a lot of stuff

open_in_unreal.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+
+# Open ExampleProject.uproject in Unreal Editor on Linux.
+
+set -Eeuo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
+PROJECT_PATH="$SCRIPT_DIR/ExampleProject.uproject"
+
+show_error() {
+    local message="$1"
+
+    if command -v zenity >/dev/null 2>&1 && [[ -n "${DISPLAY:-}${WAYLAND_DISPLAY:-}" ]]; then
+        zenity --error --title="ExampleProject - Unreal Editor" --width=520 --text="$message"
+    else
+        printf 'ERROR: %s\n' "$message" >&2
+        if [[ -t 0 ]]; then
+            read -r -p "Press Enter to close..." _
+        fi
+    fi
+}
+
+if [[ ! -f "$PROJECT_PATH" ]]; then
+    show_error "Project file was not found:\n$PROJECT_PATH"
+    exit 1
+fi
+
+find_editor() {
+    local candidate
+
+    # An explicit path takes priority. It may point to the UE root or the binary.
+    if [[ -n "${UE_ROOT:-}" ]]; then
+        for candidate in \
+            "$UE_ROOT" \
+            "$UE_ROOT/Engine/Binaries/Linux/UnrealEditor"; do
+            if [[ -x "$candidate" && ! -d "$candidate" ]]; then
+                printf '%s\n' "$candidate"
+                return 0
+            fi
+        done
+    fi
+
+    if command -v UnrealEditor >/dev/null 2>&1; then
+        command -v UnrealEditor
+        return 0
+    fi
+
+    for candidate in \
+        "$HOME/Unreal/UE_5.8/Engine/Binaries/Linux/UnrealEditor" \
+        "$HOME/Unreal/UE_5.7/Engine/Binaries/Linux/UnrealEditor" \
+        "$HOME/UnrealEngine/Engine/Binaries/Linux/UnrealEditor" \
+        /opt/UnrealEngine/Engine/Binaries/Linux/UnrealEditor \
+        /mnt/UnrealEngine/Engine/Binaries/Linux/UnrealEditor; do
+        if [[ -x "$candidate" ]]; then
+            printf '%s\n' "$candidate"
+            return 0
+        fi
+    done
+
+    return 1
+}
+
+if ! UNREAL_EDITOR="$(find_editor)"; then
+    show_error "Unreal Editor was not found.\n\nSet UE_ROOT to the Unreal Engine directory, for example:\nexport UE_ROOT=/home/vysyr/Unreal/UE_5.7"
+    exit 1
+fi
+
+printf 'Opening project:\n  %s\nwith:\n  %s\n' "$PROJECT_PATH" "$UNREAL_EDITOR"
+SDL_VIDEODRIVER=x11 exec "$UNREAL_EDITOR" "$PROJECT_PATH" "$@"