80 lines
2.7 KiB
C#
80 lines
2.7 KiB
C#
using Godot;
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namespace PolarBears.PlayerControllerAddon;
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public record DashComputation(bool HasHit, Vector3 Location, Vector3 CollisionPoint, Vector3 CollisionNormal);
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public record DashResolve(bool EndWithMantle, Vector3 DashLocation, Vector3 MantleLocation);
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public partial class DashSystem: Node3D
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{
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[Export(PropertyHint.Range, "0,0.2,0.01,or_greater")]
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public float DashSpeed { get; set; } = 0.05f;
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private Node3D _head;
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private ShapeCast3D _dashCast3D;
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private Camera3D _camera;
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private MeshInstance3D _dashTarget;
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private MantleSystem _mantleSystem;
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public void Init(Node3D head, Camera3D camera)
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{
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_dashCast3D = GetNode<ShapeCast3D>("DashCast3D");
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_head = head;
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_camera = camera;
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_mantleSystem = GetNode<MantleSystem>("MantleSystem");
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_mantleSystem.Init(this);
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_dashTarget = GetNode<MeshInstance3D>("DashTarget");
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_dashTarget.SetVisible(false);
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}
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private DashComputation ComputeDashLocation()
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{
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if (!_dashCast3D.IsColliding())
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{
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return new DashComputation(false, _dashCast3D.ToGlobal(_dashCast3D.TargetPosition), Vector3.Zero, Vector3.Zero);
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}
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var collisionPoint = _dashCast3D.GetCollisionPoint(0);
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var collisionNormal = _dashCast3D.GetCollisionNormal(0);
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var collisionShape = (SphereShape3D) _dashCast3D.GetShape();
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var centerSphereLocation = collisionPoint + collisionNormal * collisionShape.Radius;
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return new DashComputation(true, centerSphereLocation, collisionPoint, collisionNormal);
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}
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public DashResolve PrepareDash()
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{
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_dashTarget.SetVisible(false);
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_dashCast3D.SetRotation(new Vector3(
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_camera.Rotation.X,
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_head.Rotation.Y,
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_camera.Rotation.Z));
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var (hasHit, location, collisionPoint, collisionNormal) = ComputeDashLocation();
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var shouldMantle = false;
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var mantleLocation = Vector3.Zero;
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if (hasHit && Mathf.Abs(collisionNormal.Y) < 0.01f)
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{
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var mantleResult = _mantleSystem.FindMantleLocationAtPoint(collisionPoint, collisionNormal);
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shouldMantle = mantleResult.IsSome(out mantleLocation);
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}
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var targetColor = shouldMantle ? new Color(0.2f, 0.2f, 1f) : new Color(1f, 1f, 1f);
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var targetMaterial = (StandardMaterial3D) _dashTarget.GetSurfaceOverrideMaterial(0);
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targetMaterial.SetAlbedo(targetColor);
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_dashTarget.SetVisible(true);
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_dashTarget.SetGlobalPosition(location);
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return new DashResolve(shouldMantle, location, mantleLocation);
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}
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public void Dash()
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{
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_dashTarget.SetVisible(false);
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}
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}
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