extract magic numbers from hexboard into constants

demo/demo/hexboard/board.cpp

@@ -19,31 +19,34 @@
 #include "hexboard/scene.hpp"
 
 namespace demo::hexboard {
+	constexpr float SCROLL_SPEED = 0.01F;
+	constexpr float HEX_SIZE = 64.0F;
+	constexpr std::array<fggl::grid::IntHex, 4> ISLAND_CENTERS {{
+																	{2, 3},
+																	{6, 7},
+																	{9, 10},
+																	{6, 3}
+	}};
+
 
 	Scene::Scene(fggl::App &app) : GameBase(app), m_board(nullptr), m_screen(1920.F, 1080.F) {
 	}
 
 	void Scene::activate() {
 		m_board = std::make_unique<fggl::grid::HexGrid>();
-		m_layout = std::make_unique<fggl::grid::Layout>( fggl::grid::Orientation::make_pointy(), 64.0F );
+		m_layout = std::make_unique<fggl::grid::Layout>( fggl::grid::Orientation::make_pointy(), HEX_SIZE );
 		//m_layout->m_origin = { 1920.0F * -0.5F, 1080.0F * -0.5F};
 
 		m_selections = std::make_unique<SelectionModel>();
 
-		fggl::grid::TerrainType grass{
+		const fggl::grid::TerrainType grass{
 			.data = std::make_shared<fggl::grid::MaterialData>()
 
 		};
 		grass.data->name = "grass";
 		grass.data->colour = {0.0F, 1.0F, 0.0};
 
-		std::array<fggl::grid::IntHex, 4> islands {{
-													   {3, 3},
-													   {7, 7},
-													   {10, 10},
-													   {7, 3}
-												   }};
-		for (auto islandPoint : islands){
+		for (auto islandPoint : ISLAND_CENTERS){
 			auto island = islandPoint.hexesInRange(2);
 			for (auto &hex : island) {
 				m_board->setTerrain(hex, grass);
@@ -88,7 +91,7 @@ namespace demo::hexboard {
 				}
 
 				auto offset = screenPos - m_dragging.value();
-				m_camera->teleportBy(offset * 0.01F);
+				m_camera->teleportBy(offset * SCROLL_SPEED);
 			} else if ( input.mouse.released(fggl::input::MouseButton::RIGHT) ) {
 				m_dragging = {};
 			}