building for android impl

currently builds a "Metaforce" apk, will need to change name of course. Running the apk using Android Studio's emulator can get in game, however running on a samsung phone does not seem to work.

platforms/android/scripts/stage-jni-libs.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "$0")/../../.." && pwd)"
+APP_DIR="$ROOT_DIR/platforms/android/app/src/main/jniLibs"
+ANDROID_HOME_DIR="${ANDROID_HOME:-$HOME/Android/Sdk}"
+ANDROID_NDK_VER="${ANDROID_NDK_VERSION:-}"
+ANDROID_STAGE_ABIS="${ANDROID_STAGE_ABIS:-arm64-v8a x86_64}"
+ANDROID_STAGE_STRIP="${ANDROID_STAGE_STRIP:-1}"
+STRIP_TOOL=""
+
+if [[ -z "$ANDROID_NDK_VER" ]] && [[ -d "$ANDROID_HOME_DIR/ndk" ]]; then
+  ANDROID_NDK_VER="$(ls -1 "$ANDROID_HOME_DIR/ndk" | sort -V | tail -n 1)"
+fi
+
+if [[ -n "$ANDROID_NDK_VER" ]]; then
+  TOOLCHAIN_BIN="$ANDROID_HOME_DIR/ndk/$ANDROID_NDK_VER/toolchains/llvm/prebuilt/linux-x86_64/bin"
+  if [[ -x "$TOOLCHAIN_BIN/llvm-strip" ]]; then
+    STRIP_TOOL="$TOOLCHAIN_BIN/llvm-strip"
+  fi
+fi
+
+copy_lib() {
+  local abi="$1"
+  local src="$2"
+  local dst_dir="$APP_DIR/$abi"
+  local dst="$dst_dir/libmain.so"
+  mkdir -p "$dst_dir"
+  cp -f "$src" "$dst"
+  if [[ "$ANDROID_STAGE_STRIP" != "0" ]] && [[ -n "$STRIP_TOOL" ]]; then
+    "$STRIP_TOOL" --strip-debug "$dst"
+    echo "Staged and stripped $src -> $dst"
+  else
+    echo "Staged $src -> $dst (strip disabled or strip tool unavailable)"
+  fi
+}
+
+declare -A ABI_TO_LIB=(
+  ["arm64-v8a"]="$ROOT_DIR/build/android-arm64/libmain.so"
+  ["x86_64"]="$ROOT_DIR/build/android-x86_64/libmain.so"
+)
+
+# Drop any previously staged ABI directories to avoid stale APK contents.
+rm -rf "$APP_DIR/x86" "$APP_DIR/arm64-v8a" "$APP_DIR/x86_64"
+
+for abi in $ANDROID_STAGE_ABIS; do
+  src="${ABI_TO_LIB[$abi]:-}"
+  if [[ -z "$src" ]]; then
+    echo "Unsupported ABI '$abi'. Supported ABIs: arm64-v8a x86_64" >&2
+    exit 1
+  fi
+  copy_lib "$abi" "$src"
+done

platforms/android/scripts/sync-sdl-java.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "$0")/../../.." && pwd)"
+SRC_DEFAULT="$ROOT_DIR/build/android-arm64/_deps/sdl-src/android-project/app/src/main/java/org/libsdl/app"
+SRC_DIR="${1:-$SRC_DEFAULT}"
+DST_DIR="$ROOT_DIR/platforms/android/app/src/main/java/org/libsdl/app"
+
+if [[ ! -d "$SRC_DIR" ]]; then
+  echo "SDL Java source directory not found: $SRC_DIR" >&2
+  exit 1
+fi
+
+mkdir -p "$DST_DIR"
+cp -f "$SRC_DIR"/*.java "$DST_DIR"/
+echo "Synced SDL Java sources from $SRC_DIR to $DST_DIR"