Populate minigame with obstacles and monster spawns (#5)

- Simulated "fake" physics and collisions
- Object pooling for tiles, obstacles and monster spawns
- Base monster scoring with proximity triggers and depth multiplier

Co-authored-by: AlexanderT <alexander@foolhardyhorizons.com>
Co-authored-by: Michal Pikulski <michal.a.pikulski@gmail.com>
Reviewed-on: #5

Assets/Art/Sprites/Spritesheets/Quarry/Placeholders/LawnMowerMovingPLACEHOLDER.png.meta

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Assets/External/Pixelplacement/Surge/Tween/Tween.cs

@@ -77,7 +77,7 @@ namespace Pixelplacement
         /// <summary>
         /// Moves a Transform along a spline path from a start percentage to an end percentage.
         /// </summary>
-        public static TweenSystem.TweenBase Spline(Spline spline, Transform target, float startPercentage, float endPercentage, bool faceDirection, float duration, float delay, AnimationCurve easeCurve = null, LoopType loop = LoopType.None, Action startCallback = null, Action completeCallback = null, bool obeyTimescale = true)
+        public static TweenSystem.TweenBase Spline(Spline spline, Transform target, float startPercentage, float endPercentage, bool faceDirection, float duration, float delay, AnimationCurve easeCurve = null, LoopType loop = LoopType.None, Action startCallback = null, Action completeCallback = null, bool obeyTimescale = true, Action onComplete = null, Action onUpdate = null)
         {
             TweenSystem.SplinePercentage tween = new TweenSystem.SplinePercentage(spline, target, startPercentage, endPercentage, faceDirection, duration, delay, obeyTimescale, easeCurve, loop, startCallback, completeCallback);
             SendTweenForProcessing(tween, true);

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Assets/Scripts/DamianExperiments/LawnMowerBehaviour.cs

@@ -0,0 +1,29 @@
+using UnityEngine;
+using Pixelplacement;
+
+public class LawnMowerBehaviour : MonoBehaviour
+{
+    private StateMachine stateMachineRef;
+
+    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    void Start()
+    {
+        stateMachineRef = GetComponent<StateMachine>();
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+    public void mowerTouched()
+    {
+        Debug.Log("Mower Touched");
+    }
+
+    public void stateSwitch(string StateName)
+    {
+        Debug.Log("State Switch to: " + StateName);
+        stateMachineRef.ChangeState(StateName);
+    }
+}

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Assets/Scripts/DamianExperiments/LawnMowerChaseBehaviour.cs

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+using UnityEngine;
+using Pixelplacement;
+
+public class LawnMowerChaseBehaviour : MonoBehaviour
+{
+    public Spline ChaseSpline;
+    public Transform LawnMowerObject;
+    public float chaseDuration;
+    public float chaseDelay;
+
+    private Vector3 _originalScale;
+    private bool _facingRight = true;
+    private bool _movingForward = true;
+    private float _lastPercentage = 0f;
+    private const float AnchorThreshold = 0.1f; // Tolerance for anchor detection
+
+    void Start()
+    {
+        _originalScale = LawnMowerObject.localScale;
+
+        Tween.Spline(
+            ChaseSpline,
+            LawnMowerObject,
+            0,
+            1,
+            false,
+            chaseDuration,
+            chaseDelay,
+            Tween.EaseInOut,
+            Tween.LoopType.PingPong,
+            onComplete: OnTweenComplete
+        );
+    }
+
+    private void OnTweenComplete()
+    {
+        _movingForward = !_movingForward;
+        Flip(_movingForward);
+    }
+
+    private void OnTweenUpdate()
+    {
+        // Find the current percentage along the spline
+        float percentage = ChaseSpline.ClosestPoint(LawnMowerObject.position);
+
+        // Detect anchor arrival and flip accordingly
+        if (_facingRight && percentage >= 1f - AnchorThreshold)
+        {
+            Flip(false); // Face left at end anchor
+            _facingRight = false;
+        }
+        else if (!_facingRight && percentage <= AnchorThreshold)
+        {
+            Flip(true); // Face right at start anchor
+            _facingRight = true;
+        }
+
+        _lastPercentage = percentage;
+    }
+
+    private void Flip(bool faceRight)
+    {
+        var scale = _originalScale;
+        scale.x = Mathf.Abs(scale.x) * (faceRight ? 1 : -1);
+        LawnMowerObject.localScale = scale;
+    }
+
+    void Update() { }
+}

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