$IFDEF ASCII}
Interrupt compilation now.
{$ENDIF}
interface
uses SDL,SDL_TTF,SDL_Image,gears,texutil,dos,ui4gh;
Type
SensibleSpritePtr = ^SensibleSprite;
SensibleSprite = Record
Name,Color: String;
W,H: Integer; { Width and Height of each cell. }
Img: PSDL_Surface;
Next: SensibleSpritePtr;
end;
RedrawProcedureType = Procedure;
DynamicRect = Object
dx,dy,w,h,anchor: Integer;
function GetRect: TSDL_Rect;
end;
const
Avocado: TSDL_Color = ( r:136; g:141; b:101 );
Bacardi: TSDL_Color = ( r:121; g:105; b:137 );
Jade: TSDL_Color = ( r: 66; g:121; b:119 );
BrightJade: TSDL_Color = ( r:100; g:200; b:180 );
StdBlack: TSDL_Color = ( r: 5; g: 5; b: 5 );
StdWhite: TSDL_Color = ( r:255; g:255; b:255 );
MenuItem: TSDL_Color = ( r: 88; g:161; b:159 );
MenuSelect: TSDL_Color = ( r:125; g:250; b:125 );
TerrainGreen: TSDL_Color = ( r:100; g:210; b: 0 );
PlayerBlue: TSDL_Color = ( r: 0; g:141; b:211 );
AllyPurple: TSDL_Color = ( r:236; g: 0; b:211 );
EnemyRed: TSDL_Color = ( r:230; g: 0; b: 0 );
NeutralGrey: TSDL_Color = ( r:150; g:150; b:150 );
DarkGrey: TSDL_Color = ( r:100; g:100; b:100 );
InfoGreen: TSDL_Color = ( r: 0; g:240; b: 0 );
InfoHiLight: TSDL_Color = ( r: 70; g:255; b: 70 );
TextboxGrey: TSDL_Color = ( r:130; g:120; b:125 );
NeutralBrown: TSDL_Color = ( r:230; g:191; b: 81 );
BorderBlue: TSDL_Color = ( r: 0; g:101; b:151 );
Cyan: TSDL_Color = ( r: 0; g:255; b:155 );
MelodyYellow: TSDL_Color = ( r:250; g:200; b: 0 );
BorderColor: TSDL_Color = ( r:200; g: 50; b: 0 );
ScreenWidth = 800;
ScreenHeight = 600;
FontSize = 12;
SmallFontSize = 9;
Right_Column_Width = 180;
ANC_upperleft = 0;
ANC_upper = 1;
ANC_upperright = 2;
ANC_left = 3;
ANC_middle = 4;
ANC_right = 5;
ANC_lowerleft = 6;
ANC_lower = 7;
ANC_lowerright = 8;
ZONE_TextInputPrompt: DynamicRect = ( dx:-210; dy:-51; w:420; h:16; anchor: ANC_middle );
ZONE_TextInput: DynamicRect = ( dx:-210; dy:-27; w:420; h:16; anchor: ANC_middle );
ZONE_TextInputBigBox: DynamicRect = ( dx:-220; dy:-61; w:440; h:56; anchor: ANC_middle );
ZONE_PhoneInstructions: DynamicRect = ( dx:-200; dy:15; w:400; h:16; anchor: ANC_middle );
Model_Status_Width = 250;
Model_Status_Height = 120;
Console_History_Length = 240;
Dialog_Area_Height = Model_Status_Height;
ZONE_Info: DynamicRect = ( dx: -Right_Column_Width - 10 ; dy:10; w:Right_Column_Width; h:150; anchor: ANC_upperright );
ZONE_Menu: DynamicRect = ( dx: -Right_Column_Width - 10 ; dy:170; w:Right_Column_Width; h:ScreenHeight - 220 - Dialog_Area_Height; anchor: ANC_upperright );
ZONE_Menu1: DynamicRect = ( dx: -Right_Column_Width - 10 ; dy:170; w:Right_Column_Width; h:130; anchor: ANC_upperright );
ZONE_Menu2: DynamicRect = ( dx: - Right_Column_Width - 10 ; dy:310; w:Right_Column_Width; h:ScreenHeight - 350 - Dialog_Area_Height; anchor: ANC_upperright );
ZONE_Dialog: DynamicRect = ( dx: Model_Status_Width - 375; dy: -Model_Status_Height-10; w: 750 - Model_Status_Width; h: Model_Status_Height; anchor: ANC_lower );
ZONE_PCStatus: DynamicRect = ( dx: -380; dy: -Model_Status_Height - 10; w: Model_Status_Width; h: Model_Status_Height; anchor: ANC_lower );
KEY_REPEAT_DELAY = 200;
KEY_REPEAT_INTERVAL = 75;
RPK_MouseButton = #$90;
RPK_TimeEvent = #$91;
RPK_RightButton = #$92;
ZONE_MoreText: DynamicRect = ( dx:-350; dy:-270; w: 700 ; h: 385; anchor: ANC_middle );
ZONE_MorePrompt: DynamicRect = ( dx:-300; dy: 130 ; w:600; h:30; anchor: ANC_middle );
ZONE_CharGenChar: DynamicRect = ( dx:-368; dy:-210; w: 500 ; h: 400; anchor: ANC_middle );
ZONE_CharGenMenu: DynamicRect = ( dx:148; dy:-50; w:220; h:230; anchor: ANC_middle );
ZONE_CharGenCaption: DynamicRect = ( dx:148; dy:190; w:220; h:20; anchor: ANC_middle );
ZONE_CharGenDesc: DynamicRect = ( dx:148; dy:-210; w:220; h:150; anchor: ANC_middle );
ZONE_CharGenPrompt: DynamicRect = ( dx:-150; dy:-245; w:300; h:20; anchor: ANC_middle );
ZONE_CharGenHint: DynamicRect = ( dx:-160; dy:225; w:320; h:20; anchor: ANC_middle );
ZONE_CharViewChar: DynamicRect = ( dx:-368; dy:-260; w: 500 ; h: 400; anchor: ANC_middle );
ZONE_CharViewMenu: DynamicRect = ( dx:148; dy:-100; w:220; h:230; anchor: ANC_middle );
ZONE_CharViewCaption: DynamicRect = ( dx:148; dy:140; w:220; h:20; anchor: ANC_middle );
ZONE_CharViewDesc: DynamicRect = ( dx:148; dy:-260; w:220; h:150; anchor: ANC_middle );
ZONE_ShopNPCName: DynamicRect = ( dx:-330; dy: -230; w: 100; h: 32; anchor: ANC_middle );
ZONE_ShopNPCPortrait: DynamicRect = ( dx:-330; dy: -210; w: 100; h: 150; anchor: ANC_middle );
ZONE_ShopText: DynamicRect = ( dx:-225; dy: -230; w: 287; h: 170; anchor: ANC_middle );
ZONE_ShopPCName: DynamicRect = ( dx:-330; dy: -30; w: 100; h: 32; anchor: ANC_middle );
ZONE_ShopPCPortrait: DynamicRect = ( dx:-330; dy: -10; w: 100; h: 150; anchor: ANC_middle );
ZONE_ShopMenu: DynamicRect = ( dx:-225; dy: -35; w: 287; h: 190; anchor: ANC_middle );
ZONE_ShopInfo: DynamicRect = (dx:85; dY:-225; W: 250; H: 340; anchor: ANC_middle);
ZONE_ShopCash: DynamicRect = ( dx:135; dy: 130; w: 150; h: 16; anchor: ANC_middle );
ZONE_ShopTop: DynamicRect = ( dx:-335; dy: -235; w: 402; h: 180; anchor: ANC_middle );
ZONE_ShopBottom: DynamicRect = ( dx:-335; dy: -40; w: 402; h: 200; anchor: ANC_middle );
Concert_Zone_Width = 500;
Concert_X0 = -(Concert_Zone_Width div 2);
Concert_X1 = Concert_X0 + 110;
Concert_Text_Width = Concert_Zone_Width - 110;
Concert_Zone_Height = 300;
Concert_y0 = -180;
Concert_Audience_Height = 140;
Concert_Y1 = Concert_Y0 + Concert_Audience_Height + 10;
ZONE_ConcertTotal: DynamicRect = ( dx: Concert_X0 ; dy: Concert_Y0; w: Concert_Zone_Width; h: Concert_Zone_Height; anchor: ANC_middle );
ZONE_ConcertAudience: DynamicRect = ( dx: Concert_X0 ; dy: Concert_Y0; w: Concert_Zone_Width; h: Concert_Audience_Height; anchor: ANC_middle );
ZONE_ConcertCaption: DynamicRect = ( dx: Concert_X1 ; dy: Concert_Y1; w: Concert_Text_Width; h: 40; anchor: ANC_middle );
ZONE_ConcertMenu: DynamicRect = ( dx: Concert_X1 ; dy: Concert_Y1 + 45; w: Concert_Text_Width; h: 80; anchor: ANC_middle );
ZONE_ConcertDesc: DynamicRect = ( dx: Concert_X1 ; dy: Concert_Y1 + 130; w: Concert_Text_Width; h: 20; anchor: ANC_middle );
ZONE_ConcertPhoto: DynamicRect = ( dx: Concert_X0 ; dy: Concert_Y1; w: 100; h: 150; anchor: ANC_middle );
ZONE_InteractStatus: DynamicRect = ( dx:-250; dy: -210; w: 395; h: 40; anchor: ANC_middle );
ZONE_InteractMsg: DynamicRect = ( dx: -250; dy:-120; w:395; h: 110; anchor: ANC_middle );
ZONE_InteractMenu: DynamicRect = ( dx: -250; dy:-5; w:500; h: 120; anchor: ANC_middle );
ZONE_InteractPhoto: DynamicRect = ( dx: 150; dy: -185; w: 100; h: 150; anchor: ANC_middle );
ZONE_InteractInfo: DynamicRect = ( dx: -250; dy:-165; w:395; h:40; anchor: ANC_middle );
ZONE_InteractTotal: DynamicRect = ( dx: -255; dy: -215; w: 510; h: 335; anchor: ANC_middle );
ZONE_CenterMenu: DynamicRect = ( dx:-120; dy:-155; w:240; h:210; anchor: ANC_middle );
{ The ITEMS ZONE is used for both the backpack and shopping interfaces. }
ItemsLeftWidth = 345;
ItemsRightWidth = 225;
ItemsZoneLeftTab = ( ScreenWidth - ItemsLeftWidth - ItemsRightWidth - 10 ) div 2;
ItemsZoneRightTab = ItemsZoneLeftTab + ItemsLeftWidth + 10;
ZONE_ItemsInfo: DynamicRect = (dx:30; dY:-210; W: 250; H: 340; anchor: ANC_middle);
//ZONE_ItemsPCInfo: TSDL_Rect = ( x: ItemsZoneRightTab; y:ScreenHeight Div 2 + 70; w: ItemsRightWidth; h: 30 );
ZONE_FHQTitle: DynamicRect = ( dx:-165; dy:-255; w:300; h:20; anchor: ANC_middle );
ZONE_FieldHQMenu: DynamicRect = ( dx:-280; dy:-210; w:292; h:340; anchor: ANC_middle );
ZONE_FHQMenu1: DynamicRect = ( dx:-280; dy:-210; w:292; h:180; anchor: ANC_middle );
ZONE_FHQMenu2: DynamicRect = ( dx:-280; dy: -15; w:292; h:145; anchor: ANC_middle );
ZONE_BPTotal: DynamicRect = (dx:-285; dY:-215; W: 570; H: 350; anchor: ANC_middle);
ZONE_BPHeader: DynamicRect = (dx:-280; dY:-210; W: 292; H: 40; anchor: ANC_middle);
ZONE_EqpMenu: DynamicRect = ( dx:-280; dy:-165; w:292; h:100; anchor: ANC_middle );
ZONE_InvMenu: DynamicRect = ( dx:-280; dy:-60; w:292; h:145; anchor: ANC_middle );
ZONE_BackpackInstructions: DynamicRect = (dx:-280; dY:90; W: 292; H: 40; anchor: ANC_middle);
ZONE_BPInfo: DynamicRect = (dx:30; dY:-210; W: 250; H: 340; anchor: ANC_middle);
CaptionWidth = Model_Status_Width;
