//doesnt have to be a remote procedure call, since only the defender calls such a function
//instead we'll just make it public
//[PunRPC]
public GameObject upgradeTower()
{
//if already at max level, we can't upgrade anymore
if (towerLevel == 3)
{
return(null);
}
//if we are not the defenders (owners of this tower, we cannot upgrade it)
//this will prevent a malicious opponent from hacking and upgrading a weak tower to cost the defender money
if (!photonView.isMine)
{
return(null);
}
//safety check on the defender manager
if (dms == null)
{
dms = GameObject.Find("DefenderManager").GetComponent <DefenderManagerScript> ();
Debug.Log("dms was null");
}
//now that we're sure we want to upgrade the tower:
int newTowerLevel = towerLevel + 1;
//set free the spot that the old tower occupied, since we want to create a new upgraded tower
dms.availableSpots [gridPositionX, gridPositionY] = true;
//create a new tower (with a higher level) and destroy the old one
GameObject newTower = dms.buildTower(towerName, newTowerLevel, gridPositionX, gridPositionY);
if (gameObject.GetComponent <PhotonView> ().isMine)
{
PhotonNetwork.Destroy(this.gameObject);
}
return(newTower);
}
//will help in spotting if humans are in range
//RaycastHit hit;
//Ray ray;
// Use this for initialization
void Start()
{
towerHealth = 100;
isFiring = false;
//first we need to find the defenderManager to tell it to create a tower in case of an upgrade
DefenderManagerScript dms = GameObject.Find("DefenderManager").GetComponent <DefenderManagerScript>();
//note: this can be set to the current time to prevent towers from shooting at their creation or upgrade, but will be kept as a feature
//this way so that players can upgrade to get a quick shot
lastShootTime = 0;
}
//when selling a tower, destroy the tower and give the player roughly 1/4 of its price
public void sellTower()
{
//calculate money to be increased (based on tower type and level). implement formula
//the increment was moved to the code in the "sell" button
//safety check
if (dms == null)
{
dms = GameObject.Find("DefenderManager").GetComponent <DefenderManagerScript> ();
Debug.Log("dms was null");
}
//free up where the sold tower used to be
dms.availableSpots [gridPositionX, gridPositionY] = true;
//destroy this tower using photon network destroy
if (gameObject.GetComponent <PhotonView> ().isMine)
{
PhotonNetwork.Destroy(this.gameObject);
}
}
void Update()
{
//safety check
if (dms == null)
{
dms = GameObject.Find("DefenderManager").GetComponent <DefenderManagerScript>();
Debug.Log("dms was null");
}
//display the updated number of souls that the defender has
gameObject.GetComponent <UILabel>().text = ("Souls: " + dms.souls);
//Detect the winning condition of the aliens
//TODO: game designer to choose threshold
int winningSoulsThreshold = 5000;
if (dms.souls >= winningSoulsThreshold)
{
//run the remote procedure call so that both players run the function
GameObject.Find("Label - Winner").GetComponent <PhotonView>().RPC("DeclareVictory", PhotonTargets.All, new object[] { "aliens" });
}
}
void Start()
{
dms = GameObject.Find("DefenderManager").GetComponent <DefenderManagerScript>();
}
// Use this for initialization
void Start()
{
dms = defenderManager.GetComponent <DefenderManagerScript>();
}
public void spawnTower(string towerType)
{
//make sure the player is in a room
if (!PhotonNetwork.inRoom)
{
return;
}
//safety check. if defender manager script is null, look for it
if (dms == null)
{
dms = defenderManager.GetComponent <DefenderManagerScript> ();
}
//create a ray to see where the user is pointing
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
//check on what the ray hits
if (Physics.Raycast(ray, out hitInfo))
{
//Debug.Log("Mouse is over: " + hitInfo.collider.name);
float x, y, z;
//storing the location of the collision
x = hitInfo.point.x;
y = hitInfo.point.y;
z = hitInfo.point.z;
//Debug.Log("at position: " + x + "," + y + "," + z);
GameObject hitObject = hitInfo.transform.root.gameObject;
