-- A space shooter, from the catalogue:  a ship on a body pushed by thrust and turned by the keys,
-- bolts it fires, rocks that come at it, and a camera behind.  No gravity.
return {
	title  = "Author test:  space",
	size   = { w = 720, h = 480 },
	layers = { { kind = "scene3d", gravity = 0, ambient = { r = 40, g = 40, b = 70 }, fov = 65 }, { kind = "overlay" } },
	vars   = { score = 0, rocks = 0 },

	types = {
		ship    = { look = { kind = "mesh", shape = "box", w = 1.2, h = 0.4, d = 2.4, r = 200, g = 210, b = 240 },
		            behaviours = { { kind = "body", mass = 50, friction = 0 },
		                           { kind = "thrust", force = 400, turn = 1.2 },
		                           { kind = "keys", player = 1, left = "LEFT", right = "RIGHT", up = "UP", down = "DOWN", fire = "SPACE" },
		                           { kind = "shooter", spawns = "bolt", rate = 0.2, offsetY = 0 } } },
		bolt    = { look = { kind = "mesh", shape = "sphere", w = 0.3, r = 255, g = 240, b = 120 },
		            behaviours = { { kind = "projectile", vx = 0, vy = 0, vz = -30, life = 3 } } },
		rock    = { look = { kind = "mesh", shape = "sphere", w = 2, r = 130, g = 110, b = 90 },
		            vars = { health = 1 },
		            behaviours = { { kind = "projectile", vx = 0, vy = 0, vz = 6, life = 20 }, { kind = "health", max = 1 } } },
		belt    = { look = { kind = "none" }, behaviours = { { kind = "spawner", spawns = "rock", every = 0.8, max = 8, total = 12, points = { { x = -4, y = 0, z = -60 }, { x = 0, y = 0, z = -60 }, { x = 4, y = 0, z = -60 }, { x = 2, y = 1, z = -60 } } } } },
		camera  = { look = { kind = "none" }, behaviours = { { kind = "camera", mode = "follow", target = "ship", x = 0, y = 3, z = 8, lookY = 0, lag = 0.2 } } },
		readout = { look = { kind = "text", text = "", r = 235, g = 235, b = 245 } }
	},

	rooms = {
		{ name = "belt",
		  entities = {
			{ type = "ship",    id = "ship",    x = 0,  y = 0,  z = 0  },
			{ type = "belt",    id = "belt",    x = 0,  y = 0,  z = -60 },
			{ type = "camera",  id = "camera",  x = 0,  y = 3,  z = 8  },
			{ type = "readout", id = "readout", x = 12, y = 12, z = 0  }
		  } }
	},

	rules = {
		{ note = "A bolt meets a rock",
		  on   = "collision", a = "bolt", b = "rock",
		  act  = { { "destroy", entity = "self" }, { "damage", entity = "other", amount = 1 } } },

		{ note = "A rock is broken",
		  on   = "death", type = "rock",
		  act  = { { "addScore", amount = 25 }, { "addVar", name = "rocks", amount = 1 } } },

		{ note = "The readout, every frame",
		  on   = "frame",
		  act  = { { "setText", entity = "readout", text = '"score " .. score .. "  rocks " .. rocks' } } }
	}
}