Super Sumo Warrior II Turbo

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Super Sumo Warrior II Turbo is a Javascript game where you control a massive Sumo. You must hold your ground as an onslaught of angry Sumo try to defeat you.

How to Play

Tap W-A-S-D to move the Sumo Warrior.
Stay within the ring as long as you can while angry Sumos try to push you out
Beat your high score

Technical Features

Collision Detection

checks by comparing two Sumo's position, velocity, center-to-center distance, and radii.

centerDist = Util.dist(
  [this.pos[0] + this.vel[0],this.pos[1] + this.vel[1]],
  [otherObject.pos[0] + otherObject.vel[0],  otherObject.pos[1] + otherObject.vel[1]]
 );

 return centerDist > (otherObject.radius - this.radius);

Bounce - Utilizes elastic collision equations to give collisions a real feel

this.vel = vectorSubtract(this.vel,
    [((2 * otherObject.mass) / (this.mass + otherObject.mass)) *
    dotProduct(vectorSubtract(this.vel, otherObject.vel), vectorSubtract(this.pos,otherObject.pos)) /
    vectorNorm(this.pos, otherObject.pos) *
    vectorSubtract(this.pos, otherObject.pos)[0],
    ((2 * otherObject.mass) / (this.mass + otherObject.mass)) *
    dotProduct(vectorSubtract(this.vel, otherObject.vel), vectorSubtract(this.pos,otherObject.pos)) /
    vectorNorm(this.pos, otherObject.pos) *
    vectorSubtract(this.pos, otherObject.pos)[1]]
  );

Eat - Allows Sumos to absorb each other and grow accordingly
Destroy - Sumos can remove other Sumos from the game

Custom Artwork

Art designed and created by Robert Kornstein
Sumo Warrior -
Angry Sumo -

To Do

DRY and reorganize code
Add a mute button on start page instead of a control bar
Add leaderboards
Other Game Modes

Future Features

Reverse Mode You are now a small Sumo, while the Angry Sumo are large
Sticky Mode Angry Sumo attach to you on collisions. This causes restricts your movement
Hyper Mode Angry Sumo no longer bounce away. They stick to you and continue pushing in whatever directions they were traveling
Leader Board Incorporate a leader board to see how your high score compares to other player's

millmane/SuperSumoWarriorIITurbo