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gel: Only send motion updates for sprites if they have moved.

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This commit is contained in:
Rod Kay
2023-12-13 17:48:42 +11:00
parent 80dab00932
commit bcd283c6d6
13 changed files with 186 additions and 77 deletions
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1
3-mid/physics/interface/source/physics-object.ads
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@@ -3,6 +3,7 @@ with
physics.Model,
lace.Any;
package physics.Object
--
-- Provide an interface for physics objects.

30
4-high/gel/applet/demo/game/pong-sdl/launch_pong.adb
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@@ -50,7 +50,7 @@ is
--
the_Ball : constant gel.Sprite.view
:= gel.Forge.new_circle_Sprite (in_World => the_Applet.World,
Site => [0.0, 0.0],
Site => [0.0, 0.0, 0.0],
Mass => 1.0,
Bounce => 1.0,
Friction => 0.0,
@@ -77,10 +77,12 @@ is
procedure add_Player (Id : in player_Id;
Site : in Vector_2)
Site : in Vector_3)
is
the_Player : Player renames the_Players (Id);
score_Site : constant Vector_2 := Site + [0.0, stadium_Height / 2.0 + 0.8];
score_Site : constant Vector_3 := Site + [0.0,
stadium_Height / 2.0 + 0.8,
0.0];
begin
the_Player.Paddle := gel.Forge.new_rectangle_Sprite (the_Applet.World,
Site => Site,
@@ -101,13 +103,13 @@ is
the_Applet.World.add (the_Player.Paddle);
the_Applet.World.add (the_Player.score_Text);
the_Player.score_Text.Site_is (Vector_3 (score_Site & 0.0));
the_Player.score_Text.Site_is (score_Site);
end add_Player;
--- Walls
--
procedure add_Wall (Site : in Vector_2;
procedure add_Wall (Site : in Vector_3;
Width,
Height : in Real)
is
@@ -204,8 +206,8 @@ begin
declare
paddle_X_Offset : constant := stadium_Width / 2.0 - 2.0;
begin
add_Player (1, Site => [-paddle_X_Offset, 0.0]);
add_Player (2, Site => [ paddle_X_Offset, 0.0]);
add_Player (1, Site => [-paddle_X_Offset, 0.0, 0.0]);
add_Player (2, Site => [ paddle_X_Offset, 0.0, 0.0]);
end;
--- Build the stadium.
@@ -219,14 +221,14 @@ begin
side_wall_X_Offset : constant := stadium_Width / 2.0;
side_wall_Y_Offset : constant := (side_wall_Height + goal_Size) / 2.0;
begin
add_Wall (Site => [0.0, top_wall_Y_Offset], Width => stadium_Width, Height => Thickness); -- Top
add_Wall (Site => [0.0, -top_wall_Y_Offset], Width => stadium_Width, Height => Thickness); -- Bottom
add_Wall (Site => [0.0, top_wall_Y_Offset, 0.0], Width => stadium_Width, Height => Thickness); -- Top
add_Wall (Site => [0.0, -top_wall_Y_Offset, 0.0], Width => stadium_Width, Height => Thickness); -- Bottom
add_Wall (Site => [-side_wall_X_Offset, side_wall_Y_Offset], Width => Thickness, Height => side_wall_Height); -- upper Left
add_Wall (Site => [-side_wall_X_Offset, -side_wall_Y_Offset], Width => Thickness, Height => side_wall_Height); -- lower Left
add_Wall (Site => [-side_wall_X_Offset, side_wall_Y_Offset, 0.0], Width => Thickness, Height => side_wall_Height); -- upper Left
add_Wall (Site => [-side_wall_X_Offset, -side_wall_Y_Offset, 0.0], Width => Thickness, Height => side_wall_Height); -- lower Left
add_Wall (Site => [ side_wall_X_Offset, side_wall_Y_Offset], Width => Thickness, Height => side_wall_Height); -- upper Right
add_Wall (Site => [ side_wall_X_Offset, -side_wall_Y_Offset], Width => Thickness, Height => side_wall_Height); -- lower Right
add_Wall (Site => [ side_wall_X_Offset, side_wall_Y_Offset, 0.0], Width => Thickness, Height => side_wall_Height); -- upper Right
add_Wall (Site => [ side_wall_X_Offset, -side_wall_Y_Offset, 0.0], Width => Thickness, Height => side_wall_Height); -- lower Right
end;
-- Connect events.
@@ -248,7 +250,7 @@ begin
loop
Cycle := Cycle + 1;
the_Applet.World.evolve; -- Advance the world.
-- the_Applet.World.evolve; -- Advance the world.
the_Applet.freshen; -- Handle any new events and update the screen.
--- Check goal scoring.

