Pass.ixx File

Abstract base class for game loop passes. More...

Included Headers

#include <type_traits> #include <utility> #include <memory> #include <cassert> #include <helios.engine.runtime.world.UpdateContext> #include <helios.engine.runtime.world.concepts> #include <helios.engine.runtime.world.System> #include <helios.engine.runtime.enginestate.types> #include <helios.engine.runtime.world.SystemRegistry> #include <helios.engine.runtime.world.GameWorld> #include <helios.engine.runtime.gameloop:CommitPoint>

Namespaces Index

namespace	helios
namespace	engine
namespace	runtime
namespace	gameloop

Classes Index

class	Pass
	Abstract base class for game loop passes. More...

Description

Abstract base class for game loop passes.

File Listing

The file content with the documentation metadata removed is:

1

5module;

6

7#include <type_traits>

8#include <utility>

9#include <memory>

10#include <cassert>

11

12export module helios.engine.runtime.gameloop:Pass;

13

14import :CommitPoint;

15

16import helios.engine.runtime.world.GameWorld;

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

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

19import helios.engine.runtime.world.concepts;

20

21

22import helios.engine.runtime.world.UpdateContext;

23

24import helios.engine.runtime.enginestate.types;

25

26using namespace helios::engine::runtime::world;

27export namespace helios::engine::runtime::gameloop {

28

29 class Phase;

30

48 class Pass {

49

50 protected:

54 helios::engine::runtime::world::SystemRegistry systemRegistry_{};

55

62 GameWorld& gameWorld_;

63

64

65 public:

66 virtual ~Pass() = default;

67

74 explicit Pass(GameWorld& gameWorld) : gameWorld_(gameWorld) {};

75

81 virtual void update(helios::engine::runtime::world::UpdateContext& updateContext) = 0;

82

88 virtual void init(helios::engine::runtime::world::GameWorld& gameWorld) = 0;

89

97 virtual Phase& addCommitPoint(const CommitPoint commitPoint = CommitPoint::PassEvents) = 0;

98

104 virtual CommitPoint commitPoint() const noexcept = 0;

105

113 virtual bool shouldRun(helios::engine::runtime::world::UpdateContext& updateContext) const noexcept = 0;

114

129 template<typename T, typename... Args>

130 requires helios::engine::runtime::world::concepts::IsSystemLike<T>

131 Pass& addSystem(Args&&... args) {

132

133 T concreteSystem(std::forward<Args>(args)...);

134

135 void* bufferPtr = nullptr;

136 if constexpr (requires { typename T::CommandBuffer_type; }) {

137 using TCommandBuffer = typename T::CommandBuffer_type;

138 bufferPtr = gameWorld_.tryCommandBuffer<TCommandBuffer>();

139 assert(bufferPtr && "Command buffer not found for system's CommandBuffer_type");

140 }

141

142 systemRegistry_.template add<T>(

143 System(std::move(concreteSystem), bufferPtr)

144 );

145

146 return *this;

147 }

148 };

149

150}

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