// check if a point in a triangle is on the correct side and not on the half that is connected to a mesh
// usefull for adding vertixes, all points in local space
public static bool IsPointOpposingMesh(Vector3 checkPoint, Vector3 upCorner, Vector3 lowCorner, Mesh m)
{
//check whether or not the side on which the new vertex should be placed is not positioned towards the mesh => dont allow overlapping-mesh-trinagles
Vector3 selectionMiddlePos = new Vector3((upCorner.x + lowCorner.x) / 2, (upCorner.y + lowCorner.y) / 2, upCorner.z);
Vector3 selectionDirection = (upCorner - lowCorner).normalized;
// directional vectors pointing in 90° angles from the direction of the line between both selections
Vector3 leftMiddleCheck = Quaternion.AngleAxis(90, Vector3.forward) * selectionDirection;
Vector3 rightMiddleCheck = Quaternion.AngleAxis(-90, Vector3.forward) * selectionDirection;
// actual checking positions to the left and right of the middle of the line
Vector3 leftMiddleCheckPos = selectionMiddlePos + leftMiddleCheck;
Vector3 rightMiddleCheckPos = selectionMiddlePos + rightMiddleCheck;
bool leftCheckInsideMesh = VertHelper.IsInsideMesh(m, Vector3.zero, leftMiddleCheckPos);
bool rightCheckInsideMesh = VertHelper.IsInsideMesh(m, Vector3.zero, rightMiddleCheckPos);
// one of these two poisions is not inside a mesh => allowed direction
// get which direction the to-be-added position is facing
VertHelper.Side sideToAdd = VertHelper.SideCheck(lowCorner, upCorner, checkPoint);
if (!leftCheckInsideMesh && sideToAdd == VertHelper.Side.left || !rightCheckInsideMesh && sideToAdd == VertHelper.Side.right)
{
return(true);
}
return(false);
//Debug.Log("sideToAdd " + sideToAdd + " leftCheckInsideMesh " + leftCheckInsideMesh + " rightCheckInsideMesh " + rightCheckInsideMesh);
//Debug.Log("leftMiddleCheckPos " + leftMiddleCheckPos + " rightMiddleCheckPos " + rightMiddleCheckPos);
//Debug.Log("1: " + selectedPosUp + " 2: " + selectedPosDown + " checkPos: " + selectionMiddlePos);
}
// while dragging, transform the selected handles
public void OnDrag(PointerEventData eventData)
{
Vector3 dragPos = Camera.main.ScreenToWorldPoint(eventData.position);
dragPos.z = 0;
Vector3 dragDelta = (dragStart - dragPos);
dragDelta.z = 0;
Vector3 newPos;
// alter positions based on the original position plus the drag delta
for (int i = 0; i < VertHandler.selectedHandles.Count; i++)
{
newPos = beforeDragPositions[i] - dragDelta;
Mesh m = LevelPlacer.generatedLevel.moveArea.meshFilter.mesh;
Vector3 localOldPos = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(VertHandler.selectedHandles[i].transform.position);
Vector3 localnewPos = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(newPos);
// check if the desired position is not crossing the triangle and if its not inside the mesh
if (!VertHelper.IsInsideMesh(m, localOldPos, localnewPos) && VertHelper.IsHandlerPositionValid(localOldPos, localnewPos))
{
// update the selection triangle verts
if (VertHandler.selectionTriangleVerts.Any(x => x == localOldPos))
{
// get all vector entries that are equal to this position and replace them with the newest position
List <int> indexes = Enumerable.Range(0, VertHandler.selectionTriangleVerts.Count).Where(k => VertHandler.selectionTriangleVerts[k] == localOldPos).ToList();
foreach (int ind in indexes)
{
VertHandler.selectionTriangleVerts[ind] = localnewPos;
}
}
VertHandler.selectedHandles[i].transform.position = newPos;
}
}
if (VertHandler.quickDragHandle != null && VertHandler.selectedHandles.Count == 0)
{
newPos = quickDragBefore - dragDelta;
Mesh m = LevelPlacer.generatedLevel.moveArea.meshFilter.mesh;
Vector3 localOldPos = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(transform.position);
