ComposeTransformSystem.ixx File

System for composing final transforms from separate state components. More...

Included Headers

#include <helios.engine.common.tags.SystemRole> #include <helios.math> #include <helios.engine.mechanics.lifecycle.components.Active> #include <helios.engine.runtime.world.UpdateContext> #include <helios.engine.runtime.world.GameWorld> #include <helios.engine.modules.effects.gfx.components.SpinComponent> #include <helios.engine.modules.spatial.transform.components.RotationStateComponent> #include <helios.engine.modules.spatial.transform.components.ComposeTransformComponent> #include <helios.engine.modules.spatial.transform.components.TranslationStateComponent>

Namespaces Index

namespace	helios
namespace	engine
	Main engine module aggregating core infrastructure and game systems. More...
namespace	modules
	Domain-specific components and systems. More...
namespace	spatial
namespace	transform
	Transform components and systems for spatial state management. More...
namespace	systems
	Transform composition systems. More...

Classes Index

class	ComposeTransformSystem
	System that composes the final ComposeTransformComponent from state components. More...

Description

System for composing final transforms from separate state components.

File Listing

The file content with the documentation metadata removed is:

1/**

2 * @file ComposeTransformSystem.ixx

3 * @brief System for composing final transforms from separate state components.

4 */

5module;

6

7

8

9export module helios.engine.modules.spatial.transform.systems.ComposeTransformSystem;

10

11

12

13import helios.engine.modules.spatial.transform.components.TranslationStateComponent;

14import helios.engine.modules.spatial.transform.components.RotationStateComponent;

15import helios.engine.modules.spatial.transform.components.ComposeTransformComponent;

16import helios.engine.modules.effects.gfx.components.SpinComponent;

17

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

19

20import helios.engine.runtime.world.UpdateContext;

21

22import helios.engine.mechanics.lifecycle.components.Active;

23

24import helios.math;

25

26import helios.engine.common.tags.SystemRole;

27

28export namespace helios::engine::modules::spatial::transform::systems {

29

30 /**

31 * @brief System that composes the final ComposeTransformComponent from state components.

32 *

33 * @details

34 * This system takes the raw state from TranslationStateComponent and

35 * RotationStateComponent and applies it to the ComposeTransformComponent.

36 * It combines heading and spin rotations into a single rotation matrix

37 * and updates the local translation.

38 */

39 class ComposeTransformSystem {

40

41 public:

42

43 using EngineRoleTag = helios::engine::common::tags::SystemRole;

44

45 /**

46 * @brief Updates TransformComponents based on state components.

47 *

48 * @param updateContext Context containing frame timing and game state.

49 */

50 void update(helios::engine::runtime::world::UpdateContext& updateContext) noexcept {

51

52 const float deltaTime = updateContext.deltaTime();

53

54 for (auto [entity, tc, tsc, active] : updateContext.view<

55 helios::engine::modules::spatial::transform::components::ComposeTransformComponent,

56 helios::engine::modules::spatial::transform::components::TranslationStateComponent,

57 helios::engine::mechanics::lifecycle::components::Active

58 >().whereEnabled()) {

59 tc->setLocalTranslation(tsc->translation());

60 }

61

62 for (auto [entity, tc, rsc, active] : updateContext.view<

63 helios::engine::modules::spatial::transform::components::ComposeTransformComponent,

64 helios::engine::modules::spatial::transform::components::RotationStateComponent,

65 helios::engine::mechanics::lifecycle::components::Active

66 >().whereEnabled()) {

67

68 tc->setLocalRotation(rsc->rotation());

69 }

70 }

71

72

73

74 };

75

76};

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