//we will only try to avoid colliding into 1 type of zombie: the shambler, because classic zombies can't change lanes.
//However, since classic zombies have a max speed greater than that of the shambler's, if a raycast FORWARD hits a shambler, it will slow down to v/2 to match the shambler
//only for the duration that the shambler hits the classic zombie's raycast.
void AvoidZombieCollision()
{
//if the raycast doesn't hit a shambler, let speed be v (the normal max speed)
bool hitShambler = false;
//these lines of code will shoot the raycast, and then will try to change lanes if raycast hits.
RaycastHit front;
Ray frontRay = new Ray(transform.position + transform.forward * .5f + transform.up * .5f, transform.forward);
Debug.DrawRay(transform.position + transform.forward * .5f + transform.up * .5f, transform.forward, Color.green);
if (Physics.Raycast(frontRay, out front, 1.5f))
{
if (front.collider.gameObject.tag == "Zombie")
{
//this code will check if the zombie is of type shambler.
ShamblerZombie script = front.collider.gameObject.GetComponent <ShamblerZombie>();
if (script != null)
{
aSpeed = ZombieConstants.v / 2;
hitShambler = true;
}
//this code will check if the zombie is of type shambler.
ClassicZombie classicScript = front.collider.gameObject.GetComponent <ClassicZombie>();
if (classicScript != null)
{
aSpeed = classicScript.aSpeed;
hitShambler = true;
}
}
}
//here the speed is returned to normal as soon as the raycast stops hitting a shambler
if (hitShambler == false)
{
aSpeed = ZombieConstants.v;
}
}
void spawnZombies()
{
hardZombies = (int)(n * r / (1 + r));
int[] dir = new int[3];
//iterate to spawn n zombies
for (int i = 0; i < n; i++)
{
//starting and ending waypoints on lane
int startingWpt = 0;
int endWpt = 0;
//choose random lane
int lane = Random.Range(0, 3);
//set direction
if (dir[lane] == 0)
{
dir[lane] = Random.Range(1, 3);
}
startingWpt = Random.Range(0, 4); //choose random starting point
if (dir[lane] == 1)
{
//left direction in lane
//make sure no zombie spawns in survivor area at first
startingWpt = Random.Range(0, 4);
while (startingWpt == 1)
{
startingWpt = Random.Range(0, 4);
}
switch (startingWpt)
{
case 0:
endWpt = 3;
break;
case 1:
endWpt = 0;
break;
case 2:
endWpt = 1;
break;
case 3:
endWpt = 2;
break;
}
}
else if (dir[lane] == 2)
{
//right direction in lane
//make sure no zombie spawns in survivor area at first
startingWpt = Random.Range(0, 4);
while (startingWpt == 0)
{
startingWpt = Random.Range(0, 4);
}
switch (startingWpt)
{
case 0:
endWpt = 1;
break;
case 1:
endWpt = 2;
break;
case 2:
endWpt = 3;
break;
case 3:
endWpt = 0;
break;
}
}
/*initialize zombies*/
Vector3 s = Vector3.zero;
Vector3 e = Vector3.zero;
switch (lane)
{
case 0:
s = innerPoints[startingWpt].position;
e = innerPoints[endWpt].position;;
break;
case 1:
s = middlePoints[startingWpt].position;
e = middlePoints[endWpt].position;;
break;
case 2:
s = outerPoints[startingWpt].position;
e = outerPoints[endWpt].position;;
break;
}
s = Vector3.Lerp(s, e, Random.value);
//Check if there is a zombie already
if (Physics.CheckSphere(s, 0.49f))
{
i--;
continue;
}
if (i < hardZombies)
{
//spawn a hard zombie
if (Random.value > 0.5f)
{
//modern
ModernZombie z = (ModernZombie)Instantiate(modernPrefab) as ModernZombie;
z.Initialize(s, e, startingWpt, endWpt, lane, v * 2.0f); //speed = 2v
