breed [cooperators cooperator] breed [defectors defector] breed [randos rando] breed [awesomes awesome] ; this will be the breed you modify links-own [ played-last-round? payoff-last-round strategy ] globals [ ;;number of turtles with each strategy num-S num-T ] turtles-own [ score partner-history ;;a list containing information about past interactions ;;with other turtles (indexed by WHO values) ] ;;;;;;;;;;;;;;;;;;;;;; ;;;Setup Procedures;;; ;;;;;;;;;;;;;;;;;;;;;; to setup ;; (for this model to work with NetLogo's new plotting features, ;; __clear-all-and-reset-ticks should be replaced with clear-all at ;; the beginning of your setup procedure and reset-ticks at the end ;; of the procedure.) __clear-all-and-reset-ticks make-turtles setup-common-variables setup-history-lists end to virus set a 4 set b 3 set c 8 set d 2 end to play-chicken set a -10 set b 1 set c -1 set d 0 end to hawk-dove set a 0 set b 5 set c 1 set d 3 end to hunter set a 4 set b 0 set c 3 set d 3 end to mod-hunter set a 4 set b 0 set c 4 set d 3 end to p-dilemma set a 1 set b -3 set c 3 set d -1 end to play-random set a (random 20) - 10 set b (random 20) - 10 set c (random 20) - 10 set d (random 20) - 10 end ;;initialize PARTNER-HISTORY list in all turtles to setup-history-lists let num-turtles count turtles let default-history [] ;;initialize the DEFAULT-HISTORY variable to be a list ;;create a list with NUM-TURTLE elements for storing partner histories repeat num-turtles [ set default-history (fput "U" default-history) ] ;;give each turtle a copy of this list for tracking partner histories ask turtles [ set partner-history default-history ] end to make-turtles let nearby-patch nobody create-cooperators 5 [ setup-cooperators ] create-defectors 5 [ setup-defectors ] create-randos 5 [ setup-randos ] create-awesomes 5 [ setup-awesomes ;you'll be calling your own setup function ] end ;;set the variables that all turtles share to setup-common-variables ask turtles [ set score 5 ] end to setup-cooperators set color white set shape "bird side" end to setup-defectors set color white set shape "monster" end to setup-randos set color white set shape "butterfly" end to setup-awesomes ;====================Your code goes here==================== ; TODO: consider making your turtles look awesome ;=====================End of your code====================== end ;;;;;;;;;;;;;;;;;;;;;;;; ;;;Runtime Procedures;;; ;;;;;;;;;;;;;;;;;;;;;;;; to go ask turtles [ if is-cooperator? self [update-cooperator] if is-defector? self [update-defector] if is-rando? self [update-rando] if is-awesome? self [update-awesome] ] play-a-round do-plotting layout tick end to play-a-round ask links [ let link-in-question self let n1 end1 let n2 end2 let strategy1 strategy let strategy2 "S" ask n2 [ ifelse out-link-neighbor? n1 [ ; print "ready to play" ; print n1 ; print n2 set strategy2 [strategy] of link ([who] of n2) ([who] of n1) ask link-in-question [set played-last-round? true set thickness 0.2 ] ] [ ask link-in-question [set played-last-round? false set thickness 0.1] ] ] if (played-last-round? = true) [ ifelse (strategy1 = "S") [ ifelse (strategy2 = "S") [ set payoff-last-round a ] [ set payoff-last-round b ] ] [ ifelse (strategy2 = "S") [ set payoff-last-round c ] [ set payoff-last-round d ] ] let payoff payoff-last-round ask n1 [ set score (score + payoff) set partner-history (replace-item ([who] of n2) partner-history strategy2) ; print partner-history ; print "----" ; print strategy1 ; print strategy2 ; print payoff ] ] ] end to update-awesome ;====================Your code goes here==================== ; TODO: for now your strategy is not that awesome, but it's not horrible either ; you pick another turtle at random to connect to and pick a random strategy ; try improving on this strategy create-link-to one-of other turtles with [not out-link-neighbor? self] [ set strategy one-of (list "S" "T") set color red ] ; if you're over your link budget, you drop the excess links if count my-out-links > 3 [ ask one-of my-out-links [die] ] ;=====================End of your code====================== end to update-cooperator ; create-link-to one-of other turtles with [not out-link-neighbor? self] [ ;connect indiscriminately and cooperate ; set strategy "S" ; set color red ; ] let candidate one-of other turtles with [not out-link-neighbor? self] ; on second thought only connect to ; people who haven't betrayed us in the past let candidate-last-strategy item ([who] of candidate) partner-history if ((candidate-last-strategy = "U") or (candidate-last-strategy = "S")) [ create-link-to candidate [ set color red set strategy "S" ] ] while [count my-out-links > 3] [ ;make sure I don't have more than 3 outlinks, as per rules ask one-of my-out-links [die] ] end to update-defector ; if any? my-out-links with [played-last-round?] [ ; ask one-of my-out-links with [played-last-round?] [die] ;avoid playing with same people in case they get wise to me ; ] create-link-to one-of other turtles [ ; pick the strategy with the higher payoff ifelse (a >= c) [set strategy "S" set color red][set strategy "T" set color blue] ] while [count my-out-links > 3] [ ; make sure I don't have any more outlinks, as per rules ask one-of my-out-links [die] ] end to update-rando let n1 self let n2 nobody if any? in-link-neighbors [ ; check if anyone has a link to me ask one-of in-link-neighbors [ set n2 self ] if (not out-link-neighbor? n2) [ ; if I'm not linking to them create-link-to n2 [ ; then I want to link to them so I can play set strategy one-of (list "S" "T") ;pick random strategy ifelse (strategy = "S") [set color red][set color blue] ; and color myself accordingly ] ] ] if any? out-link-neighbors [ ; if I have some out links ask one-of out-link-neighbors [ set n2 self ] if (not in-link-neighbor? n2) [ ; to turtles that are not pointing to me ask out-link-to n2 [die] ; then delete them ] ] while [count my-out-links > 3] [ ; make sure I don't have any more outlinks, as per rules ask one-of my-out-links [die] ] end to layout repeat 5 [layout-spring turtles links 0.2 4 0.9] end to do-plotting set-current-plot "strategy-count" ; count up strategies set-current-plot-pen "S" plot count links with [strategy = "S"] set-current-plot-pen "T" plot count links with [strategy = "T"] set-current-plot "scores by breed" ; display average cumulative scores by breed set-current-plot-pen "cooperators" plot mean [score] of cooperators set-current-plot-pen "defectors" plot mean [score] of defectors set-current-plot-pen "randos" plot mean [score] of randos set-current-plot-pen "awesomes" plot mean [score] of awesomes end @#$#@#$#@ GRAPHICS-WINDOW 303 8 733 459 10 10 20.0 1 10 1 1 1 0 1 1 1 -10 10 -10 10 1 1 1 ticks 30.0 BUTTON 8 19 86 62 NIL setup NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 85 19 174 62 NIL go T 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 174 19 260 63 go once go NIL 1 T OBSERVER NIL NIL NIL NIL 1 SLIDER 7 164 99 197 a a -10 10 1 0.5 1 NIL HORIZONTAL SLIDER 105 165 197 198 b b -10 10 -3 0.5 1 NIL HORIZONTAL SLIDER 7 200 99 233 c c -10 10 3 0.5 1 NIL HORIZONTAL SLIDER 