ZONE_Caption: DynamicRect = ( dx: -( CaptionWidth div 2 ); dy: 20; w: CaptionWidth; h: Model_Status_Height; anchor: ANC_upper );
SubCaptionWidth = FontSize * 20;
ZONE_SubCaption: DynamicRect = ( dx: -( SubCaptionWidth div 2 ); dy: 35 + Model_Status_Height; w: SubCaptionWidth; h: FontSize + 2; anchor: ANC_upper );
// ZONE_CharacterInfo: TSDL_Rect = ( x: ScreenWidth div 2 - 275; y: ScreenHeight Div 2 - 200; w: 450; h: 295 );
SideInfoWidth = FontSize * 16;
SideInfoHeight = ( FontSize + 2 ) * 6;
ZONE_RightInfo: DynamicRect = ( dx: -SideInfoWidth - 10; dy: 15; w: SideInfoWidth; h: SideInfoHeight; anchor: ANC_upperright );
ZONE_LeftInfo: DynamicRect = ( dx: 10; dy: 15; w: SideInfoWidth; h: SideInfoHeight; anchor: ANC_upperleft );
ZONE_GetItemMenu: DynamicRect = ( dx:-100; dy:-125; w:200; h:250; anchor: ANC_middle );
//ZONE_UsagePrompt: TSDL_Rect = ( x:500; y:190; w:130; h:170 );
//ZONE_UsageMenu: TSDL_Rect = ( x:50; y:155; w:380; h:245 );
ZONE_MemoText: DynamicRect = ( dx:-175; dy:-150; w:350; h:200; anchor: ANC_middle );
ZONE_MemoMenu: DynamicRect = ( dx:-175; dy:55; w:350; h:50; anchor: ANC_middle );
ZONE_MemoTotal: DynamicRect = ( dx:-180; dy:-155; w:360; h:265; anchor: ANC_middle );
{ The SelectArenaMission zones. }
ZONE_SAMMenu: DynamicRect = ( dx:-200; dy:-190; w:400; h:200; anchor: ANC_middle );
ZONE_SAMText: DynamicRect = ( dx:-200; dy:25; w:400; h:50; anchor: ANC_middle );
ZONE_WorldMap: TSDL_Rect = ( x: ScreenWidth div 2 - 160; y: ScreenHeight div 2 - 160; W:320; H:320 );
ZONE_Clock: DynamicRect = ( dx: -150; dy: 30; w: 120; H:20; anchor: ANC_upperright );
Monologue_Width = 400;
Monologue_Height = 205;
ZONE_MonologueTotal: DynamicRect = ( dx: -210; dy: -150; w: Monologue_Width + 20; h: Monologue_Height + 20; anchor: ANC_middle );
ZONE_MonologueInfo: DynamicRect = ( dx: -200; dy: -150; w: Monologue_Width; h:30; anchor: ANC_middle );
ZONE_MonologueText: DynamicRect = ( dx: -200; dy: -110; w: Monologue_Width - 110; h: Monologue_Height - 40; anchor: ANC_middle );
ZONE_MonologuePortrait: DynamicRect = ( dx: 100; dy: -110; w: 100; h: 150; anchor: ANC_middle );
Arena_List_Width = 240;
Arena_List_Height = ScreenHeight - ( Dialog_Area_Height + 40 );
ZONE_ArenaPilotMenu: DynamicRect = ( dx: -390; dy: -290; w: Arena_List_Width; h: Arena_List_Height; anchor: ANC_middle );
ZONE_ArenaMechaMenu: DynamicRect = ( dx: -110; dy: -290; w: Arena_List_Width; h: Arena_List_Height; anchor: ANC_middle );
ZONE_ArenaInfo: DynamicRect = ( dx: 150; dy: -290; w: ItemsRightWidth; h: Arena_List_Height; anchor: ANC_middle );
ZONE_Title_Screen_Version: DynamicRect = ( dx:-70; dy:-25; w:100; h:20; anchor: ANC_lowerright );
ZONE_Title_Screen_Menu: DynamicRect = ( dx:-100; dy:50; w:200; h:115; anchor: ANC_middle );
ZONE_TitleLogo: DynamicRect = ( dx: -312; dy: -161; w: 624; h: 162; anchor: ANC_Middle );
Animation_Phase_Period = 6000;
var
Actual_Screen,Game_Screen: PSDL_Surface;
Game_Font,Small_Font,Info_Font: PTTF_Font;
Game_Sprites: SensibleSpritePtr;
Last_Clock_Update: QWord;
Animation_Phase: Integer;
Mouse_X, Mouse_Y: LongInt;
Cursor_Sprite: SensibleSpritePtr;
Console_History: SAttPtr;
Title_Screen,Title_Stars,Title_Logo: SensibleSpritePtr;
Ersatz_Mouse_Sprite: SensibleSpritePtr;
RK_NumKeys: PInt;
RK_KeyState: PUInt8;
Procedure DoFlip;
Procedure QuickText( msg: String; MyDest: TSDL_Rect; C: TSDL_Color; F: PTTF_Font );
Procedure QuickTextC( msg: String; MyDest: TSDL_Rect; C: TSDL_Color; F: PTTF_Font );
Procedure QuickTextRJ( msg: String; MyDest: TSDL_Rect; C: TSDL_Color; F: PTTF_Font );
Procedure DisposeSpriteList(var LList: SensibleSpritePtr);
Procedure RemoveSprite(var LMember: SensibleSpritePtr);
procedure DrawSprite( Spr: SensibleSpritePtr; MyDest: TSDL_Rect; Frame: Integer );
procedure DrawSprite( Spr: SensibleSpritePtr; MyCanvas: PSDL_Surface; MyDest: TSDL_Rect; Frame: Integer );
function LocateSprite( const Name, Color: String; W,H: Integer ): SensibleSpritePtr;
function LocateSprite( const Name: String; W,H: Integer ): SensibleSpritePtr;
Procedure CleanSpriteList;
function RPGKey: Char;
Procedure ClrZone( const Z: TSDL_Rect );
Procedure ClrScreen;
Procedure GetNextLine( var TheLine , msg , NextWord: String; Width: Integer; MyFont: PTTF_Font );
