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Queries also provide entity_id

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NukeBird 2025-02-20 00:17:11 +03:00
parent d1bafb4c46
commit 27cf20fac3
3 changed files with 8 additions and 12 deletions
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12
tests/zecsy.cpp
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@ -2,8 +2,8 @@
#define CATCH_CONFIG_MAIN #define CATCH_CONFIG_MAIN
#include <catch2/catch_all.hpp> #include <catch2/catch_all.hpp>
#include "../zecsy.hpp"
#include "../system_scheduler.hpp" #include "../system_scheduler.hpp"
#include "../zecsy.hpp"
using namespace zecsy; using namespace zecsy;
@ -193,7 +193,7 @@ TEST_CASE("Create a simple system that processes entities with a specific "
* Really wanna deduce it to w.query([](Component&){}), * Really wanna deduce it to w.query([](Component&){}),
* but I have some troubles with it * but I have some troubles with it
*/ */
w.query<Component>([](Component& c) { c.value++; }); w.query<Component>([](entity_id e, Component& c) { c.value++; });
REQUIRE(w.get<Component>(e0).value == 1); REQUIRE(w.get<Component>(e0).value == 1);
REQUIRE(w.get<Component>(e1).value == 21); REQUIRE(w.get<Component>(e1).value == 21);
@ -223,20 +223,16 @@ TEST_CASE("Test a systems ability to query and process only entities with a "
auto e2 = w.make_entity(); auto e2 = w.make_entity();
w.set(e2, C1{}); w.set(e2, C1{});
int count = 0;
REQUIRE(w.get<C0>(e0).value == 0); REQUIRE(w.get<C0>(e0).value == 0);
REQUIRE(w.get<C1>(e0).value == 10); REQUIRE(w.get<C1>(e0).value == 10);
w.query<C0, C1>([&count](C0& c0, C1& c1) w.query<C0, C1>([e0](entity_id e, C0& c0, C1& c1)
{ {
REQUIRE(e == e0);
c0.value++; c0.value++;
c1.value++; c1.value++;
count++;
}); });
REQUIRE(count == 1);
REQUIRE(w.get<C0>(e0).value == 1); REQUIRE(w.get<C0>(e0).value == 1);
REQUIRE(w.get<C1>(e0).value == 11); REQUIRE(w.get<C1>(e0).value == 11);

6
zecsy.hpp
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@ -63,7 +63,7 @@ namespace zecsy
void remove(entity_id e); void remove(entity_id e);
template<Component... T> template<Component... T>
void query(std::invocable<T&...> auto&& system); void query(std::invocable<entity_id, T&...> auto&& system);
private: private:
using comp_id = size_t; using comp_id = size_t;
@ -228,13 +228,13 @@ namespace zecsy
} }
template<Component... T> template<Component... T>
inline void world::query(std::invocable<T&...> auto&& system) inline void world::query(std::invocable<entity_id, T&...> auto&& system)
{ {
for(auto e: alive_entities) for(auto e: alive_entities)
{ {
if((has<T...>(e))) if((has<T...>(e)))
{ {
system(get<T>(e)...); system(e, get<T>(e)...);
} }
} }
} }