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@bobcgausa
Created September 8, 2014 22:18
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Corona JSON Loader/Manager
local json = require "json"
local assets={}
function assets.new(path)
local file = io.open( path, "r" )
local s = file:read( "*a" )
io.close( file )
return json.decode( s )
end --new
function assets.isInstance(self,name)
local where=string.find(self.class, ',' .. name .. ',', 1, true)
return where ~= nil
end --isInstance
function assets.isInstanceByName(struct,asset,name)
local where=string.find(struct[asset].class, ',' .. name .. ',', 1, true)
return where ~= nil
end --isInstanceByName
--imagesheet, paint, sound are persistent
function assets.get(struct, asset)
local o=struct[asset]
if o == nil then return nil end
if assets.isInstance(o, 'image') then
local t = display.newImage(o.path, 0, 0)
t.isVisible = false
return t
elseif assets.isInstance(o, 'text') then
if o.options.fontName == 'system' then
o.font = native.systemFont
elseif o.options.fontName == 'systemBold' then
o.font = native.systemFontBold
end --if
local t
if o.options['embossed'] ~= nil then
t = display.newEmbossedText(o.options)
else t = display.newText(o.options)
end --if
if o.options['fill'] ~= nil then
if type(o.options.fill)=='table' then
t:setFillColor(unpack(o.options.fill))
else t.fill = struct[o.options.fill].options
end --if
else
t:setFillColor(1,1,1)
end --if
if o.options['embossed'] ~= nil then
t:setEmbossColor(o.options.embossed)
end --if
t.isVisible = false
return t
elseif assets.isInstance(o, 'imagesheet') then
if o.object ~= nil then return o.object end
local t = graphics.newImageSheet(o.path, o.options)
o.object = t
return t
elseif assets.isInstance(o, 'paint') then
if o.object ~= nil then return o.object end
o.object = o.options
elseif assets.isInstance(o, 'emitter') then
t = display.newEmitter(o.options)
t.isVisible = false
return t
elseif assets.isInstance(o, 'sound') then
if o.object ~= nil then return o.object end
local t = audio.loadSound(o.path)
o.object = t
return t
elseif assets.isInstance(o, 'sprite') then
if assets.isInstance(o, 'array') then return nil
else
local t = assets.get(struct, o.sheet)
if t == nil then return nil end
local s = display.newSprite(t, o.options)
s.isVisible = false
return s
end --if
elseif assets.isInstance(o, 'shape') then
if assets.isInstance(o, 'rect') then
t = display.newRect(o.options.x, o.options.y, o.options.width, o.options.height)
elseif assets.isInstance(o, 'circle') then
t = display.newCircle(o.options.x, o.options.y, o.options.radius)
elseif assets.isInstance(o, 'roundedRect') then
t = display.newRoundedRect(o.options.x, o.options.y, o.options.width, o.options.height, o.options.corner)
elseif assets.isInstance(o, 'polygon') then
t = display.newPolygon(o.options.x, o.options.y, o.options.points)
elseif assets.isInstance(o, 'line') then
t = display.newLine(o.options.x, o.options.y, o.options.x2, o.options.y2)
if o.options['points']~=nil then t:append(unpack(o.options.points)) end
end --if
if o.options['fill']~=nil then
if type(o.options.fill)=='table' then
t:setFillColor(unpack(o.options.fill))
else t.fill = struct[o.options.fill].options
end --if
end --if
if o.options['stroke']~=nil then
if type(o.options.stroke)=='table' then
