bool test(entity const & e) const
{
// variadic logical OR
return concept_or(
(e.id() == IDList)...
);
}
bool test(entity const & e) const
{
if (!e || !e.has<position>()) return false;
return e.get<position>() == m_pos
&& m_ent.id() != e.id()
&& (!DoColl || (e.has(collides_) && e(collides_, m_ent)));
}
EntityAtPosImpl(entity const & e)
{
if (Times != -1) {
REQUIRE_CONCEPT(e, EntityHas<position, direction>);
m_pos = move(
e.get<position>()
, turn_left(e.get<direction>(), static_cast<unsigned>(Times))
, 1
);
} else {
REQUIRE_CONCEPT(e, EntityHas<position>);
m_pos = e.get<position>();
}
m_ent = entity(e.id(), m_pos);
}
bool draw_entity_at(sf::RenderWindow & to, entity const & e, position at)
{
// Don't draw if the entity is dead
if (!e) return false;
tile_id tid;
if (e.has<tile_id>()) {
tid = e.get<tile_id>();
}
else {
tid = static_cast<tile_id>(e.id());
}
if (e.has<direction>()){
tid = directional_tile_id(tid, e.get<direction>());
}
draw_tile_at(to, tid, at);
return true;
}
bool test(entity const & e) const
{
return concept_and(
Querys(e.id())...
);
}
bool test(entity const & e) const
{
return concept_and(
(e.id() != Ids)...
);
}
bool test(entity const & e) const
{
return concept_or(
(e.id() == Ids)...
);
}
bool test(entity const & e) const
{
return same_position(e, m_ent) && e.id() == ID;
}
OnEntity(entity const & e)
{
m_ent = entity(e.id(), e.get<position>());
}
bool test(entity const & e) const
{
return e.id() == m_id;
}
bool test(entity const & e) const
{
return !concept_or(
Querys(e.id())...
);
}
bool at_location(entity_locator loc, entity const & e)
{
return e
&& e.id() == loc.id
&& e.get<position>() == loc.pos;
}