103 201 197 234 d d -10 10 -1 0.5 1 NIL HORIZONTAL TEXTBOX 9 82 216 152 payoff matrix: a = payoff(S,S) for P1 and P2, d = payoff(T,T) for P1 and P2, b = payoff for playing S while other plays T, c = payoff for playing T while other plays S\n 11 0.0 1 PLOT 10 314 210 464 strategy-count Time No of links 0.0 10.0 0.0 10.0 true true "" "" PENS "S" 1.0 0 -2674135 true "" "" "T" 1.0 0 -13345367 true "" "" BUTTON 740 20 804 54 NIL virus NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 741 59 841 93 NIL hawk-dove NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 742 95 816 129 NIL hunter NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 743 132 865 166 NIL mod-hunter NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 212 255 282 288 NIL layout T 1 T OBSERVER NIL NIL NIL NIL 1 PLOT 745 256 1021 406 scores by breed NIL NIL 0.0 10.0 0.0 10.0 true true "" "" PENS "cooperators" 1.0 0 -16777216 true "" "" "defectors" 1.0 0 -7500403 true "" "" "randos" 1.0 0 -2674135 true "" "" "awesomes" 1.0 0 -955883 true "" "" BUTTON 37 255 187 288 prisoners' dilemma p-dilemma NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 744 169 823 202 chicken play-chicken NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 744 206 824 239 random play-random NIL 1 T OBSERVER NIL NIL NIL NIL 1 @#$#@#$#@ ## WHAT IS IT? A shell for competing turtles ## HOW IT WORKS Click 'SETUP' to initalize the turtles. Click 'GO' to have them form their network and play their game. Each player gets 5 turtles, the turtles accumulate scores according to the following payoffs Payoffs The game is symmetric and the payoffs are as follows | Player 2's action Player 1's | Action | S T ------------|----------------- S | a,a b,c ------------|----------------- T | c,b d,d ------------|----------------- In each round, each turtle can decide which links to keep and which to delete, as well as which strategy to play for each link. If two turtles have a bidirectional link, they will play a game with the strategies they assigned to their mutual links and receive the above payoffs which are added to their scores. In each round, the turtle updates its history with each parter (last-played strategy in their mutual games) Turtle breeds: 1. cooperators: Always select S. 2. defectors: Always select T. 3. randos: Randomly select S or T. 4. awesomes: You need to implement this. ## THE RULES A turtle can have at most 3 outgoing links. A turtle can use the information about what the payoffs a,b,c,d are and is also allowed to observe the overall network structure. It can use its history with other turtles (what the other players action was in games with them), but it cannot have access to other turtles' past or current strategy with turtles other than itself, breed, color, shape, etc. i.e. the only thing it is allowed to know about other turtles is the outcome of past mutual encounters and also the network structure (e.g. how many incoming and outgoing links the other turtle has). @#$#@#$#@ default true 0 Polygon -7500403 true true 150 5 40 250 150 205 260 250 airplane true 0 Polygon -7500403 true true 150 0 135 15 120 60 120 105 15 165 15 195 120 180 135 240 105 270 120 285 150 270 180 285 210 270 165 240 180 180 285 195 285 165 180 105 180 60 165 15 arrow true 0 Polygon -7500403 true true 150 0 0 150 105 150 105 293 195 293 195 150 300 150 bird false 0 Polygon -7500403 true true 135 165 90 270 120 300 180 300 210 270 165 165 Rectangle -7500403 true true 120 105 180 237 Polygon -7500403 true true 135 105 120 75 105 45 121 6 167 8 207 25 257 46 180 75 