t:setStrokeColor(unpack(o.options.stroke))
else t.stroke = struct[o.options.stroke].options
end --if
end --if
if o.options['strokeWidth']~=nil then
t.strokeWidth = o.options.strokeWidth
end --if
t.isVisible = false
return t
end --if
return nil
end --get
function assets.get2(struct, assetSet, element)
local o=struct[assetSet]
if o == nil then return nil end
if assets.isInstance(o, 'sprite') then
if assets.isInstance(o, 'array') then
local s = o[element]
local t = assets.get(struct, s.sheet)
if t == nil then return nil end
s = display.newSprite(t, s.options)
s.isVisible = false
return s
end --if
end --if
return nil
end --get2
local function show(t,k) --asset structure name
if assets.isInstance(t[k], 'imagesheet') then
if t[k].object ~= nil then return t[k] end
t[k].object = graphics.newImageSheet(t[k].path, t[k].options)
elseif assets.isInstance(t[k], 'sprite') then
if assets.isInstance(t[k], 'array') then
local y=100
local g=display.newGroup()
for i=1,#t[k].names do
local s = t[k][t[k].names[i]]
s.object = display.newSprite(g,show(t, s.sheet).object, s.options)
s.object.x=display.contentCenterX s.object.y=y
y=y+100
s.object:play() --plays first option
end --for i
t[k].object = g
else
local s
s = display.newSprite(show(t,t[k].sheet).object, t[k].options)
s.x=display.contentCenterX s.y=display.contentCenterY
s:play() --plays first option
t[k].object = s
end --if
elseif assets.isInstance(t[k], 'image') then
t[k].object = display.newImage(t[k].path, 0, 0)
t[k].object.x=display.contentCenterX
t[k].object.y=display.contentCenterY
elseif assets.isInstance(t[k], 'emitter') then
t[k].object = display.newEmitter(t[k].options)
t[k].object.x=display.contentCenterX
t[k].object.y=display.contentCenterY+200
elseif assets.isInstance(t[k], 'paint') then
if t[k].object ~= nil then return t[k] end
t[k].object = t[k].options
elseif assets.isInstance(t[k], 'sound') then
local s = audio.loadSound(t[k].path)
audio.play(s)
t[k].object = s
elseif assets.isInstance(t[k], 'text') then
if t[k].options.fontName == 'system' then
t[k].font = native.systemFont
elseif t[k].options.fontName == 'systemBold' then
t[k].font = native.systemFontBold
end --if
if t[k].options['embossed'] ~= nil then
t[k].object = display.newEmbossedText(t[k].options)
else t[k].object = display.newText(t[k].options)
end --if
if t[k].options['fill'] ~= nil then
if type(t[k].options.fill)=='table' then
t[k].object:setFillColor(unpack(t[k].options.fill))
else t[k].object.fill = t[t[k].options.fill].options
end --if
else
t[k].object:setFillColor(1,1,1)
end
if t[k].options['embossed'] ~= nil then
t[k].object:setEmbossColor(t[k].options.embossed)
end --if
t[k].object.x=display.contentCenterX
t[k].object.y=display.contentCenterX
elseif assets.isInstance(t[k], 'shape') then
if assets.isInstance(t[k], 'rect') then
t[k].object = display.newRect(t[k].options.x, t[k].options.y, t[k].options.width, t[k].options.height)
elseif assets.isInstance(t[k], 'circle') then
t[k].object = display.newCircle(t[k].options.x, t[k].options.y, t[k].options.radius)
elseif assets.isInstance(t[k], 'roundedRect') then
t[k].object = display.newRoundedRect(t[k].options.x, t[k].options.y, t[k].options.width, t[k].options.height, t[k].options.corner)
elseif assets.isInstance(t[k], 'polygon') then
t[k].object = display.newPolygon(t[k].options.x, t[k].options.y, t[k].options.points)
