feat: add UI manager

Assets/_Scripts/Managers/UIManager.cs

@@ -0,0 +1,19 @@
+using TMPro;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class UIManager : MonoBehaviour
+{
+    [Header("Score UI")]
+    [SerializeField] private TextMeshProUGUI _scoreText;
+    [SerializeField] private Slider _experienceSlider;
+    [SerializeField] private TextMeshProUGUI _multiplierText;
+
+    public void SetScoreText(int value) => _scoreText.text = value.ToString();
+
+    public void SetExperienceSliderValue(int value) => _experienceSlider.value = value;
+
+    public void SetExperienceSliderMaxValue(int value) => _experienceSlider.maxValue = value;
+
+    public void SetMultiplierText(int value) => _multiplierText.text = $"×{value}";
+}

Assets/_Scripts/Managers/UIManager.cs.meta

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