Function PrettyPrint( msg: string; Width: Integer; var FG: TSDL_Color; DoCenter: Boolean; MyFont: PTTF_Font ): PSDL_Surface;
Function PrettyPrint( msg: string; Width: Integer; var FG: TSDL_Color; DoCenter: Boolean ): PSDL_Surface;
Procedure CMessage( msg: String; Z: TSDL_Rect; C: TSDL_Color; MyFont: PTTF_Font );
Procedure CMessage( msg: String; Z: TSDL_Rect; C: TSDL_Color );
Procedure CMessage( msg: String; DZ: DynamicRect; C: TSDL_Color );
Procedure GameMSG( msg: string; Z: TSDL_Rect; C: TSDL_Color; MyFont: PTTF_Font );
Procedure GameMSG( msg: string; Z: TSDL_Rect; C: TSDL_Color );
Procedure GameMSG( msg: string; DZ: DynamicRect; C: TSDL_Color );
Function IsMoreKey( A: Char ): Boolean;
Procedure MoreKey;
Function TextLength( F: PTTF_Font; msg: String ): LongInt;
Function GetStringFromUser( Prompt: String; ReDrawer: RedrawProcedureType ): String;
Function MoreHighFirstLine( LList: SAttPtr ): Integer;
Procedure MoreText( LList: SAttPtr; FirstLine: Integer; ReDrawer: RedrawProcedureType );
Procedure RedrawConsole;
Procedure DialogMSG(msg: string);
Procedure ClearExtendedBorder( Dest: TSDL_Rect );
Procedure DrawBPBorder;
Procedure DrawGetItemBorder;
Procedure SetupInteractDisplay( TeamColor: TSDL_Color );
Procedure SetupServicesDisplay;
Procedure SetupFHQDisplay;
Procedure SetupMemoDisplay;
Procedure DrawMonologueBorder;
Procedure FillRectWithSprite( MyRect: TSDL_Rect; MySprite: SensibleSpritePtr; MyFrame,OffX,OffY: Integer );
Procedure FillRectWithSprite( MyRect: TSDL_Rect; MySprite: SensibleSpritePtr; MyFrame: Integer );
Procedure InfoBox( MyBox: TSDL_Rect );
Procedure InfoBox( MyBox: DynamicRect );
Procedure Idle_Display;
Procedure SetupArenaDisplay;
Procedure SetupArenaMissionMenu;
Procedure SetupConcertDisplay;
Procedure SetupTitleScreenDisplay;
implementation
const
WindowName: PChar = 'GearHead II';
IconName: PChar = 'GearHead II';
var
Infobox_Border,Infobox_Backdrop: SensibleSpritePtr;
Function DynamicRect.GetRect: TSDL_Rect;
{ Return the TSDL_Rect described by this DynamicRect, given the current }
{ screen size. }
var
MyRect: TSDL_Rect;
begin
MyRect.W := Self.W;
MyRect.H := Self.H;
MyRect.X := Game_Screen^.W * (self.anchor mod 3) div 2 + Self.DX;
MyRect.Y := Game_Screen^.H * (self.anchor div 3) div 2 + Self.DY;
GetRect := MyRect;
end;
Procedure DoFlip;
{ Flip out, man! This flips from the newly drawn screen to the physical screen. }
{ Go look up Double Buffering on Wikipedia for more info. }
var
MyDest: TSDL_Rect;
begin
if Ersatz_Mouse then begin
MyDest.X := Mouse_X;
MyDest.Y := Mouse_Y;
DrawSprite( Ersatz_Mouse_Sprite , MyDest , 0 );
end;
SDL_Flip( Game_Screen );
Animation_Phase := ( Animation_Phase + 1 ) mod Animation_Phase_Period;
end;
Procedure QuickText( msg: String; MyDest: TSDL_Rect; C: TSDL_Color; F: PTTF_Font );
{ Quickly draw some text to the screen, without worrying about }
{ line-splitting or justification or anything. }
var
pline: PChar;
MyText: PSDL_Surface;
begin
pline := QuickPCopy( msg );
MyText := TTF_RenderText_Solid( F , pline , C );
{$IFDEF LINUX}
if MyText <> Nil then SDL_SetColorKey( MyText , SDL_SRCCOLORKEY , SDL_MapRGB( MyText^.Format , 0 , 0, 0 ) );
{$ENDIF}
Dispose( pline );
SDL_BlitSurface( MyText , Nil , Game_Screen , @MyDest );
SDL_FreeSurface( MyText );
end;
Procedure QuickTextC( msg: String; MyDest: TSDL_Rect; C: TSDL_Color; F: PTTF_Font );
{ Quickly draw some text to the screen, without worrying about }
{ line-splitting or justification or anything. }
{ The text will be centered in the given zone. }
var
pline: PChar;
MyText: PSDL_Surface;
begin
if msg = '' then Exit;
pline := QuickPCopy( msg );
MyText := TTF_RenderText_Solid( F , pline , C );
{$IFDEF LINUX}
if MyText <> Nil then SDL_SetColorKey( MyText , SDL_SRCCOLORKEY , SDL_MapRGB( MyText^.Format , 0 , 0, 0 ) );
{$ENDIF}
Dispose( pline );
MyDest.X := MyDest.X + ( MyDest.W - MyText^.W ) div 2;
SDL_BlitSurface( MyText , Nil , Game_Screen , @MyDest );
SDL_FreeSurface( MyText );
end;
Procedure QuickTextRJ( msg: String; MyDest: TSDL_Rect; C: TSDL_Color; F: PTTF_Font );