2
4-high/gel/source/applet/gel-applet.adb
View File

@@ -426,7 +426,7 @@ is
declare
the_world_Info : world_Info renames Element (world_Cursor).all;
begin
the_world_Info.World.evolve;
null; -- the_world_Info.World.evolve;
end;
next (world_Cursor);

27
4-high/gel/source/gel-sprite.adb
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@@ -1098,6 +1098,33 @@ is
-----------------
-- Motion Updates
--
function has_Moved (Self : in out Item; current_Site : Vector_3;
current_Spin : Matrix_3x3) return Boolean
is
Result : Boolean := False;
begin
if current_Site /= Self.prior_Site
then
Self.prior_Site := current_Site;
Result := True;
end if;
if current_Spin /= Self.prior_Spin
then
Self.prior_Spin := current_Spin;
Result := True;
end if;
return Result;
end has_Moved;
------------
--- Graphics
--

15
4-high/gel/source/gel-sprite.ads
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@@ -328,6 +328,16 @@ is
-- Motion Updates
--
function has_Moved (Self : in out Item; current_Site : Vector_3;
current_Spin : Matrix_3x3) return Boolean;
private
type access_Joint_views is access all Joint.views;
@@ -422,6 +432,11 @@ private
user_Data : any_user_Data_view;
is_Destroyed : Boolean := False;
-- Motion Updates
--
prior_Site : Vector_3 := Origin_3D;
prior_Spin : Matrix_3x3 := Identity_3x3;
end record;

1
4-high/gel/source/platform/gtk/gel-window-gtk.adb
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@@ -219,6 +219,7 @@ is
begin
Self.gl_Area := gtk_glArea_new;
Self.gl_Area.set_use_ES (True);
Self.gl_Area.Set_Can_Focus (True);
Callbacks_with_gel_Window_user_Data.connect (Self.gl_Area,
"realize",

10
4-high/gel/source/remote/gel-remote-world.ads
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@@ -160,7 +160,7 @@ is
type motion_Updates is array (Positive range <>) of motion_Update
with Pack;
with Pack;
procedure motion_Updates_write (Stream : access ada.Streams.Root_Stream_type'Class; Item : in motion_Updates);
procedure motion_Updates_read (Stream : access ada.Streams.Root_Stream_type'Class; Item : out motion_Updates);
@@ -168,7 +168,13 @@ is
for motion_Updates'write use motion_Updates_write;
for motion_Updates'read use motion_Updates_read;
procedure motion_Updates_are (Self : in Item; Now : in motion_Updates) is abstract;
type sequence_Id is range 0 .. 2**32 - 1;
procedure motion_Updates_are (Self : in Item; seq_Id : in sequence_Id;
Now : in motion_Updates) is abstract;
--------------

