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annotate clojure/com/aurellem/run/util.clj @ 318:9a4d3f801c89

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fixing runs to use new util functions.
author Robert McIntyre <rlm@mit.edu>
date Mon, 02 Apr 2012 23:13:49 -0500
parents 3c5bf2221ea0
children 92c47a9cdaea
rev   line source
rlm@313 1 (ns com.aurellem.run.util
rlm@314 2 (:use (com.aurellem.gb util gb-driver vbm characters saves))
rlm@313 3 (:import [com.aurellem.gb.gb_driver SaveState]))
rlm@313 4
rlm@313 5 (def ↑ [:u])
rlm@313 6 (def ↓ [:d])
rlm@313 7 (def ← [:l])
rlm@313 8 (def → [:r])
rlm@313 9
rlm@318 10 [↑ ↓ ← →]
rlm@318 11
rlm@313 12 (defn first-difference
rlm@313 13 [base alt difference-metric [moves root :as script]]
rlm@313 14 (loop [branch-point root
rlm@313 15 actions moves]
rlm@313 16 (let [base-branch (step branch-point base)
rlm@313 17 base-val (difference-metric base-branch)
rlm@313 18 alt-branch (step branch-point alt)
rlm@313 19 alt-val (difference-metric alt-branch)]
rlm@313 20 (if (not= base-val alt-val)
rlm@313 21 [(conj actions alt) alt-branch]
rlm@313 22 (recur base-branch (conj actions base))))))
rlm@313 23
rlm@313 24 (defn repeat-until-different
rlm@314 25 [buttons metric [moves root :as script]]
rlm@313 26 (let [baseline (metric root)]
rlm@313 27 (loop [actions (vec moves)
rlm@313 28 state root]
rlm@313 29 (let [new-state (step state buttons)
rlm@313 30 new-actions (conj actions buttons)]
rlm@313 31 (if (not= (metric new-state) baseline)
rlm@313 32 [new-actions new-state]
rlm@313 33 (recur new-actions new-state))))))
rlm@313 34
rlm@316 35
rlm@316 36 (defn binary-search [metric]
rlm@316 37 (let [baseline (metric 0)]
rlm@316 38 (loop [low 1
rlm@316 39 high 2]
rlm@316 40 (let [low-val (metric low)
rlm@316 41 high-val (metric high)]
rlm@316 42 (println low high)
rlm@316 43 (cond
rlm@316 44 ;; base case
rlm@316 45 (and (= low (dec high))
rlm@316 46 (not= low-val high-val))
rlm@316 47 high
rlm@316 48 ;; exponential growth
rlm@316 49 (= baseline high-val low-val)
rlm@316 50 (recur high (* high 2))
rlm@316 51
rlm@316 52 ;; binary search
rlm@316 53 (and (= baseline low-val)
rlm@316 54 (not= baseline high-val))
rlm@316 55 (let [test (int (/ (+ low high) 2))
rlm@316 56 test-val (metric test)]
rlm@316 57 (if (= test-val baseline)
rlm@316 58 (recur test high)
rlm@316 59 (recur low test))))))))
rlm@316 60
rlm@316 61 (defn delayed-difference
rlm@316 62 [base alt delay difference-metric [moves root :as script]]
rlm@316 63 (let [generator
rlm@316 64 (memoize
rlm@316 65 (fn [n]
rlm@316 66 (run-moves
rlm@316 67 root
rlm@316 68 (repeat n base))))
rlm@316 69 len
rlm@316 70 (binary-search
rlm@316 71 (fn [n]
rlm@316 72 (= (difference-metric
rlm@316 73 (run-moves
rlm@316 74 (generator n)
rlm@316 75 (concat [alt] (repeat delay base))))
rlm@316 76 (difference-metric
rlm@316 77 (run-moves
rlm@316 78 (generator n)
rlm@316 79 (repeat (inc delay) base))))))
rlm@316 80 new-moves (concat moves (repeat len base) [alt])
rlm@316 81 new-state (run-moves (generator len) [alt])]
rlm@316 82 [new-moves new-state]))
rlm@316 83
rlm@313 84 (def x-position-address 0xD361)
rlm@313 85 (def y-position-address 0xD362)
rlm@313 86
rlm@313 87 (defn x-position
rlm@313 88 ([^SaveState state]
rlm@313 89 (aget (memory state) x-position-address))
rlm@313 90 ([] (x-position @current-state)))
rlm@313 91
rlm@313 92 (defn y-position
rlm@313 93 ([^SaveState state]
rlm@313 94 (aget (memory state) y-position-address))
rlm@313 95 ([] (y-position @current-state)))
rlm@313 96
rlm@313 97 (defn move
rlm@313 98 [dir script]
rlm@313 99 (let [current-position-fn
rlm@313 100 (cond (#{← →} dir) x-position
rlm@313 101 (#{↑ ↓} dir) y-position)]
rlm@313 102 (repeat-until-different dir current-position-fn script)))
rlm@313 103
rlm@313 104 (defn walk
rlm@313 105 "Move the character along the given directions."