{ Quickly draw some text to the screen, without worrying about }
{ line-splitting or justification or anything. }
{ This variation on the procedure is right-justified. }
var
pline: PChar;
MyText: PSDL_Surface;
begin
pline := QuickPCopy( msg );
MyText := TTF_RenderText_Solid( F , pline , C );
{$IFDEF LINUX}
if MyText <> Nil then SDL_SetColorKey( MyText , SDL_SRCCOLORKEY , SDL_MapRGB( MyText^.Format , 0 , 0, 0 ) );
{$ENDIF}
Dispose( pline );
MyDest.X := MyDest.X - MyText^.W;
SDL_BlitSurface( MyText , Nil , Game_Screen , @MyDest );
SDL_FreeSurface( MyText );
end;
Procedure DrawAnimImage( Image,Canvas: PSDL_Surface; W,H,Frame: Integer; var MyDest: TSDL_Rect );
{ This procedure is modeled after the command from Blitz Basic. }
var
MySource: TSDL_Rect;
begin
MySource.W := W;
MySource.H := H;
if W > Image^.W then W := Image^.W;
MySource.X := ( Frame mod ( Image^.W div W ) ) * W;
MySource.Y := ( Frame div ( Image^.W div W ) ) * H;
SDL_BlitSurface( Image , @MySource , Canvas , @MyDest );
end;
Function ScaleColorValue( V , I: Integer ): Byte;
{ Scale a color value. }
begin
V := ( V * I ) div 200;
if V > 255 then V := 255;
ScaleColorValue := V;
end;
Function MakeSwapBitmap( MyImage: PSDL_Surface; RSwap,YSwap,GSwap: PSDL_Color ): PSDL_Surface;
{ Given a bitmap, create an 8-bit copy with pure colors. }
{ 0 : Transparent (0,0,255) }
{ 1 - 63 : Grey Scale }
{ 64 - 127 : Pure Red }
{ 128 - 191 : Pure Yellow }
{ 192 - 255 : Pure Green }
{ Then, swap those colors out for the requested colors. }
var
MyPal: Array [0..255] of TSDL_Color;
T: Integer;
MyImage2: PSDL_Surface;
begin
{ Initialize the palette. }
for t := 1 to 64 do begin
MyPal[ T - 1 ].r := ( t * 4 ) - 1;
MyPal[ T - 1 ].g := ( t * 4 ) - 1;
MyPal[ T - 1 ].b := ( t * 4 ) - 1;
MyPal[ T + 63 ].r := ( t * 4 ) - 1;
MyPal[ T + 63 ].g := 0;
MyPal[ T + 63 ].b := 0;
MyPal[ T + 127 ].r := ( t * 4 ) - 1;
MyPal[ T + 127 ].g := ( t * 4 ) - 1;
MyPal[ T + 127 ].b := 0;
MyPal[ T + 191 ].r := 0;
MyPal[ T + 191 ].g := ( t * 4 ) - 1;
MyPal[ T + 191 ].b := 0;
end;
MyPal[ 0 ].r := 0;
MyPal[ 0 ].g := 0;
MyPal[ 0 ].b := 255;
{ Create replacement surface. }
MyImage2 := SDL_CreateRGBSurface( SDL_SWSURFACE , MyImage^.W , MyImage^.H , 8 , 0 , 0 , 0 , 0 );
SDL_SetPalette( MyImage2 , SDL_LOGPAL or SDL_PHYSPAL , MyPal , 0 , 256 );
SDL_FillRect( MyImage2 , Nil , SDL_MapRGB( MyImage2^.Format , 0 , 0 , 255 ) );
SDL_SetColorKey( MyImage2 , SDL_SRCCOLORKEY or SDL_RLEACCEL , SDL_MapRGB( MyImage2^.Format , 0 , 0, 255 ) );
{ Blit from the original to the copy. }
SDL_BlitSurface( MyImage , Nil , MyImage2 , Nil );
{ Redefine the palette. }
for t := 1 to 64 do begin
MyPal[ T + 63 ].r := ScaleColorValue( RSwap^.R , t * 4 );
MyPal[ T + 63 ].g := ScaleColorValue( RSwap^.G , t * 4 );
MyPal[ T + 63 ].b := ScaleColorValue( RSwap^.B , t * 4 );
MyPal[ T + 127 ].r := ScaleColorValue( YSwap^.R , t * 4 );
MyPal[ T + 127 ].g := ScaleColorValue( YSwap^.G , t * 4 );
MyPal[ T + 127 ].b := ScaleColorValue( YSwap^.B , t * 4 );
MyPal[ T + 191 ].r := ScaleColorValue( GSwap^.R , t * 4 );
MyPal[ T + 191 ].g := ScaleColorValue( GSwap^.G , t * 4 );
MyPal[ T + 191 ].b := ScaleColorValue( GSwap^.B , t * 4 );
end;
SDL_SetPalette( MyImage2 , SDL_LOGPAL or SDL_PHYSPAL , MyPal , 0 , 256 );
MakeSwapBitmap := MyImage2;
end;
Procedure GenerateColor( var ColorString: String; var ColorStruct: TSDL_Color );
{ Generate the color from the string. }
var
n: Integer;
begin
n := ExtractValue( ColorString );
if n > 255 then n := 255;
ColorStruct.R := n;
n := ExtractValue( ColorString );
if n > 255 then n := 255;
ColorStruct.G := n;
n := ExtractValue( ColorString );
if n > 255 then n := 255;
ColorStruct.B := n;
end;
Function LocateSpriteByNameColor( const name,color: String ): SensibleSpritePtr;
{ Locate the sprite which matches the name provided. }
{ If no such sprite exists, return Nil. }
var
S: SensibleSpritePtr;
begin
S := Game_Sprites;
while ( S <> Nil ) and ( ( S^.Name <> name ) or ( S^.Color <> Color ) ) do begin
S := S^.Next;
end;
LocateSpriteByNameColor := S;
end;
Function NewSprite: SensibleSpritePtr;
{ Add an empty sprite description to the list. }
var
it: SensibleSpritePtr;
begin
New(it);
