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https://github.com/bailwillharr/engine.git
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68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
#include "scene.h"
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#include "components/transform.h"
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#include "components/renderable.h"
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#include "components/collider.h"
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#include "components/custom.h"
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#include "systems/transform.h"
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#include "systems/render.h"
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#include "systems/collisions.h"
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#include "systems/custom_behaviour.h"
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namespace engine {
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Scene::Scene(Application* app) : app_(app) {
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// event system
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event_system_ = std::make_unique<EventSystem>();
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// ecs configuration:
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RegisterComponent<TransformComponent>();
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RegisterComponent<RenderableComponent>();
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RegisterComponent<ColliderComponent>();
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RegisterComponent<CustomComponent>();
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// Order here matters:
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RegisterSystem<TransformSystem>();
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RegisterSystem<PhysicsSystem>();
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RegisterSystem<RenderSystem>();
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RegisterSystem<CustomBehaviourSystem>();
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}
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Scene::~Scene() {}
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uint32_t Scene::CreateEntity(const std::string& tag, uint32_t parent) {
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uint32_t id = next_entity_id_++;
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signatures_.emplace(id, std::bitset<kMaxComponents>{});
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auto t = AddComponent<TransformComponent>(id);
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t->position = {0.0f, 0.0f, 0.0f};
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t->rotation = {};
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t->scale = {1.0f, 1.0f, 1.0f};
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t->tag = tag;
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t->parent = parent;
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return id;
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}
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uint32_t Scene::getEntity(const std::string& tag, uint32_t parent) {
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return GetSystem<TransformSystem>()->GetChildEntity(parent, tag);
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}
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size_t Scene::GetComponentSignaturePosition(size_t hash) {
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return component_signature_positions_.at(hash);
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}
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void Scene::Update(float ts) {
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for (auto& [name, system] : systems_) {
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system->OnUpdate(ts);
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}
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event_system_->DespatchEvents(); // clears event queue
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}
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} // namespace engine
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