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------------------------------------------------------------------------------
-- lm_1way.lua:
-- One-way stair marker.
------------------------------------------------------------------------------
OneWayStair = util.subclass(PortalDescriptor)
OneWayStair.CLASS = "OneWayStair"
function OneWayStair:activate(marker)
local ev = dgn.dgn_event_type('player_climb')
dgn.register_listener(ev, marker, marker:pos())
end
function OneWayStair:disappear(marker, affect_player, x, y)
dgn.terrain_changed(x, y, self.props.floor or 'floor', affect_player, false)
dgn.remove_listener(marker, x, y)
dgn.remove_marker(marker)
end
function OneWayStair:event(marker, ev)
if ev:type() == dgn.dgn_event_type('player_climb') then
local x, y = ev:pos()
-- If there's an onclimb function, call it before we do our thing.
if self.props.onclimb then
self.props.onclimb(self, marker, ev)
end
self:disappear(marker, false, x, y)
return true
end
end
function OneWayStair:read(marker, th)
PortalDescriptor.read(self, marker, th)
setmetatable(self, OneWayStair)
return self
end
function one_way_stair(pars)
return OneWayStair:new(pars)
end
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