if it = Nil then exit( Nil );
{Initialize values.}
it^.Next := Game_Sprites;
Game_Sprites := it;
NewSprite := it;
end;
Function AddSprite( name, color: String; W,H: Integer ): SensibleSpritePtr;
{ Add a new element to the Sprite List. Load the image for this sprite }
{ from disk, if possible. }
var
fname: PChar;
it: SensibleSpritePtr;
tmp: PSDL_Surface;
RSwap,YSwap,GSwap: TSDL_Color;
begin
{Allocate memory for our new element.}
it := NewSprite;
if it = Nil then Exit( Nil );
it^.Name := Name;
it^.Color := Color;
it^.W := W;
it^.H := H;
name := FSearch( name , Graphics_Directory );
if name <> '' then begin
fname := QuickPCopy( name );
{ Attempt to load the image. }
it^.Img := IMG_Load( fname );
if it^.Img <> Nil then begin
{ Set transparency color. }
SDL_SetColorKey( it^.Img , SDL_SRCCOLORKEY or SDL_RLEACCEL , SDL_MapRGB( it^.Img^.Format , 0 , 0, 255 ) );
{ If a color swap has been specified, handle that here. }
if Color <> '' then begin
GenerateColor( Color , RSwap );
GenerateColor( Color , YSwap );
GenerateColor( Color , GSwap );
tmp := MakeSwapBitmap( it^.Img , @RSwap , @YSwap , @GSwap );
SDL_FreeSurface( it^.Img );
it^.img := tmp;
end;
{ Convert to the screen mode. }
{ This will make blitting far quicker. }
tmp := SDL_ConvertSurface( it^.Img , Game_Screen^.Format , SDL_SRCCOLORKEY );
SDL_FreeSurface( it^.Img );
it^.Img := TMP;
end;
Dispose( fname );
end else begin
it^.Img := Nil;
end;
{Return a pointer to the new element.}
AddSprite := it;
end;
Procedure DisposeSpriteList(var LList: SensibleSpritePtr);
{Dispose of the list, freeing all associated system resources.}
var
LTemp: SensibleSpritePtr;
begin
while LList <> Nil do begin
LTemp := LList^.Next;
if LList^.Img <> Nil then SDL_FreeSurface( LList^.Img );
Dispose(LList);
LList := LTemp;
end;
end;
Procedure RemoveSprite(var LMember: SensibleSpritePtr);
{Locate and extract member LMember from list LList.}
{Then, dispose of LMember.}
var
a,b: SensibleSpritePtr;
begin
{Initialize A and B}
B := Game_Sprites;
A := Nil;
{Locate LMember in the list. A will thereafter be either Nil,}
{if LMember if first in the list, or it will be equal to the}
{element directly preceding LMember.}
while (B <> LMember) and (B <> Nil) do begin
A := B;
B := B^.next;
end;
if B = Nil then begin
{Major FUBAR. The member we were trying to remove can't}
{be found in the list.}
writeln('ERROR- RemoveLink asked to remove a link that doesnt exist.');
end
else if A = Nil then begin
{There's no element before the one we want to remove,}
{i.e. it's the first one in the list.}
Game_Sprites := B^.Next;
B^.Next := Nil;
DisposeSpriteList(B);
end
else begin
{We found the attribute we want to delete and have another}
{one standing before it in line. Go to work.}
A^.next := B^.next;
B^.Next := Nil;
DisposeSpriteList(B);
end;
LMember := Nil;
end;
procedure DrawSprite( Spr: SensibleSpritePtr; MyDest: TSDL_Rect; Frame: Integer );
{ Draw a sensible sprite. }
begin
{ First make sure that we have some valid sprite data... }
if ( Spr <> Nil ) and ( Spr^.Img <> Nil ) then begin
{ All the info checks out. Print it. }
DrawAnimImage( Spr^.Img , Game_Screen , Spr^.W , Spr^.H , Frame , MyDest );
end;
end;
procedure DrawSprite( Spr: SensibleSpritePtr; MyCanvas: PSDL_Surface; MyDest: TSDL_Rect; Frame: Integer );
{ Draw a sensible sprite to an arbitrary canvas. }
begin
{ First make sure that we have some valid sprite data... }
if ( Spr <> Nil ) and ( Spr^.Img <> Nil ) then begin
{ All the info checks out. Print it. }
DrawAnimImage( Spr^.Img , MyCanvas , Spr^.W , Spr^.H , Frame , MyDest );
end;
end;
function LocateSprite( const Name,Color: String; W,H: Integer ): SensibleSpritePtr;
{ Try to locate the requested sprite in the requested color. If the sprite }
{ is already loaded, then return its address. If not, load it and color it. }
var
S: SensibleSpritePtr;
begin
{ First, find the sprite. If by some strange chance it hasn't been }
{ loaded yet, load it now. }
S := LocateSpriteByNameColor( Name , Color );
if S = Nil then S := AddSprite( Name , Color , W , H );
{ Set the width and height fields. }
S^.W := W;
S^.H := H;
LocateSprite := S;
