public override void _Update(float deltaTime, ViVector3 target)
{
ViDebuger.AssertWarning(deltaTime > 0.0f);
ViDebuger.AssertWarning(_speed > 0.0f);
//
//
ViVector3 targetPos = Target.Value;
float distanceH = ViMath2D.Length(targetPos.x, targetPos.y, Translate.x, Translate.y);
float distanceV = targetPos.z - Translate.z;
float time = distanceH / _speed;
m_GravityAcc = -2.0f * (distanceV / (time * time) - _velocity.z / time);
m_GravityAcc = ViMathDefine.Clamp(m_GravityAcc, -GRAVITY, 5.0f * GRAVITY);
ViVector3 kDir = targetPos - Translate;
kDir.z = 0.0f;
kDir.Normalize();
_velocity.x = kDir.x * _speed;
_velocity.y = kDir.y * _speed;
_velocity.z -= m_GravityAcc * deltaTime;
_direction = _velocity;
_direction.Normalize();
}
public static float Angle(ViVector3 from, ViVector3 to)
{
return(ViMathDefine.Acos(ViMathDefine.Clamp(Dot(from.normalized, to.normalized), -1f, 1f)));
}