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diff --git a/test/02-test-rect.js b/test/02-test-rect.js
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+var assert = require("assert")
+var vec = require("../public/assets/javascripts/rectangles/models/vec2.js")
+var Rect = require("../public/assets/javascripts/rectangles/models/rect.js")
+var FRONT = 0x1, BACK = 0x2, LEFT = 0x4, RIGHT = 0x8, FLOOR = 0x10, CEILING = 0x20
+var ALL = FRONT | BACK | LEFT | RIGHT
+
+describe('rect', function(){
+ describe('#intersects()', function(){
+ var rect = new Rect(0, 0, 10, 10)
+
+ it('intersects itself', function(){
+ assert.equal(true, rect.intersects( new Rect(0, 0, 10, 10) ));
+ })
+ it('intersects more wide', function(){
+ assert.equal(true, rect.intersects( new Rect(0, 0, 5, 10) ));
+ })
+ it('intersects less wide', function(){
+ assert.equal(true, rect.intersects( new Rect(0, 0, 15, 10) ));
+ })
+ it('intersects more tall', function(){
+ assert.equal(true, rect.intersects( new Rect(0, 0, 10, 5) ));
+ })
+ it('intersects less tall', function(){
+ assert.equal(true, rect.intersects( new Rect(0, 0, 10, 15) ));
+ })
+ it('intersects if right-adjacent', function(){
+ assert.equal(true, rect.intersects( new Rect(10, 0, 20, 10) ));
+ })
+ it('intersects if bottom-adjacent', function(){
+ assert.equal(true, rect.intersects( new Rect(0, 10, 10, 20) ));
+ })
+ it('does not intersect if to the right', function(){
+ assert.equal(false, rect.intersects( new Rect(20, 0, 40, 10) ));
+ })
+ it('does not intersect if beneath', function(){
+ assert.equal(false, rect.intersects( new Rect(0, 20, 10, 40) ));
+ })
+ /*
+ it('does not intersect if corners intersect', function(){
+ assert.equal(false, rect.intersects( new Rect(10, 10, 20, 20) ));
+ })
+ */
+
+ })
+
+ var rect = new Rect( new vec(1,4), new vec(1,4) )
+
+ var east_in = new Rect( new vec(2,3), new vec(1,4) )
+ var east_edge = new Rect( new vec(2,4), new vec(1,4) )
+ var east = new Rect( new vec(2,5), new vec(1,4) )
+
+ var south_in = new Rect( new vec(1,4), new vec(2,3) )
+ var south_edge = new Rect( new vec(1,4), new vec(2,4) )
+ var south = new Rect( new vec(1,4), new vec(2,5) )
+
+ var corner = new Rect( new vec(3,5), new vec(3,5) )
+
+ function sides (s) {
+ return s.reduce(function(prev, curr){
+ return prev | curr.sides
+ }, 0)
+ }
+ /*
+ console.log(s0.map(function(r){ return r.toString() }))
+ console.log(s1.map(function(r){ return r.toString() }))
+ */
+
+ describe('#split(rect, east)', function(){
+ var s0 = rect.split(east)
+ var s1 = east.split(rect)
+
+ it('splits on all 4 sides', function(){
+ assert.equal(ALL, sides(s0) | sides(s1))
+ })
+ it('rect is front/back/left', function(){
+ assert.equal(FRONT | BACK | LEFT, sides(s0))
+ })
+ it('east is front/back/right', function(){
+ assert.equal(FRONT | BACK | RIGHT, sides(s1))
+ })
+ })
+
+ describe('#split(rect, east_in)', function(){
+ var s0 = rect.split(east_in)
+ var s1 = east_in.split(rect)
+ it('splits on all 4 sides', function(){
+ assert.equal(ALL, sides(s0) | sides(s1))
+ })
+ it('rect is has all sides', function(){
+ assert.equal(ALL, sides(s0))
+ })
