// Update is called every frame
public new void Update()
{
base.Update();
time += Time.deltaTime;
// Speed deterioration, destroy without any behavior if expires
if (deterioration * time >= 0.9)
{
time = 0;
ObjectPoolManager.SharedInstance.ReturnPooledObject(gameObject.name, gameObject);
}
if (curSpeed > 0)
{
rb.velocity = curSpeed * (1f - deterioration * time) * rb.transform.up;
}
else
{
rb.velocity = new Vector2(0, 0);
}
// Effect calls
if (time >= selfDestructTime && selfDestructTime > 0)
{
FragShell fs = gameObject.GetComponent <FragShell>();
Explosion expl = gameObject.GetComponent <Explosion>();
// Frag shell effect
if (fs != null)
{
fs.Fracture();
}
// Explosion effect
if (expl != null)
{
expl.Detonate();
}
// Generate hit effect (assuming explosion)
if (hitEffect != null)
{
ParticleSystem curHitEffect = Instantiate(hitEffect, this.transform.position, Quaternion.identity) as ParticleSystem;
var main = curHitEffect.main;
main.simulationSpeed = main.duration / hitEffectDuration;
float scale = hitEffectRadius / baseExplosionRadius;
curHitEffect.transform.localScale = new Vector3(scale, scale, scale);
curHitEffect.Play(true);
}
// Return shell to object pool
time = 0;
ObjectPoolManager.SharedInstance.ReturnPooledObject(gameObject.name, gameObject);
}
}
// Collision behavior
public void OnCollisionEnter2D(Collision2D collision)
{
// Check if the collision was with a viable target
foreach (string targetTag in targetTags)
{
if (collision.collider.tag == targetTag)
{
//TODO add hit effect
Destructible e = collision.collider.GetComponent <Destructible>();
// Hit behavior (allow first frame tolerance so bullet doesn't collide with shooter upon spawn)
if (e != null && time > 0)
{
// Effect calls
FragShell fs = gameObject.GetComponent <FragShell>();
Explosion expl = gameObject.GetComponent <Explosion>();
// Calculate effective defense [Effective defense = defense / cos(angle of contact)]
RaycastHit2D hit = Physics2D.Raycast(transform.position, transform.up, 5);
Vector3 normal = hit.normal;
float penCoeff = Mathf.Abs(Vector3.Cross(rb.velocity.normalized, normal).z);
// Debug penCoeff for "bullet traps"
if (penCoeff < 0.2f)
{
penCoeff = 1f - penCoeff;
}
if (float.IsNaN(penCoeff) || float.IsInfinity(penCoeff))
{
penCoeff = 1f;
}
float effectiveDefense = e.defense / penCoeff;
// Calculate effective damage [Damage = power * (1- det*time)^2 - Max (effective defense - penetration, 0)]
float damage = curPower * Mathf.Pow(1f - deterioration * time, 2f) - Mathf.Max(effectiveDefense - penetration, 0);
e.TakeDamage(damage);
// Determine penetration status
if (damage > 0)
{
// Frag shell effect
if (fs != null)
{
fs.Fracture();
}
// Explosion effect
if (expl != null)
{
expl.Detonate();
}
// Generate hit effect (assuming explosion)
if (hitEffect != null)
{
ParticleSystem curHitEffect = Instantiate(hitEffect, this.transform.position, Quaternion.identity) as ParticleSystem;
var main = curHitEffect.main;
main.simulationSpeed = main.duration / hitEffectDuration;
float scale = hitEffectRadius / baseExplosionRadius;
curHitEffect.transform.localScale = new Vector3(scale, scale, scale);
curHitEffect.Play(true);
}
// Return shell to object pool
time = 0;
ObjectPoolManager.SharedInstance.ReturnPooledObject(gameObject.name, gameObject);
}
// Non-penetration, reflect with energy loss.
else
{
time = time + (1f / deterioration - time) * penCoeff; // HAX
// Check to make sure velocity can be assigned (THIS IS SOLELY TO HOLD OFF VELOCITY BUG)
if (curSpeed > 0)
{
rb.velocity = Vector3.Reflect(curSpeed * (1f - deterioration * time) * rb.velocity.normalized, normal); //Need to fix as a error is causing NaN
}
else
{
rb.velocity = new Vector2(0, 0);
}
//Store new direction
Vector3 newDirection = Vector3.Reflect(transform.up, normal);
//Rotate bullet to new direction
newDirection = Quaternion.Euler(0, 0, -90) * newDirection;
Quaternion targetRotation = Quaternion.LookRotation(forward: Vector3.forward, upwards: newDirection);
transform.rotation = Quaternion.RotateTowards(transform.rotation, targetRotation, 100000);
break;
}
}
}
}
}
