// https://forum.unity.com/threads/clean-est-way-to-find-nearest-object-of-many-c.44315/
ObjRing FindClosestTarget(bool inital = false, float distanceLimit = 4F)
{
ObjRing bestTarget = null;
float closestDistanceSqr = Mathf.Infinity;
foreach (ObjRing target in GameObject.FindObjectsOfType <ObjRing>())
{
ObjRing potentialTarget = target;
if (!potentialTarget.gameObject.activeSelf)
{
continue;
}
if (!target.enabled)
{
continue;
}
if (target.collected)
{
continue;
}
if (target.falling)
{
continue;
}
float angleDiff = Mathf.Abs(Mathf.DeltaAngle(
character.position.AngleTowards(potentialTarget.transform.position),
character.forwardAngle
));
if ((angleDiff > 45) && (angleDiff < 135))
{
continue;
}
else if (inital)
{
if ((angleDiff > 45) && character.facingRight)
{
continue;
}
else if ((angleDiff < 135) && !character.facingRight)
{
continue;
}
}
Vector3 directionToTarget = potentialTarget.transform.position - character.position;
float dSqrToTarget = directionToTarget.sqrMagnitude;
if (!(dSqrToTarget < closestDistanceSqr))
{
continue;
}
closestDistanceSqr = dSqrToTarget;
bestTarget = potentialTarget;
}
if (closestDistanceSqr > distanceLimit)
{
return(null);
}
return(bestTarget);
}
// Shamelessly taken line-for-line from https://info.sonicretro.org/SPG:Ring_Loss
public static void ExplodeRings(Vector2 origin, int count)
{
count = Mathf.Min(count, 256);
float angle = 101.25F + 90F; // assuming 0=right, 90=up, 180=left, 270=down
bool flipHSpeed = false;
float speed = 0F;
for (int t = 0; t < count; t++)
{
if (t % 16 == 0)
{
switch (speed)
{
case 0F:
speed = 4F;
break;
case 4F:
speed = 2F;
break;
case 2F:
speed = 6F;
break;
default:
speed += 2F;
break;
}
angle = 101.25F + 90F; // and reset the angle
}
// create a bouncing ring object
ObjRing ring = Instantiate(
Constants.Get <GameObject>("prefabRing"),
origin,
Quaternion.identity
).GetComponent <ObjRing>();
ring.InitReferences();
ring.falling = true;
// set the ring's vertical speed to sine(angle)*speed
// set the ring's horizontal speed to -cosine(angle)*speed
ring.initialVelocity = new Vector2(
Mathf.Sin(angle * Mathf.Deg2Rad) * speed,
-Mathf.Cos(angle * Mathf.Deg2Rad) * speed
) * Utils.physicsScale;
if (flipHSpeed)
{
// multiply the ring's horizontal speed by -1
ring.initialVelocity.x *= -1;
// increase angle by 22.5
angle += 22.5F;
}
flipHSpeed = !flipHSpeed; // if n is false, n becomes true and vice versa
}
}
// 3D-Ready: NO
public void Hurt(bool moveLeft = true, bool spikes = false)
{
if (isInvulnerable)
{
return;
}
if (shield != null)
{
SFX.Play(audioSource, "sfxHurt");
RemoveShield();
}
else if (rings == 0)
{
if (spikes)
{
SFX.Play(audioSource, "sfxDieSpikes");
}
else
{
SFX.Play(audioSource, "sfxDie");
}
stateCurrent = "dying";
return;
}
else
{
ObjRing.ExplodeRings(transform.position, Mathf.Min(rings, 32));
rings = 0;
SFX.Play(audioSource, "sfxHurtRings");
}
stateCurrent = "hurt";
velocity = new Vector3( // TODO: 3D
2 * (moveLeft ? -1 : 1) * physicsScale,
4 * physicsScale,
velocity.z
);
position += velocity / 30F; // HACK
}
public override void Update(float deltaTime)
{
if (character.stateCurrent != "lightDash")
{
if (!character.input.GetButtonDownPreventRepeat("Primary"))
{
return;
}
target = FindClosestTarget(true);
if (target != null)
{
character.stateCurrent = "lightDash";
}
return;
}
;
if ((target == null) || (target.collected))
{
target = FindClosestTarget();
if (target != null)
{
character.stateCurrent = "lightDash";
}
else
{
character.velocity = (character.position - positionPrev) * (60F * 0.75F);
if (character.velocity.magnitude > character.stats.Get("terminalSpeed"))
{
character.velocity = character.stats.Get("terminalSpeed") * character.velocity.normalized;
}
character.stateCurrent = "air";
character.AnimatorPlay("Fast");
}
}
else
{
positionPrev = character.position;
character.forwardAngle = character.position.AngleTowards(target.transform.position);
if (character.flipX)
{
character.forwardAngle += 180F;
}
Vector3 newPos = Vector3.MoveTowards(
character.position,
target.transform.position,
character.stats.Get("lightDashSpeed") * deltaTime * 2
);
newPos.z = character.position.z;
character.position = newPos;
character.spriteContainer.transform.eulerAngles = character.GetSpriteRotation(deltaTime);
failsafeTimer -= deltaTime;
if (failsafeTimer <= 0)
{
character.stateCurrent = "rollingAir";
}
}
}