Vector3 localnewPos = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(newPos);
// check if the desired position is not crossing the triangle and if its not inside the mesh
if (!VertHelper.IsInsideMesh(m, localOldPos, localnewPos) && VertHelper.IsHandlerPositionValid(localOldPos, localnewPos))
{
VertHandler.quickDragHandle.transform.position = newPos;
}
}
}
// Input Control, listens for key input, mouse/touch input and switches EditorModes / selects objects / adds vertices
private void Update()
{
#if UNITY_EDITOR
if (Input.GetKeyDown(KeyCode.KeypadMinus))
{
if (cam.orthographicSize + keyboardZoomStep <= maxSize)
cam.orthographicSize += keyboardZoomStep;
}
else if (Input.GetKeyDown(KeyCode.KeypadPlus))
{
if (cam.orthographicSize - keyboardZoomStep >= minSize)
cam.orthographicSize -= keyboardZoomStep;
}
else if (Input.GetKeyDown(KeyCode.Return))
{
if (!UIObjectPreferences.menuOpen)
{
if (LevelEditor.TryTestLevel())
{
SoundManager.ButtonClicked();
// animations
}
}
}
#endif
#if UNITY_ANDROID
// No items or verticies get curretly dragged and no menu is open, thus listen for input
if (!vertexDragged && !UIObjectPreferences.menuOpen)
{
// If there are two touches on the device manage the editor view (zooming/moving)
if (Input.touchCount == 2 && UILevelEditor._instance.inventoryScrollRect.velocity.x == 0)
{
// Store both touches.
Touch touchZero = Input.GetTouch(0);
Touch touchOne = Input.GetTouch(1);
// Find the position in the previous frame of each touch.
Vector2 touchZeroPrevPos = touchZero.position - touchZero.deltaPosition;
Vector2 touchOnePrevPos = touchOne.position - touchOne.deltaPosition;
// Find the magnitude of the vector (the distance) between the touches in each frame.
float prevTouchMag = (touchZeroPrevPos - touchOnePrevPos).magnitude;
float touchMag = (touchZero.position - touchOne.position).magnitude;
float touchDeltaMag = (touchZero.position - touchOne.position).magnitude;
// Find the difference in the distances between each frame.
float deltaMagnitudeDiff = prevTouchMag - touchMag;
// fingers moving fast towards each other or fast away from each other => zooming
if (touchMag + panThreshold < prevTouchMag || touchMag > prevTouchMag + panThreshold)
{
// Change the orthographic size based on the change in distance between the touches.
float sizeToChange = deltaMagnitudeDiff * zoomSpeed;
if ((sizeToChange > 0 && (cam.orthographicSize + sizeToChange) < maxSize) || (sizeToChange < 0 && (cam.orthographicSize + sizeToChange) > minSize))
{
cam.orthographicSize += sizeToChange;
}
}
// panning => move the camera
else
{
Vector3 touchDeltaPosition = new Vector3(-touchZero.deltaPosition.x * Time.deltaTime * 500, -touchZero.deltaPosition.y * Time.deltaTime * 500, 0);
transform.position += touchDeltaPosition;
//transform.Translate(touchDeltaPosition.x * Time.deltaTime, touchDeltaPosition.y * Time.deltaTime, 0);
}
}
// only one finger touches the screen, control object selecting/vertex adding
else if (Input.touchCount == 1)
{
Touch touch = Input.GetTouch(0);
// touch click = > handle selection/ vertex adding
if (touch.phase == TouchPhase.Began)
{
Vector3 position = Camera.main.ScreenToWorldPoint(touch.position);
LevelObject l = GetLevelObjectAt(position);
if (l != null && l == LevelEditor.selectedObject && LevelEditor.selectedObject.objectType != LevelObject.ObjectType.moveArea)
{
objectDragged = true;
}
ClickHandler(position);
}
// touch drag => handle object movement
else if (touch.phase == TouchPhase.Moved)
{
// an object is selected, and it is not the movearea
if (objectDragged && LevelEditor.selectedObject != null && LevelEditor.selectedObject.objectType != LevelObject.ObjectType.moveArea && UILevelEditor._instance.inventoryScrollRect.velocity.x == 0)
{
Vector3 position = Camera.main.ScreenToWorldPoint(touch.position);
