/// <summary>
/// I override this callback so that I can respond on the grid being
/// changed and place/ update the actual tile objects
/// </summary>
public override void OnGridChanged(bool created)
{
// The parent object that will hold all the instantiated tile objects
Transform parent = gameObject.transform;
// Remove existing tiles and place new ones if map was (re)created
// since the number of tiles might be different now
if (created)
{
for (int i = parent.childCount - 1; i >= 0; i--)
{
// was called from editor
Object.DestroyImmediate(parent.GetChild(i).gameObject);
}
// Place tiles according to the generated grid
for (int idx = 0; idx < grid.Length; idx++)
{
// make sure it is a valid node before placing tile here
if (false == grid[idx].isValid)
{
continue;
}
// create the visual tile
GameObject go = (GameObject)Instantiate(tileFab);
go.name = "Tile " + idx.ToString();
go.layer = tileLayer; // set the layer since I will need it in Sample4Controller to check what the player clicked on
go.tag = "Tile";
go.transform.position = grid[idx].position;
go.transform.parent = parent;
// MapNav created the node as the custom Sample4Tile type
// Now init the tileName property in it
NavalTile node = grid[idx] as NavalTile;
node.tileName = go.name;
node.tileObj = go;
}
}
// else, simply update the position of existing tiles
else
{
for (int idx = 0; idx < grid.Length; idx++)
{
// make sure it is a valid node before processing it
if (false == grid[idx].isValid)
{
continue;
}
// Since I gave the tiles proper names I can easily find them by name
GameObject go = parent.Find("Tile " + idx.ToString()).gameObject;
go.transform.position = grid[idx].position;
}
}
}
/// <summary>
/// I use this to link the tile and unit with each other so that the
/// tile and unit knows which unit is on the tile. I will pass null
/// to simply unlink the tile and unit.
/// </summary>
public void LinkWithTile(NavalTile t)
{
// first unlink the unit from the tile
if (tile != null)
{
tile.unit = null;
}
tile = t;
// if t == null then this was simply an unlink and it ends here
if (tile == null)
{
return;
}
// else tell the tile that this unit is on it
tile.unit = this;
}
public void SetDamage(int damage)
{
if (canDamage)
{
m_life -= damage;
canDamage = false;
StartCoroutine(ChangeColor());
}
if (m_life <= 0)
{
m_life = 0;
OnDeath(this);
// 取消敌船与地图网格的关联
LinkWithTile(null);
NavalTile last = path[path.Count - 1] as NavalTile;
last.target = false;
Destroy(this.gameObject);
}
}
void SpawnEnemy()
{
// 在六边形网格地图最右侧随机生成敌船
NavalTile sourceTile = null;
while (true)
{
int idx = map.mapHorizontalSize * (map.mapVerticalSize - 1) + Random.Range(0, map.mapHorizontalSize);
// make sure this is a valid node
if (map.ValidIDX(idx))
{
// now check if there is not already a unit on it
sourceTile = map.grid[idx] as NavalTile;
if (sourceTile.unit == null)
{
// no unit on it, lets use it
break;
}
}
}
// create the unit and place it on the tile
GameObject go = (GameObject)Instantiate(enemyFab);
go.transform.position = sourceTile.position;
go.layer = 9; // Units must be in layer 9
go.tag = "Enemy";
// be sure to tell the tile that this Unit is on it
EnemyUnit unit = go.GetComponent <EnemyUnit> ();
unit.Resetunit(); // reset its moves now too
unit.LinkWithTile(sourceTile);
unit.OnDeath += OnDeath;
enemyList.Add(unit); // keep a list of all enemies for quick access
// 设置敌船的随机目标
NavalTile targetTile = null;
while (true)
{
int idy = map.mapHorizontalSize * 1 + Random.Range(6, map.mapHorizontalSize - 6);
// set each enemy's targets
if (map.ValidIDX(idy))
{
targetTile = map.grid[idy] as NavalTile;
if (targetTile.target == false)
{
targetTile.target = true;
break;
}
}
}
List <MapNavNode> unitPath = map.Path <MapNavNode> (sourceTile, targetTile, OnNodeCostCallback);
if (unitPath != null)
{
unit.Move(unitPath, null);
}
// 更新敌人数量
curEnemyCount++;
}