165 105 Circle -16777216 true false 128 21 42 Polygon -7500403 true true 163 116 194 92 212 86 230 86 250 90 265 98 279 111 290 126 296 143 298 158 298 166 296 183 286 204 272 219 259 227 235 240 241 223 250 207 251 192 245 180 232 168 216 162 200 162 186 166 175 173 171 180 Polygon -7500403 true true 137 116 106 92 88 86 70 86 50 90 35 98 21 111 10 126 4 143 2 158 2 166 4 183 14 204 28 219 41 227 65 240 59 223 50 207 49 192 55 180 68 168 84 162 100 162 114 166 125 173 129 180 bird side false 0 Polygon -7500403 true true 0 120 45 90 75 90 105 120 150 120 240 135 285 120 285 135 300 150 240 150 195 165 255 195 210 195 150 210 90 195 60 180 45 135 Circle -16777216 true false 38 98 14 box false 0 Polygon -7500403 true true 150 285 285 225 285 75 150 135 Polygon -7500403 true true 150 135 15 75 150 15 285 75 Polygon -7500403 true true 15 75 15 225 150 285 150 135 Line -16777216 false 150 285 150 135 Line -16777216 false 150 135 15 75 Line -16777216 false 150 135 285 75 bug true 0 Circle -7500403 true true 96 182 108 Circle -7500403 true true 110 127 80 Circle -7500403 true true 110 75 80 Line -7500403 true 150 100 80 30 Line -7500403 true 150 100 220 30 butterfly true 0 Polygon -7500403 true true 150 165 209 199 225 225 225 255 195 270 165 255 150 240 Polygon -7500403 true true 150 165 89 198 75 225 75 255 105 270 135 255 150 240 Polygon -7500403 true true 139 148 100 105 55 90 25 90 10 105 10 135 25 180 40 195 85 194 139 163 Polygon -7500403 true true 162 150 200 105 245 90 275 90 290 105 290 135 275 180 260 195 215 195 162 165 Polygon -16777216 true false 150 255 135 225 120 150 135 120 150 105 165 120 180 150 165 225 Circle -16777216 true false 135 90 30 Line -16777216 false 150 105 195 60 Line -16777216 false 150 105 105 60 car false 0 Polygon -7500403 true true 300 180 279 164 261 144 240 135 226 132 213 106 203 84 185 63 159 50 135 50 75 60 0 150 0 165 0 225 300 225 300 180 Circle -16777216 true false 180 180 90 Circle -16777216 true false 30 180 90 Polygon -16777216 true false 162 80 132 78 134 135 209 135 194 105 189 96 180 89 Circle -7500403 true true 47 195 58 Circle -7500403 true true 195 195 58 circle false 0 Circle -7500403 true true 0 0 300 circle 2 false 0 Circle -7500403 true true 0 0 300 Circle -16777216 true false 30 30 240 cow false 0 Polygon -7500403 true true 200 193 197 249 179 249 177 196 166 187 140 189 93 191 78 179 72 211 49 209 48 181 37 149 25 120 25 89 45 72 103 84 179 75 198 76 252 64 272 81 293 103 285 121 255 121 242 118 224 167 Polygon -7500403 true true 73 210 86 251 62 249 48 208 Polygon -7500403 true true 25 114 16 195 9 204 23 213 25 200 39 123 cylinder false 0 Circle -7500403 true true 0 0 300 dot false 0 Circle -7500403 true true 90 90 120 face happy false 0 Circle -7500403 true true 8 8 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Polygon -16777216 true false 150 255 90 239 62 213 47 191 67 179 90 203 109 218 150 225 192 218 210 203 227 181 251 194 236 217 212 240 face neutral false 0 Circle -7500403 true true 8 7 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Rectangle -16777216 true false 60 195 240 225 face sad false 0 Circle -7500403 true true 8 8 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Polygon -16777216 true false 150 168 90 184 62 210 47 232 67 244 90 220 109 205 150 198 192 205 210 220 227 242 251 229 236 206 212 183 fish false 0 Polygon -1 true false 44 131 21 87 15 86 0 120 15 150 0 180 13 214 20 212 45 166 Polygon -1 true false 135 195 119 235 95 218 76 210 46 204 60 165 Polygon -1 true false 75 45 83 77 71 103 86 114 166 