zombies.Add(z);
z.transform.position = s;
z.isEasy = false;
z.transform.tag = "Zombie";
z.name = "ModernZombie";
}
else
{
//phone
PhoneZombie z = (PhoneZombie)Instantiate(phonePrefab) as PhoneZombie;
z.Initialize(s, e, startingWpt, endWpt, lane, v * 2.0f); //speed = 2v
zombies.Add(z);
z.transform.position = s;
z.isEasy = false;
z.transform.tag = "Zombie";
z.name = "PhoneZombie";
}
}
else
{
//spawn easy
if (Random.value > 0.5f)
{
//classic zombie instanciation
ClassicZombie z = (ClassicZombie)Instantiate(classicPrefab) as ClassicZombie;
z.Initialize(s, e, startingWpt, endWpt, lane, v);
zombies.Add(z);
z.transform.position = s;
z.isEasy = true;
z.transform.tag = "Zombie";
z.name = "ClassicZombie";
}
else
{
//shambler
ShamblerZombie z = (ShamblerZombie)Instantiate(shamblerPrefab) as ShamblerZombie;
z.Initialize(s, e, startingWpt, endWpt, lane, v / 2.0f); //speed = v/2
zombies.Add(z);
z.transform.position = s;
z.isEasy = true;
z.transform.tag = "Zombie";
z.name = "ShamblerZombie";
}
}
}
}
public void spawnOneZombie(bool easy, bool clockwiseDirection)
{
int nextWpt = 0;
int wptI = 0;
int lane = 0;
Vector3 spawnPos = Vector3.zero;
Vector3 endWpt = Vector3.zero;
//find random unnocopied corner to spawn on
try {
do
{
wptI = Random.Range(0, 4);
lane = Random.Range(0, 3);
switch (lane)
{
case 0:
spawnPos = innerPoints [wptI].position;
break;
case 1:
spawnPos = middlePoints [wptI].position;
break;
case 2:
spawnPos = outerPoints [wptI].position;
break;
}
} while(Physics.CheckSphere(spawnPos, 0.49f));
} catch (System.Exception ex) {
Debug.Log(ex);
}
//choose random direction
if (!clockwiseDirection)
{
//counter clockwise
nextWpt = (wptI + 3) % 4;
}
else
{
//clockwise
nextWpt = (wptI + 1) % 4;
}
if (lane == 0)
{
endWpt = innerPoints [nextWpt].position;
}
else if (lane == 1)
{
endWpt = middlePoints [nextWpt].position;
}
else
{
endWpt = outerPoints[nextWpt].position;
}
if (!easy)
{
//spawn a hard zombie
if (Random.value > 0.5f)
{
//modern
ModernZombie z = (ModernZombie)Instantiate(modernPrefab) as ModernZombie;
z.Initialize(spawnPos, endWpt, wptI, nextWpt, lane, v * 2.0f); //speed = 2v
zombies.Add(z);
z.transform.position = spawnPos;
z.isEasy = false;
z.transform.tag = "Zombie";
z.name = "ModernZombie";
}
else
{
//phone
PhoneZombie z = (PhoneZombie)Instantiate(phonePrefab) as PhoneZombie;
z.Initialize(spawnPos, endWpt, wptI, nextWpt, lane, v * 2.0f); //speed = 2v
zombies.Add(z);
z.transform.position = spawnPos;
z.isEasy = false;
z.transform.tag = "Zombie";
z.name = "PhoneZombie";
}
}
else
{
//spawn easy
if (Random.value > 0.5f)
{
//classic zombie instanciation
ClassicZombie z = (ClassicZombie)Instantiate(classicPrefab) as ClassicZombie;
z.Initialize(spawnPos, endWpt, wptI, nextWpt, lane, v);
zombies.Add(z);
z.transform.position = spawnPos;
z.isEasy = true;
z.transform.tag = "Zombie";
z.name = "ClassicZombie";
}
else
{
//shambler
ShamblerZombie z = (ShamblerZombie)Instantiate(shamblerPrefab) as ShamblerZombie;
z.Initialize(spawnPos, endWpt, wptI, nextWpt, lane, v / 2.0f); //speed = v/2
zombies.Add(z);
z.transform.position = spawnPos;
z.isEasy = true;
z.transform.tag = "Zombie";
z.name = "ShamblerZombie";
}
}
}
/*
* This method will raycast to both back and front. If the front raycast is hit, it will first slow down to the front zombie's speed.