109
4-high/gel/source/world/gel-world-client.adb
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@@ -531,61 +531,70 @@ is
overriding
procedure motion_Updates_are (Self : in Item; Now : in remote.World.motion_Updates)
procedure motion_Updates_are (Self : in Item; seq_Id : in remote.World.sequence_Id;
Now : in remote.World.motion_Updates)
is
use type remote.World.sequence_Id;
all_Sprites : constant id_Maps_of_sprite.Map := Self.all_Sprites.Map.fetch_all;
the_Id : gel.sprite_Id;
begin
for i in Now'Range
loop
begin
the_Id := Now (i).Id;
declare
use remote.World;
the_Sprite : constant Sprite.view := all_Sprites.Element (the_Id);
new_Site : constant Vector_3 := refined (Now (i).Site);
-- site_Delta : Vector_3;
-- min_teleport_Delta : constant := 20.0;
new_Spin : constant Quaternion := refined (Now (i).Spin);
-- new_Spin : constant Matrix_3x3 := Now (i).Spin;
if seq_Id > Self.seq_Id.Value
then
Self.seq_Id.Value_is (seq_Id);
for i in Now'Range
loop
begin
-- site_Delta := new_Site - the_Sprite.desired_Site;
--
-- if abs site_Delta (1) > min_teleport_Delta
-- or else abs site_Delta (2) > min_teleport_Delta
-- or else abs site_Delta (3) > min_teleport_Delta
-- then
-- log ("Teleport.");
-- the_Sprite.Site_is (new_Site); -- Sprite has been 'teleported', so move it now
-- end if; -- to prevent later interpolation.
the_Id := Now (i).Id;
declare
use remote.World;
the_Sprite : constant Sprite.view := all_Sprites.Element (the_Id);
new_Site : constant Vector_3 := refined (Now (i).Site);
-- site_Delta : Vector_3;
-- min_teleport_Delta : constant := 20.0;
new_Spin : constant Quaternion := refined (Now (i).Spin);
-- new_Spin : constant Matrix_3x3 := Now (i).Spin;
begin
-- site_Delta := new_Site - the_Sprite.desired_Site;
--
-- if abs site_Delta (1) > min_teleport_Delta
-- or else abs site_Delta (2) > min_teleport_Delta
-- or else abs site_Delta (3) > min_teleport_Delta
-- then
-- log ("Teleport.");
-- the_Sprite.Site_is (new_Site); -- Sprite has been 'teleported', so move it now
-- end if; -- to prevent later interpolation.
-- the_Sprite.Site_is (new_Site);
-- the_Sprite.Spin_is (to_Rotation (Axis => new_Spin.V,
-- Angle => new_Spin.R));
-- the_Sprite.Site_is (new_Site);
-- the_Sprite.Spin_is (to_Rotation (Axis => new_Spin.V,
-- Angle => new_Spin.R));
-- the_Sprite.Spin_is (to_Matrix (to_Quaternion (new_Spin)));
-- the_Sprite.Spin_is (to_Matrix (to_Quaternion (new_Spin)));
-- the_Sprite.desired_Dynamics_are (Site => new_Site,
-- Spin => to_Quaternion (new_Spin));
-- the_Sprite.desired_Dynamics_are (Site => new_Site,
-- Spin => to_Quaternion (new_Spin));
the_Sprite.desired_Dynamics_are (Site => new_Site,
Spin => new_Spin);
the_Sprite.desired_Dynamics_are (Site => new_Site,
Spin => new_Spin);
-- the_Sprite.desired_Site_is (new_Site);
-- the_Sprite.desired_Spin_is (new_Spin);
-- the_Sprite.desired_Site_is (new_Site);
-- the_Sprite.desired_Spin_is (new_Spin);
end;
exception
when constraint_Error =>
log ("Warning: Received motion updates for unknown sprite" & the_Id'Image & ".");
end;
end loop;
exception
when constraint_Error =>
log ("Warning: Received motion updates for unknown sprite" & the_Id'Image & ".");
end;
end loop;
end if;
end motion_Updates_are;
@@ -662,6 +671,26 @@ is
-- Containers
--
protected
body safe_sequence_Id
is
procedure Value_is (Now : in remote.World.sequence_Id)
is
begin
the_Value := Now;
end Value_is;
function Value return remote.World.sequence_Id
is
begin
return the_Value;
end Value;
end safe_sequence_Id;
protected
body safe_id_Map_of_sprite
is

21
4-high/gel/source/world/gel-world-client.ads
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@@ -60,7 +60,8 @@ is
procedure is_a_Mirror (Self : access Item'Class; of_World : in remote.World.view);
overriding
procedure motion_Updates_are (Self : in Item; Now : in remote.World.motion_Updates);
procedure motion_Updates_are (Self : in Item; seq_Id : in remote.World.sequence_Id;
Now : in remote.World.motion_Updates);
--
-- 'Self' must use 'in' as mode to ensure async transmission with DSA.
@@ -98,6 +99,20 @@ private
procedure rid (To : in out sprite_Map; the_Sprite : in Sprite.view);
protected
type safe_sequence_Id
is
procedure Value_is (Now : in remote.World.sequence_Id);
function Value return remote.World.sequence_Id;
private
the_Value : remote.World.sequence_Id := 0;
end safe_sequence_Id;
type safe_sequence_Id_view is access all safe_sequence_Id;
--------------
--- World Item
--
@@ -106,6 +121,10 @@ private
record
Age_at_last_mirror_update : Duration := 0.0;
all_Sprites : aliased sprite_Map;
-- Motion Updates
--
seq_Id : safe_sequence_Id_view := new safe_sequence_Id;
end record;

