centre sprites on GameObject's position

Author: RiverHillbug

FluffyEngine/Sprite.cpp

@@ -3,6 +3,7 @@
 #include "GameObject.h"
 #include "ResourceManager.h"
 #include "Texture2D.h"
+#include "Rectf.h"
 
 namespace Fluffy
 {
@@ -13,12 +14,27 @@ namespace Fluffy
 			m_pTexture = ResourceManager::GetInstance().LoadTexture(fileName);
 	}
 
+	Sprite::Sprite(class GameObject* pOwner, const std::string& fileName, const glm::vec2& offset)
+		: Sprite(pOwner, fileName)
+	{
+		m_Offset = offset;
+	}
+
+	Rectf Sprite::GetRect() const
+	{
+		return Rectf
+		{
+			m_pOwner->GetWorldPosition() - (m_pTexture->GetSize() * 0.5f) + m_Offset,
+			m_pTexture->GetSize()
+		};
+	}
+
 	void Sprite::Render() const
 	{
 		if (m_pTexture == nullptr)
 			return;
 
-		const auto& pos = m_pOwner->GetWorldPosition();
+		const auto& pos = m_pOwner->GetWorldPosition() - (m_pTexture->GetSize() * 0.5f) + m_Offset;
 		Renderer::GetInstance().RenderTexture(*m_pTexture, pos.x, pos.y);
 	}
 

FluffyEngine/Sprite.h

@@ -4,6 +4,7 @@
 #include "Component.h"
 #include "IRenderable.h"
 #include "Texture2D.h"
+#include "Rectf.h"
 
 namespace Fluffy
 {
@@ -13,8 +14,10 @@ namespace Fluffy
 		void Render() const override;
 		void SetTexture(const std::string& fileName);
 		inline glm::vec2 GetTextureSize() const { return m_pTexture->GetSize(); }
+		Rectf GetRect() const;
 
 		Sprite(class GameObject* pOwner, const std::string& fileName);
+		Sprite(class GameObject* pOwner, const std::string& fileName, const glm::vec2& offset);
 		virtual ~Sprite() = default;
 		Sprite(const Sprite& other) = delete;
 		Sprite(Sprite&& other) = delete;
@@ -23,5 +26,6 @@ namespace Fluffy
 
 	private:
 		std::shared_ptr<class Texture2D> m_pTexture{};
+		glm::vec2 m_Offset{ 0.0f, 0.0f };
 	};
 }

FluffyEngine/Texture2D.cpp

@@ -7,7 +7,7 @@ Texture2D::~Texture2D()
 	SDL_DestroyTexture(m_pTexture);
 }
 
-glm::ivec2 Texture2D::GetSize() const
+glm::vec2 Texture2D::GetSize() const
 {
 	SDL_Rect dst;
 	SDL_QueryTexture(GetSDLTexture(), nullptr, nullptr, &dst.w, &dst.h);

FluffyEngine/Texture2D.h

@@ -13,7 +13,7 @@ class Texture2D final
 	explicit Texture2D(SDL_Texture* texture);
 	~Texture2D();
 
-	glm::ivec2 GetSize() const;
+	glm::vec2 GetSize() const;
 
 	Texture2D(const Texture2D&) = delete;
 	Texture2D(Texture2D&&) = delete;