void OnCollisionEnter2D(Collision2D other)
{
//fishState = setFishState(FishMode.swim);
//direction = -direction;
if (!other.gameObject.CompareTag("pickup")) //check // other.gameObject.CompareTag ("fishBoundary")
{
startPosition = rb2d.position;
//print ("collision");
if (collisionTimer > 4f)
{
//print ("Stuck in corner");
fishState = setFishState(FishMode.stuck);
}
collisionTimer = 5f;
}
foreach (ContactPoint2D contact in other.contacts)
{
//collisionPosition2 = collisionPosition1;
collisionPosition1 = contact.point;
collisionNormal2 = collisionNormal1;
collisionNormal1 = contact.normal;
if (fishState != FishMode.escape && fishState != FishMode.escape2 && fishState != FishMode.stuck) //check
{
direction = collisionNormal1;
print("Fish is not stuck, or escaping");
}
Debug.DrawRay(contact.point, contact.normal, Color.magenta, 2f);
// Do something with normal here
}
}
// This function handles the transitions to make sure something only happens once.
public FishMode setFishState(FishMode newState)
{
switch (newState)
{
case FishMode.swim:
startPosition = rb2d.position;
direction = RandomVector2();
break;
case FishMode.swimDown:
startPosition = rb2d.position;
direction = DownVector2();
break;
case FishMode.escape:
startPosition = rb2d.position;
//rb2d.velocity = Vector2.zero;
direction = EscapeVector2();
//rb2d.AddForce (direction * escapeForce);
break;
case FishMode.escape2: // this is called when a fish has collided in the last 5 sends and puffin is pursuing
startPosition = rb2d.position;
//rb2d.velocity = Vector2.zero;
direction = EscapeVector2AndWall();
break;
case FishMode.stuck:
startPosition = rb2d.position;
direction = CornerEscape();
break;
case FishMode.still:
//rb2d.velocity = Vector2.zero;
break;
case FishMode.caught:
break;
default:
break;
}
//print ("The Fish's state is now " + newState + " Collision timer is " + collisionTimer);
return(newState);
}
// Update is called once per frame
void Update()
{
//Flip (); /.this is now handled in rotate
Rotate();
// check to see if puffin is close enough to Open his mouth, if so set bool true
if (!inPuffinRange && puffinToFish.sqrMagnitude < GameManager.instance.puffinToMouthRange * GameManager.instance.puffinToMouthRange)
{
// if the fish is in the range of the puffin, add one to the count // to make mouth open
GameManager.instance.fishCloseToPuffin = GameManager.instance.fishCloseToPuffin + 1;
//print (GameManager.instance.fishCloseToPuffin + " Fish in Range" + puffinToFish.sqrMagnitude + " is the closeness. Puffin to Fish is " + puffinToFish + " It is less than Closeness criteria " + GameManager.instance.puffinToMouthRange * GameManager.instance.puffinToMouthRange);
inPuffinRange = true;
}
if (inPuffinRange && puffinToFish.sqrMagnitude > GameManager.instance.puffinToMouthRange * GameManager.instance.puffinToMouthRange)
{
// if the fish moves out ofthe range of the puffin, subtract one from the count if count is greater than 0// to make mouth close
GameManager.instance.fishCloseToPuffin = GameManager.instance.fishCloseToPuffin > 0 ? GameManager.instance.fishCloseToPuffin - 1: GameManager.instance.fishCloseToPuffin;
//GameManager.instance.fishCloseToPuffin = GameManager.instance.fishCloseToPuffin - 1;
inPuffinRange = false;
}
//countdown timer in seconds. Greater than 0, counts down to o.
collisionTimer = collisionTimer > 0 ? collisionTimer - Time.deltaTime : 0f; //this countdowns from fish last hit something
if ((rb2d.position - collisionPosition1).sqrMagnitude > escapeZoneMax * escapeZoneMax) // checks if the fish is farther than the escape xone and if so, reset timer
{
collisionTimer = 0f;
}
if (puffin != null) // this is so there isn't issues when the puffin is destroyed sometimes
{
puffinToFish = (transform.position - puffin.transform.position);
}
else
{
puffinToFish = Vector2.one * Mathf.Infinity;
}
//distance from fish to puffin
puffinApproachAngle = Mathf.Atan2(puffinToFish.y, puffinToFish.x) * Mathf.Rad2Deg;
//if(puffinApproachAngle > 180
//Vector2.Angle(puffin.transform.position, transform.position);; //the angle between puffin and fish
//puffintoFishRelativeVelocityDir = Vector2.Angle (puffinrb2d.velocity, rb2d.velocity);// difference in direction from puffin to fish velocity
if (fishInWater && !fishInAir && fishState != FishMode.swim && fishState != FishMode.swimDown && puffinToFish.sqrMagnitude > flightZoneMax * flightZoneMax)
{
fishState = setFishState(FishMode.swim);
}
if (fishInAir && !fishInWater && fishState != FishMode.still)
{
fishState = setFishState(FishMode.still);
}
if (fishInAir && fishInWater && fishState != FishMode.swimDown)
{
fishState = setFishState(FishMode.swimDown);
//fishState = setFishState(FishMode.escape2);
}
//print (puffinToFish.magnitude);
if (puffinToFish.sqrMagnitude < flightZoneMax * flightZoneMax && fishState != FishMode.escape && fishInWater && fishState != FishMode.escape2 && fishState != FishMode.stuck)
{
if (collisionTimer != 0f) //&& (puffinApproachAngle > 15f || puffinApproachAngle < -15f)
{
fishState = setFishState(FishMode.escape2);
}
else
{
fishState = setFishState(FishMode.escape);
}
//print ("Set Escape");
//print (puffinApproachAngle);
}
switch (fishState)
{
case FishMode.swim:
rb2d.velocity = direction * swimSpeed;
if ((rb2d.position - startPosition).sqrMagnitude > 20 * 20)
{
//Move in new random direction
direction = RandomVector2();
startPosition = rb2d.position;
}
break;
case FishMode.swimDown:
rb2d.velocity = direction * swimSpeed;
if ((rb2d.position - startPosition).sqrMagnitude > 10 * 10)
{
fishState = setFishState(FishMode.swim);
}
break;
case FishMode.escape:
rb2d.velocity = direction * escapeSpeed;
//how to script if the puffin's approach changes too much, to change directions
//Vector2.
if (collisionTimer != 0f)
{
setFishState(FishMode.escape2);
}
else if (puffinApproachAngle > 30f || puffinApproachAngle < -30f) //change direction based on fish angle
{
//print (puffinApproachAngle);
direction = EscapeVector2();
}
//only changes if 5 seconds passed
{
//print (puffinApproachAngle);
}
//rb2d.AddForce (puffinToFish.normalized * escapeForce);
break;
case FishMode.escape2:
rb2d.velocity = direction * escapeSpeed; //*1.5f;
if (puffinApproachAngle > 30f || puffinApproachAngle < -30f)
{
direction = EscapeVector2AndWall();
}
break;
case FishMode.stuck:
rb2d.velocity = direction * escapeSpeed; // * 1.5f;
if (puffinApproachAngle > 45f || puffinApproachAngle < -45f)
{
direction = CornerEscape();
}
if ((rb2d.position - startPosition).sqrMagnitude > 10 * 10)
{
setFishState(FishMode.escape);
}
break;
case FishMode.still:
break;
case FishMode.caught:
break;
default:
break;
}
}
