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raycast_test.lua
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raycast_test.lua
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--[[ Copyright (C) 2018 Google Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
]]
local make_map = require 'common.make_map'
local pickups = require 'common.pickups'
local custom_observations = require 'decorators.custom_observations'
local game = require 'dmlab.system.game'
local tensor = require 'dmlab.system.tensor'
local helpers = require 'common.helpers'
local api = {}
local MAP_ENTITIES = [[
*****
*A A*
* * *
*P*A*
*****
]]
function api:init(params)
make_map.seedRng(1)
self._map = make_map.makeMap{
mapName = 'empty_room',
mapEntityLayer = MAP_ENTITIES,
useSkybox = true,
}
self.rewards = {}
end
function api:nextMap()
return self._map
end
function api:createPickup(classname)
return pickups.defaults[classname]
end
function api:updateSpawnVars(spawnVars)
if spawnVars.classname == 'info_player_start' then
-- Spawn facing north.
spawnVars.angle = '90'
spawnVars.randomAngleRange = '0'
else
self.rewards[#self.rewards + 1] =
helpers.spawnVarToNumberTable(spawnVars.origin)
end
return spawnVars
end
function api:customObservationSpec()
return {{name = 'RAYCASTS', type = 'Doubles', shape = {0}}}
end
function api:customObservation(name)
assert(name == 'RAYCASTS', 'Bad observation name')
local playerInfo = game:playerInfo()
local result = tensor.DoubleTensor(#self.rewards)
for i, pos in ipairs(self.rewards) do
result(i):val(game:raycast(playerInfo.pos, pos))
end
return result
end
custom_observations.decorate(api)
return api