{ Ported to FPC by Nikolay Nikolov (nickysn@users.sourceforge.net) } { Palette example for OpenPTC 1.0 C++ implementation Copyright (c) Glenn Fiedler (ptc@gaffer.org) This source code is in the public domain } program PaletteExample; {$MODE objfpc} uses ptc; var console: TPTCConsole = nil; surface: TPTCSurface = nil; format: TPTCFormat = nil; palette: TPTCPalette = nil; data: array [0..255] of Uint32; pixels: PUint8; width, height: Integer; i: Integer; x, y, index: Integer; begin try try { create console } console := TPTCConsole.Create; { create format } format := TPTCFormat.Create(8); { open console } console.open('Palette example', format); { create surface } surface := TPTCSurface.Create(console.width, console.height, format); { create palette } palette := TPTCPalette.Create; { generate palette } for i := 0 to 255 do data[i] := i; { load palette data } palette.load(data); { set console palette } console.palette(palette); { set surface palette } surface.palette(palette); { loop until a key is pressed } while not console.KeyPressed do begin { lock surface } pixels := surface.lock; try { get surface dimensions } width := surface.width; height := surface.height; { draw random pixels } for i := 1 to 100 do begin { get random position } x := Random(width); y := Random(height); { get random color index } index := Random(256); { draw color [index] at position [x,y] } pixels[x + y * width] := index; end; finally { unlock surface } surface.unlock; end; { copy to console } surface.copy(console); { update console } console.update; end; finally console.close; console.Free; surface.Free; palette.Free; format.Free; end; except on error: TPTCError do { report error } error.report; end; end.