koobas.hobune.stream
Spawn referencable objects with RayCast
Hello, i'm new to Unity and the whole scripting-thingy and am currently working on a RTS-Game with the Fury Framework.
I'm looking for a way, to spawn referencable objects with a click on a built terrain.
What i currently use:
public GameObject BuildingType;
[...]
PlaceBuilding(Input.mousePosition);
[...]
public void PlaceBuilding(Vector2 mousePosition)
{
RaycastHit hit = RayFromCamera(mousePosition, 1000.0f);
GameObject.Instantiate(BuildingType, hit.point, Quaternion.identity);
}
public RaycastHit RayFromCamera(Vector3 mousePosition, float rayLength)
{
RaycastHit hit;
Ray ray = Camera.main.ScreenPointToRay(mousePosition);
Physics.Raycast(ray, out hit, rayLength);
return hit;
}
I experience two problems with this:
The building spawns, but always spawns right in the middle of the screen/camera instead of where the mouse is. (I'm using custom-textured mouse-cursors)
How can i add specific scripts to these newly spawned objects (i can only modify them when the game is running) and use them as individual objects?
Thanks in advance!
To raycast at mouse position, you ray should be like this:
ray = Camera.main.ScreenPointToRay(Input.mousePosition);
For adding scripts to the objects: GameObject.AddComponent.
When i try to add scripts with AddComponent i get the Error, that an object reference is required to access non-static member "UnityEngine.Gameobject.AddComponent(string)". How do i get unique object references each time i spawn a given GameObject? Do i have to make a list of GameObjects in order to achieve this?
The fix for the raycast didn't work... i don't know why. Each time i press esc to cancel the game-mode i notice, that the mouse is automatically placed to the middle of the screen - maybe this has something to do with it. Think i have to check the GUI-Class, where the custom-mouse-cursor is handled.