end;
function LocateSprite( const Name: String; W,H: Integer ): SensibleSpritePtr;
{ Find the requested sprite, either in memory or from disk. }
var
S: SensibleSpritePtr;
begin
{ First, find the sprite. If by some strange chance it hasn't been }
{ loaded yet, load it now. }
LocateSprite := LocateSprite( Name , '' , W , H );
end;
Procedure CleanSpriteList;
{ Go through the sprite list and remove those sprites we aren't likely to }
{ need immediately... i.e., erase those ones which have a COLOR string defined. }
var
S,S2: SensibleSpritePtr;
begin
S := Game_Sprites;
while S <> Nil do begin
S2 := S^.Next;
if S^.Color <> '' then begin
RemoveSprite( S );
end;
S := S2;
end;
end;
function RPGKey: Char;
{ Read a readable key from the keyboard and return its ASCII value. }
{ This function will always return within a close approximation of 30ms }
{ from the last time it was called. It will also update the array of }
{ keypresses. }
var
a: String;
event : TSDL_Event;
Procedure ProcessThatEvent;
{ An event has been recieved. Process it. }
var
width,height: Integer;
begin
if event.type_ = SDL_KEYDOWN then begin
{ Check to see if it was an ASCII character we recieved. }
case event.key.keysym.sym of
SDLK_Up,SDLK_KP8: a := RPK_Up;
SDLK_Down,SDLK_KP2: a := RPK_Down;
SDLK_Left,SDLK_KP4: a := RPK_Left;
SDLK_Right,SDLK_KP6: a := RPK_Right;
SDLK_KP7: a := RPK_UpLeft;
SDLK_KP9: a := RPK_UpRight;
SDLK_KP1: a := RPK_DownLeft;
SDLK_KP3: a := RPK_DownRight;
SDLK_Backspace: a := #8;
SDLK_KP_Enter: a := #10;
SDLK_KP5: a := '5';
else
if( event.key.keysym.unicode < $80 ) and ( event.key.keysym.unicode > 0 ) then begin
a := Char( event.key.keysym.unicode );
end;
end;
end else if ( event.type_ = SDL_MOUSEButtonDown ) then begin
{ Return a mousebutton event, and call DoFlip to set the mouse position }
{ variables. }
if event.button.button = SDL_BUTTON_LEFT then begin
a := RPK_MouseButton;
end else if event.button.button = SDL_BUTTON_RIGHT then begin
a := RPK_RightButton;
end;
end else if event.type_ = SDL_VIDEORESIZE then begin
width := event.resize.w;
if width < 800 then width := 800;
height := event.resize.h;
if height < 600 then height := 600;
Game_Screen := SDL_SetVideoMode(width, height, 0, SDL_HWSURFACE or SDL_DoubleBuf or SDL_RESIZABLE );
end;
end;
var
D: QWord;
PResult: Integer;
begin
if Minimal_Screen_Refresh then begin
a := RPK_TimeEvent;
repeat
if SDL_WaitEvent( @event ) = 1 then begin
ProcessThatEvent;
end;
until a <> RPK_TimeEvent;
end else begin
{ Go through the accumulated events looking for good ones. }
a := RPK_TimeEvent;
repeat
PResult := SDL_PollEvent( @event );
if PResult = 1 then begin
{ See if this event is a keyboard one... }
ProcessThatEvent;
end;
until ( PResult <> 1 ) or ( a <> RPK_TimeEvent );
{ If necessary, do a delay. }
if SDL_GetTicks < ( Last_Clock_Update + 20 ) then begin
D := Last_Clock_Update + 30 - SDL_GetTicks;
SDL_Delay( D );
end;
Last_Clock_Update := SDL_GetTicks + 30;
end;
RK_KeyState := SDL_GetKeyState( RK_NumKeys );
SDL_GetMouseState( Mouse_X , Mouse_Y );
if a <> '' then RPGKey := a[1]
else RPGKey := 'Z';
end;
Procedure ClrZone( const Z: TSDL_Rect );
{ Clear the specified screen zone. }
begin
SDL_FillRect( game_screen , @Z , SDL_MapRGB( Game_Screen^.Format , 0 , 0 , 0 ) );
end;
Procedure ClrScreen;
{ Clear the specified screen zone. }
begin
SDL_FillRect( game_screen , Nil , SDL_MapRGBA( Game_Screen^.Format , 0 , 0 , 255 , 0 ) );
end;
Function TextLength( F: PTTF_Font; msg: String ): LongInt;
{ Determine how long "msg" will be using the default "game_font". }
var
pmsg: PChar; { Gotta convert to pchar, pain in the ass... }
W,Y: LongInt; { W means width I guess... Y is anyone's guess. Height? }
begin
{ Convert the string to a pchar. }
pmsg := QuickPCopy( msg );
{ Call the alleged size calculation function. }
TTF_SizeText( F , pmsg , W , Y );
{ get rid of the PChar, since it's served its usefulness. }
Dispose( pmsg );
TextLength := W;
end;
Procedure GetNextLine( var TheLine , msg , NextWord: String; Width: Integer; MyFont: PTTF_Font );
{ Get a line of text of maximum width "Width". }
var
LC: Boolean; { Loop Condition. So I wasn't very creative when I named it, so what? }
begin
{ Loop condition starts out as TRUE. }
LC := True;
{ Start building the line. }
repeat
NextWord := ExtractWord( Msg );
if TextLength( MyFont , THEline + ' ' + NextWord) < Width then
THEline := THEline + ' ' + NextWord
else
LC := False;
until (not LC) or (NextWord = '') or ( TheLine[Length(TheLine)] = #13 );
{ If the line ended due to a line break, deal with it. }
if ( TheLine[Length(TheLine)] = #13 ) then begin
{ Display the line break as a space. }
TheLine[Length(TheLine)] := ' ';
NextWord := ExtractWord( msg );
end;
end;
Function PrettyPrint( msg: string; Width: Integer; var FG: TSDL_Color; DoCenter: Boolean; MyFont: PTTF_Font ): PSDL_Surface;
{ Create a SDL_Surface containing all the text within "msg" formatted }
{ in lines of no longer than "width" pixels. Sound simple? Mostly just }
{ tedious, I'm afraid. }
var
SList,SA: SAttPtr;
S_Total,S_Temp: PSDL_Surface;
MyDest: SDL_Rect;
pline: PChar;
NextWord: String;
THELine: String; {The line under construction.}
begin
{ CLean up the message a bit. }
DeleteWhiteSpace( msg );
if msg = '' then Exit( Nil );
{THELine = The first word in this iteration}
THELine := ExtractWord( msg );
NextWord := '';
SList := Nil;
{Start the main processing loop.}
while TheLine <> '' do begin
GetNextLine( TheLine , msg , NextWord , Width, MyFont );
{ Output the line. }
{ Next append it to whatever has already been created. }
StoreSAtt( SList , TheLine );
{ Prepare for the next iteration. }
TheLine := NextWord;
end; { while TheLine <> '' }
{ Create a bitmap for the message. }
if SList <> Nil then begin
{ Create a big bitmap to hold everything. }
{ S_Total := SDL_CreateRGBSurface( SDL_SWSURFACE , width , TTF_FontLineSkip( MyFont ) * NumSAtts( SList ) , 16 , 0 , 0 , 0 , 0 );
} S_Total := SDL_CreateRGBSurface( SDL_SWSURFACE , width , TTF_FontLineSkip( MyFont ) * NumSAtts( SList ) , 32 , $FF000000 , $00FF0000 , $0000FF00 , $000000FF );
MyDest.X := 0;
MyDest.Y := 0;
{ Add each stored string to the bitmap. }
SA := SList;
while SA <> Nil do begin
pline := QuickPCopy( SA^.Info );
S_Temp := TTF_RenderText_Solid( MyFont , pline , fg );
{$IFDEF LINUX}
SDL_SetColorKey( S_Temp , SDL_SRCCOLORKEY , SDL_MapRGB( S_Temp^.Format , 0 , 0, 0 ) );
{$ENDIF}
Dispose( pline );
{ We may or may not be required to do centering of the text. }
if DoCenter then begin
MyDest.X := ( Width - TextLength( MyFont , SA^.Info ) ) div 2;
end else begin
MyDest.X := 0;
end;
SDL_BlitSurface( S_Temp , Nil , S_Total , @MyDest );
SDL_FreeSurface( S_Temp );
MyDest.Y := MyDest.Y + TTF_FontLineSkip( MyFont );
SA := SA^.Next;
end;
DisposeSAtt( SList );
end else begin
S_Total := Nil;
end;
PrettyPrint := S_Total;
end;
Function PrettyPrint( msg: string; Width: Integer; var FG: TSDL_Color; DoCenter: Boolean ): PSDL_Surface;
{ Overloaded version of above, using default font. }
begin
PrettyPrint := PrettyPrint( msg, width, FG, DoCenter, Game_Font );
end;
Procedure CMessage( msg: String; Z: TSDL_Rect; C: TSDL_Color; MyFont: PTTF_Font );
{ Print a message to the screen, centered in the requested rect. }
{ Clear the specified zone before doing so. }
var
MyText: PSDL_Surface;
MyDest: TSDL_Rect;
begin
MyText := PrettyPrint( msg , Z.W , C , True, MyFont );
if MyText <> Nil then begin
MyDest := Z;
MyDest.Y := MyDest.Y + ( Z.H - MyText^.H ) div 2;
SDL_SetClipRect( Game_Screen , @Z );
SDL_BlitSurface( MyText , Nil , Game_Screen , @MyDest );
SDL_FreeSurface( MyText );
SDL_SetClipRect( Game_Screen , Nil );
end;
end;
Procedure CMessage( msg: String; Z: TSDL_Rect; C: TSDL_Color );
{ Use the default font. }
begin
CMessage( msg, Z, C, Game_Font );
end;
Procedure CMessage( msg: String; DZ: DynamicRect; C: TSDL_Color );
{ Print a message centered in a DynamicRect. }
begin
CMessage( msg, DZ.GetRect(), C );
end;
Procedure GameMSG( msg: string; Z: TSDL_Rect; C: TSDL_Color; MyFont: PTTF_Font );
{ Print a game message. }
var
MyText: PSDL_Surface;
begin
MyText := PrettyPrint( msg , Z.W , C , True, MyFont );
if MyText <> Nil then begin
SDL_SetClipRect( Game_Screen , @Z );
SDL_BlitSurface( MyText , Nil , Game_Screen , @Z );