78 135 60 Polygon -7500403 true true 30 136 151 77 226 81 280 119 292 146 292 160 287 170 270 195 195 210 151 212 30 166 Circle -16777216 true false 215 106 30 flag false 0 Rectangle -7500403 true true 60 15 75 300 Polygon -7500403 true true 90 150 270 90 90 30 Line -7500403 true 75 135 90 135 Line -7500403 true 75 45 90 45 flower false 0 Polygon -10899396 true false 135 120 165 165 180 210 180 240 150 300 165 300 195 240 195 195 165 135 Circle -7500403 true true 85 132 38 Circle -7500403 true true 130 147 38 Circle -7500403 true true 192 85 38 Circle -7500403 true true 85 40 38 Circle -7500403 true true 177 40 38 Circle -7500403 true true 177 132 38 Circle -7500403 true true 70 85 38 Circle -7500403 true true 130 25 38 Circle -7500403 true true 96 51 108 Circle -16777216 true false 113 68 74 Polygon -10899396 true false 189 233 219 188 249 173 279 188 234 218 Polygon -10899396 true false 180 255 150 210 105 210 75 240 135 240 house false 0 Rectangle -7500403 true true 45 120 255 285 Rectangle -16777216 true false 120 210 180 285 Polygon -7500403 true true 15 120 150 15 285 120 Line -16777216 false 30 120 270 120 leaf false 0 Polygon -7500403 true true 150 210 135 195 120 210 60 210 30 195 60 180 60 165 15 135 30 120 15 105 40 104 45 90 60 90 90 105 105 120 120 120 105 60 120 60 135 30 150 15 165 30 180 60 195 60 180 120 195 120 210 105 240 90 255 90 263 104 285 105 270 120 285 135 240 165 240 180 270 195 240 210 180 210 165 195 Polygon -7500403 true true 135 195 135 240 120 255 105 255 105 285 135 285 165 240 165 195 line true 0 Line -7500403 true 150 0 150 300 line half true 0 Line -7500403 true 150 0 150 150 monster false 0 Polygon -7500403 true true 75 150 90 195 210 195 225 150 255 120 255 45 180 0 120 0 45 45 45 120 Circle -16777216 true false 165 60 60 Circle -16777216 true false 75 60 60 Polygon -7500403 true true 225 150 285 195 285 285 255 300 255 210 180 165 Polygon -7500403 true true 75 150 15 195 15 285 45 300 45 210 120 165 Polygon -7500403 true true 210 210 225 285 195 285 165 165 Polygon -7500403 true true 90 210 75 285 105 285 135 165 Rectangle -7500403 true true 135 165 165 270 pentagon false 0 Polygon -7500403 true true 150 15 15 120 60 285 240 285 285 120 person false 0 Circle -7500403 true true 110 5 80 Polygon -7500403 true true 105 90 120 195 90 285 105 300 135 300 150 225 165 300 195 300 210 285 180 195 195 90 Rectangle -7500403 true true 127 79 172 94 Polygon -7500403 true true 195 90 240 150 225 180 165 105 Polygon -7500403 true true 105 90 60 150 75 180 135 105 plant false 0 Rectangle -7500403 true true 135 90 165 300 Polygon -7500403 true true 135 255 90 210 45 195 75 255 135 285 Polygon -7500403 true true 165 255 210 210 255 195 225 255 165 285 Polygon -7500403 true true 135 180 90 135 45 120 75 180 135 210 Polygon -7500403 true true 165 180 165 210 225 180 255 120 210 135 Polygon -7500403 true true 135 105 90 60 45 45 75 105 135 135 Polygon -7500403 true true 165 105 165 135 225 105 255 45 210 60 Polygon -7500403 true true 135 90 120 45 150 15 180 45 165 90 rabbit false 0 Polygon -7500403 true true 61 150 76 180 91 195 103 214 91 240 76 255 61 270 76 270 106 255 132 209 151 210 181 210 211 240 196 255 181 255 166 247 151 255 166 270 211 270 241 255 240 210 270 225 285 165 256 135 226 105 166 90 91 105 Polygon -7500403 true true 75 164 94 104 70 82 45 89 19 104 4 149 19 164 37 162 59 153 Polygon -7500403 true true 64 98 96 87 138 26 130 15 97 36 54 86 Polygon -7500403 true true 49 89 57 47 78 4 89 20 70 88 Circle -16777216 true false 37 103 16 Line -16777216 false 44 