koobas.hobune.stream
How can I draw a box ingame?
How can I make a script, which does this (see image) ingame on the canvas? It doesn't have to select things inside it, just draw a box with outline, and transparent on the inside
Best Answer
bool dragging = false;
Rect selectionBox;
Vector3 initialMousePosition;
Vector3 currentMousePosition;
void OnGUI()
{
Event event = Event.current;
if (event.type == EventType.MouseDrag)
{
if (!dragging)
{
dragging = true;
initialMousePosition = event.mousePosition;
}
}
if (event.type == EventType.MouseUp)
{
dragging= false;
}
if (dragging)
{
currentMousePosition = event.mousePosition;
selectionBox= new Rect(initialMousePosition.x, initialMousePosition.y, currentMousePosition.x - initialMousePosition.x, currentMousePosition.y - initialMousePosition.y);
GUI.Box(selectionBox, GUIContent.none);
}
}
For box without outline you can just add Image object to your canvas manipulate its alpha and color using Image object color variable. Changing its size, position can be done using simple scripts (if you want to change them runtime). For outline maybe just use custom texture for Image object which would be something like white square with f.e. 1px of black border, but with this strange texture stretching can occur from what I know :/.