* Then it will try to change lanes. We slow down so that if we cannot change lanes, it will not collide with the front zombie!
* If the back raycast is hit, it will just try to change lanes without changing speed.
*/
void AvoidZombieCollision()
{
bool hitFrontZombie = false;
//these lines of code will shoot the raycast, and then will try to change lanes if raycast hits.
RaycastHit front;
Ray frontRay = new Ray(transform.position + transform.forward * .5f + transform.up * .5f, transform.forward);
Debug.DrawRay(transform.position + transform.forward * .5f + transform.up * .5f, transform.forward, Color.green);
//change speeds and change lanes according to the zombie raycast hits.
if (Physics.Raycast(frontRay, out front, 2))
{
if (front.collider.gameObject.tag == "Zombie")
{
//this code will check if the zombie is of type shambler.
ShamblerZombie shamblerScript = front.collider.gameObject.GetComponent <ShamblerZombie>();
if (shamblerScript != null)
{
aSpeed = ZombieConstants.v / 2; //change speed to v/2, since shambler has only 1 speed
hitFrontZombie = true;
RandomlyChangeLanes();
}
ModernZombie modernScript = front.collider.gameObject.GetComponent <ModernZombie>();
if (modernScript != null)
{
aSpeed = modernScript.aSpeed;
hitFrontZombie = true;
RandomlyChangeLanes();
//Debug.Log ("BADD");
}
ClassicZombie classicScript = front.collider.gameObject.GetComponent <ClassicZombie>();
if (classicScript != null)
{
aSpeed = classicScript.aSpeed;
hitFrontZombie = true;
RandomlyChangeLanes();
}
}
}
//if back raycast hits, just try to change lanes (not speed)
RaycastHit back;
Ray backRay = new Ray(transform.position + -transform.forward * .5f + transform.up * .5f, -transform.forward);
//Debug.DrawRay(transform.position + transform.forward * .5f + transform.up * .5f , transform.forward, Color.green);
if (Physics.Raycast(backRay, out back, 2))
{
if (back.collider.gameObject.tag == "Zombie")
{
RandomlyChangeLanes();
}
}
//if there is nothing in front of the zombie, resume normal max speed.
if (!hitFrontZombie)
{
aSpeed = ZombieConstants.v * 2;
}
}
//this will spawn a zombie at the opposite corner. the lane will be random
public void TrySpawn(string corner)
{
//first instantiate a zombie based on p
string zombieType = "none"; //a bullshit way of telling which zombie is instantiated, coz unity is dumb.
string lane = "none";
string dir = "none";
GameObject zombieSpawn;
int rand = Random.Range(0, 100);
PhoneZombie phone = null;
ModernZombie modern = null;
ClassicZombie classic = null;
ShamblerZombie shambler = null;
DetectSurvivor detect = null;
if (rand < hardRatio) //instantiate a hard zombie (50 % a phone zombie)
{
int isPhone = Random.Range(0, 2);
if (isPhone == 1) //create a phone zombie
{
zombieSpawn = Instantiate(phonePrefab) as GameObject;
zombieType = "phone";
phone = zombieSpawn.GetComponent <PhoneZombie>();
}
else //create a modern zombie
{
zombieSpawn = Instantiate(modernPrefab) as GameObject;
zombieType = "modern";
modern = zombieSpawn.GetComponent <ModernZombie>();
}
}
else //create easy zombie (50% prob for each)
{
int isClassic = Random.Range(0, 2);
if (isClassic == 1) //create a classic zombie
{
zombieSpawn = Instantiate(classicPrefab) as GameObject;
zombieType = "classic";
classic = zombieSpawn.GetComponent <ClassicZombie>();
}
else //create a shambler
{
zombieSpawn = Instantiate(shamblerPrefab) as GameObject;
zombieType = "shambler";
shambler = zombieSpawn.GetComponent <ShamblerZombie>();
}
}
int off = Random.Range(0, 3); //the offset, always going IN TO OUT!!
