MIHS-18P2 caseyellakillian tortles coral garbage
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globals [ max-tortles ] ; don't let tortle population grow too large ; tortle and trash are both breeds of turtle. breed [ tortles tortle ] ; tortle is its own plural, so we use "a-tortle" as the singular. breed [ trash a-trash ] turtles-own [ energy ] ; both trash and tortle have energy patches-own [ countdown ] to setup clear-all ifelse netlogo-web? [set max-tortles 10000] [set max-tortles 30000] ; Check model-version switch ; if we're not modeling coral, then the tortle don't need to eat to survive ; otherwise the coral's state of growth and growing logic need to be set up ifelse model-version = "tortles-trash-coral" [ ask patches [ set pcolor one-of [ pink blue ] ifelse pcolor = blue [ set countdown coral-regrowth-time ] [ set countdown random coral-regrowth-time ] ; initialize coral regrowth clocks randomly for blue patches ] ] [ ask patches [ set pcolor pink ] ] create-tortles initial-number-tortles ; create the tortle, then initialize their variables [ set shape "turtle" set color 52 set size 5 ; easier to see set label-color blue - 2 set energy random (2 * tortles-gain-from-food) setxy random-xcor random-ycor ] create-trash initial-number-trash ; create the trash, then initialize their variables [ set shape "garbage can" set color gray set size 4 ; easier to see set energy random (2 * trash-gain-from-food) setxy random-xcor random-ycor ] display-labels reset-ticks end to go ; stop the simulation of no trash or tortle if not any? turtles [ stop ] ; stop the model if there are no trash and the number of tortle gets very large if not any? trash and count tortles > max-tortles [ user-message "The tortle have inherited the earth" stop ] ask tortles [ move if model-version = "tortles-trash-coral" [ ; in this version, tortle eat coral, coral grows and it costs tortle energy to move set energy energy - 1 ; deduct energy for tortle only if running tortle-trash-coral model version eat-coral ; tortle eat coral only if running tortle-trash-coral model version death ; tortle die from starvation only if running tortle-trash-coral model version ] reproduce-tortles ; tortle reproduce at random rate governed by slider ] ask trash [ move set energy energy - 1 ; trash lose energy as they move eat-tortles ; trash eat a tortle on their patch ] if not any? tortles [ user-message "congrats you killed them all. https://www.seeturtles.org/billion-baby-turtles-donations/" stop ] if model-version = "tortles-trash-coral" [ ask patches [ grow-coral ] ] ; set coral count patches with [pcolor = pink] tick display-labels end to move ; turtle procedure rt random 50 lt random 50 fd 1 end to eat-coral ; tortle procedure ; tortle eat coral, turn the patch blue if pcolor = pink [ set pcolor blue set energy energy + tortles-gain-from-food ; tortle gain energy by eating ] end to reproduce-tortles ; tortle procedure if random-float 100 < tortles-reproduce [ ; throw "dice" to see if you will reproduce set energy (energy / 2) ; divide energy between parent and offspring hatch 1 [ rt random-float 360 fd 1 ] ; hatch an offspring and move it forward 1 step ] end to reproduce-trash ; trash procedure if random-float 100 < trash-reproduce [ ; throw "dice" to see if you will reproduce set energy (energy / 2) ; divide energy between parent and offspring hatch 1 [ rt random-float 360 fd 1 ] ; hatch an offspring and move it forward 1 step ] end to eat-tortles ; trash procedure let prey one-of tortles-here ; grab a random tortle if prey != nobody [ ; did we get one? if so, ask prey [ die ] ; kill it, and... set energy energy + trash-gain-from-food ; get energy from eating ] end to death ; turtle procedure (i.e. both trash nd tortle procedure) ; when energy dips below zero, die if energy < 0 [ die ] end to grow-coral ; patch procedure ; countdown on blue patches: if reach 0, grow some coral if pcolor = blue [ ifelse countdown <= 0 [ set pcolor pink set countdown coral-regrowth-time ] [ set countdown countdown - 1 ] ] end to-report coral ifelse model-version = "tortles-trash-coral" [ report patches with [pcolor = pink] ] [ report 0 ] end to display-labels ask turtles [ set label "" ] if show-energy? [ ask trash [ set label round energy ] if model-version = "tortle-trash-coral" [ ask tortles [ set label round energy ] ] ] end ; Copyright 1997 Uri Wilensky. ; See Info tab for full copyright and license.
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