private static void MakeShadow(ShadowMakerHelper helper, GameObject ground)
{
// if there's a block above us, don't bother
if(IsGroundPresent(ground, new Vector2(0, 1))) {
return;
}
// if there's a block above to the left, make a west shadow
if(IsGroundPresent(ground, new Vector2(-1, 1))) {
CreateShadow(ground, helper.shadowWest);
}
// if there's a block above to the right, make an east shadow
if(IsGroundPresent(ground, new Vector2(1, 1))) {
CreateShadow(ground, helper.shadowEast);
}
}
public static void MakeShadows()
{
GameObject obj = GameObject.Find("ShadowMakerHelper");
if (obj == null)
{
Debug.LogError("No ShadowMakerHelper in the scene, please drag in the prefab");
return;
}
ShadowMakerHelper helper = obj.GetComponent <ShadowMakerHelper>();
RemoveShadows();
foreach (GameObject ground in GameObject.FindGameObjectsWithTag("Ground"))
{
MakeShadow(helper, ground);
}
}
private static void MakeShadow(ShadowMakerHelper helper, GameObject ground)
{
// if there's a block above us, don't bother
if (IsGroundPresent(ground, new Vector2(0, 1)))
{
return;
}
// if there's a block above to the left, make a west shadow
if (IsGroundPresent(ground, new Vector2(-1, 1)))
{
CreateShadow(ground, helper.shadowWest);
}
// if there's a block above to the right, make an east shadow
if (IsGroundPresent(ground, new Vector2(1, 1)))
{
CreateShadow(ground, helper.shadowEast);
}
}
public static void MakeShadow(GameObject ground, ShadowMakerHelper helper)
{
Vector3 basePos = ground.transform.position, pos;
// figure out yay/nay if the other 8 spots above this are empty
bool[,] filled = new bool[3, 3];
for(int i = 0; i < 3; i++) {
for(int j = 0; j < 3; j++) {
pos = new Vector3(basePos.x - 1 + i, basePos.y + 1, basePos.z - 1 + j);
filled[i, j] = IsGroundInPosition(pos);
}
}
//Debug.Log(ground.name + " filled is: ["
// + (filled[0, 0] ? "1" : "0")
// + (filled[1, 0] ? "1" : "0")
// + (filled[2, 0] ? "1" : "0")
// + "],["
// + (filled[0, 1] ? "1" : "0")
// + (filled[1, 1] ? "1" : "0")
// + (filled[2, 1] ? "1" : "0")
// + "],["
// + (filled[0, 2] ? "1" : "0")
// + (filled[1, 2] ? "1" : "0")
// + (filled[2, 2] ? "1" : "0")
// + "]");
HashSet<GameObject> toAdd = new HashSet<GameObject>();
// only look for shadows on top of us if there isn't something
// directly above us
pos = new Vector3(basePos.x, basePos.y + 1, basePos.z);
if(!IsGroundInPosition(pos)) {
if(filled[1, 2]) {
toAdd.Add(helper.shadowNorth);
} else {
if(!filled[0, 1] && filled[0, 2]) {
toAdd.Add(helper.shadowNorthWest);
}
if(!filled[2, 1] && filled[2, 2]) {
toAdd.Add(helper.shadowNorthEast);
}
}
if(filled[0, 1]) {
toAdd.Add(helper.shadowWest);
}
if(filled[2, 1]) {
toAdd.Add(helper.shadowEast);
}
if(filled[1, 0]) {
toAdd.Add(helper.shadowSouth);
} else {
if(!filled[0, 1] && filled[0, 0]) {
toAdd.Add(helper.shadowSouthWest);
}
if(!filled[2, 1] && filled[2, 0]) {
toAdd.Add(helper.shadowSouthEast);
}
}
}
// if there ISN'T a block south of us but there IS a block southWest,
// do ShadowSideWest to get a shadow on our front face
bool isSouthWest = IsGroundInPosition(
new Vector3(basePos.x - 1, basePos.y, basePos.z - 1));
bool isSouth = IsGroundInPosition(
new Vector3(basePos.x, basePos.y, basePos.z - 1));
if(isSouthWest && !isSouth) {
toAdd.Add(helper.shadowSideWest);
}
foreach(GameObject prefab in toAdd) {
GameObject obj = (GameObject)PrefabUtility.InstantiatePrefab(prefab);
obj.transform.parent = ground.transform;
obj.transform.position = basePos;
}
}