elseif assets.isInstance(t[k], 'line') then
t[k].object = display.newLine(t[k].options.x, t[k].options.y, t[k].options.x2, t[k].options.y2)
if t[k].options['points']~=nil then t[k].object:append(unpack(t[k].options.points)) end
end --if
if t[k].options['fill']~=nil then
if type(t[k].options.fill)=='table' then
t[k].object:setFillColor(unpack(t[k].options.fill))
else t[k].object.fill = t[t[k].options.fill].options
end --if
end --if
if t[k].options['stroke']~=nil then
if type(t[k].options.stroke)=='table' then
t[k].object:setStrokeColor(unpack(t[k].options.stroke))
else t[k].object.stroke = t[t[k].options.stroke].options
end --if
end --if
if t[k].options['strokeWidth']~=nil then
t[k].object.strokeWidth = t[k].options.strokeWidth
end --if
t[k].object.x=display.contentCenterX
t[k].object.y=display.contentCenterX
end --if
return t[k]
end --show
function assets.show(struct)
local step=1
local object
local names={}
local myText = display.newText( "tap screen for next item", display.contentCenterX, 30, native.systemFont, 32 )
myText:setFillColor( 1, 0, 0 )
local myText2 = display.newText( "", 100, 50, native.systemFont, 32 )
myText2.x = display.contentCenterX
myText2:setFillColor( 1, 0, 0 )
local function onComplete( event )
local function listener( event )
display.remove(myText)
Runtime:removeEventListener('tap', onComplete )
end
if object ~= nil then
if not assets.isInstance(object, 'imagesheet') and not assets.isInstance(object, 'paint') then
if assets.isInstance(object, 'sound') then
audio.dispose(object.object)
else
if object.object~=nil then object.object:removeSelf() end
end
end
object.object=nil
object = nil
end --if
if step > #names then
myText.text="FINISHED." display.remove(myText2)
timer.performWithDelay( 3000, listener )
return
end
myText2.text=names[step]
object=show(struct,names[step])
step=step+1
end
Runtime:addEventListener('tap', onComplete )
local i=1
for k,v in pairs(struct) do
names[i]=k
i=i+1
end --for k,v
print(names)
end --show
return assets
{
"sheet_bat": {
"class": ",imagesheet,",
"path": "images/bat.png",
"options": {
"width": 32, "height": 48, "numFrames": 12,
"sheetContentWidth": 192, "sheetContentHeight": 96
}
},
"background_mountain": {
"class": ",image,",
"path": "images/exterior-parallaxBG1.png"
},
"text_paint": {
"class": ",paint,",
"options": [0, 1, 0]
},
"paint_gradient": {
"class": ",paint,",
"options": {
"type": "gradient",
"color1": [ 1, 0, 0.4 ],
"color2": [ 1, 0, 0, 0.2 ],
"direction": "down"
}
},
"paint_image": {
"class": ",paint,",
"options": {
"type": "image",
"filename": "images/exterior-parallaxBG1.png"
}
},
"sprite_bat": {
"class": ",sprite,array,",
"names": ["brown","gray"],
"brown": {
"class": ",sprite,",
"sheet": "sheet_bat",
"attributes": {
"color": "brown"
},
"options": [
{
"name": "fly",
"start": 8,
"count": 5,
"time": 750
},
{
"name": "sleep",
"start": 7,
"count": 1
}
]
},
"gray": {
"class": ",sprite,",
"sheet": "sheet_bat",
"attributes": {
"color": "gray"
},
"options": [
{
"name": "fly",
"start": 2,
"count": 5,
"time": 750
},
{
"name": "sleep",
"start": 1,
"count": 1
}
]
}
},
"text_credits": {
"class": ",text,",
"options": {
"text": "Bat Sprite: MoikMellah\nEnvironment art: Jetrel\nfrom opengameart.org\nunder CC-By 2.0",
"width": 190,
"height": 144,
"fontName": "system",
