1D collision detection

1DCollisionDetection

var collisionsExist = false;
rows.map(function(row){
	row.timebands.map(function(timeband){
		if(timeband !== $scope.timeband){
			var newTb = fixTimeband($scope.timeband), testTb = fixTimeband(timeband);
			
			// The new timeband starts before the test timeband starts, and ends after the test timeband ends
			if(newTb.to <= testTb.to && newTb.from >= testTb.from){
				collisionsExist = true;
			}

			// The new timeband begins before the test timeband starts, and ends after the test timeband ends
			if(newTb.from < testTb.from && newTb.to > testTb.to){
				collisionsExist = true;
			}

			// The new timeband begins before the end of the test timeband, and ends after the test timeband ends
			if(newTb.from < testTb.to && newTb.to > testTb.to){
				collisionsExist = true;
			}

			if(newTb.from < testTb.from && newTb.to > testTb.from){
				collisionsExist = true;
			}
		}
	});
});
return collisionsExist;