BoundsUpdateSystem.ixx File

System for updating collider bounds based on world transforms. More...

Included Headers

#include <helios.engine.mechanics.lifecycle.components.Active> #include <helios.engine.ecs.System> #include <helios.engine.modules.physics.collision.Bounds> #include <helios.math> #include <helios.core.units.Unit> #include <helios.engine.ecs.GameObject> #include <helios.engine.modules.spatial.transform.components.RotationStateComponent> #include <helios.engine.runtime.world.GameWorld> #include <helios.engine.modules.spatial.transform.components.ScaleStateComponent> #include <helios.engine.modules.rendering.model.components.ModelAabbComponent> #include <helios.engine.runtime.world.UpdateContext> #include <helios.engine.modules.scene.components.SceneNodeComponent> #include <helios.engine.modules.spatial.transform.components.TranslationStateComponent> #include <helios.engine.modules.physics.collision.components.AabbColliderComponent>

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	physics
	Physics simulation and collision detection subsystem for the game engine. More...
namespace	collision
namespace	systems
	Collision detection and response systems. More...

Classes Index

class	BoundsUpdateSystem
	System that updates AABB colliders based on entity transforms. More...

Description

System for updating collider bounds based on world transforms.

File Listing

The file content with the documentation metadata removed is:

1/**

2 * @file BoundsUpdateSystem.ixx

3 * @brief System for updating collider bounds based on world transforms.

4 */

5module;

6

7

8

9export module helios.engine.modules.physics.collision.systems.BoundsUpdateSystem;

10

11import helios.engine.modules.physics.collision.Bounds;

12

13import helios.engine.ecs.System;

14import helios.math;

15

16import helios.core.units.Unit;

17

18import helios.engine.ecs.GameObject;

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

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

21

22import helios.engine.modules.scene.components.SceneNodeComponent;

23import helios.engine.modules.spatial.transform.components.ScaleStateComponent;

24import helios.engine.modules.spatial.transform.components.TranslationStateComponent;

25import helios.engine.modules.spatial.transform.components.RotationStateComponent;

26import helios.engine.modules.physics.collision.components.AabbColliderComponent;

27

28import helios.engine.modules.rendering.model.components.ModelAabbComponent;

29

30import helios.engine.mechanics.lifecycle.components.Active;

31

32export namespace helios::engine::modules::physics::collision::systems {

33

34 /**

35 * @brief System that updates AABB colliders based on entity transforms.

36 *

37 * @details

38 * This system recalculates the world-space AABB for entities by transforming

39 * the canonical model AABB through the composed local transform (Translation * Rotation * Scale)

40 * and the parent's world transform.

41 *

42 * Required components:

43 * - ModelAabbComponent (source canonical AABB)

44 * - SceneNodeComponent (for parent world transform)

45 * - TranslationStateComponent (local translation)

46 * - ScaleStateComponent (local scaling)

47 * - RotationStateComponent (local rotation)

48 * - AabbColliderComponent (receives the updated world-space AABB)

49 *

50 * @see helios::engine::modules::physics::collision::Bounds::computeWorldAabb()

51 */

52 class BoundsUpdateSystem : public helios::engine::ecs::System {

53

54 public:

55

56 /**

57 * @brief Updates collider bounds for all applicable entities.

58 *

59 * @details

60 * For each entity with the required components, composes the local transform

61 * from translation, rotation, and scale, then applies the parent world transform

62 * to compute the final world-space AABB.

63 *

64 * @param updateContext Context containing deltaTime and other frame data.

65 */

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

67

68 for (auto [entity, mab, sc, tsc, sca, rsc, bc, active] : gameWorld_->view<

69 helios::engine::modules::rendering::model::components::ModelAabbComponent,

70 helios::engine::modules::scene::components::SceneNodeComponent,

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

72 helios::engine::modules::spatial::transform::components::ScaleStateComponent,

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

74 helios::engine::modules::physics::collision::components::AabbColliderComponent,

75 helios::engine::mechanics::lifecycle::components::Active

76 >().whereEnabled()) {

77

78 bc->setBounds(helios::engine::modules::physics::collision::Bounds::computeWorldAabb(

79 *mab, *sc, *tsc, *sca, *rsc

80 ));

81 }

82 }

83

84 };

85

86}

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