//position.y = Screen.height - position.y;
position.z = LevelEditor.selectedObject.transform.position.z;
if (VertHelper.IsInsideMesh(LevelPlacer.generatedLevel.moveArea.meshFilter.mesh, Vector3.zero, LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(position)))
LevelEditor.selectedObject.transform.position = position;
}
}
// touch drag end => snap the dragged object and save the changes that were made
else if (touch.phase == TouchPhase.Ended)
{
// an object is selected, and it is not the movearea
if (objectDragged && LevelEditor.selectedObject != null && LevelEditor.selectedObject.objectType != LevelObject.ObjectType.moveArea)
{
// move the selected object
Vector3 position = LevelEditor.selectedObject.transform.position;
position = VertHelper.Snap(position, false);
if (LevelEditor.selectedObject.transform.position != position)
{
LevelEditor.selectedObject.transform.position = position;
UndoManager.AddUndoPoint();
}
//itemDragged = false;
}
objectDragged = false;
}
}
#if UNITY_EDITOR
// both mouse buttons are held down => drag the editor view
else if (Input.GetMouseButton(0) && Input.GetMouseButton(1) && UILevelEditor._instance.inventoryScrollRect.velocity.x == 0)
{
Vector3 position = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector3 deltaPos = new Vector3(Input.GetAxis("Mouse X"), Input.GetAxis("Mouse Y")) * 40f;
deltaPos.z = 0F;
transform.position += deltaPos;
}
// one mouse button got clicked => handle selection/vertex adding
else if (Input.GetMouseButtonDown(0))
{
Vector3 position = Camera.main.ScreenToWorldPoint(Input.mousePosition);
ClickHandler(position);
}
// one mouse button is held down (aka "dragged") => try to move selected objects
else if (Input.GetMouseButton(0) && UILevelEditor._instance.inventoryScrollRect.velocity.x == 0)
{
// an object is selected, and it is not the movearea
if (LevelEditor.selectedObject != null && LevelEditor.selectedObject.objectType != LevelObject.ObjectType.moveArea)
{
//itemDragged = true;
// move the selected object
Vector3 position = Camera.main.ScreenToWorldPoint(Input.mousePosition);
Vector3 deltaPos = new Vector3(Input.GetAxis("Mouse X"), Input.GetAxis("Mouse Y")) * 40f;
deltaPos.z = 0F;
Vector3 newPos = LevelEditor.selectedObject.transform.position + deltaPos;
if (VertHelper.IsInsideMesh(LevelPlacer.generatedLevel.moveArea.meshFilter.mesh, Vector3.zero, LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(newPos)))
LevelEditor.selectedObject.transform.position = newPos;
}
}
// a mouse drag has ended, snap the dragged object and save the changes that were made
else if (Input.GetMouseButtonUp(0))
{
// an object is selected, and it is not the movearea
if (LevelEditor.selectedObject != null && LevelEditor.selectedObject.objectType != LevelObject.ObjectType.moveArea)
{
// move the selected object
Vector3 position = LevelEditor.selectedObject.transform.position;
position = VertHelper.Snap(position, false);
if (LevelEditor.selectedObject.transform.position != position)
{
LevelEditor.selectedObject.transform.position = position;
UndoManager.AddUndoPoint();
}
//itemDragged = false;
}
}
#endif
}
// lets handle special preference input when a menu is open (yaaay)
else if (UIObjectPreferences.menuOpen)
{
if (UIObjectPreferences.openedMenuType == LevelObject.ObjectType.portal)
{
if (Input.touchCount == 1)
{
Touch touch = Input.GetTouch(0);
// touch click = > handle selection/ vertex adding
if (touch.phase == TouchPhase.Began)
{
Vector3 position = Camera.main.ScreenToWorldPoint(touch.position);
ClickHandler(position);
}
}
else if (Input.GetMouseButtonDown(0))
{
Vector3 position = Camera.main.ScreenToWorldPoint(Input.mousePosition);
ClickHandler(position);
}
}
}
}
// checks for double clicks and selectes/deselects objects accordingly
