Texturepacker template for Corona to add support for sequencedata, based on the folder structure.

corona-custom.lua

-- created with TexturePacker (http://www.codeandweb.com/texturepacker)
--
-- {{smartUpdateKey}}
--
-- local sheetInfo = require("mysheet")
-- local myImageSheet = graphics.newImageSheet( "mysheet.png", sheetInfo:getSheet() )
-- local sprite = display.newSprite( myImageSheet , {frames={sheetInfo:getFrameIndex("sprite")}} )
--
{% load filter %}

local SheetInfo = {}

SheetInfo.sheet =
{
    frames = {{% for sprite in allSprites %}
        {
            x={{sprite.frameRect.x}},
            y={{sprite.frameRect.y}},
            width={{sprite.frameRect.width}},
            height={{sprite.frameRect.height}},{% if sprite.trimmed %}
            sourceX = {{sprite.sourceRect.x}},
            sourceY = {{sprite.sourceRect.y}},
            sourceWidth = {{sprite.untrimmedSize.width}},
            sourceHeight = {{sprite.untrimmedSize.height}}{% endif %}
        },{% endfor %}
    },
    
    sheetContentWidth = {{texture.size.width}},
    sheetContentHeight = {{texture.size.height}}
}

SheetInfo.frameIndex =
{{% for sprite in allSprites %}
    ["{{sprite.trimmedName}}"] = {{ forloop.counter }},{% endfor %}
}

SheetInfo.sequenceData =
{{% for sprite in allSprites %}{% if sprite.trimmedName|IsNotCurrent %}},
        time=120 
    }{% endif %}{% if sprite.trimmedName|CheckNotUsed %}
    {   name={{sprite.trimmedName|GetSequenceName}},
        frames={ {% endif %} {{forloop.counter }}, {% if forloop.last %}}, 
        time=120 
    }{% endif %}{% endfor %}
}

function SheetInfo:getSheet()
    return self.sheet;
end

function SheetInfo:getFrameIndex(name)
    return self.frameIndex[name];
end

function SheetInfo:getSequenceData()
    return self.sequenceData;
end

return SheetInfo

exporter.xml

<exporter version="1.0">
    <!-- identifier of the exporter -->
    <name>corona-custom</name>
	
    <!-- display name of the exporter for the combo box -->
    <displayName>Corona SDK Custom</displayName>
	
    <!-- description of the exporter -->
    <description>Exporter for Corona SDK using image sheet format.</description>

    <!-- exporter version -->
    <version>1.0</version>
	
    <!-- currently only one file allowed - more to come with update -->
    <files>
        <file>
            <!-- name of this file variable -->
            <name>lua</name>

            <!-- human readable name (for GUI) -->
            <displayName>Corona SDK lua file</displayName>

            <!-- file extension for the file -->
            <fileExtension>lua</fileExtension>

            <!-- description what the file contains, used in tooltips in the GUI -->
            <description>Lua file for CoronaSDK</description>

            <!-- name of the template file -->
            <template>corona-custom.lua</template>
        </file>
    </files>

    <!-- target framework supports trimming -->
    <supportsTrimming>true</supportsTrimming>

    <!-- target framework supports rotated sprites -->
    <supportsRotation>false</supportsRotation>

    <!-- rotated sprites direction (cw/ccw) -->
    <rotationDirection>cw</rotationDirection>

    <!-- supports npot sizes -->
    <supportsNPOT>true</supportsNPOT>

    <!-- supports file name stripping (remove .png etc) -->
    <supportsTrimSpriteNames>yes</supportsTrimSpriteNames>

    <!-- supports texure subpath -->
    <supportsTextureSubPath>yes</supportsTextureSubPath>

</exporter>

filter.qs

previousSequenceName = "";
currentSequenceName = "";
 
var CheckNotUsed = function(input)
{
	var rawInput = input.rawString();
	var tempName = rawInput.split("/");
	currentSequenceName = tempName[0]

	if( previousSequenceName == "" )
	{
		previousSequenceName = currentSequenceName;
		return "true";
	}
	else if( previousSequenceName == currentSequenceName )
	{
		return "";
	}
	else
	{
		previousSequenceName = currentSequenceName;
		return "true";
	}

    return "";   // return empty string
};
CheckNotUsed.filterName = "CheckNotUsed";
Library.addFilter("CheckNotUsed");

var GetSequenceName = function(input)
{
    return currentSequenceName; // perform calculation, return result as string
};
GetSequenceName.filterName = "GetSequenceName";
Library.addFilter("GetSequenceName");

var IsNotCurrent = function(input)
{
	var rawInput = input.rawString();
	var tempName = rawInput.split("/");
	tempSequenceName = tempName[0]

	if( currentSequenceName == "" )
	{
		return "";
	}
	else if( currentSequenceName == tempSequenceName )
	{
		return "";
	}

    return "true" // perform calculation, return result as string
};
IsNotCurrent.filterName = "IsNotCurrent";
Library.addFilter("IsNotCurrent");