seagull-game/pak/rules/upgrades/agility.xml

<?xml version="1.0" encoding="UTF-8"?>
<UpgradeRules xmlns="seagull:rules/upgrades">
    <TreeData>
        <Name>Agility Upgrades</Name>
        <PrimaryColor>#00aa00</PrimaryColor>
    </TreeData>
    <Upgrade>
        <Id>speed1</Id>
        <Name>Speedier Seagull</Name>
        <Requirements>
            <Food>100</Food>
            <Agility>1</Agility>
        </Requirements>
        <Modifiers>
            <Mod Id="up_speed1" Name="Upgrade: Speedier Seagull" Speed="5" />
        </Modifiers>
        <Desc>You become just a little bit faster, which makes it easier to steal things before your prey's previous owners notice you're coming.</Desc>
    </Upgrade>
    <Upgrade>
        <Id>speed2</Id>
        <Name>Greased Wings</Name>
        <Desc>Applying a thin coat of old french fry oil makes you much faster. Why do humans throw this stuff out?</Desc>
        <Requirements>
            <Require>speed1</Require>
            <Food>150</Food>
        </Requirements>
        <Modifiers>
            <Mod Id="up_speed2" Name="Upgrade: Greased Wings" Speed="10" />
        </Modifiers>
    </Upgrade>
    <Upgrade>
        <Id>theft_chance1</Id>
        <Name>Swooping Techniques</Name>
        <Modifiers>
            <Mod Id="up_theft_chance1" Name="Upgrade: Swooping Techniques" ChanceSteal="10" />
        </Modifiers>
        <Desc>It's all in the neck. The wings are just the steering wheel. You gain a bonus on all dice rolls for stealing.</Desc>
        <Requirements>
            <Food>100</Food>
            <Agility>1</Agility>
        </Requirements>
    </Upgrade>
    <Upgrade>
        <Id>theft_chance2</Id>
        <Name>The Element of Surprise</Name>
        <Desc>It's a lot easier to steal things if the previous owner doesn't see you coming. This technique gives you a bigger bonus on stealing rolls.</Desc>
        <Requirements>
            <Require>theft_chance1</Require>
            <Food>150</Food>
        </Requirements>
        <Modifiers>
            <Mod Id="up_theft_chance2" Name="Upgrade: The Element of Surprise" ChanceSteal="15" />
        </Modifiers>
    </Upgrade>
</UpgradeRules>