+ it('east_in only has front/back', function(){
+ assert.equal(FRONT | BACK, sides(s1))
+ })
+ })
+
+ describe('#split(rect, east_edge)', function(){
+ var s0 = rect.split(east_edge)
+ var s1 = east_edge.split(rect)
+
+ it('has no degenerate vectors', function(){
+ s0.forEach(function(r){
+ assert.notEqual(0, r.x.magnitude())
+ assert.notEqual(0, r.y.magnitude())
+ })
+ s1.forEach(function(r){
+ assert.notEqual(0, r.x.magnitude())
+ assert.notEqual(0, r.y.magnitude())
+ })
+ })
+ it('splits on all 4 sides', function(){
+ assert.equal(ALL, sides(s0) | sides(s1))
+ })
+ it('rect is front/back/left', function(){
+ assert.equal(ALL, sides(s0))
+ })
+ it('east is front/back/right', function(){
+ assert.equal(FRONT | BACK | RIGHT, sides(s1))
+ })
+ })
+
+ describe('#split(rect, south)', function(){
+ var s0 = rect.split(south)
+ var s1 = south.split(rect)
+
+ it('splits on all 4 sides', function(){
+ assert.equal(ALL, sides(s0) | sides(s1))
+ })
+ it('rect is front/left/right', function(){
+ assert.equal(FRONT | LEFT | RIGHT, sides(s0))
+ })
+ it('south is back/left/right', function(){
+ assert.equal(BACK | LEFT | RIGHT, sides(s1))
+ })
+ })
+
+ describe('#split(rect, south_in)', function(){
+ var s0 = rect.split(south_in)
+ var s1 = south_in.split(rect)
+ it('splits on all 4 sides', function(){
+ assert.equal(ALL, sides(s0) | sides(s1))
+ })
+ it('rect is has all sides', function(){
+ assert.equal(ALL, sides(s0))
+ })
+ it('south_in only has left/right', function(){
+ assert.equal(LEFT | RIGHT, sides(s1))
+ })
+ })
+
+ describe('#split(rect, south_edge)', function(){
+ var s0 = rect.split(south_edge)
+ var s1 = south_edge.split(rect)
+
+ it('has no degenerate vectors', function(){
+ s0.forEach(function(r){
+ assert.notEqual(0, r.x.magnitude())
+ assert.notEqual(0, r.y.magnitude())
+ })
+ s1.forEach(function(r){
+ assert.notEqual(0, r.x.magnitude())
+ assert.notEqual(0, r.y.magnitude())
+ })
+ })
+ it('splits on all 4 sides', function(){
+ assert.equal(ALL, sides(s0) | sides(s1))
+ })
+ it('rect has all sides', function(){
+ assert.equal(ALL, sides(s0))
+ })
+ it('south is back/left/right', function(){
+ assert.equal(BACK | LEFT | RIGHT, sides(s1))
+ })
+ })
+
+ describe('#split(rect, corner)', function(){
+ var s0 = rect.split(corner)
+ var s1 = corner.split(rect)
+
+ it('rect splits on all 4 sides', function(){
+ assert.equal(ALL, sides(s0))
+ })
+ it('corner splits on all 4 sides', function(){
+ assert.equal(ALL, sides(s1))
+ })
+
+ var rect_map = {}
+ var corner_map = {}
+ var rect_state = s0.forEach(function(r){
+ rect_map[r.sides] = rect_map[r.sides] || []
+ rect_map[r.sides].push(r)
+ })
+ var corner_state = s1.forEach(function(r){
+ corner_map[r.sides] = corner_map[r.sides] || []
+ corner_map[r.sides].push(r)
+ })
+
+ it('rect contains a rect with no sides', function(){
+ assert.equal(1, rect_map[0].length)
+ })
+ it('corner contains a rect with no sides', function(){
+ assert.equal(1, corner_map[0].length)
+ })
+ it('rect and corner overlap', function(){
+ assert.equal(String(rect_map[0][0]), String(corner_map[0][0]))
+ })
+
+ })
+
+})
+
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