public override bool InArea(ViVector3 pos, float range)
{
ViDebuger.AssertWarning(_dirLeftAngle <= _dirRightAngle);
float deltaX = pos.x - _center.x;
float deltaY = pos.y - _center.y;
float dir = ViMath2D.GetAngle(deltaX, deltaY);
return((ViMath2D.Length2(_center.x, _center.y, pos.x, pos.y) < (_radius2 + range * range)) && (_dirLeftAngle <= dir && dir < _dirRightAngle));
}
public override void Start(float duration)
{
ViDebuger.AssertWarning(Target);
if (Target == null)
{
Target = new ViSimpleProvider <ViVector3>();
}
_velocity = ViVector3.ZERO;
_duration = ViMathDefine.Max(0.01f, duration);
ViVector3 targetPos = Target.Value;
float distanceH = ViMath2D.Length(targetPos.x, targetPos.y, Translate.x, Translate.y);
float distanceV = targetPos.z - Translate.z;
float time = distanceV / m_GravityAcc / _duration;
float preDeltaTime = _duration * 0.5f + time;
float aftDeltaTime = _duration * 0.5f - time;
_velocity.z = preDeltaTime * m_GravityAcc;
}
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 void GetRotate(float angle, ref float x, ref float y)
{
ViMath2D.Rotate(ViMath2D.FRONT_X, ViMath2D.FRONT_Y, angle, ref x, ref y);
}
public static float GetDirection(float x, float y)
{
return(ViMath2D.GetRotateAngle(ViMath2D.FRONT_X, ViMath2D.FRONT_Y, x, y));
}
public override bool InArea(ViVector3 pos, float range)
{
return(ViMath2D.Length2(_center.x, _center.y, pos.x, pos.y) < (_radius2 + range * range));
}
public override bool InArea(ViVector3 pos)
{
return(ViMath2D.Length2(_center.x, _center.y, pos.x, pos.y) < _radius2);
}
public void Init(float front, float halfWidth)
{
_rotRect.Len = front;
_rotRect.HalfWidth = halfWidth;
_range = ViMath2D.Length(front, halfWidth);
}