30
4-high/gel/source/world/gel-world-server.adb
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@@ -174,7 +174,7 @@ is
the_Sprite : gel.Sprite.view;
is_a_mirrored_World : constant Boolean := not Self.Clients.Is_Empty;
is_a_mirrored_World : constant Boolean := not Self.Clients.is_Empty;
mirror_Updates_are_due : constant Boolean := Self.Age >= Self.Age_at_last_Clients_update + client_update_Period;
updates_Count : Natural := 0;
@@ -187,17 +187,20 @@ is
while has_Element (Cursor)
loop
the_Sprite := Sprite.view (Element (Cursor));
-- the_Sprite.apply_Force ([0.0, 1.0, 0.0]);
-- the_Sprite.apply_Torque_impulse ([0.0, 1.0, 0.0]);
updates_Count := updates_Count + 1;
the_motion_Updates (updates_Count) := (Id => the_Sprite.Id,
Site => coarsen (the_Sprite.Site),
Spin => coarsen (to_Quaternion (the_Sprite.Spin)));
-- Spin => the_Sprite.Spin);
-- log (Image (Quaternion' (refined (the_motion_Updates (updates_Count).Spin))));
-- ada.Text_IO.put (refined (the_motion_Updates (updates_Count).Site)'Image);
declare
the_Site : constant Vector_3 := the_Sprite.Site;
the_Spin : constant Matrix_3x3 := the_Sprite.Spin;
begin
if the_Sprite.has_Moved (current_Site => the_Site,
current_Spin => the_Spin)
then
updates_Count := updates_Count + 1;
the_motion_Updates (updates_Count) := (Id => the_Sprite.Id,
Site => coarsen (the_Site),
Spin => coarsen (to_Quaternion (the_Spin)));
end if;
end;
next (Cursor);
end loop;
@@ -205,6 +208,7 @@ is
-- Send updated sprite motions to all registered client worlds.
--
Self.Age_at_last_clients_update := Self.Age;
Self.seq_Id := Self.seq_Id + 1;
if updates_Count > 0
then
@@ -217,8 +221,8 @@ is
while has_Element (Cursor)
loop
the_Mirror := Element (Cursor);
the_Mirror.motion_Updates_are (the_motion_Updates (1 .. updates_Count));
the_Mirror.motion_Updates_are (Self.seq_Id,
the_motion_Updates (1 .. updates_Count));
next (Cursor);
end loop;
end;

5
4-high/gel/source/world/gel-world-server.ads
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@@ -1,6 +1,5 @@
with
lace.Observer,
ada.unchecked_Conversion,
ada.Containers.Vectors;
limited
@@ -96,6 +95,10 @@ private
Clients : World_vector;
all_Sprites : aliased sprite_Map;
-- Motion Updates
--
seq_Id : remote.World.sequence_Id := 0;
end record;

3
4-high/gel/source/world/gel-world.adb
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@@ -862,7 +862,8 @@ is
procedure deregister (Self : access Item; the_Mirror : in remote.World.view) is null;
overriding
procedure motion_Updates_are (Self : in Item; Now : in remote.World.motion_Updates) is null;
procedure motion_Updates_are (Self : in Item; seq_Id : in remote.World.sequence_Id;
Now : in remote.World.motion_Updates) is null;
----------

9
4-high/gel/source/world/gel-world.ads
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@@ -241,7 +241,8 @@ is
procedure deregister (Self : access Item; the_Mirror : in remote.World.view);
overriding
procedure motion_Updates_are (Self : in Item; Now : in remote.World.motion_Updates);
procedure motion_Updates_are (Self : in Item; seq_Id : in remote.World.sequence_Id;
Now : in remote.World.motion_Updates);
--
-- 'Self' must use 'in' as mode to ensure async transmission with DSA.
@@ -293,7 +294,7 @@ private
type Hertz is new Real;
evolve_Hz : constant Hertz := 60.0;
client_update_Hz : constant Hertz := 4.0;
client_update_Hz : constant Hertz := 20.0; -- Too small will make player movement response time sluggish. Too large consumes much bandwidth.
evolve_Period : constant Duration := 1.0 / Duration (evolve_Hz);
client_update_Period : constant Duration := 1.0 / Duration (client_update_Hz);
@@ -404,8 +405,8 @@ private
-- Models
--
graphics_Models : aliased id_Maps_of_graphics_model .Map;
physics_Models : aliased id_Maps_of_physics_model.Map;
graphics_Models : aliased id_Maps_of_graphics_model.Map;
physics_Models : aliased id_Maps_of_physics_model .Map;
-- Ids
--