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| program 2;
uses Crt, Dos, Graph;
type
tPoint = object
x, y: Integer;
c: Word;
procedure Init(parameter_x, parameter_y: Integer; parameter_c: Word);
procedure SetX(parameter_x: Integer);
procedure SetY(parameter_y: Integer);
function GetX: Integer;
function GetY: Integer;
procedure Draw;
procedure Hide;
procedure Move(parameter_x, parameter_y: Integer);
end;
procedure tPoint.Init(parameter_x, parameter_y: Integer; parameter_c: Word);
begin
x := parameter_x;
y := parameter_y;
c := parameter_c;
end;
procedure tPoint.SetX(parameter_x: Integer);
begin
x := parameter_x;
end;
procedure tPoint.SetY(parameter_y: Integer);
begin
y := parameter_y;
end;
function tPoint.GetX;
begin
GetX := x;
end;
function tPoint.GetY;
begin
GetY := y;
end;
procedure tPoint.Draw;
begin
PutPixel(x, y, c);
end;
procedure tPoint.Hide;
begin
PutPixel(x, y, GetBkColor);
end;
procedure tPoint.Move(parameter_x, parameter_y: Integer);
begin
Hide;
x := parameter_x;
y := parameter_y;
Draw;
end;
const
n = 100;
var
m: array[1..n] of tPoint;
procedure Move(dx, dy: Integer);
var
i: Integer;
x: Integer;
y: Integer;
begin
for i := 1 to n do begin
x := m[i].GetX;
Inc(x, dx);
if x < 0 then
x := GetMaxX + x + 1
else if x > GetMaxX then
x := x mod GetMaxX;
y := m[i].GetY;
Inc(y, dy);
if y < 0 then
y := GetMaxY + y + 1
else if y > GetMaxY then
y := y mod GetMaxY;
m[i].Move(x, y);
end;
end;
const
h = 60;
var
gd, gm: Integer;
i: Integer;
Q: Char;
a: Char;
str: String;
dx, dy: Integer;
begin
gd := 9;
gm := 2;
InitGraph(gd, gm, 'd:\pascal\bgi');
Randomize;
for i := 1 to n do
m[i].Init(Random(GetMaxX), Random(GetMaxY), Random(15) + 1);
RestoreCrtMode;
Q := 'y';
while Q <> 'n' do begin
Writeln('Rezhim: s - sluchainy');
Write('k - klaviatura: ');
Readln(str);
SetGraphMode(gm);
for i := 1 to n do
m[i].Draw;
if str = 's' then begin
repeat
dx := Random(60) - 30;
dy := Random(60) - 30;
Move(dx, dy);
Delay(1000);
until KeyPressed;
while KeyPressed do
ReadKey;
end
else
repeat
a := ReadKey;
if a = #0 then begin
a := ReadKey;
case a of
#75: begin
dx := -h; dy := 0;
end;
#77: begin
dx := h; dy := 0;
end;
#72: begin
dx := 0; dy := -h;
end;
#80: begin
dx := 0; dy := h;
end;
else begin
dx := 0; dy := 0;
end;
end;
Move(dx, dy);
end;
until a = #27;
RestoreCrtMode;
Write('Prodolzhit? (y/n) ');
Readln(Q);
end;
CloseGraph;
ClrScr;
end. |
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