Reapply "camera fix"

This reverts commit d47b0f991c.

Game/Assets/Scenes/0_MainScene.unity

@@ -4347,6 +4347,7 @@ GameObject:
   - component: {fileID: 750131492}
   - component: {fileID: 750131491}
   - component: {fileID: 750131493}
+  - component: {fileID: 750131494}
   m_Layer: 0
   m_Name: CinemachineCamera
   m_TagString: Untagged
@@ -4432,6 +4433,18 @@ MonoBehaviour:
     RotationDamping: {x: 0, y: 0, z: 0}
     QuaternionDamping: 1
   FollowOffset: {x: 0, y: 0, z: -10}
+--- !u!114 &750131494
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 750131489}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: f0a87a1c7758eb34587daa15a89d59d4, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: Assembly-CSharp::DownwardCamera
 --- !u!1001 &751558359
 PrefabInstance:
   m_ObjectHideFlags: 0

Game/Assets/Scripts/Camera.cs

@@ -0,0 +1,43 @@
+using UnityEngine;
+using Unity.Cinemachine;
+
+public class DownwardCamera : CinemachineExtension
+{
+    private float minY;
+    private bool isInitialized = false;
+
+    protected override void PostPipelineStageCallback(
+        CinemachineVirtualCameraBase vcam, 
+        CinemachineCore.Stage stage, 
+        ref CameraState state, 
+        float deltaTime)
+    {
+        if (stage == CinemachineCore.Stage.Body)
+        {
+            Vector3 pos = state.RawPosition;
+
+            if (!isInitialized)
+            {
+                minY = pos.y;
+                isInitialized = true;
+            }
+
+            if (pos.y < minY)
+            {
+                minY = pos.y;
+            }
+            // If it tries to move UP (higher Y), lock it to the lowest point we've reached
+            else
+            {
+                pos.y = minY;
+            }
+
+            state.RawPosition = pos;
+        }
+    }
+
+    public void ResetCamera()
+    {
+        isInitialized = false;
+    }
+}

Game/Assets/Scripts/Camera.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: f0a87a1c7758eb34587daa15a89d59d4