private void ClickHandler(Vector3 position)
{
bool objectSelected = false;
if (LevelEditor.editorMode == LevelEditor.EditorMode.select)
{
// double click
if (Time.time - doubleClickTime < doubleClickDelay && doubleClickTime > 0)
{
LevelObject levelObject = GetLevelObjectAt(position);
if (levelObject != null)
{
Debug.Log("SELECTED OBJ " + levelObject.name);
LevelEditor.SetSelectedObject(levelObject);
objectSelected = true;
}
// the raycast didn't select any levelobjects
if (!objectSelected)
{
Vector3 localPos = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(position);
bool clickInsideMesh = VertHelper.IsInsideMesh(LevelPlacer.generatedLevel.moveArea.meshFilter.mesh, Vector3.zero, localPos);
// we double clicked inside the mesh => select the mesh
if (clickInsideMesh)
{
LevelEditor.SetSelectedObject(LevelPlacer.generatedLevel.moveArea);
objectSelected = true;
}
}
}
}
else if (LevelEditor.editorMode == LevelEditor.EditorMode.edit)
{
if (Time.time - doubleClickTime < doubleClickDelay && doubleClickTime > 0)
{
LevelObject levelObject = GetLevelObjectAt(position);
if (levelObject != null)
{
// same object got selected again, deselect it
if (levelObject == LevelEditor.selectedObject)
{
LevelEditor.SetSelectedObject(null);
objectSelected = true;
}
// a new object gets selected, replace the old selection with the new one.
else if (levelObject != LevelEditor.selectedObject)
{
LevelEditor.SetSelectedObject(levelObject);
objectSelected = true;
}
}
// the raycast didn't select any levelobjects
if (!objectSelected)
{
Vector3 localPos = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(position);
bool clickInsideMesh = VertHelper.IsInsideMesh(LevelPlacer.generatedLevel.moveArea.meshFilter.mesh, Vector3.zero, localPos);
// we double clicked inside the mesh => select the mesh
if (clickInsideMesh)
{
if (LevelEditor.selectedObject.objectType != LevelObject.ObjectType.moveArea)
LevelEditor.SetSelectedObject(LevelPlacer.generatedLevel.moveArea);
else
LevelEditor.SetSelectedObject(null);
objectSelected = true;
}
}
}
Debug.Log(LevelEditor.selectedObject);
// there was no double click detected, if a movearea is selected, try to add vertices
if (LevelEditor.selectedObject != null && LevelEditor.selectedObject.objectType == LevelObject.ObjectType.moveArea && !Handle.vertGettingSelected)
{
Vector3 screenPosition = Camera.main.WorldToScreenPoint(position);
bool isInIgnoreArea = screenPosition.y < Camera.main.pixelHeight * ignoreBottomScreenPercent;
if (!isInIgnoreArea)
if (VertHandler._instance.VertexAdd(position))
{
SoundManager.ButtonClicked();
}
}
}
else if (LevelEditor.editorMode == LevelEditor.EditorMode.place)
{
// snapping
Vector3 snapPos = VertHelper.Snap(position, false);
LevelObject.ObjectType objectType = UILevelObject.currentSelectedObject.objectType;
Vector3 screenPosition = Camera.main.WorldToScreenPoint(snapPos);
bool isInIgnoreArea = screenPosition.y < Camera.main.pixelHeight * ignoreBottomScreenPercent;
// the snapping found a valid snap position around the given position
if (snapPos != Vector3.zero && !isInIgnoreArea)
{
Debug.Log("Buttom screen percent " + ignoreBottomScreenPercent + " screenPos.y " + screenPosition.y);
// return to selection mode and deselect the inventory item
LevelEditor.SetSelectedObject(LevelPlacer.generatedLevel.AddObject(objectType, snapPos));
UILevelObject.onItemSelect.Invoke(null);
}
}
else if (LevelEditor.editorMode == LevelEditor.EditorMode.portalLink)
{
if (Time.time - doubleClickTime < doubleClickDelay && doubleClickTime > 0)
{
LevelObject levelObject = GetLevelObjectAt(position);
if (levelObject != null)
{
if (levelObject.objectType == LevelObject.ObjectType.portal)
{
Portal p = levelObject.GetComponent<Portal>();
