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/*
// get the list of media we want to place
var media_objs = $(".mediaContainer").toArray().map(function(el){
return $(el).data("media")
})
var walls = []
Scenery.randomize.add( media_objs, walls )
*/
Scenery.randomize = {};
// Given a list of media objects, generate their ideal dimensions
Scenery.randomize.get_dimensions = function (media_objs){
var media_list = media_objs.map(function(media){
var width, height
if (media.width > media.height) {
width = Math.min(DEFAULT_PICTURE_WIDTH, media.width)
height = media.height/media.width * width
}
else {
height = Math.min(DEFAULT_PICTURE_WIDTH, media.height)
width = media.width/media.height * height
}
return {
dimensions: new vec2( width, height ),
media: media,
}
})
return media_list
}
// Build the lookup of empty walls.
// Takes a list of walls to use, or undefined to use all empty walls.
// Returns a lookup of walls to use, keyed by wall ID.
Scenery.randomize.get_empty_walls = function(wall_list){
// get a list of all walls
var walls = {}
(wall_list || Walls).forEach(function(wall){
walls[wall.id] = wall
})
// remove the walls that already have stuff on them
if (! wall_list) {
Scenery.forEach(function(scenery){
if (scenery.was_randomly_placed) {
// remove it and reuse this wall?
Scenery.remove( scenery.id )
}
else {
delete walls[scenery.wall.id]
}
})
}
return walls
}
// Randomly place a set of media objects on empty walls.
// Only one object per wall will be added.
Scenery.randomize.add = function (media_objs, wall_list) {
var media_list = Scenery.randomize.get_dimensions(media_objs)
var walls = Scenery.randomize.get_empty_walls(wall_list)
var wall_ids = _.keys(walls)
if (! wall_ids.length) { return }
// randomize walls
shuffle(wall_ids)
// assign each of the media to the walls, until we run out of either
media_list.all(function(media){
// bail if we're out of walls
if (wall_ids.length == 0) { return false }
var i, fits = -1
for (i = 0; i < wall_ids.length; i++) {
if (walls[wall_ids[i]].surface.fits(media.dimensions)) {
fits = i
break
}
}
if (fits != -1) {
var wall = walls[wall_ids[fits]]
wall_ids.splice(fits, 1)
var scenery = Scenery.add({
media: media.media,
wall: wall,
index: 0,
})
scenery.was_randomly_placed = true
}
else {
// artwork won't fit anywhere??
}
return true
})
}
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