NEW: MouseEvents for InputSystem - Sending data from package & Samples and Tests (#2207)

Co-authored-by: Paulius Dervinis <[email protected]>
Co-authored-by: João Freire <[email protected]>
Co-authored-by: Håkan Sidenvall <[email protected]>

Author: 4 people

Assets/QA/MouseEvents.meta

@@ -0,0 +1,49 @@
+using System;
+using UnityEngine;
+using UnityEngine.InputSystem;
+using UnityEngine.InputSystem.EnhancedTouch;
+using Touch = UnityEngine.InputSystem.EnhancedTouch.Touch;
+
+public class OnMouseEventDragSample : MonoBehaviour
+{
+    private Vector3 screenPoint;
+    private Vector3 offset;
+
+    private Vector3 startPosition;
+    private bool wasDragging => Vector3.Distance(startPosition, transform.position) > 0.01f;
+    private bool selected;
+
+    // This logic starts the drag operation and safes the offset of the object position to the cursor position, to preserve the relative position.
+    void OnMouseDown()
+    {
+        if (Pointer.current == null)
+            return;
+
+        screenPoint = Camera.main.WorldToScreenPoint(gameObject.transform.position);
+        float x = Pointer.current.position.x.value;
+        float y = Pointer.current.position.y.value;
+        offset = gameObject.transform.position - Camera.main.ScreenToWorldPoint(new Vector3(x, y, screenPoint.z));
+        startPosition = transform.position;
+    }
+
+    // This logic allows dragging the object.
+    void OnMouseDrag()
+    {
+        if (Pointer.current == null)
+            return;
+
+        Vector3 curScreenPoint = new Vector3(Pointer.current.position.x.value, Pointer.current.position.y.value, screenPoint.z);
+        Vector3 curPosition = Camera.main.ScreenToWorldPoint(curScreenPoint) + offset;
+        transform.position = curPosition;
+    }
+
+    // This can be used to select objects. This logic allows dragging without selection.
+    private void OnMouseUp()
+    {
+        if (wasDragging)
+            return;
+
+        selected = !selected;
+        gameObject.GetComponent<Renderer>().material.SetColor("_Color", !selected ? Color.blue : Color.white);
+    }
+}