feat: add basic towers rendering

include/render/VertexCache.h

@@ -0,0 +1,34 @@
+#include <unordered_map>
+#include <cstdint>
+#include <memory>
+
+#include "render/loader/GLLoader.h"
+
+
+namespace td {
+namespace render {
+
+
+class VertexCache {
+
+typedef std::vector<float> Vector;
+typedef std::pair<Vector::iterator, Vector::iterator> ElementsIndex;
+typedef std::pair<ElementsIndex, ElementsIndex> DataIndex;
+
+private:
+    Vector m_Positions;
+    Vector m_Colors;
+    std::unordered_map<std::uint64_t, DataIndex> m_Indexes;
+    std::unique_ptr<GL::VertexArray> m_VertexArray;
+public:
+    void addData(std::uint64_t index, std::vector<float> positions, std::vector<float> colors);
+    void removeData(std::uint64_t index);
+    void clear();
+    void updateVertexArray();
+
+    const GL::VertexArray& getVertexArray() const { return *m_VertexArray; }
+    bool isEmpty() const { return m_VertexArray == nullptr; }
+};
+
+} // namespace render
+} // namespace td

include/render/WorldRenderer.h

@@ -1,8 +1,8 @@
 #pragma once
 
 #include "game/World.h"
-#include "render/loader/GLLoader.h"
 #include "render/Renderer.h"
+#include "render/VertexCache.h"
 
 #include <glm/glm.hpp>
 
@@ -29,12 +29,16 @@ private:
     float m_Zoom = 1;
     float m_CamSensibility = 1;
     bool m_TowerPlacePopupOpened = false;
+    VertexCache m_TowersCache;
 public:
     WorldRenderer(game::World* world, client::ClientGame* client);
     ~WorldRenderer();
 
     void loadModels();
 
+    void addTower(game::TowerPtr tower);
+    void removeTower(game::TowerPtr tower);
+
     void update();
     void render();
 

include/render/loader/WorldLoader.h

@@ -8,9 +8,15 @@ namespace render {
 
 namespace WorldLoader {
 
+struct RenderData{
+    std::vector<float> positions;
+    std::vector<float> colors;
+};
+
 GL::VertexArray loadMobModel();
 GL::VertexArray loadWorldModel(const td::game::World* world);
 GL::VertexArray loadTileSelectModel();
+RenderData loadTowerModel(game::TowerPtr tower);
 
 } // namespace WorldLoader