public void Launch(TargetPoint target)
{
Vector3 launchPoint = mortar.position;
Vector3 targetPoint = target.Position;
targetPoint.y = 0f;
Vector2 dir;
dir.x = targetPoint.x - launchPoint.x;
dir.y = targetPoint.z - launchPoint.z;
float x = dir.magnitude;
float y = -launchPoint.y;
dir /= x;
float g = 9.81f;
float s = launchSpeed;
float s2 = s * s;
float r = s2 * s2 - g * (g * x * x + 2f * y * s2);
Debug.Assert(r >= 0f, "범위에 불충분 한 발사 속도!");
float tanTheta = (s2 + Mathf.Sqrt(r)) / (g * x);
float cosTheta = Mathf.Cos(Mathf.Atan(tanTheta));
float sinTheta = cosTheta * tanTheta;
mortar.localRotation = Quaternion.LookRotation(new Vector3(dir.x, tanTheta, dir.y));
//Vector3 prev = launchPoint, next;
//for (int i = 1; i <= 10; i++) {
// float t = i / 10f;
// float dx = s * cosTheta * t;
// float dy = s * sinTheta * t - 0.5f * g * t * t;
// next = launchPoint + new Vector3(dir.x * dx, dy, dir.y * dx);
// Debug.DrawLine(prev, next, Color.blue, 1f);
// prev = next;
//}
//Debug.DrawLine(launchPoint, targetPoint, Color.yellow, 1f);
//Debug.DrawLine(
// new Vector3(launchPoint.x, 0.01f, launchPoint.z),
// new Vector3(launchPoint.x + dir.x * x, 0.01f, launchPoint.z + dir.y * x),
// Color.white, 1f
//);
Game.SpawnShell().Initialize(
launchPoint, targetPoint,
new Vector3(s * cosTheta * dir.x, s * sinTheta, s * cosTheta * dir.y),
shellBlastRadius, shellDamage);
}
public void Initialize(Vector3 position, float blastRadius, float damage = 0f)
{
if (damage > 0f)
{
TargetPoint.FillBuffer(position, blastRadius);
for (int i = 0; i < TargetPoint.BufferedCount; i++)
{
TargetPoint.GetBuffered(i).Enemy.ApplyDamage(damage);
}
}
transform.localPosition = position;
scale = 2f * blastRadius;
}
protected bool TrackTarget(ref TargetPoint target)
{
if (target == null || !target.Enemy.IsValidTarget)
{
return(false);
}
Vector3 a = transform.localPosition;
Vector3 b = target.Position;
float x = a.x - b.x;
float z = a.z - b.z;
float r = targetingRange + 0.125f * target.Enemy.Scale;
if (x * x + z * z > r * r)
{
target = null;
return(false);
}
return(true);
}