day night cycle test

dncycletest

Assets/Quentin/DayNightCycle.cs

@@ -0,0 +1,91 @@
+using System.Collections;
+using UnityEngine;
+
+public class DayNightCycle : MonoBehaviour
+{
+    public SpriteRenderer daySky, eveningSky, nightSky;
+    public SpriteRenderer dayBackClouds, eveningBackClouds, nightBackClouds;
+    public SpriteRenderer dayFrontClouds, eveningFrontClouds, nightFrontClouds;
+
+    public float transitionDuration = 5f; // Duration of transition
+    public float cycleDuration = 60f; // Time before transitioning to next phase
+
+    private void Start()
+    {
+        // Set initial alpha (only day visible)
+        SetAlpha(daySky, 1);
+        SetAlpha(eveningSky, 0);
+        SetAlpha(nightSky, 0);
+
+        SetAlpha(dayBackClouds, 1);
+        SetAlpha(eveningBackClouds, 0);
+        SetAlpha(nightBackClouds, 0);
+
+        SetAlpha(dayFrontClouds, 1);
+        SetAlpha(eveningFrontClouds, 0);
+        SetAlpha(nightFrontClouds, 0);
+
+        // Start the cycle
+        StartCoroutine(DayNightCycleRoutine());
+    }
+
+    private IEnumerator DayNightCycleRoutine()
+    {
+        while (true)
+        {
+            yield return new WaitForSeconds(cycleDuration);
+            yield return StartCoroutine(FadeTransition(
+                new SpriteRenderer[] { daySky, dayBackClouds, dayFrontClouds }, 
+                new SpriteRenderer[] { eveningSky, eveningBackClouds, eveningFrontClouds },
+                transitionDuration));
+
+            yield return new WaitForSeconds(cycleDuration);
+            yield return StartCoroutine(FadeTransition(
+                new SpriteRenderer[] { eveningSky, eveningBackClouds, eveningFrontClouds }, 
+                new SpriteRenderer[] { nightSky, nightBackClouds, nightFrontClouds },
+                transitionDuration));
+
+            yield return new WaitForSeconds(cycleDuration);
+            yield return StartCoroutine(FadeTransition(
+                new SpriteRenderer[] { nightSky, nightBackClouds, nightFrontClouds }, 
+                new SpriteRenderer[] { daySky, dayBackClouds, dayFrontClouds },
+                transitionDuration));
+        }
+    }
+
+    private IEnumerator FadeTransition(SpriteRenderer[] from, SpriteRenderer[] to, float duration)
+    {
+        float elapsedTime = 0;
+        while (elapsedTime < duration)
+        {
+            elapsedTime += Time.deltaTime;
+            float alpha = elapsedTime / duration;
+
+            // Apply fading to all elements simultaneously
+            for (int i = 0; i < from.Length; i++)
+            {
+                SetAlpha(from[i], 1 - alpha);
+                SetAlpha(to[i], alpha);
+            }
+
+            yield return null;
+        }
+
+        // Ensure final alpha values are set correctly
+        for (int i = 0; i < from.Length; i++)
+        {
+            SetAlpha(from[i], 0);
+            SetAlpha(to[i], 1);
+        }
+    }
+
+    private void SetAlpha(SpriteRenderer sprite, float alpha)
+    {
+        if (sprite)
+        {
+            Color color = sprite.color;
+            color.a = alpha;
+            sprite.color = color;
+        }
+    }
+}