big upgrades to upgrade system

pak/rules/upgrades/agility.xml

@@ -7,6 +7,10 @@
     <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>
@@ -18,6 +22,7 @@
         <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" />
@@ -30,6 +35,10 @@
             <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>
@@ -37,6 +46,7 @@
         <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" />