feat: add basic towers rendering

src/render/loader/WorldLoader.cpp

@@ -188,6 +188,40 @@ GL::VertexArray loadTileSelectModel() {
     return tileSelectVao;
 }
 
+RenderData loadTowerModel(game::TowerPtr tower){
+    RenderData renderData;
+
+    float towerX = tower->getX() - 1;
+    float towerDX = tower->getX() + 2;
+
+    float towerY = tower->getY() - 1;
+    float towerDY = tower->getY() + 2;
+    std::vector<float> positions = {
+        towerX, towerY,
+        towerDX, towerY,
+        towerX, towerDY,
+
+        towerDX, towerY,
+        towerX, towerDY,
+        towerDX, towerDY
+    };
+
+    renderData.positions = positions;
+
+    std::uint8_t towerType = static_cast<std::uint8_t>(tower->getType());
+    std::uint8_t r = 10 * towerType + 40, g = 5 * towerType + 30, b = 10 * towerType + 20;
+
+    float colorFloat;
+    int color = r << 24 | g << 16 | b << 8 | 255;
+    memcpy(&colorFloat, &color, sizeof(int));
+
+    std::vector<float> colors(6, colorFloat);
+    renderData.colors = colors;
+
+    return renderData;
+}
+
+
 } // namespace WorldLoader