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-- F416A00.A
--
-- Grant of Unlimited Rights
--
-- The Ada Conformity Assessment Authority (ACAA) holds unlimited
-- rights in the software and documentation contained herein. Unlimited
-- rights are the same as those granted by the U.S. Government for older
-- parts of the Ada Conformity Assessment Test Suite, and are defined
-- in DFAR 252.227-7013(a)(19). By making this public release, the ACAA
-- intends to confer upon all recipients unlimited rights equal to those
-- held by the ACAA. These rights include rights to use, duplicate,
-- release or disclose the released technical data and computer software
-- in whole or in part, in any manner and for any purpose whatsoever, and
-- to have or permit others to do so.
--
-- DISCLAIMER
--
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
-- DISCLOSED ARE AS IS. THE ACAA MAKES NO EXPRESS OR IMPLIED
-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
-- PARTICULAR PURPOSE OF SAID MATERIAL.
--
-- Notice
--
-- The ACAA has created and maintains the Ada Conformity Assessment Test
-- Suite for the purpose of conformity assessments conducted in accordance
-- with the International Standard ISO/IEC 18009 - Ada: Conformity
-- assessment of a language processor. This test suite should not be used
-- to make claims of conformance unless used in accordance with
-- ISO/IEC 18009 and any applicable ACAA procedures.
--*
--
-- FOUNDATION DESCRIPTION:
-- This foundation provides basic operations to test the declaration and
-- use of the generalized indexing aspects Constant_Indexing and
-- Variable_Indexing.
--
-- The foundation is intended to demonstrate a sprite-drawing package,
-- where sprites are defined in a window object, and can either be
-- accessed by name or by location (where the location is given with
-- X and Y coordinates) in a particular window object. Constant_Indexings
-- and Variable_Indexings are defined to access the sprites in a window.
--
-- CHANGE HISTORY:
-- 11 May 2015 RLB Created foundation.
-- 14 May 2015 RLB Fixed bug in by location routines.
package F416A00 is
type Window is tagged private
with Constant_Indexing => CRef,
Variable_Indexing => VRef;
type Kind is (Player, Ghost, Power_Pill);
type Color is (White, Yellow, Orange, Pink, Red, Cyan, Blue, Green, Violet);
type Sprite is record
K : aliased Kind;
C : Color;
X, Y : Natural;
end record;
subtype Name is String(1..6);
Missing_Error : exception;
type Ref_Rec (D : access Sprite) is null record
with Implicit_Dereference => D;
function CRef (W : in Window; N : in Name) return Sprite;
function VRef (W : aliased in out Window; N : in Name) return Ref_Rec;
function CRef (W : in Window; X, Y : in Natural) return Sprite;
function VRef (W : aliased in out Window; X, Y : in Natural)
return Ref_Rec;
procedure Create_Sprite (W : in out Window;
N : in Name;
X : in Natural;
Y : in Natural;
K : in Kind;
C : in Color);
private
type Tuple is record
N : Name;
S : aliased Sprite;
end record;
type SArray is array (1..10) of Tuple;
type Window is tagged record
Count : Natural := 0;
Sprites : SArray;
end record;
end F416A00;
with TcTouch;
package body F416A00 is
function CRef (W : in Window; N : in Name) return Sprite is
begin
TcTouch.Touch('c'); TcTouch.Touch(N(1)); ---------------
for I in 1 .. W.Count loop
if W.Sprites(I).N = N then
return W.Sprites(I).S;
end if;
end loop;
raise Missing_Error;
end CRef;
function VRef (W : aliased in out Window; N : in Name) return Ref_Rec is
begin
TcTouch.Touch('v'); TcTouch.Touch(N(1)); ---------------
for I in 1 .. W.Count loop
if W.Sprites(I).N = N then
return (D => W.Sprites(I).S'Access);
end if;
end loop;
raise Missing_Error;
end VRef;
function CRef (W : in Window; X, Y : in Natural) return Sprite is
begin
TcTouch.Touch('d'); ---------------
TcTouch.Touch(Character'Val(X - 1 + Character'Pos('A')));
TcTouch.Touch(Character'Val(Y - 1 + Character'Pos('A')));
for I in 1 .. W.Count loop
if W.Sprites(I).S.X = X and then
W.Sprites(I).S.Y = Y then
return W.Sprites(I).S;
end if;
end loop;
raise Missing_Error;
end CRef;
function VRef (W : aliased in out Window; X, Y : in Natural)
return Ref_Rec is
begin
TcTouch.Touch('w'); ---------------
TcTouch.Touch(Character'Val(X - 1 + Character'Pos('A')));
TcTouch.Touch(Character'Val(Y - 1 + Character'Pos('A')));
for I in 1 .. W.Count loop
if W.Sprites(I).S.X = X and then
W.Sprites(I).S.Y = Y then
return (D => W.Sprites(I).S'Access);
end if;
end loop;
raise Missing_Error;
end VRef;
procedure Create_Sprite (W : in out Window;
N : in Name;
X : in Natural;
Y : in Natural;
K : in Kind;
C : in Color) is
begin
W.Count := W.Count + 1;
W.Sprites(W.Count) := (N => N, S => (K, C, X, Y));
end Create_Sprite;
end F416A00;
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