Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Very simple, dumb AI for code challenge
var api = require('./API.js');
/**
* http://honeypot.softwareskills.se/#/contest/5587cf988a4c5edb08ffa049
*
* Executes a single step of the tank's programming. The tank can only move,
* turn, or fire its cannon once per turn. Between each update, the tank's
* engine remains running and consumes 1 fuel. This function will be called
* repeatedly until there are no more targets left on the grid, or the tank runs
* out of fuel.
*/
var currentPlan;
var visited = [];
var knownInfo = {};
var orientations = ['north', 'east', 'south', 'west'];
var currentOrientation = 2;
var currentPosition = {
x: 0,
y: 0
};
function buildMap(distances) {
// Based on current info and knowledge about the distance to things build
// a map.
}
function planMovementsBasedOnLidar() {
// We have no objective right now so
// build a plan based off of Lidar data
var distances = {
front: api.lidarFront(),
back: api.lidarBack(),
left: api.lidarLeft(),
right: api.lidarRight()
};
var movements;
var thisPlan = [];
// Turn in the longest direction
if (distances.front > 1) {
movements = distances.front;
}
else if (distances.right > 1) {
thisPlan.push('turnRight');
move = distances.right;
}
else if (distances.left > 1) {
thisPlan.push('turnLeft');
move = distances.left;
}
else {
// We want to head back behind us, so turn twice
thisPlan.push('turnRight');
thisPlan.push('turnRight');
move = distances.back;
}
for (var i = 0; i < movements - 1; i++) {
thisPlan.push('moveForward');
//thisPlan.push('seek');
}
return thisPlan;
}
exports.update = function() {
if (!currentPlan || currentPlan.length === 0) {
currentPlan = planMovementsBasedOnLidar();
}
else {
// Check for immeadiate targets that we should shoot as this
// always takes precedence over any movement plan.
if (api.identifyTarget()) {
// Cancel all plans, fire cannon then turn and recalc plans
api.fireCannon();
currentPlan = ['turnRight'];
}
else {
// Just execute on the movement plan
var action = currentPlan.shift();
console.log('Currently at (' +
currentPosition.x + ',' +
currentPosition.y + ') facing ' +
orientations[currentOrientation]);
if (action == 'turnRight') {
currentOrientation++;
if (currentOrientation > 3) {
currentOrientation = 0;
}
}
else if (action == 'turnRight') {
currentOrientation--;
if (currentOrientation < 0) {
currentOrientation = 3;
}
}
else if (action == 'moveForward') {
if (orientations[currentOrientation] == 'north') {
currentPosition.y++;
}
else if (orientations[currentOrientation] == 'south') {
currentPosition.y--;
}
else if (orientations[currentOrientation] == 'west') {
currentPosition.x--;
}
else if (orientations[currentOrientation] == 'east') {
currentPosition.x++;
}
visited.push(currentPosition.x+'_'+currentPosition.y);
}
console.log('Executing ' + action);
api[action]();
}
}
};
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment