ncurses 4.2

[ncurses.git] / Ada95 / samples / rain.adb

diff --git a/Ada95/samples/rain.adb b/Ada95/samples/rain.adb
new file mode 100644 (file)
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+++ b/Ada95/samples/rain.adb
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+------------------------------------------------------------------------------
+--                                                                          --
+--                       GNAT ncurses Binding Samples                       --
+--                                                                          --
+--                                   Rain                                   --
+--                                                                          --
+--                                 B O D Y                                  --
+--                                                                          --
+------------------------------------------------------------------------------
+-- Copyright (c) 1998 Free Software Foundation, Inc.                        --
+--                                                                          --
+-- 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.                                                           --
+------------------------------------------------------------------------------
+--  Author: Laurent Pautet <pautet@gnat.com> 1997 (modified by J.Pfeifer)
+--  Version Control
+--  $Revision: 1.3 $
+--  Binding Version 00.93
+------------------------------------------------------------------------------
+--                                                                          --
+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;
+
+   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);
+
+   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;
+   while Process.Continue loop
+
+      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;
+
+      Refresh;
+      Nap_Milli_Seconds (50);
+   end loop;
+
+   Visibility := Normal;
+   Set_Cursor_Visibility (Visibility);
+   End_Windows;
+
+end Rain;