aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Data update

Browse source
This commit is contained in:
Ingy döt Net 2026-02-01 16:33:20 -08:00
parent 5150844a7d
commit 4bb20c9b71
7735 changed files with 38060 additions and 199180 deletions
Download patch file Download diff file Expand all files Collapse all files

86
Task/Pythagoras-tree/Ada/pythagoras-tree.ada
View file

@ -1,86 +0,0 @@
with SDL.Video.Windows.Makers;
with SDL.Video.Renderers.Makers;
with SDL.Video.Rectangles;
with SDL.Events.Events;
procedure Pythagoras_Tree is
Width : constant := 600;
Height : constant := 600;
Level : constant := 7;
type Point is record X, Y : Float; end record;
B1 : constant Point := (X => 250.0, Y => 550.0);
B2 : constant Point := (X => 350.0, Y => 550.0);
Window : SDL.Video.Windows.Window;
Renderer : SDL.Video.Renderers.Renderer;
Event : SDL.Events.Events.Events;
procedure Draw_Pythagoras_Tree (Level : in Natural;
P1, P2 : in Point)
is
use SDL.Video.Rectangles;
Dx : constant Float := P2.X - P1.X;
Dy : constant Float := P1.Y - P2.Y;
R : constant Point := (X => P2.X - Dy, Y => P2.Y - Dx);
L : constant Point := (X => P1.X - Dy, Y => P1.Y - Dx);
M : constant Point := (X => L.X + (Dx - Dy) / 2.0,
Y => L.Y - (Dx + Dy) / 2.0);
CP1 : constant SDL.Video.Rectangles.Point := (C.int (P1.X), C.int (P1.Y));
CP2 : constant SDL.Video.Rectangles.Point := (C.int (P2.X), C.int (P2.Y));
CL : constant SDL.Video.Rectangles.Point := (C.int (L.X), C.int (L.Y));
CR : constant SDL.Video.Rectangles.Point := (C.int (R.X), C.int (R.Y));
CM : constant SDL.Video.Rectangles.Point := (C.int (M.X), C.int (M.Y));
Square : constant SDL.Video.Rectangles.Line_Arrays :=
((CP1, CP2), (CP2, CR), (CR, CL), (CL, CP1));
Triang : constant SDL.Video.Rectangles.Line_Arrays :=
((CR, CL), (CL, CM), (CM, CR));
begin
if Level > 0 then
Renderer.Set_Draw_Colour (Colour => (0, 220, 0, 255));
Renderer.Draw (Lines => Square);
Renderer.Draw (Lines => Triang);
Draw_Pythagoras_Tree (Level - 1, L, M);
Draw_Pythagoras_Tree (Level - 1, M, R);
end if;
end Draw_Pythagoras_Tree;
procedure Wait is
use type SDL.Events.Event_Types;
begin
loop
while SDL.Events.Events.Poll (Event) loop
if Event.Common.Event_Type = SDL.Events.Quit then
return;
end if;
end loop;
delay 0.100;
end loop;
end Wait;
begin
if not SDL.Initialise (Flags => SDL.Enable_Screen) then
return;
end if;
SDL.Video.Windows.Makers.Create (Win => Window,
Title => "Pythagoras tree",
Position => SDL.Natural_Coordinates'(X => 10, Y => 10),
Size => SDL.Positive_Sizes'(Width, Height),
Flags => 0);
SDL.Video.Renderers.Makers.Create (Renderer, Window.Get_Surface);
Renderer.Set_Draw_Colour ((0, 0, 0, 255));
Renderer.Fill (Rectangle => (0, 0, Width, Height));
Renderer.Set_Draw_Colour ((0, 220, 0, 255));
Draw_Pythagoras_Tree (Level, B1, B2);
Window.Update_Surface;
Wait;
Window.Finalize;
SDL.Finalise;
end Pythagoras_Tree;