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unity/Assets/Spine Examples/Scripts/DraggableTransform.cs

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+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated January 1, 2020. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2020, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
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+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
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+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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+
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Spine.Unity.Examples {
+	public class DraggableTransform : MonoBehaviour {
+
+		Vector2 mousePreviousWorld, mouseDeltaWorld;
+		Camera mainCamera;
+
+		void Start () {
+			mainCamera = Camera.main;
+		}
+
+		void Update () {
+			Vector2 mouseCurrent = Input.mousePosition;
+			Vector2 mouseCurrentWorld = mainCamera.ScreenToWorldPoint(new Vector3(mouseCurrent.x, mouseCurrent.y, -mainCamera.transform.position.z));
+
+			mouseDeltaWorld = mouseCurrentWorld - mousePreviousWorld;
+			mousePreviousWorld = mouseCurrentWorld;
+		}
+
+		void OnMouseDrag () {
+			transform.Translate(mouseDeltaWorld);
+		}
+	}
+}