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add pausing and stepping

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This commit is contained in:
Atdunbg
2025-10-26 15:49:45 +08:00
parent c7acb71355
commit 486b423343
4 changed files with 118 additions and 57 deletions
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61
Editor/src/Editor/EditorLayer.cpp
View File

@ -42,7 +42,9 @@ namespace Hazel
m_CheckerBoardTexture = Texture2D::Create("assets/textures/Checkerboard.png");
m_IconPlay = Texture2D::Create("Resources/Icons/PlayButton.png");
m_IconStop = Texture2D::Create("Resources/Icons/PauseButton.png");
m_IconPause = Texture2D::Create("Resources/Icons/PauseButton.png");
m_IconStep = Texture2D::Create("Resources/Icons/StepButton.png");
m_IconStop = Texture2D::Create("Resources/Icons/StopButton.png");
m_IconSimulate = Texture2D::Create("Resources/Icons/SimulateButton.png");
m_EditorScene = CreateRef<Scene>();
@ -76,12 +78,13 @@ namespace Hazel
// reset Renderer Draw Stats
Renderer2D::ResetStats();
m_ActiveScene->OnViewportResize((uint32_t)m_ViewPortSize.x, (uint32_t)m_ViewPortSize.y);
if (const auto& spec = m_FrameBuffer->GetSpecification();
spec.Width != m_ViewPortSize.x || spec.Height != m_ViewPortSize.y)
{
m_FrameBuffer->Resize((uint32_t)m_ViewPortSize.x, (uint32_t)m_ViewPortSize.y);
m_CameraController.OnResize(m_ViewPortSize.x, m_ViewPortSize.y);
m_EditorCamera.SetViewPortSize(m_ViewPortSize.x, m_ViewPortSize.y);
}
@ -594,6 +597,10 @@ namespace Hazel
m_SceneHierachyPanel.SetContext(m_ActiveScene);
}
void EditorLayer::OnScenePause()
{
}
void EditorLayer::OnSceneSimulation()
{
if (m_SceneState == SceneState::Simulate)
@ -684,17 +691,27 @@ namespace Hazel
ImGui::SetCursorPosX(ImGui::GetWindowContentRegionMax().x * 0.5f - size * 0.5f);
ImGui::SetCursorPosX(ImGui::GetWindowContentRegionMax().x * 0.5f - (size * 0.5f));
Ref<Texture2D> icon = (m_SceneState == SceneState::Edit || m_SceneState == SceneState::Simulate)? m_IconPlay : m_IconStop;
if (ImGui::ImageButton("toolbar-play-edit", icon->GetRendererID(), ImVec2{size, size}, ImVec2{0, 0}, ImVec2{1, 1}))
bool hasPlayButton = m_SceneState == SceneState::Play || m_SceneState == SceneState::Edit;
bool hasSimulateButton = m_SceneState == SceneState::Simulate || m_SceneState == SceneState::Edit;
bool hasPauseButton = m_SceneState != SceneState::Edit;
if (hasPlayButton)
{
if (m_SceneState == SceneState::Edit || m_SceneState == SceneState::Simulate)
OnScenePlay();
else if (m_SceneState == SceneState::Play)
OnSceneStop();
Ref<Texture2D> icon = (m_SceneState == SceneState::Edit || m_SceneState == SceneState::Simulate)? m_IconPlay : m_IconStop;
if (ImGui::ImageButton("toolbar-play-edit", icon->GetRendererID(), ImVec2{size, size}, ImVec2{0, 0}, ImVec2{1, 1}))
{
if (m_SceneState == SceneState::Edit || m_SceneState == SceneState::Simulate)
OnScenePlay();
else if (m_SceneState == SceneState::Play)
OnSceneStop();
}
}
ImGui::SameLine();
if (hasSimulateButton)
{
if (hasPlayButton)
ImGui::SameLine();
Ref<Texture2D> icon = (m_SceneState == SceneState::Edit || m_SceneState == SceneState::Play)? m_IconSimulate : m_IconStop;
if (ImGui::ImageButton("toolbar-simulate", icon->GetRendererID(), ImVec2{size, size}, ImVec2{0, 0}, ImVec2{1, 1}))
{
@ -705,6 +722,32 @@ namespace Hazel
}
}
if (hasPauseButton)
{
bool isPaused = m_ActiveScene->IsPaused();
ImGui::SameLine();
{
Ref<Texture2D> icon = m_IconPause;
if (ImGui::ImageButton("toolbar-pause", icon->GetRendererID(), ImVec2{size, size}, ImVec2{0, 0}, ImVec2{1, 1}))
{
m_ActiveScene->SetPaused(!isPaused);
}
}
if (isPaused)
{
ImGui::SameLine();
{
Ref<Texture2D> icon = m_IconStep;
if (ImGui::ImageButton("toolbar-step", icon->GetRendererID(), ImVec2{size, size}, ImVec2{0, 0}, ImVec2{1, 1}))
{
m_ActiveScene->Step();
}
}
}
}
ImGui::PopStyleVar(2);
ImGui::PopStyleColor(3);
ImGui::End();

3
Editor/src/Editor/EditorLayer.h
View File

@ -29,6 +29,7 @@ namespace Hazel
void OnScenePlay();
void OnSceneSimulation();
void OnSceneStop();
void OnScenePause();
void SaveSceneAs() const;
@ -84,7 +85,7 @@ namespace Hazel
SceneState m_SceneState = SceneState::Edit;
Ref<Texture2D> m_IconPlay, m_IconStop, m_IconSimulate;
Ref<Texture2D> m_IconPlay, m_IconPause, m_IconStep, m_IconStop, m_IconSimulate;
};
}