//this if chain will determine the lane that the zombie will be spawned in
if (off == 0)
{
lane = "in";
}
else if (off == 1)
{
lane = "mid";
}
else if (off == 2)
{
lane = "out";
}
switch (corner)
{
case "tl": //instantiate in bottom right (since opposite of tl), facing west.
dir = "W";
zombieSpawn.transform.Rotate(new Vector3(0, 1, 0), -90); //rotate so zombie is looking right way
switch (lane)
{
case "in":
zombieSpawn.transform.position = new Vector3(31.5f, 0, 3.5f);
break;
case "mid":
zombieSpawn.transform.position = new Vector3(32.5f, 0, 2.5f);
break;
case "out":
zombieSpawn.transform.position = new Vector3(33.5f, 0, 1.5f);
break;
}
break;
case "bl": //so spawn top right, facing down
dir = "S";
zombieSpawn.transform.Rotate(new Vector3(0, 1, 0), 180); //rotate so zombie is looking right way
switch (lane)
{
case "in":
zombieSpawn.transform.position = new Vector3(31.5f, 0, 17.5f);
break;
case "mid":
zombieSpawn.transform.position = new Vector3(32.5f, 0, 18.5f);
break;
case "out":
zombieSpawn.transform.position = new Vector3(33.5f, 0, 19.5f);
break;
}
break;
case "br": //instantiate in top left (since opposite to br), facing east.
//Debug.Log ("br hit!");
dir = "E";
zombieSpawn.transform.Rotate(new Vector3(0, 1, 0), 90); //rotate so zombie is looking right way
switch (lane)
{
case "in":
zombieSpawn.transform.position = new Vector3(5.5f, 0, 17.5f);
break;
case "mid":
zombieSpawn.transform.position = new Vector3(4.5f, 0, 18.5f);
break;
case "out":
zombieSpawn.transform.position = new Vector3(3.5f, 0, 19.5f);
break;
}
break;
case "tr": //instantiate in bottom left facing up.
dir = "N";
//NO ROTATE YAY!!
switch (lane)
{
case "in":
zombieSpawn.transform.position = new Vector3(5.5f, 0, 3.5f);
break;
case "mid":
zombieSpawn.transform.position = new Vector3(4.5f, 0, 2.5f);
break;
case "out":
zombieSpawn.transform.position = new Vector3(3.5f, 0, 1.5f);
break;
}
break;
}
//now set the lane of the zombie.
switch (zombieType)
{
case "classic":
switch (lane)
{
case "in":
classic.aLane = ClassicZombie.lane.inside;
break;
case "mid":
classic.aLane = ClassicZombie.lane.middle;
break;
case "out":
classic.aLane = ClassicZombie.lane.outside;
break;
}
if (dir == "N")
{
classic.dir = ClassicZombie.direction.N;
}
else if (dir == "E")
{
classic.dir = ClassicZombie.direction.E;
}
else if (dir == "S")
{
classic.dir = ClassicZombie.direction.S;
}
else if (dir == "W")
{
classic.dir = ClassicZombie.direction.W;
}
break;
case "shambler":
switch (lane)
{
case "in":
shambler.aLane = ShamblerZombie.lane.inside;
break;
case "mid":
shambler.aLane = ShamblerZombie.lane.middle;
break;
case "out":
shambler.aLane = ShamblerZombie.lane.outside;
break;
}
if (dir == "N")
{
shambler.dir = ShamblerZombie.direction.N;
}
else if (dir == "E")
{
shambler.dir = ShamblerZombie.direction.E;
}
else if (dir == "S")
{
shambler.dir = ShamblerZombie.direction.S;
}
else if (dir == "W")
{
shambler.dir = ShamblerZombie.direction.W;
}
break;
case "modern":
switch (lane)
{
case "in":
modern.aLane = ModernZombie.lane.inside;
break;
case "mid":
modern.aLane = ModernZombie.lane.middle;
break;
case "out":
modern.aLane = ModernZombie.lane.outside;
break;
}
if (dir == "N")
{
modern.dir = ModernZombie.direction.N;
}
else if (dir == "E")
{
modern.dir = ModernZombie.direction.E;
}
else if (dir == "S")
{
modern.dir = ModernZombie.direction.S;
