TypedPass.ixx File

State-filtered pass implementation for game loop phases. More...

Included Headers

#include <type_traits> #include <utility> #include <helios.engine.runtime.world.Session> #include <helios.engine.runtime.world.UpdateContext> #include <helios.engine.runtime.world.SystemRegistry> #include <helios.engine.runtime.gameloop:Pass> #include <helios.engine.runtime.enginestate.types>

Namespaces Index

namespace	helios
namespace	engine
namespace	runtime
namespace	gameloop

Classes Index

class	TypedPass<StateType>
	State-filtered pass that only executes in specific states. More...

Description

State-filtered pass implementation for game loop phases.

File Listing

The file content with the documentation metadata removed is:

1

5module;

6

7#include <type_traits>

8#include <utility>

9

10export module helios.engine.runtime.gameloop:TypedPass;

11

12import :CommitPoint;

13import :Pass;

14

15import helios.engine.runtime.world.SystemRegistry;

16

17import helios.engine.runtime.world.UpdateContext;

18import helios.engine.runtime.world.Session;

19

20import helios.engine.runtime.enginestate.types;

21

22export namespace helios::engine::runtime::gameloop {

23

24 class Phase;

25

54 template<typename StateType>

55 class TypedPass : public Pass {

56

57 friend class helios::engine::runtime::gameloop::Phase;

58

62 Phase& owner_;

63

67 StateType mask_;

68

74 void update(helios::engine::runtime::world::UpdateContext& updateContext) override {

75 for (auto& sys : systemRegistry_.items()) {

76 sys->update(updateContext);

77 }

78 }

79

80

86 void init(helios::engine::runtime::world::GameWorld& gameWorld) override {

87

88 }

89

90

94 CommitPoint commitPoint_ = CommitPoint::None;

95

96

97

98 public:

99

107 explicit TypedPass(Phase& owner, const StateType mask, helios::engine::runtime::world::GameWorld& gameWorld) : owner_(owner), mask_(mask), Pass(gameWorld) {}

108

109

137 Phase& addCommitPoint(const CommitPoint commitPoint = CommitPoint::PassEvents) override {

138 commitPoint_ = commitPoint;

139 return owner_;

140 }

141

142

154 [[nodiscard]] CommitPoint commitPoint() const noexcept override {

155 return commitPoint_;

156 }

157

169 [[nodiscard]] bool shouldRun(helios::engine::runtime::world::UpdateContext& updateContext) const noexcept override {

170 auto state = updateContext.session().state<StateType>();

171 return hasFlag(mask_, state);

172 }

173

182 bool hasFlag(StateType mask, StateType value) const noexcept {

183 using U = std::underlying_type_t<StateType>;

184 return (static_cast<U>(mask) & static_cast<U>(value)) != 0;

185 }

186

187

188 };

189

190}

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