the files

config.cfg

@@ -0,0 +1,16 @@
+unbindall
+bind "A" "+jump"
+bind "B" "+reload"
+bind "X" "save a;load a"
+bind "Y" "+use"
+bind "UP" "slot1"
+bind "DOWN" "slot3"
+bind "LEFT" "slot4"
+bind "RIGHT" "slot2"
+bind "WHITE" "save b"
+bind "BLACK" "load b"
+bind "STICK1" "+duck"
+bind "STICK2" "+speed"
+bind "R TRIGGER" "+attack"
+bind "L TRIGGER" "+attack2"
+bind "BACK" "exec the_config.cfg"

insert.go

@@ -0,0 +1,91 @@
+package main
+
+import (
+	"bytes"
+	_ "embed"
+	"errors"
+	"fmt"
+	"log"
+	"os"
+)
+
+const offset = 0x26DB27 //where the default config is located
+const maxSize = 0x44D   //safe size so i don't overwrite anything else
+
+func usage() error {
+	return errors.New("Usage: <config_to_inject.cfg> <zip0_xbox.xzp>")
+}
+
+func inject(in []byte, orig []byte) []byte {
+	return bytes.Join(
+		[][]byte{
+			bytes.Clone(orig[:offset]),
+			in,
+			bytes.Clone(orig[offset+maxSize:]),
+		},
+
+		[]byte{},
+	)
+}
+
+func open(path string) (*os.File, int64) {
+	file, err := os.Open(path)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	stat, err := file.Stat()
+	if err != nil {
+		log.Fatal(err)
+	}
+	return file, stat.Size()
+}
+
+func main() {
+	if len(os.Args) <= 2 {
+		err := usage()
+		log.Fatal(err)
+	}
+
+	cfg, cfgSize := open(os.Args[1])
+	defer cfg.Close()
+
+	orig, origSize := open(os.Args[2])
+	defer orig.Close()
+
+	if cfgSize > maxSize {
+		decSize := fmt.Sprintf("%d", maxSize)
+		err := errors.New("config file too large, max size " + decSize + " bytes")
+		log.Fatal(err)
+	}
+
+	cfgData := make([]byte, maxSize)
+	cfg.Read(cfgData)
+
+	origData := make([]byte, origSize)
+	orig.Read(origData)
+
+	modified := inject(cfgData, origData)
+
+	xzp, err := os.Create("modified.xzp")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer xzp.Close()
+
+	xzp.Write(modified)
+
+	modStat, err := xzp.Stat()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if modStat.Size() != origSize {
+		err = errors.New("modified file not correct size")
+		log.Fatal(err)
+	}
+
+	fmt.Println(string(modified[offset : offset+maxSize]))
+
+	log.Println("now just rename the file to zip0_xbox.xzp :3")
+}

the_config.cfg

@@ -0,0 +1,18 @@
+alias "w" "wait"
+alias "w2" "w;w"
+alias "w4" "w2;w2"
+alias "w8" "w4;w4"
+alias "w16" "w8;w8"
+alias "w32" "w16;w16"
+alias "w64" "w32;w32"
+alias "w128" "w64;w64"
+alias "w256" "w128;w128"
+alias "w512" "w256;w256"
+alias "w1024" "w512;w512"
+alias "w2048" "w1024;1024"
+alias "w4096" "w2048;w2048"
+bind "DOWN" "w4096"
+bind "LEFT" "sv_cheats 1;noclip;god;shake;createhairball;createflashlight"
+bind "UP" "map d2_coast_01"
+bind "RIGHT" "say uwu"
+sv_unlockedchapters "15"