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annotate clojure/com/aurellem/run/util.clj @ 319:92c47a9cdaea

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adapting bootstrap to new util functions.
author Robert McIntyre <rlm@mit.edu>
date Tue, 03 Apr 2012 04:16:20 -0500
parents 9a4d3f801c89
children 9637a0f52e7b
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 (defn binary-search [metric]
rlm@316 36 (let [baseline (metric 0)]
rlm@316 37 (loop [low 1
rlm@316 38 high 2]
rlm@316 39 (let [low-val (metric low)
rlm@316 40 high-val (metric high)]
rlm@316 41 (println low high)
rlm@316 42 (cond
rlm@316 43 ;; base case
rlm@316 44 (and (= low (dec high))
rlm@316 45 (not= low-val high-val))
rlm@316 46 high
rlm@316 47 ;; exponential growth
rlm@316 48 (= baseline high-val low-val)
rlm@316 49 (recur high (* high 2))
rlm@316 50
rlm@316 51 ;; binary search
rlm@316 52 (and (= baseline low-val)
rlm@316 53 (not= baseline high-val))
rlm@316 54 (let [test (int (/ (+ low high) 2))
rlm@316 55 test-val (metric test)]
rlm@316 56 (if (= test-val baseline)
rlm@316 57 (recur test high)
rlm@316 58 (recur low test))))))))
rlm@316 59
rlm@316 60 (defn delayed-difference
rlm@316 61 [base alt delay difference-metric [moves root :as script]]
rlm@316 62 (let [generator
rlm@316 63 (memoize
rlm@316 64 (fn [n]
rlm@316 65 (run-moves
rlm@316 66 root
rlm@316 67 (repeat n base))))
rlm@316 68 len
rlm@316 69 (binary-search
rlm@316 70 (fn [n]
rlm@316 71 (= (difference-metric
rlm@316 72 (run-moves
rlm@316 73 (generator n)
rlm@316 74 (concat [alt] (repeat delay base))))
rlm@316 75 (difference-metric
rlm@316 76 (run-moves
rlm@316 77 (generator n)
rlm@316 78 (repeat (inc delay) base))))))
rlm@316 79 new-moves (concat moves (repeat len base) [alt])
rlm@316 80 new-state (run-moves (generator len) [alt])]
rlm@316 81 [new-moves new-state]))
rlm@316 82
rlm@313 83 (def x-position-address 0xD361)
rlm@313 84 (def y-position-address 0xD362)
rlm@313 85
rlm@313 86 (defn x-position
rlm@313 87 ([^SaveState state]
rlm@313 88 (aget (memory state) x-position-address))
rlm@313 89 ([] (x-position @current-state)))
rlm@313 90
rlm@313 91 (defn y-position
rlm@313 92 ([^SaveState state]
rlm@313 93 (aget (memory state) y-position-address))
rlm@313 94 ([] (y-position @current-state)))
rlm@313 95
rlm@313 96 (defn move
rlm@313 97 [dir script]
rlm@313 98 (let [current-position-fn
rlm@313 99 (cond (#{← →} dir) x-position
rlm@313 100 (#{↑ ↓} dir) y-position)]
rlm@313 101 (repeat-until-different dir current-position-fn script)))
rlm@313 102
rlm@313 103 (defn walk
rlm@313 104 "Move the character along the given directions."
