*topdown transform

1 files changed, 57 insertions, 0 deletions

diff --git a/AlienSurvival/Assets/Scripts/TopDown/TopDownShadowCaster.cs b/AlienSurvival/Assets/Scripts/TopDown/TopDownShadowCaster.cs
new file mode 100644
index 0000000..e027771
--- /dev/null
+++ b/AlienSurvival/Assets/Scripts/TopDown/TopDownShadowCaster.cs
@@ -0,0 +1,57 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[ExecuteInEditMode, DisallowMultipleComponent]
+[RequireComponent(typeof(TopDownTransform))]
+[RequireComponent(typeof(SpriteRenderer))]
+public class TopDownShadowCaster : MonoBehaviour
+{
+	[SerializeField] private Color m_Color = new Color32(0,0,0, 58);
+	[SerializeField] private Vector2 m_Scale = new Vector2(1, 0.5f);
+
+	private GameObject m_Shadow;
+	private SpriteRenderer m_ShadowRenderer;
+
+	private TopDownTransform m_Coord;
+	private SpriteRenderer m_SpriteRenderer;
+
+	public void Flip(bool flip)
+	{
+		m_ShadowRenderer.flipX = flip;
+	}
+
+	private void Start()
+	{
+		m_Coord = GetComponent<TopDownTransform>();
+		m_SpriteRenderer = GetComponent<SpriteRenderer>();
+
+		if (m_Shadow == null)
+		{
+			m_Shadow = new GameObject("shadow");
+			m_Shadow.hideFlags = HideFlags.HideAndDontSave;
+			m_Shadow.transform.SetParent(transform);
+
+			m_Shadow.transform.localScale = m_Scale;
+
+			m_ShadowRenderer = m_Shadow.AddComponent<SpriteRenderer>();
+			m_ShadowRenderer.color = m_Color;
+			m_ShadowRenderer.sprite = m_SpriteRenderer.sprite;
+			m_ShadowRenderer.sortingLayerName = "Shadow";
+
+		}
+	}
+
+	private void Update()
+	{
+		if (m_Shadow == null)
+			return;
+
+		m_ShadowRenderer.color = m_Color;
+		m_ShadowRenderer.sprite = m_SpriteRenderer.sprite;
+
+		Vector3 pos = m_Coord.GetGround3DPosition();
+		m_Shadow.transform.position = pos;
+	}
+
+}