"fontSize": 12,
"fill": [1,0,0]
}
},
"text_high": {
"class": ",text,",
"options": {
"text": "High Scores",
"fontName": "systemBold",
"fontSize": 32,
"fill": "text_paint"
}
},
"text_high_gradient": {
"class": ",text,",
"options": {
"text": "High Scores",
"fontName": "systemBold",
"fontSize": 32,
"fill": "paint_gradient"
}
},
"text_high_image": {
"class": ",text,",
"options": {
"text": "High Scores",
"fontName": "systemBold",
"fontSize": 56,
"fill": "paint_image"
}
},
"text_high_embossed": {
"class": ",text,",
"options": {
"text": "High Scores",
"fontName": "systemBold",
"fontSize": 48,
"fill": [0, 0, 1],
"embossed": {
"highlight": { "r": 1, "g": 1, "b": 1 },
"shadow": { "r": 0.3, "g": 0.3, "b": 0.3 }
}
}
},
"shape_rect": {
"class": ",shape,rect,",
"options": {
"x": 100,
"y": 100,
"width": 200,
"height": 50,
"fill": [0, 0, 1],
"stroke": [1, 0, 1],
"strokeWidth": 4,
}
},
"shape_circle": {
"class": ",shape,circle,",
"options": {
"x": 100,
"y": 100,
"radius": 40,
"fill": [0, 1, 1],
"stroke": [1, 0.2, 1],
"strokeWidth": 4,
}
},
"shape_polygon": {
"class": ",shape,polygon,",
"options": {
"x": 0,
"y": 0,
"points": [0,-110, 27,-35, 105,-35, 43,16, 65,90, 0,45, -65,90, -43,15, -105,-35, -27,-35,],
"fill": "paint_gradient",
"stroke": [1, 0.2, 1],
"strokeWidth": 4,
}
},
"shape_line": {
"class": ",shape,line,",
"options": {
"x": 200,
"y": 90,
"x2": 227,
"y2": 165,
"points": [305,165, 243,216, 265,290, 200,245, 135,290, 157,215, 95,165, 173,165, 200,90],
"stroke": [1, 0.2, 1],
"strokeWidth": 4,
}
},
"sound_pop": {
"class": ",sound,",
"path": "sounds/pop.mp3"
},
"heart04_emitter": {
"class": ",emitter,",
"options": {
"startColorAlpha":1,"startParticleSizeVariance":20,"startColorGreen":1,"rotatePerSecond":360,"radialAcceleration":0,"yCoordFlipped":-1,"emitterType":0,"blendFuncSource":770,"finishColorVarianceAlpha":1,"rotationEnd":0,"startColorVarianceBlue":0,"rotatePerSecondVariance":0,"particleLifespan":1,"minRadius":300,"configName":"heart04","tangentialAcceleration":-0,"rotationStart":0,"startColorVarianceGreen":0,"speed":400,"minRadiusVariance":0,"finishColorVarianceBlue":0,"finishColorBlue":0,"finishColorGreen":0.05410007,"blendFuncDestination":1,"finishColorAlpha":1,"sourcePositionVariancex":84.97,"startParticleSize":30,"sourcePositionVariancey":231.62,"startColorRed":0.999996,"finishColorVarianceRed":0,"textureFileName":"images/assetT.png","startColorVarianceAlpha":1,"maxParticles":80,"finishColorVarianceGreen":0,"finishParticleSize":20,"duration":-1,"startColorVarianceRed":0,"finishColorRed":0,"gravityx":0,"maxRadiusVariance":0,"finishParticleSizeVariance":20,"gravityy":-0,"rotationEndVariance":0,"startColorBlue":1,"rotationStartVariance":0,"speedVariance":0,"radialAccelVariance":0,"textureImageData":"","tangentialAccelVariance":-0,"particleLifespanVariance":0,"angleVariance":-0,"angle":-90,"maxRadius":0
}
}
}
--go to professorcook.org/lua/json.zip for the whole project
display.setStatusBar(display.HiddenStatusBar)
require('mobdebug').start()
game = {score=0, count=30, assets={}, scenes={}}
as=require 'assets'
game.assets=as.new(system.pathForFile( "assetTest.json" ))
as.show(game.assets)
--[[local t =as.get(game.assets, 'heart04_emitter')
t.isVisible=true
t:translate(200,200)
t:scale(0.1,0.5)--]]
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