1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
|
#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;
};
}
}
|