Tank War

A small 2D tank game built with Java Swing and AWT. The player moves a tank on an 800×600 battlefield with brick walls and a grid of enemy tanks. Rendering uses GIF/PNG sprites loaded from the local assets folder.

Features

• Player tank — controlled with the keyboard; supports eight-way movement (including diagonals).
• Enemy tanks — twelve enemies arranged in a 3×4 formation.
• Walls — horizontal and vertical brick segments used as obstacles; tanks cannot pass through them or through each other.
• Shooting
  • Space — fires one missile in the current facing direction.
  • A — “super fire”: spawns missiles in all eight directions at once (player only).
• Singleton game client — gameclient holds the player, enemies, walls, and active missiles and repaints in a simple game loop (~20 FPS, 50 ms sleep).

Requirements

• JDK 8 or newer (project targets Java 8 in pom.xml)
• Apache Maven (to compile and run tests)

Project layout

src/main/java/com/java/tankwar/
  gameclient.java   — entry point, window, key listener, game loop
  Tank.java         — movement, collision with walls/enemies, firing
  Missile.java      — projectile movement and drawing
  Wall.java         — brick walls
  Direction.java    — facing / sprite key (tank and missile GIFs)
  tools.java        — loads images from the assets directory

assets/
  images/           — tank, missile, brick, and UI images (GIF/PNG)
  audios/           — present in the repo (not wired in the current Java code)

src/test/java/      — JUnit 5 tests (e.g. tank image loading)

Build and run

Important: Image paths are relative to the process working directory. Run the game from the project root so assets/... resolves correctly.

mvn compile
java -cp target/classes:. com.java.tankwar.gameclient

On Windows, use a semicolon in the classpath:

mvn compile
java -cp target/classes;. com.java.tankwar.gameclient

Tests

mvn test

Controls

Key	Action
↑ ↓ ← →	Move (combinations give diagonal movement)
Space	Fire a single missile
A	Fire missiles in all eight directions

Technical notes

• Window title is set in Chinese (“坦克大戰”) in gameclient.
• Window icon is loaded from a hard-coded absolute path in gameclient (.../assets/images/icon.png). On another machine, change that path or the game may fail to set the icon (the rest of the game may still run).
• tools.getImage uses the path assets/Images/ (capital I). The repository uses assets/images/. This works on case-insensitive file systems (default macOS) but can break on Linux or other case-sensitive setups unless the folder name matches the code or the path in tools.java is updated.
• Combat logic in this snapshot is minimal: missiles move and draw; there is no implemented logic here for hits, damage, or removing enemies/missiles from the lists.

License

No license file is included in this repository; treat usage as unspecified until one is added.