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------------------------------------------------------------------------------
-- lm_1way.lua:
-- One-way stair marker.
------------------------------------------------------------------------------
OneWayStair = PortalDescriptor:new()
OneWayStair.__index = OneWayStair
function OneWayStair:new(props)
local ows = PortalDescriptor.new(self, props)
setmetatable(ows, self)
return ows
end
function OneWayStair:activate(marker)
local ev = dgn.dgn_event_type('player_climb')
dgn.register_listener(ev, marker, marker:pos())
end
function OneWayStair:event(marker, ev)
if ev:type() == dgn.dgn_event_type('player_climb') then
local x, y = ev:pos()
dgn.terrain_changed(x, y, self.props.floor or 'floor', false)
dgn.remove_listener(marker, ev:pos())
dgn.remove_marker(marker)
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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