// Update is called once per frame
void Update()
{
if (Input.GetMouseButtonDown(0))
{
// frontmostRaycastHit stores information about the RaycastHit2D that is returned by GetFrontmostRaycastHit()
frontmostRaycastHit = GetFrontmostRaycastHit();
// If frontmostRaycastHit is true, i,e the user hasn't clicked on nothing, i.e GetFrontmostRaycastHit() didn't return nothing...
if (frontmostRaycastHit.nothingClicked == false)
{
// Assigns the game object that the collider that has been clicked on to leftClickedObject.
leftClickedObject = frontmostRaycastHit.rayCastHit2D.collider.gameObject;
// Sends the frontmostRaycast to a function called OnLeftClick in a script attached to whatever the leftClickedObject is.
leftClickedObject.SendMessage("OnLeftClick", frontmostRaycastHit, SendMessageOptions.DontRequireReceiver);
}
}
// If the right mouse button is clicked anywhere...
else if (Input.GetMouseButtonDown(1))
{
// frontmostRaycastHit stores information about the RaycastHit2D that is returned by GetFrontmostRaycastHit()
frontmostRaycastHit = GetFrontmostRaycastHit();
// If frontmostRaycastHit is true, i,e the user hasn't clicked on nothing, i.e GetFrontmostRaycastHit() didn't return nothing...
if (frontmostRaycastHit.nothingClicked == false)
{
// Assigns the game object that the collider that has been clicked on to rightClickedObject.
rightClickedObject = frontmostRaycastHit.rayCastHit2D.collider.gameObject;
// Sends the frontmostRaycast to a function called OnLeftClick in a script attached to whatever the rightClickedObject is.
rightClickedObject.SendMessage("OnRightClick", frontmostRaycastHit, SendMessageOptions.DontRequireReceiver);
}
}
}
public Clicked Click(Vector2 touch)
{
// If the left mouse button is clicked anywhere...
//if (Input.GetMouseButtonDown(0))
//{
// frontmostRaycastHit stores information about the RaycastHit2D that is returned by GetFrontmostRaycastHit()
frontmostRaycastHit = GetFrontmostRaycastHit(touch);
if (frontmostRaycastHit.rayCastHit2D.collider != null) {
clickable.clicked_object = frontmostRaycastHit.rayCastHit2D.collider.gameObject;
clickable.isClicked = !frontmostRaycastHit.nothingClicked;
}
else
clickable.isClicked = false;
return clickable;
//}
}
GetFrontmostRaycastHitResult GetFrontmostRaycastHit(Vector2 touch)
{
GetFrontmostRaycastHitResult result = new GetFrontmostRaycastHitResult();
Vector3 screenPosition = new Vector3(touch.x,touch.y,0f);
// Store the point where the user has clicked as a Vector3.
Camera mainCam = Camera.main;
//Vector3 clickPosition = Camera.main.ScreenToWorldPoint(screenPosition);
Vector3 clickPosition = mainCam.ScreenToWorldPoint(screenPosition);
//Camera cam2 = GameObject.Find("Camera").GetComponent<Camera>();
//Vector3 clickPosition2 = cam2.ScreenToWorldPoint(screenPosition);
LayerMask removedLayer = ~LayerMask.NameToLayer("ItemDisplayFrame");
// Retrieve all raycast hits from the click position and store them in an array called "hits".
RaycastHit2D[] hits = Physics2D.LinecastAll (clickPosition, clickPosition/*, removedLayer*/);
//RaycastHit2D[] hits2 = Physics2D.LinecastAll(clickPosition2, clickPosition2/*, removedLayer*/);
if (hits.Length/*+hits2.Length*/ != 0)
{
// A variable that will store the frontmost sorting layer that contains an object that has been clicked on as an int.
int topSortingLayer = 0;
int indexOfTopSortingLayer;
// An array that stores the IDs of all the sorting layers that contain a sprite in the path of the linecast.
int[] sortingLayerIDArray = new int[hits.Length];//+hits2.Length];
// An array that stores the sorting orders of each sprite that has been hit by the linecast
int[] sortingOrderArray = new int[hits.Length];//+hits2.Length];
// An array that stores the sorting order number of the frontmost sprite that has been clicked.
int topSortingOrder = 0;
// A variable that will store the index in the sortingOrderArray where topSortingOrder is. This index used with the hits array will give us our frontmost clicked sprite.
int indexOfTopSortingOrder = 0;
bool hit = false;
// Loop through the array of raycast hits...
for (int i = 0; i < hits.Length;/*+hits2.Length;*/ i++)
{
// Get the SpriteRenderer from each game object under the click.
if (i < hits.Length)
{
spriteRenderer = hits[i].collider.gameObject.GetComponent<SpriteRenderer>();
}
else
{
//spriteRenderer = hits2[i-hits.Length].collider.gameObject.GetComponent<SpriteRenderer>();
}
if (spriteRenderer != null)
{
sortingLayerIDArray[i] = spriteRenderer.sortingLayerID;
sortingOrderArray[i] = spriteRenderer.sortingOrder;
hit = true;
}
}
if (!hit)
{
if (showDebug)Debug.Log("Nothing clicked.");
result.nothingClicked = true;
return result;
}
// Loop through the array of sprite sorting layer IDs...
for (int j = 0; j < sortingLayerIDArray.Length; j++)
{
// If the sortingLayerID is higher that the topSortingLayer...
if (sortingLayerIDArray[j] >= topSortingLayer)
{
topSortingLayer = sortingLayerIDArray[j];
indexOfTopSortingLayer = j;
}
}
// Loop through the array of sprite sorting orders...
for (int k = 0; k < sortingOrderArray.Length; k++)
{
// If the sorting order of the sprite is higher than topSortingOrder AND the sprite is on the top sorting layer...
if (sortingOrderArray[k] >= topSortingOrder && sortingLayerIDArray[k] == topSortingLayer)
{
topSortingOrder = sortingOrderArray[k];
indexOfTopSortingOrder = k; //Set index of sprite that is on top layer
}
else
{
// Do nothing and continue loop.
