v0.3.0

Gameplay

• Hold ←/→ to move smoothly; p pauses; q returns to the title screen
• Score, high score and lives shown during play; 3 lives with respawn
• Aliens speed up as their numbers drop; each wave starts lower and faster
• 4 destructible shields
• Only the lowest alien in each column drops bombs
• Mystery UFO worth 50–300 points
• High score saved between sessions
• New title and game over screens, and explosions that linger

Fixes

• Collision boxes now match each sprite's size
• The alien formation turns and invades based on living aliens only
• Clearing a wave starts the next one instead of leaving an empty screen
• The cannon stays on screen; new games fully reset; only one game loop runs
• Off-screen bombs are cleaned up; the fire sound only plays when a shot fires

Under the hood

• The local HTTP server is gone: frames and key presses go through webview Bind directly to Go
• All assets are embedded in the binary, so go run . works and the app bundle is just the executable
• Steady 50 fps, a 2× crisp pixel window, and a much smaller JavaScript page
• Code split into focused files with unit tests and a render snapshot test

Download

invaders-v0.3.0-macos-arm64.zip contains the macOS app for Apple Silicon. It is unsigned, so right-click → Open the first time.