void Awake()
{
_boxCollider2D = GetComponent <BoxCollider2D>();
_spriteRenderer = transform.Find("sprite").GetComponent <SpriteRenderer>();
_buildingTypeHolder = GetComponent <BuildingTypeHolder>();
_constructionMaterial = _spriteRenderer.material;
}
bool CanSpawnBuilding(BuildingTypeSO buildingType, Vector3 position, out string errorMessage)
{
BoxCollider2D boxCollider2D = buildingType.prefab.GetComponent <BoxCollider2D>();
Collider2D[] collider2DArray =
Physics2D.OverlapBoxAll(position + (Vector3)boxCollider2D.offset, boxCollider2D.size, 0);
bool isAreaClear = collider2DArray.Length == 0;
if (!isAreaClear)
{
errorMessage = "Area is not clear!";
return(false);
}
collider2DArray = Physics2D.OverlapCircleAll(position, buildingType.minConstructionRadius);
foreach (Collider2D col in collider2DArray)
{
// Colliders inside the construction radius
BuildingTypeHolder buildingTypeHolder = col.GetComponent <BuildingTypeHolder>();
if (buildingTypeHolder != null)
{
if (buildingTypeHolder.buildingType == buildingType)
{
//There's already a building of this type within the construction radius!
errorMessage = "Too close ot another building of the same type!";
return(false);
}
}
}
float maxConstructionRadius = 25f;
collider2DArray = Physics2D.OverlapCircleAll(position, maxConstructionRadius);
foreach (Collider2D col in collider2DArray)
{
// Colliders inside the construction radius
BuildingTypeHolder buildingTypeHolder = col.GetComponent <BuildingTypeHolder>();
if (buildingTypeHolder != null)
{
// It's a building!
errorMessage = "";
return(true);
}
}
errorMessage = "Too far from any other building!";
return(false);
}