rlm@313 106 [directions script]
rlm@313 107 (reduce (fn [script dir]
rlm@313 108 (move dir script)) script directions))
rlm@313 109
rlm@313 110 (defn search-string
rlm@314 111 [^SaveState state string]
rlm@313 112 (let [codes
rlm@313 113 (str->character-codes string)
rlm@313 114 codes-length (count codes)
rlm@314 115 mem (vec (memory state))
rlm@313 116 mem-length (count mem)]
rlm@313 117 (loop [idx 0]
rlm@313 118 (if (< (- mem-length idx) codes-length)
rlm@313 119 nil
rlm@313 120 (if (= (subvec mem idx (+ idx codes-length))
rlm@313 121 codes)
rlm@313 122 idx
rlm@313 123 (recur (inc idx)))))))
rlm@313 124
rlm@314 125 (def text-address 0x9DC1)
rlm@314 126
rlm@314 127 (defn displayed-text
rlm@314 128 ([^SaveState state]
rlm@314 129 (character-codes->str
rlm@314 130 (subvec (vec (memory state))
rlm@314 131 text-address
rlm@314 132 (+ text-address 82))))
rlm@314 133 ([] (displayed-text @current-state)))
rlm@314 134
rlm@314 135 (defn scroll-text
rlm@314 136 ([script]
rlm@314 137 (delayed-difference
rlm@314 138 [:b] [:a :b] 25 displayed-text script))
rlm@314 139 ([n script]
rlm@314 140 (reduce (fn [script _]
rlm@314 141 (scroll-text script))
rlm@314 142 script
rlm@314 143 (range n))))
rlm@314 144
rlm@313 145 (defn do-nothing [n script]
rlm@313 146 (->> script
rlm@313 147 (play-moves
rlm@313 148 (repeat n []))))
rlm@313 149
rlm@318 150 (defn delayed-improbability-search
rlm@318 151 "insert blank frames before calling script-fn until
rlm@318 152 metric returns true."
rlm@318 153 [delay metric script-fn script]
rlm@318 154 (loop [blanks 0]
rlm@318 155 (let [new-script
rlm@318 156 (->> script
rlm@318 157 (play-moves
rlm@318 158 (concat (repeat blanks [])))
rlm@318 159 script-fn)
rlm@318 160 future-state
rlm@318 161 (run-moves (second new-script)
rlm@318 162 (repeat delay []))
rlm@318 163 result (metric future-state)]
rlm@318 164 (if result
rlm@318 165 (do
rlm@318 166 (println "improbability factor:" blanks)
rlm@318 167 new-script)
rlm@318 168 (recur (inc blanks))))))
rlm@313 169
rlm@313 170 (defn critical-hit
rlm@313 171 "Put the cursor over the desired attack. This program will
rlm@313 172 determine the appropriate amount of blank frames to
rlm@313 173 insert before pressing [:a] to ensure that the attack is
rlm@313 174 a critical hit."
rlm@313 175 [script]
rlm@318 176 (delayed-improbability-search
rlm@318 177 400
rlm@318 178 #(search-string % "Critical")
rlm@318 179 (partial play-moves [[:a][]])
rlm@318 180 script))
rlm@313 181
rlm@313 182 (defn move-thru-grass
rlm@313 183 [direction script]
rlm@318 184 (delayed-improbability-search
rlm@318 185 600
rlm@318 186 #(nil? (search-string % "Wild"))
rlm@318 187 (partial move direction)
rlm@318 188 script))
rlm@313 189
rlm@313 190 (defn walk-thru-grass
rlm@313 191 [directions script]
rlm@313 192 (reduce (fn [script direction]
rlm@313 193 (move-thru-grass direction script))
rlm@313 194 script directions))
rlm@313 195
rlm@313 196 (defn slowly
rlm@313 197 [delay moves script]
rlm@313 198 (reduce
rlm@313 199 (fn [script move]
rlm@313 200 (->> script
rlm@313 201 (do-nothing delay)
rlm@313 202 (play-moves (vector move))))
rlm@313 203 script moves))
rlm@313 204
rlm@313 205 (defn multiple-times
rlm@313 206 ([n command args script]
rlm@313 207 (reduce (fn [script _]
rlm@313 208 (apply command (concat args [script])))
rlm@313 209 script
rlm@313 210 (range n)))
rlm@313 211 ([n command script]
rlm@313 212 (multiple-times n command [] script)))