104 lines
2.7 KiB
C#
104 lines
2.7 KiB
C#
using Godot;
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using PhantomCamera;
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namespace Mr.BrickAdventures.scripts.components;
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public partial class ChaseLevelComponent : Node
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{
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[Export] public float ChaseSpeed { get; set; } = 200.0f;
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[Export] public Marker2D ChaseTarget { get; set; }
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[Export] public float MinimumDistance { get; set; } = 10f;
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[Signal]
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public delegate void ChaseStartedEventHandler();
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[Signal]
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public delegate void ChaseStoppedEventHandler();
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private bool _isChasing = false;
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private Node2D _previousCameraFollowTarget = null;
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private PhantomCamera2D _phantomCamera = null;
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private Node2D _root = null;
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public override void _Ready()
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{
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_phantomCamera = GetNode<Node2D>("../../%PhantomCamera").AsPhantomCamera2D();
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_root = Owner as Node2D;
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}
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public override void _PhysicsProcess(double delta)
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{
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if (!_isChasing) return;
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if (ChaseTarget == null) return;
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if (CheckIfReachedTarget())
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{
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StopChasing();
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return;
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}
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var targetPosition = ChaseTarget.GlobalPosition;
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if (_root == null) return;
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var direction = (targetPosition - _root.GlobalPosition).Normalized();
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var speed = direction * ChaseSpeed * (float)delta;
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_root.GlobalPosition += speed;
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}
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public void OnShipEntered()
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{
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if (ChaseTarget == null || _phantomCamera == null)
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return;
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if (_isChasing) return;
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_previousCameraFollowTarget = _phantomCamera.FollowTarget;
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_phantomCamera.FollowTarget = _root;
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EmitSignalChaseStarted();
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_isChasing = true;
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}
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public void OnShipExited()
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{
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StopChasing();
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}
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private bool CheckIfReachedTarget()
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{
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if (ChaseTarget == null)
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return false;
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if (Owner is not Node2D root) return false;
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var targetPosition = ChaseTarget.GlobalPosition;
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var currentPosition = root.GlobalPosition;
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return currentPosition.DistanceTo(targetPosition) <= MinimumDistance;
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}
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private void StopChasing()
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{
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if (_phantomCamera == null) return;
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_phantomCamera.FollowTarget = _previousCameraFollowTarget;
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EmitSignalChaseStopped();
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_isChasing = false;
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}
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public void SetChasing(bool shouldChase)
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{
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if (shouldChase && !_isChasing)
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{
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_previousCameraFollowTarget = _phantomCamera.FollowTarget;
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_phantomCamera.FollowTarget = _root;
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EmitSignalChaseStarted();
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_isChasing = true;
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}
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else if (!shouldChase && _isChasing)
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{
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StopChasing();
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}
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}
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} |