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(function(){
var vec2
if ('window' in this) {
vec2 = window.vec2
}
else {
vec2 = require('./vec2')
FRONT = 0x1, BACK = 0x2, LEFT = 0x4, RIGHT = 0x8, FLOOR = 0x10, CEILING = 0x20
TOP = CEILING, BOTTOM = FLOOR
function sidesToString(sides){
var s = ""
if (sides & FRONT) s += "front "
if (sides & BACK) s += "back "
if (sides & LEFT) s += "left "
if (sides & RIGHT) s += "right "
if (sides & TOP) s += "top "
if (sides & BOTTOM) s += "bottom "
return s
}
}
var Rect = function (x0,y0,x1,y1){
if (x0 instanceof vec2) {
this.x = x0
this.y = y0
}
else if (x1 === undefined) {
this.x = new vec2(x0,x0)
this.y = new vec2(y0,y0)
}
else {
this.x = new vec2(x0,x1)
this.y = new vec2(y0,y1)
}
this.translation = new vec2(0,0)
this.sides = FRONT | BACK | LEFT | RIGHT
}
Rect.prototype.clone = function(){
return new Rect( this.x.clone(), this.y.clone() )
}
Rect.prototype.center = function(){
return new vec2(this.x.midpoint(), this.y.midpoint())
}
Rect.prototype.area = function(){
return this.x.length() * this.y.length()
}
Rect.prototype.magnitude = function(){
return dist(this.x.a, this.y.a, this.x.b, this.y.b)
}
Rect.prototype.maxDimension = function(){
return abs(this.width) > abs(this.height) ? this.width : this.height
}
Rect.prototype.mul = function(n){
this.x.mul(n)
this.y.mul(n)
return this
}
Rect.prototype.div = function(n){
this.x.div(n)
this.y.div(n)
return this
}
Rect.prototype.translate = function(translation){
var translation = translation || this.translation
this.x.abs().add(translation.a)
this.y.abs().add(translation.b)
this.translation.a = this.translation.b = 0
return this
}
Rect.prototype.resize = function(translation, sides){
var translation = translation || this.translation
sides = sides || translation.sides
if (sides & LEFT) {
this.x.a += translation.a
}
if (sides & RIGHT) {
this.x.b += translation.a
}
if (sides & FRONT) {
this.y.a += translation.b
}
if (sides & BACK) {
this.y.b += translation.b
}
this.translation.a = this.translation.b = 0
}
Rect.prototype.contains = function(x,y){
return this.x.contains(x) && this.y.contains(y)
}
Rect.prototype.containsDisc = function(x,y,r){
return this.x.containsDisc(x,r) && this.y.containsDisc(y,r)
}
Rect.prototype.intersects = function(r){
var corner_intersect = (this.x.b === r.x.a && this.y.b === r.y.a)
return this.x.intersects(r.x) && this.y.intersects(r.y) && ! corner_intersect
}
Rect.prototype.adjacent = function(r){
return this.x.adjacent(r.x) && this.y.adjacent(r.y)
}
Rect.prototype.eq = function(r){
return this.x.eq(r.x) && this.y.eq(r.y)
}
Rect.prototype.nearEdge = function (x, y, r) {
var edges = 0
if (x < this.x.a+r) {
edges |= LEFT
}
else if (x > this.x.b-r) {
edges |= RIGHT
}
if (y < this.y.a+r) {
edges |= FRONT
}
else if (y > this.y.b-r) {
edges |= BACK
}
return edges
}
Rect.prototype.width = function(){ return this.x.length() }
Rect.prototype.height = function(){ return this.y.length() }
Rect.prototype.toString = function(){
var sides = sidesToString(this.sides)
var s = "[" + this.x.toString() + " " + this.y.toString() + "] " + sides
return s
}
Rect.prototype.serialize = function(){
return { x: this.x.serialize(), y: this.y.serialize() }
}
Rect.prototype.quantize = function(n){
this.x.quantize(n)
this.y.quantize(n)
return this
}
Rect.prototype.split = function(r){
var rz = this
var splits = []
var sides = this.sides
var x_intervals = this.x.split( r.x, LEFT, RIGHT )
var y_intervals = this.y.split( r.y, FRONT, BACK )
x_intervals.forEach(function(x){
y_intervals.forEach(function(y){
var rn = new Rect(x[0], y[0])
rn.id = rz.id
rn.sides = ((x[1] | y[1]) & sides)
// if (r.intersects(rn)) {
// rn.sides = 0
// }
// if (r.x.b == rn.x.a) {
// rn.sides &= ~LEFT
// }
// if (rn.x.b == r.x.a) {
// rn.sides &= ~RIGHT
// }
// if (r.y.b == rn.y.a) {
// rn.sides &= ~FRONT
// }
// if (rn.y.b == r.y.a) {
// rn.sides &= ~BACK
// }
rn.focused = rz.focused
splits.push(rn)
})
})
return splits
}
if ('window' in this) {
window.Rect = Rect
}
else {
module.exports = Rect
}
})()
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