//function for collision with a projectile
void OnCollisionEnter(Collision coll)
{
GameObject otherColl = coll.gameObject;
if (otherColl.tag == "ProjectileHero" || otherColl.tag == "homing")
{
Projectile p = otherColl.GetComponent <Projectile>();
Destroy(otherColl);
ChangeColour(false, 50, -75, -75, false); //changes colour to show the damage
_colourChangeTime = Time.time;
if (_bound.onScreen)
{
if (otherColl.tag == "homing")
{
//missile collides many time with the enemy when it hits due to how it moves
//in order to deal with this it deals its damage during the next update (as this is after the spur of collisions)
//to the user this is not noticeable due to the speed of the frameRate
_healthDamageOnNextUpdate = Main_MainScene.GetWeaponDefinition(p.type).damage;
}
else
{
_health -= Main_MainScene.GetWeaponDefinition(p.type).damage; //update health
CheckHealth();
}
}
}
}
void Awake()
{
_weaponDictionary = new Dictionary <WeaponType, WeaponDefinition>(); //reset dictionary on awake
_allEnemiesList = new List <GameObject>(); //reset list of enemies on awake
if (scriptReference == null)
{
scriptReference = this; //sets up singleton so that only 1 main script can be created.
}
else
{
Debug.LogError("Attempted Creation of Second Main Script");
}
_boundM = GetComponent <BoundsCheck>(); //gets the bounds check component
Invoke("SpawnEnemy", 1f / enemySpawnRate); //this start the enemies spawning
//since this is a static reference it only needs to be set once when it is null and the data will remain - see PowerUp class for more detail
if (PowerUp.allPossibleColors == null)
{
PowerUp.allPossibleColors = new List <Color>();
}
//adds the weapon definitions into the dictionary so they can be easily looked up later
foreach (WeaponDefinition def in weaponDefn)
{
_weaponDictionary.Add(def.type, def); //adds the definition for the weapons into the dictionary for easy look up later
PowerUp.allPossibleColors.Add(def.color); //add colours to beused for random cube
}
}
//sets the powerup type depending on what WeaponDefinition / WeaponType is associated with it.
public void SetType(WeaponType wt, bool isRandCube = false)
{
WeaponDefinition def = Main_MainScene.GetWeaponDefinition(wt);
type = wt;
duration = def.duration;
if (isRandCube)
{
_randCurrentColourIndex = Random.Range(0, allPossibleColors.Count - 1);
_cubeRend.material.color = allPossibleColors[_randCurrentColourIndex];
letter.text = "?";
_randCube = true;
Invoke("ColorChange", 0.1f); //invokes function to change color
}
else
{
_cubeRend.material.color = def.color;
letter.text = def.letter;
}
}
public void SetType(WeaponType wt)
{
_type = wt;
if (type == WeaponType.none)
{
this.gameObject.SetActive(false); //hides the gun if the weapon is none
}
else
{
this.gameObject.SetActive(true); //show gun if there is a weapon enabled
}
GameObject rootGo = transform.root.gameObject;
if (rootGo.GetComponent <Hero_Script>() != null)
{
if (wt != WeaponType.plasmaThrower)
{
_plasmaThrowerParticles.enabled = false; //incase of switch while space is being held
rootGo.GetComponent <Hero_Script>().FireWeaponsDelegate = Fire; //assigning fire the the function delegate
rootGo.GetComponent <Hero_Script>().StopWeaponsFire = null; //when not using plasma thrower no need to stop weapons fire
}
else
{
rootGo.GetComponent <Hero_Script>().FireWeaponsDelegate = FirePlasmaThrower; //different fire function for flame thrower
rootGo.GetComponent <Hero_Script>().StopWeaponsFire = StopPlasmaThrower; //there is a function to be triggered when space bar is lifted
}
}
else if (rootGo.GetComponent <Enemy_3_Movement>() != null) //attach fire to enemy 3
{
rootGo.GetComponent <Enemy_3_Movement>().FireWeaponsDelegate = Fire;
}
else if (rootGo.GetComponent <Enemy_Boss_Movement>() != null) //attach multiple fire to boss
{
rootGo.GetComponent <Enemy_Boss_Movement>().FireWeaponsDelegate += Fire;
}
def = Main_MainScene.GetWeaponDefinition(_type);
lastShotTime = 0; //this means that weapon will be ready to fire right when it is switched to
}
protected virtual void Update()
{
Move(); //calls move which is defined in the child class
//destroy enemy if its off screen
if (_bound != null && (_bound.offScreenDown || _bound.offScreenLeft || _bound.offScreenRight))
{
Main_MainScene.scriptReference.DestroyEnemy(gameObject);
}
//deals damage if there is some to do on update
if (_healthDamageOnNextUpdate != 0)
{
_health -= _healthDamageOnNextUpdate;
_healthDamageOnNextUpdate = 0;
CheckHealth();
}
//this hanldes what happens when the enemy is on fire
if (_onFireTime != 0)
{
//determines if it is time to stop being on fire
if ((Time.time - _onFireTime) > _timeToRemainOnFire)
{
ChangeColour(true); //resets colour
_onFireTime = 0;
}
else
{
_health -= Main_MainScene.GetWeaponDefinition(WeaponType.plasmaThrower).damage *Time.deltaTime; //damage the enemy while it is on fire, damage is per second
CheckHealth();
//cycles the colour
if ((Time.time - _onFireColourLastChageTime) > 0.1f)
{
if (_higherColourFireCycleCounter)
{
ChangeColour(false, -15, 20, 20, true);
}
else
{
ChangeColour(false, 15, -20, -20, true);
}
_higherColourFireCycleCounter = !_higherColourFireCycleCounter;
_onFireColourLastChageTime = Time.time;
}
}
}
//this handles what happens when the enemy is on frozen
if (_frozenTime != 0)
{
//stop being frozen
if ((Time.time - _frozenTime) > _timeToRemainFrozen)
{
_frozenTime = 0;
_speedFactor = 1f;
ChangeColour(true);
}
else
{
_health -= Main_MainScene.GetWeaponDefinition(WeaponType.freezeGun).damage *Time.deltaTime; //damage the enemy while it is on fire, damage is per second
CheckHealth();
}
}
//resets colour after regular damage done
if (_colourChangeTime != 0 && (Time.time - _colourChangeTime) > _timeToRemainColourChange && _onFireTime == 0 && _frozenTime == 0)
{
ChangeColour(true);
_colourChangeTime = 0;
}
}