105
Hazel/src/Hazel/Scene/Scene.cpp
View File

@ -143,6 +143,11 @@ namespace Hazel
}
void Scene::Step(const int frames)
{
m_StepFrame = frames;
}
void Scene::OnPhysics2DStart()
{
b2WorldDef worldDef = b2DefaultWorldDef();
@ -285,49 +290,52 @@ namespace Hazel
void Scene::OnUpdateRuntime(TimeStep& ts)
{
// Update scripts
if (!m_IsPaused || m_StepFrame-- > 0)
{
// C# Script Update
auto view = m_Registry.view<ScriptComponent>();
for (auto e : view)
// Update scripts
{
Entity entity = {e, this};
ScriptEngine::OnUpdateEntity(entity, ts);
}
//
m_Registry.view<NativeScriptComponent>().each([=, this](auto entity, auto& nsc)
{
// TODO: move to Scene::OnScenePlay
if (!nsc.Instance)
// C# Script Update
auto view = m_Registry.view<ScriptComponent>();
for (auto e : view)
{
nsc.Instance = nsc.InstantiateScript();
nsc.Instance->m_Entity = Entity{entity, this};
nsc.Instance->OnCreate();
Entity entity = {e, this};
ScriptEngine::OnUpdateEntity(entity, ts);
}
nsc.Instance->OnUpdate(ts);
});
}
//
m_Registry.view<NativeScriptComponent>().each([=, this](auto entity, auto& nsc)
{
// TODO: move to Scene::OnScenePlay
if (!nsc.Instance)
{
nsc.Instance = nsc.InstantiateScript();
nsc.Instance->m_Entity = Entity{entity, this};
nsc.Instance->OnCreate();
}
// Physics
{
b2World_Step(*m_PhysicsWorld, ts, 4);
nsc.Instance->OnUpdate(ts);
});
}
auto view = m_Registry.view<RigidBody2DComponent>();
for (auto e : view)
// Physics
{
Entity entity = {e, this};
auto& transform = entity.GetComponent<TransformComponent>();
auto& rb2D = entity.GetComponent<RigidBody2DComponent>();
b2World_Step(*m_PhysicsWorld, ts, 4);
b2BodyId& body = rb2D.RuntimeBody;
auto view = m_Registry.view<RigidBody2DComponent>();
for (auto e : view)
{
Entity entity = {e, this};
auto& transform = entity.GetComponent<TransformComponent>();
auto& rb2D = entity.GetComponent<RigidBody2DComponent>();
const auto& position = b2Body_GetPosition(body);
transform.Translation.x = position.x;
transform.Translation.y = position.y;
const float angle = b2Rot_GetAngle(b2Body_GetRotation(body));
transform.Rotation.z = angle;
b2BodyId& body = rb2D.RuntimeBody;
const auto& position = b2Body_GetPosition(body);
transform.Translation.x = position.x;
transform.Translation.y = position.y;
const float angle = b2Rot_GetAngle(b2Body_GetRotation(body));
transform.Rotation.z = angle;
}
}
}
@ -380,24 +388,27 @@ namespace Hazel
void Scene::OnUpdateSimulation(TimeStep& ts, const EditorCamera& camera)
{
// Physics
if (!m_IsPaused || m_StepFrame-- > 0)
{
b2World_Step(*m_PhysicsWorld, ts, 4);
auto view = m_Registry.view<RigidBody2DComponent>();
for (auto e : view)
// Physics
{
Entity entity = {e, this};
auto& transform = entity.GetComponent<TransformComponent>();
auto& rb2D = entity.GetComponent<RigidBody2DComponent>();
b2World_Step(*m_PhysicsWorld, ts, 4);
b2BodyId& body = rb2D.RuntimeBody;
auto view = m_Registry.view<RigidBody2DComponent>();
for (auto e : view)
{
Entity entity = {e, this};
auto& transform = entity.GetComponent<TransformComponent>();
auto& rb2D = entity.GetComponent<RigidBody2DComponent>();
const auto& position = b2Body_GetPosition(body);
transform.Translation.x = position.x;
transform.Translation.y = position.y;
const float angle = b2Rot_GetAngle(b2Body_GetRotation(body));
transform.Rotation.z = angle;
b2BodyId& body = rb2D.RuntimeBody;
const auto& position = b2Body_GetPosition(body);
transform.Translation.x = position.x;
transform.Translation.y = position.y;
const float angle = b2Rot_GetAngle(b2Body_GetRotation(body));
transform.Rotation.z = angle;
}
}
}

6
Hazel/src/Hazel/Scene/Scene.h
View File

@ -49,6 +49,10 @@ namespace Hazel
Entity GetEntityByUUID(UUID uuid);
bool IsRunning() const {return m_IsRunning; }
bool IsPaused() const {return m_IsPaused; }
void SetPaused(const bool pause) {m_IsPaused = pause; }
void Step(int frames = 1);
template<typename... Components>
auto GetAllEntitiesWith()
@ -73,6 +77,8 @@ namespace Hazel
b2WorldId* m_PhysicsWorld = nullptr;
bool m_IsRunning = false;
bool m_IsPaused = false;
int m_StepFrame = 0;
std::unordered_map<UUID, entt::entity> m_EnttMap;