rlm@313 105 [directions script]
rlm@313 106 (reduce (fn [script dir]
rlm@313 107 (move dir script)) script directions))
rlm@313 108
rlm@313 109 (defn search-string
rlm@314 110 [^SaveState state string]
rlm@313 111 (let [codes
rlm@313 112 (str->character-codes string)
rlm@313 113 codes-length (count codes)
rlm@314 114 mem (vec (memory state))
rlm@313 115 mem-length (count mem)]
rlm@313 116 (loop [idx 0]
rlm@313 117 (if (< (- mem-length idx) codes-length)
rlm@313 118 nil
rlm@313 119 (if (= (subvec mem idx (+ idx codes-length))
rlm@313 120 codes)
rlm@313 121 idx
rlm@313 122 (recur (inc idx)))))))
rlm@313 123
rlm@314 124 (def text-address 0x9DC1)
rlm@314 125
rlm@314 126 (defn displayed-text
rlm@314 127 ([^SaveState state]
rlm@314 128 (character-codes->str
rlm@314 129 (subvec (vec (memory state))
rlm@314 130 text-address
rlm@314 131 (+ text-address 82))))
rlm@314 132 ([] (displayed-text @current-state)))
rlm@314 133
rlm@314 134 (defn scroll-text
rlm@314 135 ([script]
rlm@314 136 (delayed-difference
rlm@314 137 [:b] [:a :b] 25 displayed-text script))
rlm@314 138 ([n script]
rlm@314 139 (reduce (fn [script _]
rlm@314 140 (scroll-text script))
rlm@314 141 script
rlm@314 142 (range n))))
rlm@314 143
rlm@319 144 (defn end-text
rlm@319 145 ([script]
rlm@319 146 (->> (do-nothing 150)
rlm@319 147 (play-moves [[:b]]))))
rlm@319 148
rlm@313 149 (defn do-nothing [n script]
rlm@313 150 (->> script
rlm@313 151 (play-moves
rlm@313 152 (repeat n []))))
rlm@313 153
rlm@318 154 (defn delayed-improbability-search
rlm@318 155 "insert blank frames before calling script-fn until
rlm@318 156 metric returns true."
rlm@318 157 [delay metric script-fn script]
rlm@318 158 (loop [blanks 0]
rlm@318 159 (let [new-script
rlm@318 160 (->> script
rlm@318 161 (play-moves
rlm@318 162 (concat (repeat blanks [])))
rlm@318 163 script-fn)
rlm@318 164 future-state
rlm@318 165 (run-moves (second new-script)
rlm@318 166 (repeat delay []))
rlm@318 167 result (metric future-state)]
rlm@318 168 (if result
rlm@318 169 (do
rlm@318 170 (println "improbability factor:" blanks)
rlm@318 171 new-script)
rlm@318 172 (recur (inc blanks))))))
rlm@313 173
rlm@313 174 (defn critical-hit
rlm@313 175 "Put the cursor over the desired attack. This program will
rlm@313 176 determine the appropriate amount of blank frames to
rlm@313 177 insert before pressing [:a] to ensure that the attack is
rlm@313 178 a critical hit."
rlm@313 179 [script]
rlm@318 180 (delayed-improbability-search
rlm@318 181 400
rlm@318 182 #(search-string % "Critical")
rlm@318 183 (partial play-moves [[:a][]])
rlm@318 184 script))
rlm@313 185
rlm@313 186 (defn move-thru-grass
rlm@313 187 [direction script]
rlm@318 188 (delayed-improbability-search
rlm@318 189 600
rlm@318 190 #(nil? (search-string % "Wild"))
rlm@318 191 (partial move direction)
rlm@318 192 script))
rlm@313 193
rlm@313 194 (defn walk-thru-grass
rlm@313 195 [directions script]
rlm@313 196 (reduce (fn [script direction]
rlm@313 197 (move-thru-grass direction script))
rlm@313 198 script directions))
rlm@313 199
rlm@313 200 (defn slowly
rlm@313 201 [delay moves script]
rlm@313 202 (reduce
rlm@313 203 (fn [script move]
rlm@313 204 (->> script
rlm@313 205 (do-nothing delay)
rlm@313 206 (play-moves (vector move))))
rlm@313 207 script moves))
rlm@313 208
rlm@313 209 (defn multiple-times
rlm@313 210 ([n command args script]
rlm@313 211 (reduce (fn [script _]
rlm@313 212 (apply command (concat args [script])))
rlm@313 213 script
rlm@313 214 (range n)))
rlm@313 215 ([n command script]
rlm@313 216 (multiple-times n command [] script)))