}
else if (dir == "W")
{
modern.dir = ModernZombie.direction.W;
}
break;
case "phone":
switch (lane)
{
case "in":
phone.aLane = PhoneZombie.lane.inside;
break;
case "mid":
phone.aLane = PhoneZombie.lane.middle;
break;
case "out":
phone.aLane = PhoneZombie.lane.outside;
break;
}
if (dir == "N")
{
phone.dir = PhoneZombie.direction.N;
}
else if (dir == "E")
{
phone.dir = PhoneZombie.direction.E;
}
else if (dir == "S")
{
phone.dir = PhoneZombie.direction.S;
}
else if (dir == "W")
{
phone.dir = PhoneZombie.direction.W;
}
break;
}
zombieSpawn.transform.parent = GameObject.Find("GeneratedZombies").transform; //put this in a gameobject so its neat
detect = Instantiate(detectPrefab) as DetectSurvivor;
detect.zombieTransform = zombieSpawn.transform;
detect.transform.parent = GameObject.Find("Detectors").transform;
}
/* this method will populate the map with n zombies of either shamblers or classics. The zombies will face clockwise*/
void ZombieInitialize(int n) //don't make over 21!!
{
int isClassic; // this int will be randomly picked inside the loop. If 1, the zombie to init is a classic, other wise is a shambler.
//init only on top and bottom. If i%3 = 2, outside, if = 1, mid, if 0, inside.
//i/3 will correspond to the column. column will start at x = 6.5. Increment this by 3.
//top z = 19.5, mid = 18.5, inner = 17.5
for (int i = 0; i < n; i++)
{
//determine x, z positions first
bool outside = false, mid = false, inside = false;
//find lane or z component
float x;
float z;
switch (i % 3)
{
case 2:
outside = true;
z = 19.5f;
break;
case 1:
mid = true;
z = 18.5f;
break;
case 0:
inside = true;
z = 17.5f;
break;
default:
z = -1000;
Debug.Log("you ducked up");
break;
}
//find x component
x = 3 * (i / 3) + 6.5f;
isClassic = Random.Range(0, 2);
if (isClassic == 0) //instatiate shambler
{
ShamblerZombie s = Instantiate(shamblerPrefab);
s.dir = ShamblerZombie.direction.E; //face east;
s.gameObject.transform.position = new Vector3(x, 0, z);
s.transform.Rotate(new Vector3(0, 1, 0), 90); //rotate so zombie is looking right way
if (outside)
{
s.aLane = ShamblerZombie.lane.outside;
}
else if (mid)
{
s.aLane = ShamblerZombie.lane.middle;
}
else if (inside)
{
s.aLane = ShamblerZombie.lane.inside;
}
s.transform.parent = GameObject.Find("GeneratedZombies").transform;
DetectSurvivor detect = Instantiate(detectPrefab) as DetectSurvivor;
detect.zombieTransform = s.transform;
detect.transform.parent = GameObject.Find("Detectors").transform;
}
else //classic
{
ClassicZombie classic = Instantiate(classicPrefab);
classic.dir = ClassicZombie.direction.E; //face east;
classic.gameObject.transform.position = new Vector3(x, 0, z);
classic.transform.Rotate(new Vector3(0, 1, 0), 90); //rotate so zombie is looking right way
if (outside)
{
classic.aLane = ClassicZombie.lane.outside;
}
else if (mid)
{
classic.aLane = ClassicZombie.lane.middle;
}
else if (inside)
{
classic.aLane = ClassicZombie.lane.inside;
}
classic.transform.parent = GameObject.Find("GeneratedZombies").transform;
DetectSurvivor detect = Instantiate(detectPrefab) as DetectSurvivor;
detect.zombieTransform = classic.transform;
detect.transform.parent = GameObject.Find("Detectors").transform;
}
}
}
void AvoidZombieCollision()
{
bool hitFrontZombie = false;
//these lines of code will shoot the raycast, and then will try to change lanes if raycast hits.