UIPortalMenu.SelectLinkPortal(p);
}
}
}
}
doubleClickTime = Time.time;
}
// add a vertex at the given position - called by EditorInput class
public bool VertexAdd(Vector3 pos)
{
Debug.Log("VertexAdd at " + pos);
if (showHandles && LevelPlacer.generatedLevel != null && handlesShown)
{
// two verticies are selected
if (selectedHandles.Count == 2)
{
Mesh m = new Mesh();
m = LevelPlacer.generatedLevel.moveArea.meshFilter.mesh;
Vector3 localPos = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(pos);
// everything ready for expanding the mesh
if (!VertHelper.IsInsideMesh(m, Vector3.zero, localPos))
{
// get the currect verticies
verts = m.vertices;
Vector3[] newVerts = new Vector3[verts.Length + 1];
for (int i = 0; i < verts.Length; i++)
{
newVerts[i] = verts[i];
}
// snap the position
pos = VertHelper.Snap(pos, true);
pos.z = 0;
Vector3 localSnapPos = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(pos);
// get both selected vertex positions
Vector3 selectedPosUp = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(selectedHandles[0].transform.position);
Vector3 selectedPosDown = LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(selectedHandles[1].transform.position);
// the first position is not above the second => switch them, otherwise left/right checks fail
if (selectedPosUp.y < selectedPosDown.y)
{
Vector3 upSave = selectedPosUp;
selectedPosUp = selectedPosDown;
selectedPosDown = upSave;
}
if (VertHelper.IsPointOpposingMesh(localSnapPos, selectedPosUp, selectedPosDown, m))
{
// add the new position to the vertex arrays
newVerts[verts.Length] = localSnapPos;
// get the triangles
int[] triangles = new int[m.triangles.Length + 3];
for (int s = 0; s < m.triangles.Length; s++)
{
triangles[s] = m.triangles[s];
}
// add a new triangle by referencing the two selected verticies plus the new one
// add selected verticies into a temporary storage
int[] newIndicies = new int[3];
newIndicies[0] = newVerts.Length - 1;
for (int i = 0; i < newVerts.Length; i++)
{
// the interated vertex fits to the first selected handler
if (LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(selectedHandles[0].transform.position) == newVerts[i])
{
newIndicies[1] = i;
}
// the interated vertex fits to the second selected handler
else if (LevelPlacer.generatedLevel.moveArea.transform.InverseTransformPoint(selectedHandles[1].transform.position) == newVerts[i])
{
newIndicies[2] = i;
}
}
// sort the triangle verticies in a clockwise order to ensure the triangle faces our direction and wont get rendered backwards
Vector3[] triangleVerts = new Vector3[3];
triangleVerts[0] = newVerts[newIndicies[0]];
triangleVerts[1] = newVerts[newIndicies[1]];
triangleVerts[2] = newVerts[newIndicies[2]];
// calculate the center of the triangle
Vector2 center = (triangleVerts[0] + triangleVerts[1] + triangleVerts[2]) / 3;
Array.Sort(triangleVerts, new ClockwiseComparer(center));
for (int i = 0; i < newVerts.Length; i++)
{
// the interated vertex fits to the first selected handler
if (triangleVerts[0] == newVerts[i])
{
newIndicies[0] = i;
}
// the interated vertex fits to the second selected handler
else if (triangleVerts[1] == newVerts[i])
{
newIndicies[1] = i;
}
else if (triangleVerts[2] == newVerts[i])
{
newIndicies[2] = i;
}
}
// add the sorted indicies to the triangles array
triangles[m.triangles.Length] = newIndicies[0];
triangles[m.triangles.Length + 1] = newIndicies[1];
triangles[m.triangles.Length + 2] = newIndicies[2];
// update the mesh
m.vertices = newVerts;
m.triangles = triangles;
m.RecalculateBounds();
m.RecalculateNormals();
mesh = m;
LevelPlacer.generatedLevel.moveArea.meshFilter.mesh = m;
// recalculate handles
selectedHandles = new List <Handle>();
DestroyHandles();
Start();
return(true);
}
}
}
}
return(false);
}