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annotate clojure/com/aurellem/run/util.clj @ 327:fe6fd2323264

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corrected compilation bugs
author Robert McIntyre <rlm@mit.edu>
date Thu, 05 Apr 2012 12:59:30 -0500
parents 9637a0f52e7b
children 35960b03693f
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@327 12 (defn do-nothing [n script]
rlm@327 13 (->> script
rlm@327 14 (play-moves
rlm@327 15 (repeat n []))))
rlm@327 16
rlm@313 17 (defn first-difference
rlm@313 18 [base alt difference-metric [moves root :as script]]
rlm@313 19 (loop [branch-point root
rlm@313 20 actions moves]
rlm@313 21 (let [base-branch (step branch-point base)
rlm@313 22 base-val (difference-metric base-branch)
rlm@313 23 alt-branch (step branch-point alt)
rlm@313 24 alt-val (difference-metric alt-branch)]
rlm@313 25 (if (not= base-val alt-val)
rlm@313 26 [(conj actions alt) alt-branch]
rlm@313 27 (recur base-branch (conj actions base))))))
rlm@313 28
rlm@313 29 (defn repeat-until-different
rlm@314 30 [buttons metric [moves root :as script]]
rlm@313 31 (let [baseline (metric root)]
rlm@313 32 (loop [actions (vec moves)
rlm@313 33 state root]
rlm@313 34 (let [new-state (step state buttons)
rlm@313 35 new-actions (conj actions buttons)]
rlm@313 36 (if (not= (metric new-state) baseline)
rlm@313 37 [new-actions new-state]
rlm@313 38 (recur new-actions new-state))))))
rlm@313 39
rlm@316 40 (defn binary-search [metric]
rlm@316 41 (let [baseline (metric 0)]
rlm@316 42 (loop [low 1
rlm@316 43 high 2]
rlm@316 44 (let [low-val (metric low)
rlm@316 45 high-val (metric high)]
rlm@316 46 (println low high)
rlm@316 47 (cond
rlm@316 48 ;; base case
rlm@316 49 (and (= low (dec high))
rlm@316 50 (not= low-val high-val))
rlm@316 51 high
rlm@316 52 ;; exponential growth
rlm@316 53 (= baseline high-val low-val)
rlm@316 54 (recur high (* high 2))
rlm@316 55
rlm@316 56 ;; binary search
rlm@316 57 (and (= baseline low-val)
rlm@316 58 (not= baseline high-val))
rlm@316 59 (let [test (int (/ (+ low high) 2))
rlm@316 60 test-val (metric test)]
rlm@316 61 (if (= test-val baseline)
rlm@316 62 (recur test high)
rlm@316 63 (recur low test))))))))
rlm@316 64
rlm@316 65 (defn delayed-difference
rlm@316 66 [base alt delay difference-metric [moves root :as script]]
rlm@316 67 (let [generator
rlm@316 68 (memoize
rlm@316 69 (fn [n]
rlm@316 70 (run-moves
rlm@316 71 root
rlm@316 72 (repeat n base))))
rlm@316 73 len
rlm@316 74 (binary-search
rlm@316 75 (fn [n]
rlm@316 76 (= (difference-metric
rlm@316 77 (run-moves
rlm@316 78 (generator n)
rlm@316 79 (concat [alt] (repeat delay base))))
rlm@316 80 (difference-metric
rlm@316 81 (run-moves
rlm@316 82 (generator n)
rlm@316 83 (repeat (inc delay) base))))))
rlm@316 84 new-moves (concat moves (repeat len base) [alt])
rlm@316 85 new-state (run-moves (generator len) [alt])]
rlm@316 86 [new-moves new-state]))
rlm@316 87
rlm@313 88 (def x-position-address 0xD361)
rlm@313 89 (def y-position-address 0xD362)
rlm@313 90
rlm@313 91 (defn x-position
rlm@313 92 ([^SaveState state]
rlm@313 93 (aget (memory state) x-position-address))
rlm@313 94 ([] (x-position @current-state)))
rlm@313 95
rlm@313 96 (defn y-position
rlm@313 97 ([^SaveState state]
rlm@313 98 (aget (memory state) y-position-address))
rlm@313 99 ([] (y-position @current-state)))
rlm@313 100
rlm@313 101 (defn move
rlm@313 102 [dir script]
rlm@313 103 (let [current-position-fn
rlm@313 104 (cond (#{← →} dir) x-position
rlm@313 105 (#{↑ ↓} dir) y-position)]
rlm@313 106 (repeat-until-different dir current-position-fn script)))
rlm@313 107
rlm@313 108 (defn walk
rlm@313 109 "Move the character along the given directions."
