js_thrustvector

🚀 js_thrustvector (Co-op)

Play it now: https://pemmyz.github.io/js_thrustvector/

A retro-styled JavaScript browser game inspired by Thrust, with a cooperative twist.
Two players must clamp onto a physics-driven bomb with short ropes and carefully fly it together through winding caverns to the extraction zone.

Built with HTML5 Canvas, CSS3, and vanilla JavaScript — no external libraries required.

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🎮 Gameplay

Objective

Work together to retrieve the bomb from deep within the caves and carry it safely to the green extraction zone at the surface.

Controls

Player 1 (P1 🚀)

• A / D → Rotate
• W → Thrust
• S → Clamp / Release (toggle)

Player 2 (P2 🚀)

• ← / → → Rotate
• ↑ → Thrust
• ↓ → Clamp / Release (toggle)

🎮 Gamepad (for the assigned controller of each player)

• Rotate: Left Stick (← / →) or D-Pad Left / Right
• Thrust: A (Xbox) / X (PlayStation) or Right Trigger (RT / R2)
• Clamp / Release: D-Pad Down (toggle)

_{Tip: Press any face button (A/B/X/Y on Xbox, ✕/○/□/△ on PlayStation) to join/assign a connected gamepad to P1 or P2. Keyboard and gamepad inputs can be mixed.}

Mechanics

• Harmony Meter: Both ships must clamp onto the bomb to lift it.
  • Fly smoothly and align angles with your partner.
  • Poor harmony destabilizes the bomb.
• Bomb Stability: Impacts or disharmony reduce stability. If it reaches 0% → BOOM 💥.
• Hazards:
  • Cave walls damage ships.
  • Hard crashes shake the camera and risk destruction.
• Landing Pads (green): Repair damage and refuel ships.
• Fog of War: Caverns are dark until explored. Each ship gradually uncovers the map.
• Minimap + Pathfinding: A minimap shows explored terrain and objectives. Optional pathfinding hints guide players to the bomb and extraction zone.

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🕹️ Features

• Co-op two-player shared-screen or split-screen mode (toggle in menu)
• Procedural random caverns & mazes with multiple scaling modes
• Physics-based bomb ropes and stability mechanics
• Procedurally shaky harmony/stability HUD
• Dev Mode (cycle with [V]):
  • Mode 0 → OFF
  • Mode 1 → Infinite fuel + 75% reduced damage
  • Mode 2 → Invulnerable
• Pause anytime with [P]
• In-game help menu with [H]
• Dynamic minimap with fog-of-war and pathfinding assistance

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💡 Future Ideas

• 🎵 Retro sound effects & background music
• 🌋 More cave hazards (falling rocks, lava, or turrets)
• 🌍 Online co-op support
• 📱 Mobile touch controls
• 🐸 Secret "AMIGAAA!" Frog mode

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📜 License

MIT License
Free to use, modify, and share.