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Add pyramid physics testbed (#3710)

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* Add pyramid physics testbed

From Box2D (licence is already on the file). Useful for testing solver performance for large islands.

* nulls

Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>
This commit is contained in:
metalgearsloth
2021-03-28 13:41:49 +11:00
committed by GitHub
parent b65157ea0f
commit bc6a93fa02
2 changed files with 62 additions and 11 deletions
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10
Content.IntegrationTests/Tests/Physics/PhysicsTestBedTest.cs
View File

@@ -64,8 +64,7 @@ namespace Content.IntegrationTests.Tests.Physics
var entityManager = IoCManager.Resolve<IEntityManager>();
// TODO: Need a blank entity we can spawn for testbed.
var ground = entityManager.SpawnEntity("BlankEntity", new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var ground = entityManager.SpawnEntity(null, new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var horizontal = new EdgeShape(new Vector2(-20, 0), new Vector2(20, 0));
var horizontalFixture = new Fixture(ground, horizontal)
@@ -98,7 +97,7 @@ namespace Content.IntegrationTests.Tests.Physics
{
var x = 0.0f;
var box = entityManager.SpawnEntity("BlankEntity",
var box = entityManager.SpawnEntity(null,
new MapCoordinates(new Vector2(xs[j] + x, 0.55f + 2.1f * i), mapId)).AddComponent<PhysicsComponent>();
box.BodyType = BodyType.Dynamic;
@@ -181,8 +180,7 @@ namespace Content.IntegrationTests.Tests.Physics
var entityManager = IoCManager.Resolve<IEntityManager>();
// TODO: Need a blank entity we can spawn for testbed.
var ground = entityManager.SpawnEntity("BlankEntity", new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var ground = entityManager.SpawnEntity(null, new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var horizontal = new EdgeShape(new Vector2(-20, 0), new Vector2(20, 0));
var horizontalFixture = new Fixture(ground, horizontal)
@@ -215,7 +213,7 @@ namespace Content.IntegrationTests.Tests.Physics
{
var x = 0.0f;
var circle = entityManager.SpawnEntity("BlankEntity",
var circle = entityManager.SpawnEntity(null,
new MapCoordinates(new Vector2(xs[j] + x, 0.55f + 2.1f * i), mapId)).AddComponent<PhysicsComponent>();
circle.BodyType = BodyType.Dynamic;

63
Content.Server/Commands/Physics/TestbedCommand.cs
View File

@@ -94,6 +94,10 @@ namespace Content.Server.Commands.Physics
SetupPlayer(mapId, shell, player, mapManager);
CreateCircleStack(mapId);
break;
case "pyramid":
SetupPlayer(mapId, shell, player, mapManager);
CreatePyramid(mapId);
break;
default:
shell.WriteLine($"testbed {args[0]} not found!");
return;
@@ -115,7 +119,7 @@ namespace Content.Server.Commands.Physics
{
var entityManager = IoCManager.Resolve<IEntityManager>();
var ground = entityManager.SpawnEntity("BlankEntity", new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var ground = entityManager.SpawnEntity(null, new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var horizontal = new EdgeShape(new Vector2(-20, 0), new Vector2(20, 0));
var horizontalFixture = new Fixture(ground, horizontal)
@@ -150,7 +154,7 @@ namespace Content.Server.Commands.Physics
{
var x = 0.0f;
var box = entityManager.SpawnEntity("BlankEntity",
var box = entityManager.SpawnEntity(null,
new MapCoordinates(new Vector2(xs[j] + x, 0.55f + 2.1f * i), mapId)).AddComponent<PhysicsComponent>();
box.BodyType = BodyType.Dynamic;
@@ -175,8 +179,7 @@ namespace Content.Server.Commands.Physics
{
var entityManager = IoCManager.Resolve<IEntityManager>();
// TODO: Need a blank entity we can spawn for testbed.
var ground = entityManager.SpawnEntity("BlankEntity", new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var ground = entityManager.SpawnEntity(null, new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var horizontal = new EdgeShape(new Vector2(-20, 0), new Vector2(20, 0));
var horizontalFixture = new Fixture(ground, horizontal)
@@ -211,7 +214,7 @@ namespace Content.Server.Commands.Physics
{
var x = 0.0f;
var box = entityManager.SpawnEntity("BlankEntity",
var box = entityManager.SpawnEntity(null,
new MapCoordinates(new Vector2(xs[j] + x, 0.55f + 2.1f * i), mapId)).AddComponent<PhysicsComponent>();
box.BodyType = BodyType.Dynamic;
@@ -230,5 +233,55 @@ namespace Content.Server.Commands.Physics
}
}
}
private void CreatePyramid(MapId mapId)
{
const byte count = 20;
// Setup ground
var entityManager = IoCManager.Resolve<IEntityManager>();
var ground = entityManager.SpawnEntity(null, new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
var horizontal = new EdgeShape(new Vector2(-40, 0), new Vector2(40, 0));
var horizontalFixture = new Fixture(ground, horizontal)
{
CollisionLayer = (int) CollisionGroup.Impassable,
CollisionMask = (int) CollisionGroup.Impassable,
Hard = true
};
ground.AddFixture(horizontalFixture);
// Setup boxes
float a = 0.5f;
PolygonShape shape = new();
shape.SetAsBox(a, a);
var x = new Vector2(-7.0f, 0.75f);
Vector2 y;
Vector2 deltaX = new Vector2(0.5625f, 1.25f);
Vector2 deltaY = new Vector2(1.125f, 0.0f);
for (var i = 0; i < count; ++i)
{
y = x;
for (var j = i; j < count; ++j)
{
var box = entityManager.SpawnEntity(null, new MapCoordinates(0, 0, mapId)).AddComponent<PhysicsComponent>();
box.BodyType = BodyType.Dynamic;
box.Owner.Transform.WorldPosition = y;
box.AddFixture(
new Fixture(box, shape) {
CollisionLayer = (int) CollisionGroup.Impassable,
CollisionMask = (int) CollisionGroup.Impassable,
Hard = true});
box.Mass = 5.0f;
y += deltaY;
}
x += deltaX;
}
}
}
}