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@blairanderson
Created July 12, 2013 19:19
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this is a 3d robot simulator
Plane2D = function() {
var directions = ["north", "east", "south", "west"];
this.rightOf = function(direction){
var currentIndex = directions.indexOf(direction);
return directions[(currentIndex+1 + directions.length) % directions.length]
}
this.leftOf = function(direction){
var currentIndex = directions.indexOf(direction);
return directions[(currentIndex-1 + directions.length) % directions.length]
}
this.advance = function(location, direction) {
if (direction == 'north') {
return Plane2D.make(
location.x,
location.y + 1
)
} else {
throw "unknown direction: " + direction
}
}
}
// Plane3D
Plane2D.origin = function() {
return {x: 0, y: 0}
}
Plane2D.make = function(x, y) {
return {x: x, y: y}
}
Plane3D = function() {
var directions = ["north", "east", "south", "west", "up"];
this.rightOf = function(direction){
var currentIndex = directions.indexOf(direction);
return directions[(currentIndex+1 + directions.length) % directions.length]
}
this.leftOf = function(direction){
var currentIndex = directions.indexOf(direction);
return directions[(currentIndex-1 + directions.length) % directions.length]
}
this.advance = function(location, direction) {
if (direction == 'up') {
return Plane3D.make(
location.x,
location.y,
location.z + 1
);
} else {
throw "unknown direction: " + direction;
}
};
};
// Plane3D
Plane3D.origin = function() {
return {x: 0, y: 0, z: 0};
};
Plane3D.make = function(x, y, z) {
return {x: x, y: y, z: z}
};
// Location
Location = function(plane, coordinates, direction){
this._plane = plane;
this._coordinates = coordinates;
this._direction = direction;
// .forward() // -> return a new location
this.forward = function() {
return new Location(
this._plane,
this._plane.advance(this._coordinates, this._direction),
this._direction
);
}
this.rotateRight = function() {
return new Location(
this._plane,
this._coordinates,
this._plane.rightOf(this._direction)
)
}
this.rotateLeft = function() {
return new Location(
this._plane,
this._coordinates,
this._plane.leftOf(this._direction)
)
}
}
Robot = function() {
this.location = new Location(
new Plane2D(),
Plane2D.origin(),
'north'
)
this.orient = function (direction){
this.location._direction = direction
};
this.at = function (l){
this.location = l
};
this.growWings = function () {
this.location = new Location(
new Plane3D,
Plane3D.origin(),
"north")
}
this.coordinates = function(){
return this.location._coordinates
}
this.advance = function () {
this.at(this.location.forward())
}
this.bearing = function (){
return this.location._direction
}
this.turnRight = function() {
this.location = this.location.rotateRight()
}
this.turnLeft = function() {
this.location = this.location.rotateLeft()
}
}
Simulator = function() {
}
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