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#pragma once
#include "h-basic.h"
#include "object_type_fwd.hpp"
#include <functional>
#include <initializer_list>
typedef std::function<bool (object_type const *)> object_filter_t;
namespace object_filter {
/**
* Is TVal equal to the given value?
*/
object_filter_t TVal(byte tval);
/**
* Is SVal equal to the given value?
*/
object_filter_t SVal(byte sval);
/**
* Has given bit mask in flag3 value.
*/
object_filter_t HasFlag3(u32b mask);
/**
* Has given bit mask in flag4 value.
*/
object_filter_t HasFlag4(u32b mask);
/**
* Has given bit mask in flag5 value.
*/
object_filter_t HasFlag5(u32b mask);
/**
* Is the object an artifact?
*/
object_filter_t IsArtifact();
/**
* Is the object an artifact as determined by artifact_p?
*/
object_filter_t IsArtifactP();
/**
* Is the object an ego item?
*/
object_filter_t IsEgo();
/**
* Is the object "known"?
*/
object_filter_t IsKnown();
/**
* True always accepts all items.
*/
object_filter_t True();
/**
* Invert an object filter.
*/
object_filter_t Not(object_filter_t p);
/**
* Logical conjunction (AND)
*/
object_filter_t And();
/**
* Logical conjunction (AND)
*/
template<typename Arg0, typename... Args> object_filter_t And(Arg0&& arg0, Args&&... args) {
auto argsFilter = And(args...);
return [=](object_type const *o_ptr) -> bool {
return arg0(o_ptr) && argsFilter(o_ptr);
};
}
/**
* Logical disjunction (OR)
*/
object_filter_t Or();
/**
* Logical disjunction (OR)
*/
template<typename Arg0, typename... Args> object_filter_t Or(Arg0&& arg0, Args&&... args) {
auto argsFilter = Or(args...);
return [=](object_type const *o_ptr) -> bool {
auto x = arg0(o_ptr) || argsFilter(o_ptr);
return x;
};
}
}
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