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Working EditorScene to test the ECS and custom Scene objects intsead …
…of the ones from the tutorials
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| Original file line number | Diff line number | Diff line change |
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| #include "EditorCamera.hpp" | ||
| #include "Event/InputPoll.hpp" | ||
| #include "TimeManagement/UpdateManagers/SyncUpdateManager.hpp" | ||
| #include <Core/ApplicationInstance.hpp> | ||
| #include <glm/glm.hpp> | ||
| #include <glm/gtc/matrix_transform.hpp> | ||
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| #define GLM_ENABLE_EXPERIMENTAL | ||
| #include <glm/gtx/quaternion.hpp> | ||
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| #include <glm/gtc/matrix_transform.hpp> | ||
| #include <glm/gtx/matrix_decompose.hpp> | ||
| #include <glm/gtc/type_ptr.hpp> | ||
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| namespace engine3d{ | ||
| EditorCamera::EditorCamera(const std::string& p_Tag) : m_Tag(p_Tag) {} | ||
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| void EditorCamera::OnIntegrate(float p_Fov, float p_NearClip, float p_FarClip){ | ||
| m_Fov = p_Fov; | ||
| m_AspectRatio = ((float)ApplicationInstance::GetWindow().GetWidth() / (float)ApplicationInstance::GetWindow().GetHeight()); | ||
| m_NearClip = p_NearClip; | ||
| m_FarClip = p_FarClip; | ||
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| m_ViewportSize.x = (float)ApplicationInstance::GetWindow().GetWidth(); | ||
| m_ViewportSize.y = (float)ApplicationInstance::GetWindow().GetHeight(); | ||
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| RecalculateView(); | ||
| } | ||
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| void EditorCamera::OnUpdate(){ | ||
| if(InputPoll::IsKeyPressed(ENGINE_KEY_LEFT_ALT)){ | ||
| glm::vec2 delta = (InputPoll::GetMousePosition() - m_InitialMousePosition) * 0.003f; | ||
| m_InitialMousePosition = InputPoll::GetMousePosition(); | ||
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| if(InputPoll::IsMousePressed(Mouse::ButtonMiddle)){ | ||
| CameraPan(delta); | ||
| } | ||
| else if(InputPoll::IsMousePressed(Mouse::ButtonLast)){ | ||
| CameraRotate(delta); | ||
| } | ||
| else if(InputPoll::IsMousePressed(Mouse::ButtonRight)){ | ||
| CameraZoom(delta.y); | ||
| } | ||
| } | ||
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| RecalculateView(); | ||
| } | ||
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| glm::quat EditorCamera::GetOrientation() const { | ||
| return glm::quat(glm::vec3(-m_Pitch, -m_Yaw, 1.0f)); | ||
| } | ||
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| glm::vec3 EditorCamera::GetUpDirection() const{ | ||
| return glm::rotate(GetOrientation(), glm::vec3{0.0f, 1.0f, 0.0f}); | ||
| } | ||
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| glm::vec3 EditorCamera::GetRightDirection() const { | ||
| return glm::rotate(GetOrientation(), glm::vec3(1.0f, 0.0f, 0.0f)); | ||
| } | ||
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| glm::vec3 EditorCamera::GetForwardDirection() const { | ||
| return glm::rotate(GetOrientation(), glm::vec3(0.0f, 0.0f, -1.0f)); | ||
| } | ||
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| //! @note Getting pans. | ||
| void EditorCamera::CameraPan(const glm::vec2& p_Data){} | ||
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| void EditorCamera::CameraZoom(float delta) { | ||
| // float dt = SyncUpdateManager::GetInstance()->m_SyncLocalDeltaTime; | ||
| m_Distance -= (delta * ZoomSpeed()); | ||
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| if(m_Distance < 1.0f){ | ||
| m_FocalPoint += GetForwardDirection(); | ||
| m_Distance = 1.0f; | ||
| } | ||
| } | ||
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| void EditorCamera::CameraRotate(const glm::vec2& p_Position) { | ||
| float yawSign = GetUpDirection().y < 0 ? -1.0f : 1.0f; | ||
| m_Yaw += yawSign * p_Position.x * RotationSpeed(); | ||
| m_Pitch += p_Position.y * RotationSpeed(); | ||
| } | ||
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| float EditorCamera::RotationSpeed() const { | ||
| return 0.8f; | ||
| } | ||
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| glm::vec3 EditorCamera::CalculateNewPosition() const{ | ||
| return m_FocalPoint - GetForwardDirection() * m_Distance; | ||
| } | ||
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| float EditorCamera::ZoomSpeed() const{ | ||
| float distance = m_Distance * 0.2f; | ||
| distance = std::max(distance, 0.0f); | ||
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| float speed = distance * distance; | ||
| speed = std::min(speed, 100.0f); | ||
| return speed; | ||
| } | ||
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| void EditorCamera::RecalculateProjection() { | ||
| m_ProjectionMatrix = glm::perspective(glm::radians(m_Fov), m_AspectRatio, m_NearClip, m_FarClip); | ||
| RecalculateView(); | ||
| } | ||
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| void EditorCamera::RecalculateView() { | ||
| m_Position = CalculateNewPosition(); | ||
| glm::quat orientation = GetOrientation(); | ||
| m_ViewMatrix = glm::translate(glm::mat4(1.0f), m_Position) * glm::toMat4(orientation); | ||
| m_ViewMatrix = glm::inverse(m_ViewMatrix); | ||
| } | ||
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| glm::vec3 EditorCamera::RecalculatePosition() const { | ||
| return m_FocalPoint * GetForwardDirection() * m_Distance; | ||
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| } | ||
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| glm::vec2 EditorCamera::PanSpeed() const{ | ||
| float x = std::min(m_ViewportSize.x / 1000.0f, 2.4f); // max = 2.4.f | ||
| float xFactor = 0.0366f * (x * x) - 0.1778f * x + 0.3021f; | ||
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| float y = std::min(m_ViewportSize.y / 1000.0f, 2.4f); // max = 2.4f | ||
| float yFactor = 0.0366f * (y * y) - 0.1778f * y + 0.3021f; | ||
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| return {xFactor, yFactor}; | ||
| } | ||
| }; |
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