122 lines
3.0 KiB
JavaScript
122 lines
3.0 KiB
JavaScript
let life=require("./life.js");
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let View=life.View;
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let actionTypes = Object.create(null);
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actionTypes.grow = function(critter) {
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critter.energy += 0.5;
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return true;
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};
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actionTypes.move = function(critter, vector, action) {
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let dest = this.checkDestination(action, vector);
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if (dest == null ||
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critter.energy <= 1 ||
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this.grid.get(dest) != null)
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return false;
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critter.energy -= 1;
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this.grid.set(vector, null);
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this.grid.set(dest, critter);
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return true;
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};
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actionTypes.eat = function(critter, vector, action) {
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let dest = this.checkDestination(action, vector);
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let atDest = dest != null && this.grid.get(dest);
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if (!atDest || atDest.energy == null)
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return false;
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critter.energy += atDest.energy;
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this.grid.set(dest, null);
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return true;
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};
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actionTypes.reproduce = function(critter, vector, action) {
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let baby = life.World.elementFromChar(this.legend,
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critter.originChar);
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let dest = this.checkDestination(action, vector);
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if (dest == null ||
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critter.energy <= 2 * baby.energy ||
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this.grid.get(dest) != null)
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return false;
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critter.energy -= 2 * baby.energy;
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this.grid.set(dest, baby);
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return true;
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};
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actionTypes.die = function(critter, action) {
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}
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class LifelikeWorld extends life.World {
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constructor(map,legend){
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super(map,legend);
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}
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letAct(critter, vector) {
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let action = critter.act(new View(this, vector));
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let handled = action &&
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action.type in actionTypes &&
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actionTypes[action.type].call(this, critter,
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vector, action);
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if (!handled) {
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critter.energy -= 0.2;
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if (critter.energy <= 0)
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this.grid.set(vector, null);
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}
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};
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}
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class Plant {
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constructor() {
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this.energy = 3 + Math.random() * 4;
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}
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act(view) {
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if (this.energy > 15) {
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let space = view.find(" ");
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if (space)
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return {type: "reproduce", direction: space};
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}
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if (this.energy < 20)
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return {type: "grow"};
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};
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}
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class PlantEater{
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constructor () {
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this.energy = 20;
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}
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act(view) {
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let space = view.find(" ");
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if (this.energy > 60 && space)
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return {type: "reproduce", direction: space};
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let plant = view.find("*");
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if (plant)
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return {type: "eat", direction: plant};
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if (space)
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return {type: "move", direction: space};
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};
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}
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class ExplodingBunnyRabbit extends PlantEater {
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constructor () {
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super()
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}
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act(view) {
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super.act(view);
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if(this.energy > 55) {
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if (Math.random() < 0.25) {
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return {type: "die"}
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}
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}
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}
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}
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exports.LifelikeWorld=LifelikeWorld;
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exports.BouncingCritter=life.BouncingCritter;
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exports.Wall=life.Wall;
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exports.PlantEater = PlantEater;
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exports.Plant = Plant;
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exports.actionTypes = actionTypes; |