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Add gamestate:init()

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This commit is contained in:
Matthias Richter 2011-03-15 17:34:28 +01:00
parent 94da317ed9
commit e885ec90d4
1 changed files with 4 additions and 0 deletions
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4
gamestate.lua
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@ -31,6 +31,7 @@ local function __NULL__() end
-- default gamestate produces error on every callback
local function __ERROR__() error("Gamestate not initialized. Use Gamestate.switch()") end
current = {
init = __ERROR__,
enter = __ERROR__,
leave = __NULL__,
update = __ERROR__,
@ -47,6 +48,7 @@ current = {
function new()
return {
init = __NULL__,
enter = __NULL__,
leave = __NULL__,
update = __NULL__,
@ -66,6 +68,8 @@ function switch(to, ...)
assert(to, "Missing argument: Gamestate to switch to")
current:leave()
local pre = current
to:init()
to.init = __NULL__
current = to
return current:enter(pre, ...)
end