diff --git a/clean.sh b/clean.sh
new file mode 100644
index 0000000..2008a0f
--- /dev/null
+++ b/clean.sh
@@ -0,0 +1 @@
+rm -rf src client.mappings client.jar client.txt
\ No newline at end of file
diff --git a/create-branch.sh b/create-branch.sh
index 9b1fd6c..01a0923 100755
--- a/create-branch.sh
+++ b/create-branch.sh
@@ -2,50 +2,11 @@
 
 # USAGE: bash create-branch.sh <version> <branch_flags>
 
-mc_version_manifest='https://launchermeta.mojang.com/mc/game/version_manifest.json'
-enigma='java -jar enigma/enigma-cli/build/libs/enigma-cli-0.21+local-all.jar'
-
-# check dependencies. this script requires jq
-if [ $(dpkg-query -W -f='${Status}' jq 2>/dev/null | grep -c "ok installed") -eq 0 ];
-then
-	echo "'jq' is not installed, run 'sudo apt-get install jq' to use this script"
-	exit
-fi
-
 # new branch
 echo "Creating branch '$1'"
 git branch -D $1 || true
 git checkout $2 $1
 
-# find our version.json file
-echo 'Reading version_manifest.json...'
-json_file=$(curl -s $mc_version_manifest | jq -r --arg version $1 '.versions[] | select(.id == $version).url')
-
-# find jar and mappings url
-echo "Reading $1.json..."
-json_file_contents=$(curl -s $json_file)
-client_jar=$(echo $json_file_contents | jq -r '.downloads.client.url')
-client_mappings=$(echo $json_file_contents | jq -r '.downloads.client_mappings.url')
-
-# download client.jar
-echo "Downloading client.jar..."
-curl -# -o client.jar $client_jar
-
-# download client.txt
-echo "Downloading ProGuard mappings: client.txt..."
-curl -# -o client.txt $client_mappings
-
-# remove current src directory
-rm -rf src
-
-echo "Converting ProGuard mappings to Engima mappings: client.mappings..."
-$enigma convert-mappings proguard client.txt enigma_file client.mappings
-
-mkdir src
-
-echo "Decompiling client.jar..."
-$enigma decompile procyon client.jar src client.mappings
-
 echo "Committing changes..."
 git add src
 git add client.txt
diff --git a/create-branches.sh b/create-branches.sh
index f1230bb..cf8ae5a 100755
--- a/create-branches.sh
+++ b/create-branches.sh
@@ -4,6 +4,9 @@ branch_flags=--orphan
 
 cat versions.txt | while read line
 do
+  ./clean.sh
+  ./setup-mappings.sh $line
+  ./decompile-mc.sh
   ./create-branch.sh $line $branch_flags
   branch_flags=-b
 done
diff --git a/decompile-mc.sh b/decompile-mc.sh
new file mode 100644
index 0000000..b793328
--- /dev/null
+++ b/decompile-mc.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+# clear out current src directory
+rm -rf src
+mkdir src
+
+echo "Decompiling client.jar..."
+#procyon, cfr
+./enigma.sh decompile procyon client.jar src client.mappings
+
diff --git a/enigma.sh b/enigma.sh
new file mode 100644
index 0000000..ae54ef6
--- /dev/null
+++ b/enigma.sh
@@ -0,0 +1,4 @@
+# TODO: at what version does this start giving snowmans.
+# TODO: does cfr decompiler also give snowmans 
+
+java -jar enigma/enigma-cli/build/libs/enigma-cli-0.21+local-all.jar $@
\ No newline at end of file
diff --git a/setup-mappings.sh b/setup-mappings.sh
new file mode 100644
index 0000000..4e31348
--- /dev/null
+++ b/setup-mappings.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+# USAGE: bash setup-mappings.sh <version>
+
+mc_version_manifest='https://launchermeta.mojang.com/mc/game/version_manifest.json'
+
+# check dependencies. this script requires jq
+if [ $(dpkg-query -W -f='${Status}' jq 2>/dev/null | grep -c "ok installed") -eq 0 ];
+then
+	echo "'jq' is not installed, run 'sudo apt-get install jq' to use this script"
+	exit
+fi
+
+# find our version.json file
+echo 'Reading version_manifest.json...'
+json_file=$(curl -s $mc_version_manifest | jq -r --arg version $1 '.versions[] | select(.id == $version).url')
+
+# find jar and mappings url
+echo "Reading $1.json..."
+json_file_contents=$(curl -s $json_file)
+client_jar=$(echo $json_file_contents | jq -r '.downloads.client.url')
+client_mappings=$(echo $json_file_contents | jq -r '.downloads.client_mappings.url')
+
+# download client.jar
+echo "Downloading client.jar..."
+curl -# -o client.jar $client_jar
+
+# download client.txt
+echo "Downloading ProGuard mappings: client.txt..."
+curl -# -o client.txt $client_mappings
+
+# delete old mappings
+rm -rf client.mappings
+
+echo "Converting ProGuard mappings to Engima mappings: client.mappings..."
+./enigma.sh convert-mappings proguard client.txt enigma client.mappings