## Implement the Game Logic | Modern Ludo

Think of the game, we know that we have 4 teams in play. At a given time, all we need to see is where these 16 planes are. For the game engine, all it needs to know is the coordinates of these 16 planes. So we need to create another map which has a different value for each and every position a plane might be placed. So here it is:

function createValueMap() {
var mapxy = new Array();
mapxy.push([00, 00, 00, 00, 01, 02, 03, 04, 05, 06, 07, -4, 00, 00, 00]);
mapxy.push([00, 00, 00, 00, 52, 00, 00, 60, 00, 00, 08, 00, 00, 00, 00]);
mapxy.push([00, 00, 00, 00, 51, 00, 00, 61, 00, 00, 09, 00, 00, 00, 00]);
mapxy.push([-5, 00, 00, 00, 50, 00, 00, 62, 00, 00, 10, 00, 00, 00, 00]);
mapxy.push([46, 47, 48, 49, 00, 00, 00, 63, 00, 00, 00, 11, 12, 13, 14]);
mapxy.push([45, 00, 00, 00, 00, 00, 00, 64, 00, 00, 00, 00, 00, 00, 15]);
mapxy.push([44, 00, 00, 00, 00, 00, 00, 65, 00, 00, 00, 00, 00, 00, 16]);
mapxy.push([43, 90, 91, 92, 93, 94, 95, 99, 75, 74, 73, 72, 71, 70, 17]);
mapxy.push([42, 00, 00, 00, 00, 00, 00, 85, 00, 00, 00, 00, 00, 00, 18]);
mapxy.push([41, 00, 00, 00, 00, 00, 00, 84, 00, 00, 00, 00, 00, 00, 19]);
mapxy.push([40, 39, 38, 37, 00, 00, 00, 83, 00, 00, 00, 23, 22, 21, 20]);
mapxy.push([00, 00, 00, 00, 36, 00, 00, 82, 00, 00, 24, 00, 00, 00, -3]);
mapxy.push([00, 00, 00, 00, 35, 00, 00, 81, 00, 00, 25, 00, 00, 00, 00]);
mapxy.push([00, 00, 00, 00, 34, 00, 00, 80, 00, 00, 26, 00, 00, 00, 00]);
mapxy.push([00, 00, 00, -2, 33, 32, 31, 30, 29, 28, 27, 00, 00, 00, 00]);
return mapxy;
}

Initialize the routes of all planes:

var roles = ["red", "yellow", "blue", "green"];
var routs = []; var specialPos = [];

function initiatePlaneRouts() {
//fly over index -->17 ~ 29 **57 each~~
var redRout = [
46, 47, 48, 49, 50, 51, 52, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11,
12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 90, 91, 92, 93,
94, 95, 72];
var yellowRout = [
07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 01, 02, 03, 04, 60, 61, 62, 63,
64, 65, 82];
var blueRout = [
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 01, 02, 03,
04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 70, 71, 72, 73,
74, 75, 92];
var greenRout = [
33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
51, 52, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 80, 81, 82, 83,
84, 85, 62];
routs.push(redRout);
routs.push(yellowRout);
routs.push(blueRout);
routs.push(greenRout);
var redSpecial = [47, 51, 03, 07, 11, 15, 19, 23, 27, 31, 35, 39];
var yellowSpecial = [08, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52];
var blueSpecial = [21, 25, 29, 33, 37, 41, 45, 49, 01, 05, 09, 13];
var greenSpecial = [34, 38, 42, 46, 50, 02, 06, 10, 14, 18, 22, 26];
specialPos.push(redSpecial);
specialPos.push(yellowSpecial);
specialPos.push(blueSpecial);
specialPos.push(greenSpecial);
}

Now  it’s time to create a JS object to represent the status of the game. The ‘playStatus’ basically holds all the positions of the 16 planes and other information like the name of the player, the color of the player, whether it’s allowed to take off, etc. Read more