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238 | with Ada.Exceptions;
with GNAT.OS_Lib;
with Ada.Text_IO; use Ada.Text_IO;
with Sf.Window.VideoMode; use Sf.Window.VideoMode;
with Sf.Graphics; use Sf.Graphics;
with Sf.Graphics.Sprite; use Sf.Graphics.Sprite;
with Sf.Graphics.Texture; use Sf.Graphics.Texture;
with Sf.Graphics.RenderTexture; use Sf.Graphics.RenderTexture;
with Sf.Graphics.View; use Sf.Graphics.View;
with Sf.Graphics.RenderWindow; use Sf.Graphics.RenderWindow;
with Sf.Window.Window; use Sf.Window.Window;
with Sf.Window.Event; use Sf.Window.Event;
with Sf.Window.Keyboard; use Sf.Window.Keyboard;
with Sf; use Sf;
with Ada.Real_Time; use Ada.Real_Time;
with Sf.System.Vector2; use Sf.System.Vector2;
with Ada.Unchecked_Conversion;
with simulator_assets;
package body PyGamer is
function Hack_SF_Binding is new Ada.Unchecked_Conversion (sfSprite_Ptr,
sfView_Ptr);
--------------
-- Set_View --
--------------
procedure Set_View (View : Sf.Graphics.sfView_Ptr;
Width, Height : sfUint32)
is
Win_Ratio : constant Float := Float (Width) / Float (Height);
View_Ratio : constant Float := Float (getSize (View).x) / Float (getSize (View).y);
Size_X : Float := 1.0;
Size_Y : Float := 1.0;
Pos_X : Float := 0.0;
Pos_Y : Float := 0.0;
Horizontal_Spacing : Boolean := True;
begin
if Win_Ratio < View_Ratio then
Size_Y := Win_Ratio / View_Ratio;
Pos_Y := (1.0 - Size_Y) / 2.0;
else
Size_X := View_Ratio / Win_Ratio;
Pos_X := (1.0 - Size_X) / 2.0;
end if;
setViewport (View, (Pos_X, Pos_Y, Size_X, Size_Y));
end Set_View;
task Periodic_Update is
end Periodic_Update;
---------------------
-- Periodic_Update --
---------------------
task body Periodic_Update is
BG_Width : constant := 730;
BG_Height : constant := 411;
Mode : constant Sf.Window.VideoMode.sfVideoMode :=
(BG_Width, BG_Height, 32);
Params : sfContextSettings := sfDefaultContextSettings;
Window : Sf.Graphics.sfRenderWindow_Ptr;
Framebuffer_Texture : Sf.Graphics.sfTexture_Ptr;
Render_Texture : Sf.Graphics.sfRenderTexture_Ptr;
PG_Texture : Sf.Graphics.sfTexture_Ptr;
PG_Sprite : Sf.Graphics.sfSprite_Ptr;
Screen_Sprite : Sf.Graphics.sfSprite_Ptr;
Sprite_Left : Sf.Graphics.sfSprite_Ptr;
Sprite_Right : Sf.Graphics.sfSprite_Ptr;
Letter_Box_View : Sf.Graphics.sfView_Ptr;
Event : sfEvent;
Period : constant Time_Span := Milliseconds (1000 / 60);
Next_Release : Time := Clock + Period;
Pressed : Boolean;
Screen_Scale : constant := 287.0 / Float (Screen_Width);
Screen_Offset : constant sfVector2f := (231.0, 66.0);
begin
Framebuffer_Texture := Create (Screen_Width, Screen_Height);
if Framebuffer_Texture = null then
Put_Line ("Failed to create screen texture");
GNAT.OS_Lib.OS_Exit (1);
end if;
declare
Ptr : constant simulator_assets.Content_Access :=
simulator_assets.Get_Content ("pygamer.png").Content;
begin
PG_Texture := createFromMemory (Ptr.all'Address, Ptr.all'Length);
end;
if PG_Texture = null then
Put_Line ("Failed to create PyGamer texture");
GNAT.OS_Lib.OS_Exit (1);
end if;
Render_Texture := create (Screen_Width, Screen_Height, False);
if Render_Texture = null then
Put_Line ("Could not create render texture");
GNAT.OS_Lib.OS_Exit (1);
end if;
Screen_Sprite := Create;
if Screen_Sprite = null then
Put_Line ("Could not create screen sprite");
GNAT.OS_Lib.OS_Exit (1);
end if;
SetTexture (Screen_Sprite, getTexture (Render_Texture));
scale (Screen_Sprite, (Screen_Scale, Screen_Scale));
setPosition (Screen_Sprite, Screen_Offset);
Sprite_Left := Create;
if Sprite_Left = null then
Put_Line ("Could not create sprite");
GNAT.OS_Lib.OS_Exit (1);
end if;
SetTexture (Sprite_Left, Framebuffer_Texture);
Sprite_Right := Create;
if Sprite_Right = null then
Put_Line ("Could not create sprite");
GNAT.OS_Lib.OS_Exit (1);
end if;
SetTexture (Sprite_Right, Framebuffer_Texture);
PG_Sprite := Create;
if PG_Sprite = null then
Put_Line ("Could not create sprite");
GNAT.OS_Lib.OS_Exit (1);
end if;
SetTexture (PG_Sprite, PG_Texture);
Window := Create (Mode, "PyGamer simulator", sfResize or sfClose, Params);
if Window = null then
Put_Line ("Failed to create window");
GNAT.OS_Lib.OS_Exit (1);
end if;
SetVerticalSyncEnabled (Window, sfFalse);
SetVisible (Window, sfTrue);
Letter_Box_View := create;
if Letter_Box_View = null then
Put_Line ("Failed to create view");
GNAT.OS_Lib.OS_Exit (1);
end if;
setSize (Letter_Box_View, (Float (BG_Width), Float (BG_Height)));
setCenter (Letter_Box_View,
(Float (BG_Width) / 2.0, Float (BG_Height) / 2.0));
Set_View (Letter_Box_View, getSize (Window).x, getSize (Window).y);
loop
delay until Next_Release;
Next_Release := Next_Release + Period;
while pollEvent (Window, Event) loop
if Event.eventType = sfEvtClosed then
Close (Window);
Put_Line ("Attempting to close");
GNAT.OS_Lib.OS_Exit (0);
end if;
if Event.eventType = sfEvtResized then
Set_View (Letter_Box_View, Event.size.width, Event.size.height);
end if;
if Event.eventType in sfEvtKeyPressed | sfEvtKeyReleased then
Pressed := Event.eventType = sfEvtKeyPressed;
case Event.key.code is
when sfKeyLeft =>
SFML_Pressed (Left) := Pressed;
when sfKeyRight =>
SFML_Pressed (Right) := Pressed;
when sfKeyDown =>
SFML_Pressed (Down) := Pressed;
when sfKeyUp =>
SFML_Pressed (Up) := Pressed;
when sfKeyZ =>
SFML_Pressed (B) := Pressed;
when sfKeyX =>
SFML_Pressed (A) := Pressed;
when sfKeyReturn =>
SFML_Pressed (Start) := Pressed;
when sfKeyC =>
SFML_Pressed (Sel) := Pressed;
when sfKeyEscape =>
Close (Window);
Put_Line ("Attempting to close");
GNAT.OS_Lib.OS_Exit (0);
when others =>
null;
end case;
end if;
end loop;
updateFromPixels (texture => Framebuffer_Texture,
pixels => Frame_Buffer (Frame_Buffer'First)'access,
width => Screen_Width,
height => Screen_Height,
x => 0,
y => 0);
setPosition (Sprite_Right,
(Float (Scroll_Val) - Float (Screen_Width), 0.0));
setPosition (Sprite_Left,
(Float (Scroll_Val), 0.0));
drawSprite (Render_Texture, Hack_SF_Binding (Sprite_Right));
drawSprite (Render_Texture, Hack_SF_Binding (Sprite_Left));
display (Render_Texture);
clear (Window);
drawSprite (Window, PG_Sprite);
drawSprite (Window, Screen_Sprite);
setView (Window, Letter_Box_View);
display (Window);
end loop;
exception
when E : others =>
Put_Line (Ada.Exceptions.Exception_Message (E));
GNAT.OS_Lib.OS_Exit (1);
end Periodic_Update;
end PyGamer;
|