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breed [trackers tracker] breed [people person] patches-own [ road density ] globals[ tx ty ] to startup ;; read the elevations from an external file ;; note that the file is formatted as a list ;; so we only have to read once into a local variable. file-open "try.txt" let patch-roads file-read file-close ;; transfer the data from the file into the sorted patches (foreach sort patches patch-roads [ [the-patch the-road] -> ask the-patch [ set road the-road ] ]) set-default-shape turtles "circle" setup end to setup clear-drawing clear-turtles create-trackers 1 [ setxy -71 96 ;;lxxx set color green set size 4] ;;lxxx create-people 1 [ setxy -21 -25 ;;lxxx set color red set size 4] ;;lxxx ask patches with [ road = 1] [set pcolor white ;;set people count turtles in-radius 30 ;;set dist distance turtle 0 ] reset-ticks end to goonce ask patches[ set density count people in-radius 5 ;;set pcolor density ] ask trackers[ let target max-one-of patches in-radius 10 [density] face target if any? people-here [ ;; if there are sheep here then eat one ask one-of people-here [die] ] fd 1 ] end to go ask patches with [pcolor = white] [ set density count people in-radius 5] ask trackers[ let target max-one-of patches in-radius 10 [density] face target if any? people-here [ ;; if there are sheep here then eat one ask one-of people-here [die] ] fd 1 ] ; ask turtle 0 [ ;; move-to one-of neighbors4 with [pcolor = white] ;;ask turtles [ show max-one-of turtles [distance myself] ] ;; let p max-one-of neighbors [patch-variable] ;;if [patch-variable] of p > patch-variable [ ;;face p ;;move-to p ;;] ;; uphill patch-variable uphill4 patch-variable ; move-to one-of neighbors4 with [pcolor = white] ; ] end
There is only one version of this model, created about 1 year ago by z ch.
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