ncursesw-morphos/Ada95/samples/rain.adb

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1998-03-01 12:21:12 +08:00
------------------------------------------------------------------------------
-- --
-- GNAT ncurses Binding Samples --
-- --
-- Rain --
-- --
-- B O D Y --
-- --
------------------------------------------------------------------------------
-- Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. --
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-- --
-- Permission is hereby granted, free of charge, to any person obtaining a --
-- copy of this software and associated documentation files (the --
-- "Software"), to deal in the Software without restriction, including --
-- without limitation the rights to use, copy, modify, merge, publish, --
-- distribute, distribute with modifications, sublicense, and/or sell --
-- copies of the Software, and to permit persons to whom the Software is --
-- furnished to do so, subject to the following conditions: --
-- --
-- The above copyright notice and this permission notice shall be included --
-- in all copies or substantial portions of the Software. --
-- --
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS --
-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF --
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. --
-- IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, --
-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR --
-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR --
-- THE USE OR OTHER DEALINGS IN THE SOFTWARE. --
-- --
-- Except as contained in this notice, the name(s) of the above copyright --
-- holders shall not be used in advertising or otherwise to promote the --
-- sale, use or other dealings in this Software without prior written --
-- authorization. --
------------------------------------------------------------------------------
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-- Author: Laurent Pautet <pautet@gnat.com>
-- Modified by: Juergen Pfeifer, 1997
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-- Version Control
-- $Revision: 1.8 $
-- $Date: 2008/08/30 21:38:07 $
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-- Binding Version 01.00
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------------------------------------------------------------------------------
-- --
with ncurses2.util; use ncurses2.util;
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with Ada.Numerics.Float_Random; use Ada.Numerics.Float_Random;
with Status; use Status;
with Terminal_Interface.Curses; use Terminal_Interface.Curses;
procedure Rain is
Visibility : Cursor_Visibility;
subtype X_Position is Line_Position;
subtype Y_Position is Column_Position;
Xpos : array (1 .. 5) of X_Position;
Ypos : array (1 .. 5) of Y_Position;
done : Boolean;
c : Key_Code;
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N : Integer;
G : Generator;
Max_X, X : X_Position;
Max_Y, Y : Y_Position;
procedure Next (J : in out Integer);
procedure Cursor (X : X_Position; Y : Y_Position);
procedure Next (J : in out Integer) is
begin
if J = 5 then
J := 1;
else
J := J + 1;
end if;
end Next;
procedure Cursor (X : X_Position; Y : Y_Position) is
begin
Move_Cursor (Line => X, Column => Y);
end Cursor;
pragma Inline (Cursor);
begin
Init_Screen;
Set_NL_Mode;
Set_Echo_Mode (False);
Visibility := Invisible;
Set_Cursor_Visibility (Visibility);
Set_Timeout_Mode (Standard_Window, Non_Blocking, 0);
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Max_X := Lines - 5;
Max_Y := Columns - 5;
for I in Xpos'Range loop
Xpos (I) := X_Position (Float (Max_X) * Random (G)) + 2;
Ypos (I) := Y_Position (Float (Max_Y) * Random (G)) + 2;
end loop;
N := 1;
done := False;
while not done and Process.Continue loop
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X := X_Position (Float (Max_X) * Random (G)) + 2;
Y := Y_Position (Float (Max_Y) * Random (G)) + 2;
Cursor (X, Y);
Add (Ch => '.');
Cursor (Xpos (N), Ypos (N));
Add (Ch => 'o');
--
Next (N);
Cursor (Xpos (N), Ypos (N));
Add (Ch => 'O');
--
Next (N);
Cursor (Xpos (N) - 1, Ypos (N));
Add (Ch => '-');
Cursor (Xpos (N), Ypos (N) - 1);
Add (Str => "|.|");
Cursor (Xpos (N) + 1, Ypos (N));
Add (Ch => '-');
--
Next (N);
Cursor (Xpos (N) - 2, Ypos (N));
Add (Ch => '-');
Cursor (Xpos (N) - 1, Ypos (N) - 1);
Add (Str => "/\\");
Cursor (Xpos (N), Ypos (N) - 2);
Add (Str => "| O |");
Cursor (Xpos (N) + 1, Ypos (N) - 1);
Add (Str => "\\/");
Cursor (Xpos (N) + 2, Ypos (N));
Add (Ch => '-');
--
Next (N);
Cursor (Xpos (N) - 2, Ypos (N));
Add (Ch => ' ');
Cursor (Xpos (N) - 1, Ypos (N) - 1);
Add (Str => " ");
Cursor (Xpos (N), Ypos (N) - 2);
Add (Str => " ");
Cursor (Xpos (N) + 1, Ypos (N) - 1);
Add (Str => " ");
Cursor (Xpos (N) + 2, Ypos (N));
Add (Ch => ' ');
Xpos (N) := X;
Ypos (N) := Y;
c := Getchar;
case c is
when Character'Pos ('q') => done := True;
when Character'Pos ('Q') => done := True;
when Character'Pos ('s') => Set_NoDelay_Mode (Standard_Window, False);
when Character'Pos (' ') => Set_NoDelay_Mode (Standard_Window, True);
when others => null;
end case;
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Nap_Milli_Seconds (50);
end loop;
Visibility := Normal;
Set_Cursor_Visibility (Visibility);
End_Windows;
Curses_Free_All;
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end Rain;