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entt.rb
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entt.rb
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class Entt < Formula
desc "Fast and reliable entity-component system and much more"
homepage "https://skypjack.github.io/entt/"
url "https://github.com/skypjack/entt/archive/refs/tags/v3.14.0.tar.gz"
sha256 "e31f6e95a30e2977a50449ef9a607a9ff40febe6f9da2a8144a183f8606f7719"
head "https://github.com/skypjack/entt.git"
option "with-docs", "Build the documentation with cmake and doxygen --with-graphviz"
depends_on "cmake" => :build if build.with? "docs"
depends_on "doxygen" => [:build, "with-graphviz"] if build.with? "docs"
def install
if build.with? "docs"
cd "build"
system "cmake", "..", "-DBUILD_TESTING=NO", "-DBUILD_DOCS=YES", *std_cmake_args
system "make"
system "make", "install"
else
include.install "src/entt"
end
end
test do
(testpath/"test.cpp").write <<~EOS
#include <entt/entt.hpp>
struct Position {
int x, y;
};
void moveSystem(entt::registry ®, Position shift) {
reg.view<Position>().each([shift](auto &pos) {
pos.x += shift.x;
pos.y += shift.y;
});
}
int main() {
entt::registry reg;
const auto entity = reg.create();
reg.assign<Position>(entity, 2, 6);
moveSystem(reg, {4, 4});
const Position expected = {6, 10};
const Position actual = reg.get<Position>(entity);
reg.destroy(entity);
return actual.x != expected.x || actual.y != expected.y;
}
EOS
system ENV.cxx, "-std=c++17", "test.cpp", "-o", "test"
system "./test"
end
end