//now we determine if they ray casted is on which of the cells. The details are in this comment:
//the droppable area goes from (233,0.01,251) till (412,0.01,366)
//it is divided into a grid of 6 cells by 9 cells. IE along the x-z axis it looks like:
// (233,366) (412,366)
//
// (233, 251) (412,251)
//if the mouse is on the grid dedicated for towers, then try to place a tower
if (hitInfo.collider.name == "Droppable Area")
{
float xDifference = x - 233; //goes from 0 to 179
float zDifference = z - 251; //goes from 0 to 115
//adding a 5 to maximum differences as a safety margin
const float maxXDifference = 412 - 233 + 5; //179 --> 184
const float maxZDifference = 366 - 251 + 5; //115 --> 120
int xCoordinate = (int)(xDifference * 9 / maxXDifference); //going form 0 to 8
int zCoordinate = (int)(zDifference * 6 / maxZDifference); //going from 0 to 5
//if (Input.GetMouseButtonDown (0)) {
//TODO: ask a game designer for specific tower prices. This will do for now
int towerBuildCost = 50;
//if the tower is affordable, build it
if (dms.souls >= towerBuildCost)
{
dms.souls -= towerBuildCost;
dms.buildTower(towerType, 1, xCoordinate, zCoordinate);
}
//}
}
}
}
//this method will split all the towers based on their name (type of tower) and make each tower behave differently
//for simplicity the 4 shooting towers are running the same code
void performFunctionality()
{
//safety check
if (dms == null)
{
dms = GameObject.Find("DefenderManager").GetComponent <DefenderManagerScript> ();
Debug.Log("dms was null");
}
//check to see if this tower is dead
if (towerHealth <= 0)
{
//free up where the dead tower used to be
dms.availableSpots [gridPositionX, gridPositionY] = true;
if (gameObject.GetComponent <PhotonView> ().isMine)
{
PhotonNetwork.Destroy(this.gameObject);
}
}
//each tower casts a ray of length "shootingRange" and starts firing if there are enemies in that area
RaycastHit[] hits = Physics.RaycastAll(transform.position, gameObject.transform.forward, shootingRange);
isFiring = false;
if (hits != null)
{
//if the ray collided with an object AND the object is a human, start firing, else stop firing (the stop firing is set above (2 lines before this))
foreach (RaycastHit hit in hits)
{
if (hit.collider.tag == "Human")
{
isFiring = true;
//Debug.Log ("SUCCESS from turret " + towerName);
}
}
}
//for simplicity of the code, treat all towers that have the same logic of shooting particles together
//and start by letting all of them fire the same particle at their perspective fireRate
switch (towerName)
{
case "Tow_Cannon":
case "Tow_Crossbow":
case "Tow_Gatling":
case "Tow_Mortar":
//when no enemies(humans) are within this tower's range then just break
if (!isFiring)
{
//can implement a penalty for idle towers by letting those that are not firing cost 1 soul per time interval as upkeep cost
//this will make it harder for the defender and require more strategy from the player
break;
}
//the delay between each bullet and the next, launched from this tower
float fireDelay = 10f / fireRate;
//if we already fired 'relatively' soon, dont fire now
if (Time.realtimeSinceStartup - lastShootTime < fireDelay)
{
return;
}
//set this shot time to be the last shot time
lastShootTime = Time.realtimeSinceStartup;
//now that we want to shoot we have to fire an RPC for each projectile
//RPCs are used because there will be alot of bullets in the scene and this way we cut down on number of gameObjects to update over the netwerk
//since RPCs are only fired once
//PhotonView.RPC("launchProjectile",PhotonTargets.All, new object[] {} );
gameObject.GetComponent <PhotonView>().RPC("launchProjectile", PhotonTargets.All, new object[] {});
break;
case "Tow_Radar":
//as fireRate increases with each upgrade, the boost delay will be less with each upgrade and tower will produce souls faster
float boostDelay = 5 / fireRate;
//the radars produce souls randomly at a rate based on their level
if ((Time.realtimeSinceStartup - lastShootTime) < boostDelay)
{
return;
}
dms.souls = dms.souls + 10;
lastShootTime = Time.realtimeSinceStartup;
break;
default:
break;
}
}
