tweaks and reordering

main.lua

@@ -24,17 +24,19 @@ function mt.__newindex(t, n, v) error("cannot assign undeclared global '" .. tos
 function mt.__index(t, n) error("cannot use undeclared global '" .. tostring(n) .. "'", 2) end
 local function globalize(t) for k, v in pairs(t) do rawset(_G, k, v) end end
 
--- configuration and globals.
+-- configuration.
 
 --randomseed(11)
 
 local playable_mode = false
 --
-local deterministic = false -- use argmax on outputs instead of random sampling.
+-- true greedy epsilon has both deterministic and det_epsilon set.
+local deterministic = true -- use argmax on outputs instead of random sampling.
 local det_epsilon = true -- take random actions with probability eps.
-local eps_start = 0.50
+-- using parameters from DQN... sorta.
-local eps_stop = 0.05
+local eps_start = 1.0 * 1/60 -- i think this should be * 1/16 for atari ref.
-local eps_frames = 60*60*60
+local eps_stop  = 0.1 * 1/60 -- "
+local eps_frames = 1000000
 local consider_past_rewards = false
 local learn_start_select = false
 --
@@ -50,6 +52,27 @@ local enable_network = not playable_mode
 
 local input_size = 281 -- TODO: let the script figure this out for us.
 
+local ok_routines = {
+    [0x4] = true, -- sliding down flagpole
+    [0x5] = true, -- end of level auto-walk
+    [0x7] = true, -- start of level auto-walk
+    [0x8] = true, -- normal (in control)
+    [0x9] = true, -- acquiring mushroom
+    [0xA] = true, -- losing big mario
+    [0xB] = true, -- uhh
+    [0xC] = true, -- acquiring fireflower
+}
+
+local bad_states = {
+    power = true,
+    waiting_demo = true,
+    playing_demo = true,
+    unknown = true,
+    lose = true,
+}
+
+-- state.
+
 local epoch_i = 0
 local base_params
 local trial_i = 0
@@ -83,25 +106,6 @@ local score_old
 local once = false
 local reset = true
 
-local ok_routines = {
-    [0x4] = true, -- sliding down flagpole
-    [0x5] = true, -- end of level auto-walk
-    [0x7] = true, -- start of level auto-walk
-    [0x8] = true, -- normal (in control)
-    [0x9] = true, -- acquiring mushroom
-    [0xA] = true, -- losing big mario
-    [0xB] = true, -- uhh
-    [0xC] = true, -- acquiring fireflower
-}
-
-local bad_states = {
-    power = true,
-    waiting_demo = true,
-    playing_demo = true,
-    unknown = true,
-    lose = true,
-}
-
 local state_old = ''
 
 -- localize some stuff.
@@ -508,6 +512,31 @@ local function handle_tiles()
     end
 end
 
+local function prepare_epoch()
+    print('preparing epoch '..tostring(epoch_i)..'. this might take a while.')
+    base_params = network:collect()
+    empty(trial_noise)
+    empty(trial_rewards)
+    for i = 1, epoch_trials do
+        local noise = nn.zeros(#base_params)
+        for j = 1, #base_params do noise[j] = nn.normal() end
+        trial_noise[i] = noise
+    end
+    trial_i = 0
+end
+
+local function load_next_trial()
+    trial_i = trial_i + 1
+    print('loading trial', trial_i)
+    local W = nn.copy(base_params)
+    local noise = trial_noise[trial_i]
+    local devsqrt = sqrt(deviation)
+    for i, v in ipairs(base_params) do
+        W[i] = v + devsqrt * noise[i]
+    end
+    network:distribute(W)
+end
+
 local function learn_from_epoch()
     print()
     print('rewards:', trial_rewards)
@@ -571,33 +600,11 @@ local function learn_from_epoch()
     print()
 end
 
-local function prepare_epoch()
-    print('preparing epoch '..tostring(epoch_i)..'. this might take a while.')
-    base_params = network:collect()
-    empty(trial_noise)
-    empty(trial_rewards)
-    for i = 1, epoch_trials do
-        local noise = nn.zeros(#base_params)
-        for j = 1, #base_params do noise[j] = nn.normal() end
-        trial_noise[i] = noise
-    end
-    trial_i = 0
-end
-
-local function load_next_trial()
-    trial_i = trial_i + 1
-    print('loading trial', trial_i)
-    local W = nn.copy(base_params)
-    local noise = trial_noise[trial_i]
-    local devsqrt = sqrt(deviation)
-    for i, v in ipairs(base_params) do
-        W[i] = v + devsqrt * noise[i]
-    end
-    network:distribute(W)
-end
-
 local function do_reset()
-    print("resetting in state: "..get_state()..". reward:", reward)
+    local state = get_state()
+    -- be a little more descriptive.
+    if state == 'dead' and get_timer() == 0 then state = 'timeup' end
+    print("resetting in state: "..state..". reward:", reward)
 
     if trial_i > 0 then trial_rewards[trial_i] = reward end