RaycastHit front;
Ray frontRay = new Ray(transform.position + transform.forward * .5f + transform.up * .5f, transform.forward);
Debug.DrawRay(transform.position + transform.forward * .5f + transform.up * .5f, transform.forward, Color.green);
//change speeds and change lanes according to the zombie raycast hits.
if (Physics.Raycast(frontRay, out front, 2))
{
if (front.collider.gameObject.tag == "Zombie")
{
//this code will check if the zombie is of type shambler.
ShamblerZombie shamblerScript = front.collider.gameObject.GetComponent <ShamblerZombie>();
if (shamblerScript != null)
{
aSpeed = ZombieConstants.v / 2; //change speed to v/2, since shambler has only 1 speed
hitFrontZombie = true;
RandomlyChangeLanes();
}
ModernZombie modernScript = front.collider.gameObject.GetComponent <ModernZombie>();
if (modernScript != null)
{
aSpeed = modernScript.aSpeed;
hitFrontZombie = true;
RandomlyChangeLanes();
}
ClassicZombie classicScript = front.collider.gameObject.GetComponent <ClassicZombie>();
if (classicScript != null)
{
aSpeed = classicScript.aSpeed;
hitFrontZombie = true;
RandomlyChangeLanes();
}
}
}
//if back raycast hits, just try to change lanes (not speed)
RaycastHit back;
Ray backRay = new Ray(transform.position + -transform.forward * .5f + transform.up * .5f, -transform.forward);
//Debug.DrawRay(transform.position + -transform.forward * .5f + transform.up * .5f , -transform.forward, Color.green);
if (Physics.Raycast(backRay, out back, 3))
{
if (back.collider.gameObject.tag == "Zombie")
{
//this code will check if the zombie is of type shambler.
ShamblerZombie shamblerScript = back.collider.gameObject.GetComponent <ShamblerZombie>();
if (shamblerScript != null)
{
aSpeed = ZombieConstants.v / 2; //change speed to v/2, since shambler has only 1 speed
dir = (direction)System.Enum.Parse(typeof(direction), shamblerScript.dir.ToString());
//transform.rotation = back.transform.rotation;
hitFrontZombie = true;
RandomlyChangeLanes();
}
ModernZombie modernScript = back.collider.gameObject.GetComponent <ModernZombie>();
if (modernScript != null)
{
aSpeed = modernScript.aSpeed;
dir = (direction)System.Enum.Parse(typeof(direction), modernScript.dir.ToString());
//transform.rotation = back.transform.rotation;
hitFrontZombie = true;
RandomlyChangeLanes();
//Debug.Log ("BADD");
}
ClassicZombie classicScript = back.collider.gameObject.GetComponent <ClassicZombie>();
if (classicScript != null)
{
//Debug.Log ("hit by classic");
aSpeed = classicScript.aSpeed;
//dir = (direction) System.Enum.Parse(typeof(direction), classicScript.dir.ToString());
//transform.rotation = front.transform.rotation;
hitFrontZombie = true;
RandomlyChangeLanes();
}
PhoneZombie phoneScript = back.collider.gameObject.GetComponent <PhoneZombie>();
if (phoneScript != null)
{
//Debug.Log ("BOOM");
aSpeed = phoneScript.aSpeed;
//dir = (direction) System.Enum.Parse(typeof(direction), phoneScript.dir.ToString());
//transform.rotation = back.transform.rotation;
hitFrontZombie = true;
RandomlyChangeLanes();
}
}
}
}
