nishbox/misc/relation.gv

digraph relation {
	graph [
		label = "GoldFish Engine Relation",
		rankdir = LR,
		nodesep = 0.5,
		ranksep = 1
//		nodesep = 1.1,
//		ranksep = 1.05
	];
	node [
		shape = box
	];

	subgraph cluster_user {
		label = "Game";
		up [
			label = "Program"
		];
		uf [
			label = "Frame callback"
		];
	};

	subgraph cluster_engine {
		label = "GoldFish Engine";
		gf [
			label = "gf_engine_t"
		];
		subgraph cluster_drawing {
			label = "Drawing Interface";
			dd [
				label = "gf_draw_driver_t"
			];
			dp [
				label = "gf_draw_platform_t"
			];
			dt [
				label = "gf_draw_t"
			];

			subgraph cluster_graphic {
				label = "Graphic";
				gi [
					label = "Graphic Inteface"
				];
				gui [
					label = "GUI"
				];
			};
		};

		subgraph cluster_physics {
			label = "Physics Interface";
			pt [
				label = "gf_physics_t"
			];
		};

		subgraph cluster_thread {
			label = "Thread Interface";
			tt [
				label = "gf_thread_t";
			];
			tct [
				label = "gf_thread_context_t";
			];
		};

		subgraph cluster_integrated {
			label = "Integrated";
			ode [
				label = "ODE"
			];
			miniaudio [
				label = "miniaudio"
			];

			subgraph cluster_stb {
				label = "stb";
				stb_image [
					label = "stb_image"
				];
			};
		};
	};

	subgraph cluster_external {
		label = "External";
		pthread [
			label = "POSIX Thread"
		];
		opengl [
			label = "OpenGL"
		];
		glu [
			label = "GLU"
		];
		glx [
			label = "GLX"
		];
		glfw [
			label = "GLFW"
		];

		subgraph cluster_win32 {
			label = "Win32 API";
			win32thread [
				label = "Win32 Thread"
			];
			wgl [
				label = "WGL"
			];
		};
	};

	// Game
	up -> uf [
		dir = none
	];

	up -> gf;

	// Engine
	gf -> dt;
	
	gf -> pt [
		dir = both
	];

	// Drawing
	dt -> dd [
		dir = both
	];
	dt -> dp [
		dir = both
	];

	dp -> dd [
		dir = both
	];

	dt -> uf [
		dir = both
	];

	dd -> {opengl};

	dp -> {glx wgl glfw};

	// Graphic
	dt -> gi;
	dt -> gui;
	gui -> gi;

	gi -> dd;

	// Physics
	pt -> ode [
		dir = both
	];

	// Thread
	tt -> tct [
		dir = none
	];

	tt -> {pthread win32thread};
	{pthread win32thread} -> tct;

	// External
	glu -> opengl [
		dir = both
	];

	opengl -> {glx wgl glfw} [
		dir = both
	];
}