rlm@313 110 [directions script]
rlm@313 111 (reduce (fn [script dir]
rlm@313 112 (move dir script)) script directions))
rlm@313 113
rlm@313 114 (defn search-string
rlm@320 115 ([^SaveState state string]
rlm@320 116 (let [codes
rlm@320 117 (str->character-codes string)
rlm@320 118 codes-length (count codes)
rlm@320 119 mem (vec (memory state))
rlm@320 120 mem-length (count mem)]
rlm@320 121 (loop [idx 0]
rlm@320 122 (if (< (- mem-length idx) codes-length)
rlm@320 123 nil
rlm@320 124 (if (= (subvec mem idx (+ idx codes-length))
rlm@320 125 codes)
rlm@320 126 idx
rlm@320 127 (recur (inc idx)))))))
rlm@320 128 ([string]
rlm@320 129 (search-string @current-state string)))
rlm@313 130
rlm@314 131 (def text-address 0x9DC1)
rlm@314 132
rlm@314 133 (defn displayed-text
rlm@314 134 ([^SaveState state]
rlm@314 135 (character-codes->str
rlm@314 136 (subvec (vec (memory state))
rlm@314 137 text-address
rlm@314 138 (+ text-address 82))))
rlm@314 139 ([] (displayed-text @current-state)))
rlm@314 140
rlm@314 141 (defn scroll-text
rlm@314 142 ([script]
rlm@314 143 (delayed-difference
rlm@314 144 [:b] [:a :b] 25 displayed-text script))
rlm@314 145 ([n script]
rlm@314 146 (reduce (fn [script _]
rlm@314 147 (scroll-text script))
rlm@314 148 script
rlm@314 149 (range n))))
rlm@314 150
rlm@319 151 (defn end-text
rlm@319 152 ([script]
rlm@320 153 (->>
rlm@320 154 script
rlm@320 155 (do-nothing 150)
rlm@320 156 (play-moves [[:b]]))))
rlm@319 157
rlm@318 158 (defn delayed-improbability-search
rlm@318 159 "insert blank frames before calling script-fn until
rlm@318 160 metric returns true."
rlm@318 161 [delay metric script-fn script]
rlm@318 162 (loop [blanks 0]
rlm@318 163 (let [new-script
rlm@318 164 (->> script
rlm@318 165 (play-moves
rlm@318 166 (concat (repeat blanks [])))
rlm@318 167 script-fn)
rlm@318 168 future-state
rlm@318 169 (run-moves (second new-script)
rlm@318 170 (repeat delay []))
rlm@318 171 result (metric future-state)]
rlm@318 172 (if result
rlm@318 173 (do
rlm@318 174 (println "improbability factor:" blanks)
rlm@318 175 new-script)
rlm@318 176 (recur (inc blanks))))))
rlm@313 177
rlm@313 178 (defn critical-hit
rlm@313 179 "Put the cursor over the desired attack. This program will
rlm@313 180 determine the appropriate amount of blank frames to
rlm@313 181 insert before pressing [:a] to ensure that the attack is
rlm@313 182 a critical hit."
rlm@313 183 [script]
rlm@318 184 (delayed-improbability-search
rlm@318 185 400
rlm@318 186 #(search-string % "Critical")
rlm@318 187 (partial play-moves [[:a][]])
rlm@318 188 script))
rlm@313 189
rlm@313 190 (defn move-thru-grass
rlm@313 191 [direction script]
rlm@318 192 (delayed-improbability-search
rlm@318 193 600
rlm@318 194 #(nil? (search-string % "Wild"))
rlm@318 195 (partial move direction)
rlm@318 196 script))
rlm@313 197
rlm@313 198 (defn walk-thru-grass
rlm@313 199 [directions script]
rlm@313 200 (reduce (fn [script direction]
rlm@313 201 (move-thru-grass direction script))
rlm@313 202 script directions))
rlm@313 203
rlm@313 204 (defn slowly
rlm@313 205 [delay moves script]
rlm@313 206 (reduce
rlm@313 207 (fn [script move]
rlm@313 208 (->> script
rlm@313 209 (do-nothing delay)
rlm@313 210 (play-moves (vector move))))
rlm@313 211 script moves))
rlm@313 212
rlm@313 213 (defn multiple-times
rlm@313 214 ([n command args script]
rlm@313 215 (reduce (fn [script _]
rlm@313 216 (apply command (concat args [script])))
rlm@313 217 script
rlm@313 218 (range n)))
rlm@313 219 ([n command script]
rlm@313 220 (multiple-times n command [] script)))