Browserify friendly sprite loader compatible with BrowserQuest sprite format
var loader = require'spritey/loader';var crel = require'crel';var Sprite = require'spritey/sprite';var sprites =require'../sprite/clotharmor.json'require'../sprite/sword1.json'require'../sprite/sword2.json'require'../sprite/axe.json'require'../sprite/goblin.json'require'../sprite/deathknight.json'require'../sprite/crab.json'maploader'sprite/2' scale: 2 stance: 'idle_right' ;var objects = ;var canvas = crel'canvas' width: 500 height: 500 ;var context = canvasgetContext'2d';var shell = require'game-shell';var spawnTimer;clearTimeoutspawnTimer;spawnTimer = setTimeoutobjectspush// clone the sprite so each can have different framessprite: sprites0 sprites2x: 0y: 48;50;shellbind'spawn' 'space';shellbind'walk_left' 'left' 'A'shellbind'walk_right' 'right' 'D'shellbind'walk_up' 'up' 'W'shellbind'walk_down' 'down' 'S'shellon'init'console.log'initialized';shellelementappendChildcanvas;;shellon'tick'var active = objectsobjectslength - 1;if shellwasDown'spawn'spawn;if ! activereturn;// clear the canvas, inefficient, but well it's a democontextclearRect0 0 canvaswidth canvasheight;if shellwasDown'walk_left'activex -=1;activespritewalk_left;if shellwasDown'walk_right'activex += 1;activespritewalk_right;if shellwasDown'walk_up'activey -= 1;activespritewalk_up;if shellwasDown'walk_down'activey += 1;activespritewalk_down;objectsforEachobjspritedrawcontext objx objy;;;spawn;
You can run this example using beefy:
git clonecd spriteynpm installbeefy examples/loader.js
It's important to understand that BrowserQuest sprites are designed to be used within a tiling 2d map engine, and thus have been designed to work with various tile sizes. As outlined in the BrowserQuest wiki, generally three versions of the sprites have been created:
- client/img/1: smallest sprites, meant for a map with 16x16 pixels tiles;
- client/img/2: medium sprites, meant for a map with 32x32 pixels tiles;
- client/img/3: bigest sprites, meant for a map with 48x48 pixels tiles
The loader example above demonstrates loading images for the
2 series images
which are designed to align against 32x32 map tiles.
var loader = require'spritey/loader';
var Sprite = require'spritey/Sprite';
Copyright (c) 2014 Damon Oehlman firstname.lastname@example.org
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