82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
#pragma once
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#include <vector>
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#include <algorithm>
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#include <XCEngine/Core/Event.h>
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#include <XCEngine/Components/GameObject.h>
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namespace XCEngine {
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namespace Editor {
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class SelectionManager {
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public:
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static SelectionManager& Get() {
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static SelectionManager instance;
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return instance;
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}
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void SetSelectedEntity(::XCEngine::Components::GameObject* entity) {
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if (m_selectedEntities.empty()) {
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m_selectedEntities.push_back(entity);
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} else {
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m_selectedEntities[0] = entity;
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m_selectedEntities.resize(1);
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}
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OnSelectionChanged.Invoke(entity ? entity->GetID() : 0);
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}
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void SetSelectedEntities(const std::vector<::XCEngine::Components::GameObject*>& entities) {
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m_selectedEntities = entities;
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if (!entities.empty()) {
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OnSelectionChanged.Invoke(entities.back()->GetID());
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} else {
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OnSelectionChanged.Invoke(0);
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}
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}
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void AddToSelection(::XCEngine::Components::GameObject* entity) {
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if (entity && !IsSelected(entity)) {
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m_selectedEntities.push_back(entity);
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OnSelectionChanged.Invoke(entity->GetID());
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}
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}
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void RemoveFromSelection(::XCEngine::Components::GameObject* entity) {
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auto it = std::find(m_selectedEntities.begin(), m_selectedEntities.end(), entity);
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if (it != m_selectedEntities.end()) {
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m_selectedEntities.erase(it);
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OnSelectionChanged.Invoke(entity ? entity->GetID() : 0);
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}
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}
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void ClearSelection() {
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m_selectedEntities.clear();
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OnSelectionChanged.Invoke(0);
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}
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::XCEngine::Components::GameObject* GetSelectedEntity() const {
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return m_selectedEntities.empty() ? nullptr : m_selectedEntities.back();
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}
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const std::vector<::XCEngine::Components::GameObject*>& GetSelectedEntities() const {
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return m_selectedEntities;
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}
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bool HasSelection() const { return !m_selectedEntities.empty(); }
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size_t GetSelectionCount() const { return m_selectedEntities.size(); }
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bool IsSelected(::XCEngine::Components::GameObject* entity) const {
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return std::find(m_selectedEntities.begin(), m_selectedEntities.end(), entity) != m_selectedEntities.end();
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}
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::XCEngine::Core::Event<uint64_t> OnSelectionChanged;
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private:
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SelectionManager() = default;
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std::vector<::XCEngine::Components::GameObject*> m_selectedEntities;
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};
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}
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}
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