88 lines
3.0 KiB
JavaScript
88 lines
3.0 KiB
JavaScript
const Hyperparams = require("../../Hyperparameters");
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const Directions = require("../Directions");
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const CellStates = require("../Cell/CellStates");
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const Decision = {
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neutral: 0,
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retreat: 1,
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chase: 2,
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getRandom: function(){
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return Math.floor(Math.random() * 3);
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},
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getRandomNonNeutral: function() {
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return Math.floor(Math.random() * 2)+1;
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}
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}
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class Brain {
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constructor(owner){
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this.owner = owner;
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this.observations = [];
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// corresponds to CellTypes
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this.decisions = [];
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this.decisions[CellStates.empty.name] = Decision.neutral;
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this.decisions[CellStates.food.name] = Decision.chase;
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this.decisions[CellStates.wall.name] = Decision.neutral;
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this.decisions[CellStates.mouth.name] = Decision.neutral;
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this.decisions[CellStates.producer.name] = Decision.neutral;
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this.decisions[CellStates.mover.name] = Decision.neutral;
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this.decisions[CellStates.killer.name] = Decision.retreat;
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this.decisions[CellStates.armor.name] = Decision.neutral;
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this.decisions[CellStates.eye.name] = Decision.neutral;
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}
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randomizeDecisions(randomize_all=false) {
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// randomize the non obvious decisions
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if (randomize_all) {
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this.decisions[CellStates.food.name] = Decision.getRandom();
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this.decisions[CellStates.killer.name] = Decision.getRandom();
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}
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this.decisions[CellStates.mouth.name] = Decision.getRandom();
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this.decisions[CellStates.producer.name] = Decision.getRandom();
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this.decisions[CellStates.mover.name] = Decision.getRandom();
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this.decisions[CellStates.armor.name] = Decision.getRandom();
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this.decisions[CellStates.eye.name] = Decision.getRandom();
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}
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observe(observation) {
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this.observations.push(observation);
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}
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decide() {
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var decision = Decision.neutral;
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var closest = Hyperparams.lookRange + 1;
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var move_direction = 0;
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for (var obs of this.observations) {
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if (obs.cell == null || obs.cell.owner == this.owner) {
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continue;
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}
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if (obs.distance < closest) {
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// console.log(obs.cell.state)
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decision = this.decisions[obs.cell.state.name];
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// console.log(decision)
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move_direction = obs.direction;
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closest = obs.distance;
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}
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}
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this.observations = [];
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if (decision == Decision.chase) {
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this.owner.changeDirection(move_direction);
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return true;
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}
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else if (decision == Decision.retreat) {
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this.owner.changeDirection(Directions.getOppositeDirection(move_direction));
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return true;
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}
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return false;
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}
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mutate() {
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this.decisions[CellStates.getRandomName()] = Decision.getRandom();
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this.decisions[CellStates.empty.name] = Decision.neutral; // if the empty cell has a decision it gets weird
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}
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}
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Brain.Decision = Decision;
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module.exports = Brain; |