public void TestAbs()
{
Assert.Equal(FixPoint.Abs((FixPoint)(17)), (FixPoint)(17));
Assert.Equal(FixPoint.Abs((FixPoint)(-17)), (FixPoint)(17));
Assert.Equal(FixPoint.Abs((FixPoint)(0)), (FixPoint)(0));
Assert.Equal(FixPoint.Abs((FixPoint)(-0)), (FixPoint)(0));
Assert.Equal(FixPoint.Abs((FixPoint)(-1.5f)), (FixPoint)(1.5f));
Assert.Equal(FixPoint.Abs((FixPoint)(-int.MaxValue)), (FixPoint)(int.MaxValue));
Assert.Equal(FixPoint.Abs((FixPoint)(-140737488355327L)), (FixPoint)(140737488355327L));
}
public bool UpdateProjectile(FixPoint delta_time)
{
PositionComponent position_component = ParentObject.GetComponent(PositionComponent.ID) as PositionComponent;
if (m_track_mode == TrackModeLockTarget)
{
Entity target = null;
PositionComponent target_position_component = null;
if (m_param.m_target_entity_id > 0)
{
target = GetLogicWorld().GetEntityManager().GetObject(m_param.m_target_entity_id);
if (target != null && !ObjectUtil.IsDead(target))
{
target_position_component = target.GetComponent(PositionComponent.ID) as PositionComponent;
if (target_position_component != null)
{
m_param.m_target_position = target_position_component.CurrentPosition;
}
}
else
{
target = null;
}
}
if (m_trajectory_type == TrajectoryTypeBezier)
{
FixPoint t = (GetCurrentTime() - m_param.m_start_time) / m_param.m_life_time;
if (t < FixPoint.One)
{
FixPoint l_t = FixPoint.One - t;
Vector3FP new_position = l_t * l_t * m_param.m_start_position + FixPoint.Two * t * l_t * m_param.m_bezier_b + t * t * m_param.m_target_position;
position_component.CurrentPosition = new_position;
return(false);
}
else
{
position_component.CurrentPosition = m_param.m_target_position;
Explode(target);
return(true);
}
}
else
{
m_param.m_fixed_facing = m_param.m_target_position - position_component.CurrentPosition;
if (m_trajectory_type == TrajectoryTypeHorizontalLine)
{
m_param.m_fixed_facing.y = FixPoint.Zero;
}
FixPoint distance = m_param.m_fixed_facing.Normalize();
FixPoint delta_distance = m_speed * delta_time;
Vector3FP new_position = position_component.CurrentPosition + m_param.m_fixed_facing * delta_distance;
position_component.CurrentPosition = new_position;
distance = FixPoint.Abs(distance - delta_distance);
bool hit = false;
if (target_position_component != null)
{
if (distance <= position_component.Radius + target_position_component.Radius)
{
hit = true;
}
}
else
{
if (distance <= m_speed * LOGIC_UPDATE_INTERVAL)
{
hit = true;
}
}
if (hit)
{
Explode(target);
return(true);
}
return(false);
}
}
else
{
Vector3FP new_position = position_component.CurrentPosition + m_param.m_fixed_facing * (m_speed * delta_time);
position_component.CurrentPosition = new_position;
if (DetectCollision(position_component.GetSpacePartition(), new_position, position_component.Radius))
{
return(true);
}
GridGraph grid_graph = position_component.GetGridGraph();
if (grid_graph != null)
{
GridNode node = grid_graph.Position2Node(new_position);
if (node == null)
{
m_task.LockRemainTime(m_speed);
}
else if (!node.Walkable && !m_can_cross_obstacle)
{
if (m_previous_walkable)
{
m_task.LockRemainTime(m_speed);
}
}
else
{
m_previous_walkable = true;
}
}
return(false);
}
}