main.lua

#!/usr/bin/env lua5.1

local parser = require "scansion.parser";

io.input(arg[1]);
local script_data = io.read("*a");

local script = assert(parser.parse(script_data));

local c = 0;
for name, object in pairs(script.objects) do
	local o = require("scansion.objects."..object.type);
	object.handler = o;
	o._validate(object);
	c = c + 1;
end

print("Script defines "..c.." objects, and "..#script.actions.." actions");

for _, action in pairs(script.actions) do
	local object = script.objects[action.object_name];
	local handler = object.handler;
	assert(handler[action.action], "Objects of type '"..object.type.."' do not support action '"..action.action.."'");
		
	handler[action.action](object, action.extra);
end

verse.loop()