}
}
// How many sprites with colliders attached are underneath the click?
//if (showDebug) Debug.Log("How many sprites have been clicked on: " + (hits.Length+hits2.Length).ToString());
// Which is the sorting layer of the frontmost clicked sprite?
if (showDebug)Debug.Log("Frontmost sorting layer ID: "+ topSortingLayer);
// Which is the order in that sorting layer of the frontmost clicked sprite?
if (showDebug)Debug.Log("Frontmost order in layer: "+ topSortingOrder);
// The indexOfTopSortingOrder will also be the index of the frontmost raycast hit in the array "hits".
/*if (indexOfTopSortingOrder >= hits.Length)
{
result.rayCastHit2D = hits2[indexOfTopSortingOrder-hits.Length];
}
else
{*/
result.rayCastHit2D = hits[indexOfTopSortingOrder];
//}
result.nothingClicked = false;
return result;
}
else // If the hits array has a length of 0 then nothing has been clicked...
{
if (showDebug)Debug.Log("Nothing clicked.");
result.nothingClicked = true;
return result;
}
}
GetFrontmostRaycastHitResult GetFrontmostRaycastHit()
{
GetFrontmostRaycastHitResult result = new GetFrontmostRaycastHitResult();
// Store the point where the user has clicked as a Vector3.
Vector3 clickPosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
// Retrieve all raycast hits from the click position and store them in an array called "hits".
RaycastHit2D[] hits = Physics2D.LinecastAll(clickPosition, clickPosition);
// If the raycast hits something...
if (hits.Length != 0)
{
// A variable that will store the frontmost sorting layer that contains an object that has been clicked on as an int.
int topSortingLayer = 0;
// A variable that will store the index of the top sorting layer as an int.
int indexOfTopSortingLayer;
// An array that stores the IDs of all the sorting layers that contain a sprite in the path of the linecast.
int[] sortingLayerIDArray = new int[hits.Length];
// An array that stores the sorting orders of each sprite that has been hit by the linecast
int[] sortingOrderArray = new int[hits.Length];
// An array that stores the sorting order number of the frontmost sprite that has been clicked.
int topSortingOrder = 0;
// A variable that will store the index in the sortingOrderArray where topSortingOrder is. This index used with the hits array will give us our frontmost clicked sprite.
int indexOfTopSortingOrder = 0;
// Loop through the array of raycast hits...
for (var i = 0; i < hits.Length; i++)
{
// Get the SpriteRenderer from each game object under the click.
spriteRenderer = hits[i].collider.gameObject.GetComponent <SpriteRenderer>();
// Access the sortingLayerID through the SpriteRenderer and store it in the sortingLayerIDArray.
sortingLayerIDArray[i] = spriteRenderer.sortingLayerID;
// Access the sortingOrder through the SpriteRenderer and store it in the sortingOrderArray.
sortingOrderArray[i] = spriteRenderer.sortingOrder;
}
// Loop through the array of sprite sorting layer IDs...
for (int j = 0; j < sortingLayerIDArray.Length; j++)
{
// If the sortingLayerID is higher that the topSortingLayer...
if (sortingLayerIDArray[j] >= topSortingLayer)
{
topSortingLayer = sortingLayerIDArray[j];
indexOfTopSortingLayer = j;
}
}
// Loop through the array of sprite sorting orders...
for (int k = 0; k < sortingOrderArray.Length; k++)
{
// If the sorting order of the sprite is higher than topSortingOrder AND the sprite is on the top sorting layer...
if (sortingOrderArray[k] >= topSortingOrder && sortingLayerIDArray[k] == topSortingLayer)
{
topSortingOrder = sortingOrderArray[k];
indexOfTopSortingOrder = k;
}
else
{
// Do nothing and continue loop.
}
}
// How many sprites with colliders attached are underneath the click?
if (showDebug)
{
Debug.Log("How many sprites have been clicked on: " + hits.Length);
}
// Which is the sorting layer of the frontmost clicked sprite?
if (showDebug)
{
Debug.Log("Frontmost sorting layer ID: " + topSortingLayer);
}
// Which is the order in that sorting layer of the frontmost clicked sprite?
if (showDebug)
{
Debug.Log("Frontmost order in layer: " + topSortingOrder);
}
// The indexOfTopSortingOrder will also be the index of the frontmost raycast hit in the array "hits".
result.rayCastHit2D = hits[indexOfTopSortingOrder];
result.nothingClicked = false;
return(result);
}
else // If the hits array has a length of 0 then nothing has been clicked...
{
if (showDebug)
{
Debug.Log("Nothing clicked.");
}
result.nothingClicked = true;
return(result);
}
}
