#ifndef RAILLINKS_H #define RAILLINKS_H #include "collection.hpp" #include "game/worldobject.h" #include "gfx/models/mesh.h" #include "gfx/models/vertex.hpp" #include "gfx/renderable.h" #include "link.h" #include <glm/glm.hpp> #include <location.hpp> #include <maths.h> #include <memory> #include <set> #include <sorting.hpp> #include <utility> #include <vector> class Shader; class Texture; // A piece of rail track class RailLink : public Link, public Renderable { public: using Link::Link; void render(const Shader &) const override; protected: void defaultMesh(); Collection<Mesh, false> meshes; std::vector<Vertex> vertices; std::vector<unsigned int> indices; }; class RailLinkStraight : public RailLink { public: RailLinkStraight(const NodePtr &, const NodePtr &); [[nodiscard]] Location positionAt(float dist, unsigned char start) const override; private: RailLinkStraight(NodePtr, NodePtr, const glm::vec3 & diff); }; class RailLinkCurve : public RailLink { public: RailLinkCurve(const NodePtr &, const NodePtr &, glm::vec2); [[nodiscard]] Location positionAt(float dist, unsigned char start) const override; private: RailLinkCurve(const NodePtr &, const NodePtr &, glm::vec3, const Arc); glm::vec3 centreBase; float radius; Arc arc; }; template<typename T> concept RailLinkConcept = std::is_base_of_v<RailLink, T>; class RailLinks : public Renderable, public WorldObject { public: RailLinks(); template<RailLinkConcept T, typename... Params> std::shared_ptr<T> addLink(glm::vec3 a, glm::vec3 b, Params &&... params) { const auto node1 = *nodes.insert(std::make_shared<Node>(a)).first; const auto node2 = *nodes.insert(std::make_shared<Node>(b)).first; auto l {links.create<T>(node1, node2, std::forward<Params>(params)...)}; joinLinks(l); return l; } std::shared_ptr<RailLink> addLinksBetween(glm::vec3 start, glm::vec3 end); private: using Nodes = std::set<NodePtr, PtrSorter<NodePtr>>; Collection<RailLink> links; Nodes nodes; void render(const Shader &) const override; void tick(TickDuration elapsed) override; void joinLinks(const LinkPtr &) const; std::shared_ptr<Texture> texture; }; #endif