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Merge pull request #6 from goshathebusiness/hoi4-1-13
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hoi4 1.13 updated, linux support dropped
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@IlliaYalovoi
IlliaYalovoi authored Oct 23, 2023
2 parents a6cc72f + 52da14a commit 29e129f
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Showing 2 changed files with 42 additions and 61 deletions.
5 changes: 2 additions & 3 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -46,9 +46,9 @@ func main() {

switch result {
case "Europa Universalis IV":
err = applyPatch(debugMode, "eu4", OS)
err = applyPatch("eu4", OS)
case "Hearts of Iron IV":
err = applyPatch(debugMode, "hoi4", OS)
err = applyPatch("hoi4", OS)
}

if err != nil {
Expand All @@ -59,5 +59,4 @@ func main() {
}
fmt.Println("Press enter to exit")
fmt.Scanln()

}
98 changes: 40 additions & 58 deletions patch.go
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Original file line number Diff line number Diff line change
Expand Up @@ -52,99 +52,76 @@ func compareExes(exeAName, exeBName string) bool {
return reflect.DeepEqual(byteA, byteB)
}

func applyPatch(test bool, originalFileName, OS string) error {
var (
hexExistsEU4Windows = []string{"48", "8D", "0D", "??", "??", "??", "01", "E8", "??", "??", "??", "01", "85", "C0", "0F", "94", "C3", "E8"}
hexWantedEU4Windows = []string{"48", "8D", "0D", "??", "??", "??", "01", "E8", "??", "??", "??", "01", "31", "C0", "0F", "94", "C3", "E8"}

hexExistsHOI4Windows = []string{"48", "??", "??", "??", "??", "??", "??", "E8", "??", "??", "??", "01", "85", "C0", "0F", "94", "C3", "E8"}
hexWantedHOI4Windows = []string{"48", "??", "??", "??", "??", "??", "??", "E8", "??", "??", "??", "01", "31", "C0", "0F", "94", "C3", "E8"}
)

func applyPatch(originalFileName, OS string) error {
// SUPPORT DROPPED
//hexExistsEU4Linux := []string{"E8", "??", "??", "E5", "FF", "89", "C3", "E8", "??", "??", "EC", "FF", "31", "F6", "85", "DB", "40", "0F", "94", "C6", "48", "89", "C7"}
//hexWantedEU4Linux := []string{"E8", "??", "??", "E5", "FF", "89", "C3", "E8", "??", "??", "EC", "FF", "31", "F6", "31", "DB", "40", "0F", "94", "C6", "48", "89", "C7"}
//hexExistsEU4Darwin := []string{"E8", "7A", "C5", "76", "01", "89", "C3", "E8", "93", "A6", "EC", "FF", "31", "F6", "85", "DB", "40", "0F", "94", "C6", "48", "89", "C7"}
//hexWantedEU4Darwin := []string{"E8", "7A", "C5", "76", "01", "89", "C3", "E8", "93", "A6", "EC", "FF", "31", "F6", "31", "DB", "40", "0F", "94", "C6", "48", "89", "C7"}
//hexExistsHOI4Linux := []string{"E8", "20", "70", "F8", "FE", "41", "89", "C7", "31", "DB", "85", "C0", "0F", "94", "C3", "E8", "51", "87", "B8", "FF"}
//hexWantedHOI4Linux := []string{"E8", "20", "70", "F8", "FE", "41", "89", "C7", "31", "DB", "31", "C0", "0F", "94", "C3", "E8", "51", "87", "B8", "FF"}

var hexExists, hexWanted []string
var fileExtension string
var hexExists []string
var hexWanted []string
var hexExistsWindows []string
var hexWantedWindows []string
var hexExistsLinux []string
var hexWantedLinux []string
var hexExistsDarwin []string
var hexWantedDarwin []string
// EU4
hexExistsEU4Windows := []string{"48", "8D", "0D", "??", "??", "??", "01", "E8", "??", "??", "??", "01", "85", "C0", "0F", "94", "C3", "E8"}
hexWantedEU4Windows := []string{"48", "8D", "0D", "??", "??", "??", "01", "E8", "??", "??", "??", "01", "31", "C0", "0F", "94", "C3", "E8"}
hexExistsEU4Linux := []string{"E8", "??", "??", "E5", "FF", "89", "C3", "E8", "??", "??", "EC", "FF", "31", "F6", "85", "DB", "40", "0F", "94", "C6", "48", "89", "C7"}
hexWantedEU4Linux := []string{"E8", "??", "??", "E5", "FF", "89", "C3", "E8", "??", "??", "EC", "FF", "31", "F6", "31", "DB", "40", "0F", "94", "C6", "48", "89", "C7"}
hexExistsEU4Darwin := []string{"E8", "7A", "C5", "76", "01", "89", "C3", "E8", "93", "A6", "EC", "FF", "31", "F6", "85", "DB", "40", "0F", "94", "C6", "48", "89", "C7"}
hexWantedEU4Darwin := []string{"E8", "7A", "C5", "76", "01", "89", "C3", "E8", "93", "A6", "EC", "FF", "31", "F6", "31", "DB", "40", "0F", "94", "C6", "48", "89", "C7"}
// HOI4
hexExistsHOI4Windows := []string{"48", "8D", "0D", "77", "B6", "C9", "01", "E8", "CA", "86", "B3", "01", "85", "C0", "0F", "94", "C3", "E8", "90"}
hexWantedHOI4Windows := []string{"48", "8D", "0D", "77", "B6", "C9", "01", "E8", "CA", "86", "B3", "01", "31", "C0", "0F", "94", "C3", "E8", "90"}
hexExistsHOI4Linux := []string{"E8", "20", "70", "F8", "FE", "41", "89", "C7", "31", "DB", "85", "C0", "0F", "94", "C3", "E8", "51", "87", "B8", "FF"}
hexWantedHOI4Linux := []string{"E8", "20", "70", "F8", "FE", "41", "89", "C7", "31", "DB", "31", "C0", "0F", "94", "C3", "E8", "51", "87", "B8", "FF"}

if strings.Contains(originalFileName, "eu4") {
hexExistsWindows = hexExistsEU4Windows
hexWantedWindows = hexWantedEU4Windows
hexExists = hexExistsEU4Windows
hexWanted = hexWantedEU4Windows

hexExistsLinux = hexExistsEU4Linux
hexWantedLinux = hexWantedEU4Linux

hexExistsDarwin = hexExistsEU4Darwin
hexWantedDarwin = hexWantedEU4Darwin
} else if strings.Contains(originalFileName, "hoi4") {

hexExistsWindows = hexExistsHOI4Windows
hexWantedWindows = hexWantedHOI4Windows

hexExistsLinux = hexExistsHOI4Linux
hexWantedLinux = hexWantedHOI4Linux
hexExists = hexExistsHOI4Windows
hexWanted = hexWantedHOI4Windows

} else {
return errors.New("not supported executable")
return fmt.Errorf("not supported executable")
}

switch OS {
case "windows":
fileExtension = ".exe"
hexExists = hexExistsWindows
hexWanted = hexWantedWindows
case "linux":
fileExtension = ""
hexExists = hexExistsLinux
hexWanted = hexWantedLinux
case "darwin":
fileExtension = ""
hexExists = hexExistsDarwin
hexWanted = hexWantedDarwin
default:
fileExtension = ""
return fmt.Errorf("this OS (%s) is not supported", OS)

}

byteExists := make([]byte, len(hexExists))
byteWanted := make([]byte, len(hexWanted))
for i, h := range hexExists {
for i := range hexExists {
var value int64
if h == "??" {
if hexExists[i] == "??" {
value = 0
} else {
value, _ = strconv.ParseInt(h, 16, 16)
value, _ = strconv.ParseInt(hexExists[i], 16, 16)
}
byteExists[i] = byte(value)
}
for i, h := range hexWanted {
for i := range hexWanted {
var value int64
if h == "??" {
if hexWanted[i] == "??" {
value = 0
} else {
value, _ = strconv.ParseInt(h, 16, 16)
value, _ = strconv.ParseInt(hexWanted[i], 16, 16)
}
byteWanted[i] = byte(value)
}

go func() {
backupFile(originalFileName+fileExtension, originalFileName+"_backup"+fileExtension)
}()

if _, err := os.Stat(originalFileName + fileExtension); errors.Is(err, os.ErrNotExist) {
return fmt.Errorf("cannot locate %s in current folder", originalFileName+fileExtension)
}

go func() {
backupFile(originalFileName+fileExtension, originalFileName+"_backup"+fileExtension)
}()

originalByte, err := os.ReadFile(originalFileName + fileExtension)
if err != nil {
return err
Expand Down Expand Up @@ -179,7 +156,6 @@ func applyPatch(test bool, originalFileName, OS string) error {
}

if !status {

os.Remove(originalFileName + "_backup" + fileExtension)
return fmt.Errorf("unsupported version of %s or it's patched already. Patch has not been applied", originalFileName+fileExtension)
}
Expand All @@ -189,8 +165,14 @@ func applyPatch(test bool, originalFileName, OS string) error {
return err
}

out.Write(finalByte)
out.Close()
_, err = out.Write(finalByte)
if err != nil {
return err
}
err = out.Close()
if err != nil {
return err
}

return nil
}

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