150 104 150 Line -16777216 false 39 158 84 175 Line -16777216 false 29 159 57 195 Polygon -5825686 true false 0 150 15 165 15 150 Polygon -5825686 true false 76 90 97 47 130 32 Line -16777216 false 180 210 165 180 Line -16777216 false 165 180 180 165 Line -16777216 false 180 165 225 165 Line -16777216 false 180 210 210 240 sheep 2 false 0 Polygon -7500403 true true 209 183 194 198 179 198 164 183 164 174 149 183 89 183 74 168 59 198 44 198 29 185 43 151 28 121 44 91 59 80 89 80 164 95 194 80 254 65 269 80 284 125 269 140 239 125 224 153 209 168 Rectangle -7500403 true true 180 195 195 225 Rectangle -7500403 true true 45 195 60 225 Rectangle -16777216 true false 180 225 195 240 Rectangle -16777216 true false 45 225 60 240 Polygon -7500403 true true 245 60 250 72 240 78 225 63 230 51 Polygon -7500403 true true 25 72 40 80 42 98 22 91 Line -16777216 false 270 137 251 122 Line -16777216 false 266 90 254 90 square false 0 Rectangle -7500403 true true 30 30 270 270 square 2 false 0 Rectangle -7500403 true true 30 30 270 270 Rectangle -16777216 true false 60 60 240 240 star false 0 Polygon -7500403 true true 151 1 185 108 298 108 207 175 242 282 151 216 59 282 94 175 3 108 116 108 target false 0 Circle -7500403 true true 0 0 300 Circle -16777216 true false 30 30 240 Circle -7500403 true true 60 60 180 Circle -16777216 true false 90 90 120 Circle -7500403 true true 120 120 60 tree false 0 Circle -7500403 true true 118 3 94 Rectangle -6459832 true false 120 195 180 300 Circle -7500403 true true 65 21 108 Circle -7500403 true true 116 41 127 Circle -7500403 true true 45 90 120 Circle -7500403 true true 104 74 152 triangle false 0 Polygon -7500403 true true 150 30 15 255 285 255 triangle 2 false 0 Polygon -7500403 true true 150 30 15 255 285 255 Polygon -16777216 true false 151 99 225 223 75 224 truck false 0 Rectangle -7500403 true true 4 45 195 187 Polygon -7500403 true true 296 193 296 150 259 134 244 104 208 104 207 194 Rectangle -1 true false 195 60 195 105 Polygon -16777216 true false 238 112 252 141 219 141 218 112 Circle -16777216 true false 234 174 42 Rectangle -7500403 true true 181 185 214 194 Circle -16777216 true false 144 174 42 Circle -16777216 true false 24 174 42 Circle -7500403 false true 24 174 42 Circle -7500403 false true 144 174 42 Circle -7500403 false true 234 174 42 turtle true 0 Polygon -10899396 true false 215 204 240 233 246 254 228 266 215 252 193 210 Polygon -10899396 true false 195 90 225 75 245 75 260 89 269 108 261 124 240 105 225 105 210 105 Polygon -10899396 true false 105 90 75 75 55 75 40 89 31 108 39 124 60 105 75 105 90 105 Polygon -10899396 true false 132 85 134 64 107 51 108 17 150 2 192 18 192 52 169 65 172 87 Polygon -10899396 true false 85 204 60 233 54 254 72 266 85 252 107 210 Polygon -7500403 true true 119 75 179 75 209 101 224 135 220 225 175 261 128 261 81 224 74 135 88 99 wheel false 0 Circle -7500403 true true 3 3 294 Circle -16777216 true false 30 30 240 Line -7500403 true 150 285 150 15 Line -7500403 true 15 150 285 150 Circle -7500403 true true 120 120 60 Line -7500403 true 216 40 79 269 Line -7500403 true 40 84 269 221 Line -7500403 true 40 216 269 79 Line -7500403 true 84 40 221 269 x false 0 Polygon -7500403 true true 270 75 225 30 30 225 75 270 Polygon -7500403 true true 30 75 75 30 270 225 225 270 @#$#@#$#@ NetLogo 5.2.0 @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ @#$#@#$#@ default 0.0 -0.2 0 0.0 1.0 0.0 1 1.0 0.0 0.2 0 0.0 1.0 link direction true 0 Line -7500403 true 150 150 90 180 Line -7500403 true 150 150 210 180 @#$#@#$#@ 0 @#$#@#$#@