RandomDirectionInitializer.ixx File

Initializer that configures spawned entities with random direction. More...

Included Headers

#include <helios.util.Random> #include <helios.math> #include <helios.engine.runtime.spawn.SpawnContext> #include <helios.engine.modules.physics.motion.components.DirectionComponent> #include <helios.engine.modules.physics.motion.components.Move2DComponent> #include <helios.engine.runtime.spawn.SpawnPlanCursor> #include <helios.engine.ecs.GameObject> #include <helios.engine.runtime.spawn.behavior.SpawnInitializer>

Namespaces Index

namespace	helios
namespace	engine
	Main engine module aggregating core infrastructure and game systems. More...
namespace	runtime
	Runtime infrastructure for game execution and lifecycle orchestration. More...
namespace	spawn
	Entity spawning infrastructure for the helios engine. More...
namespace	behavior
	Spawn behavior strategies for positioning and initializing entities. More...
namespace	initializers
	Concrete SpawnInitializer implementations. More...

Classes Index

class	RandomDirectionInitializer
	Initializer that configures spawned entities with random direction. More...

Description

Initializer that configures spawned entities with random direction.

File Listing

The file content with the documentation metadata removed is:

1/**

2 * @file RandomDirectionInitializer.ixx

3 * @brief Initializer that configures spawned entities with random direction.

4 */

5module;

6

7export module helios.engine.runtime.spawn.behavior.initializers.RandomDirectionInitializer;

8

9import helios.engine.runtime.spawn.behavior.SpawnInitializer;

10import helios.engine.runtime.spawn.SpawnPlanCursor;

11import helios.engine.runtime.spawn.SpawnContext;

12import helios.engine.ecs.GameObject;

13import helios.engine.modules.physics.motion.components.Move2DComponent;

14import helios.engine.modules.physics.motion.components.DirectionComponent;

15import helios.math;

16import helios.util.Random;

17

18export namespace helios::engine::runtime::spawn::behavior::initializers {

19

20 /**

21 * @brief Initializer that configures spawned entities with random direction.

22 *

23 * @details RandomDirectionInitializer generates a random 2D direction and

24 * applies it to the entity's DirectionComponent and Move2DComponent. This is

25 * useful for spawning enemies that should move in unpredictable directions.

26 *

27 * Components affected:

28 * - **DirectionComponent:** Sets random normalized direction

29 * - **Move2DComponent:** Sets move intent in the random direction

30 *

31 * @note Uses a static Random generator with a fixed seed for reproducibility.

32 *

33 * @see SpawnInitializer

34 */

35 class RandomDirectionInitializer final : public SpawnInitializer {

36

37 public:

38

39 /**

40 * @brief Initializes entity with a random direction.

41 *

42 * @param gameObject The entity to initialize.

43 * @param cursor The current position within the spawn batch (unused).

44 * @param spawnContext Context data (unused).

45 */

46 void initialize(

47 helios::engine::ecs::GameObject gameObject,

48 const SpawnPlanCursor& cursor,

49 const SpawnContext& spawnContext

50 ) override {

51

52 static auto rGen = helios::util::Random(12345);

53

54 auto* mc = gameObject.get<helios::engine::modules::physics::motion::components::Move2DComponent>();

55 auto* dc = gameObject.get<helios::engine::modules::physics::motion::components::DirectionComponent>();

56

57 auto dir = helios::math::vec2f{

58 rGen.randomFloat(-1.0f, 1.0f),

59 rGen.randomFloat(-1.0f, 1.0f)

60 };

61

62 dc->setDirection(dir.normalize().toVec3());

63 mc->move(dc->direction(), 1.0f);

64 }

65

66 };

67

68}

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