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@atduskgreg

atduskgreg/main.js

Created Oct 12, 2020
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const ApeECS = require('ape-ecs');
class Position extends ApeECS.Component {
constructor(){
super();
this.x = 0;
this.y = 0;
}
init(values)
{
this.x = values.x;
this.y = values.y;
}
}
class Destination extends ApeECS.Component {
constructor(){
super();
this.x = 0;
this.y = 0;
}
init(values)
{
this.x = values.x;
this.y = values.y;
}
}
class Dimension extends ApeECS.Component {
constructor(){
super();
this.width = 0;
this.height = 0;
}
}
class Display extends ApeECS.Component {
constructor(){
super();
this.sprite = "@";
}
init(values)
{
this.sprite = values.sprite;
}
}
class PathFind extends ApeECS.System {
init(){
this.pathfindersQuery = this.createQuery().fromAll("Position", "Destination").persist();
}
update(currentTick){
const pathfinders = this.pathfindersQuery.execute();
for(const pathfinder of pathfinders){
const position = pathfinder.getOne("Position");
const destination = pathfinder.getOne("Destination");
let vec = {x: 0, y: 0};
if(destination.x > position.x)
{
vec.x = 1;
}
else if(destination.x < position.x){
vec.x = -1;
}
if(destination.y > position.y)
{
vec.y = 1;
}
else if(destination.y < position.y){
vec.y = -1;
}
position.x = position.x + vec.x;
position.y = position.y + vec.y;
}
}
}
class DebugDisplay extends ApeECS.System {
init(){
this.drawablesQuery = this.createQuery().fromAll("Display", "Position").persist();
this.gameMap = this.world.getEntity("GameMap");//<-- this doesn't work
}
update(currentTick){
const drawables = this.drawablesQuery.execute();
let result = "<table cellspacing='0' cellpadding='0'>";
console.log(this.gameMap);
for(var col = 0; col < 10; col++)
// for(var col = 0; col < this.map.width; col++) <--- Want to do this
{
result = result + "<tr>";
for(var row = 0; row < 20; row++)
// for(var row = 0; row < this.map.height; row++) <--- Want to do this
{
result = result + "<td id='"+col+"x"+row+"'>&nbsp;</td>";
}
result = result + "</tr>";
}
result = result + "</table>";
document.getElementById("display").innerHTML = result;
for(const drawable of drawables){
const position = drawable.getOne("Position");
const display = drawable.getOne("Display");
document.getElementById(position.x+"x"+position.y).innerHTML = document.getElementById(position.x+"x"+position.y).innerHTML + " " +display.sprite;
}
}
}
const world = new ApeECS.World();
world.registerComponent(Position);
world.registerComponent(Destination);
world.registerComponent(Dimension);
world.registerComponent(Display);
world.registerSystem("pathfinder", PathFind);
world.registerSystem("debugDisplay", DebugDisplay);
const GameMap = world.createEntity({
id : 'GameMap', // <-- why isn't this being found?
c : {
Dimension : {
width : 10,
height : 20
}
}
});
const mover = world.createEntity({
id : 'player',
c : {
Position : {
x : 0,
y : 0
},
Destination : {
x : 7,
y : 12
},
Display : {
sprite : "👨"
}
}
});
const destination = world.createEntity({
id : 'dest',
c : {
Position : {
x : 7,
y : 12
},
Display : {
sprite : "x"
}
}
});
Game = {
update : function()
{
world.runSystems("pathfinder");
world.runSystems("debugDisplay");
}
}
module.exports.Game = Game;
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