HTML5 CANVAS · ADAPTIVE ODE · RK4 / RK2 ECO · MULTI-PHYSICS LAB

Space Duel

A top-down space-physics laboratory with three ship classes, coupled RK4 ODEs, binary gravity, trajectory prediction, fuel/mass, heat, shields, debris, kinetic collision damage and class-specific tactical AI with predictive planet-avoidance trajectory planning.

MULTI-SYSTEM PHYSICS1-V-1 MATCHMAKINGTRAJECTORY PREDICTIONTACTICAL AI + AVOIDANCE

PILOT · InterceptorHULL

0:0

RIVAL AI · GuardianHULL

SPACE DUELREADY

Distance 0

Adaptive ODE · RK4 / RK2 ECO

Field: free

60 FPS

LEFT: hold/drag = pilot · RIGHT: tap = fire · DOUBLE TAP / 2 FINGERS = pulse

FLEET · 3 SHIPS

Your ship

AI ship

InterceptorVery fast · light hull

Rapid fireOverdrive

GuardianHeavy armor · slow

Heavy cannonShockwave

RaiderBalanced · high energy

Twin plasmaEMP

ONLINE ARENA

Connecting to matchmaking…

You play the AI while waiting. As soon as a second player arrives, both ships are automatically warped into the same arena.

Online 1Waiting 1

Players are paired two by two. The winner automatically returns to the queue for the next challenger; the loser is eliminated until choosing to re-enter.

CONTROLS

← / ARotate left→ / DRotate right↑ / WThrustSPACEPrimary weaponSHIFT / ESpecial pulseQTractor fieldRRepulsor fieldTOUCHHold/drag on the left to pilot; tap on the right to fire.×2Double tap or two fingers: special pulse.

DUEL

Destroy the rival ship. Both craft preserve momentum in a binary gravity field; ships, projectiles, asteroids and debris are all affected by gravity.

AI difficulty

PHYSICS TELEMETRY

Mass0 kg Fuel0% Heat0% Shield0% Speed0 Kinetic E.0 Gravity accel.0 Engine100% Weapon100% PredictionRK4 · 4 s

SYSTEMS

Automatic web matchmaking pairs visitors two by two into a synchronized human arena; winners stay queued for the next duel.
Smooth adaptive zoom keeps both ships visible.
Finite square arena with symmetrical left/right and top/bottom boundaries.
Three ship classes with distinct stats, weapons and abilities.
Class-specific regenerating energy systems.
Both ship trajectories are calculated as a coupled 8-state ODE system using Runge–Kutta 4 integration.
Two orbiting gravity wells with capture zones and approximate Lagrange points.
RK4 future-path prediction plus a perturbed chaos-ghost trajectory.
Fuel-dependent mass, engine/weapon heat, radiative cooling and dynamic shields.
Kinetic-energy collision damage, damaged modules, asymmetric torque and persistent debris.
Near-body atmosphere with drag and heating.
Crossing either gravity-well capture radius triggers orbital collapse and ends the duel.
Asteroids use continuous collision detection (CCD), solid impacts and progressive weapon destruction: cracks, integrity loss, chipping and final fragmentation. Weapon kills can release collectible bonuses: repair, shield surge, reactor cell or weapon overdrive. Asteroids destroyed naturally by planet impacts, atmosphere or asteroid collisions also have a smaller salvage-drop chance.

Original implementation inspired by the classic space-duel genre; no Star Control artwork or characters are reproduced.

Portfolio project: standalone Canvas 2D game-laboratory combining RK4 ODEs, binary gravity, thermal/energy systems, modular damage, class-specific tactical AI and procedural rendering without an external game engine.