VEX Soccer

By: Mike McGowan & Tristan LaRue

Old game, redone and remade for today's technology

Necessities of the game

Nets ~ There will be two nets across from each other on the field. They're 38" tall and 42" wide with a depth of 12".

Game balls ~ There are 2 balls on the field at any given time, one is the standard ball which will be reused game balls from the 2015-2016 game. The second is a ball that will be placed 1' towards the direction of the top or "home" spawn.

Scorers ~ Scorers will be on the outside of the field and located in the empty corners. They will keep score for the alliance scoring in the goal opposite to them.

Autonomous period

The autonomous period is defined as the period in which preprogrammed controls move the robot and driver control is not allowed. The autonomous period will go as follows. 2 robots will be centered along the wall to the left of there spawn with a bonus ball in front of them. They will then shoot that one and from there, standard balls will be placed in front of them until the end of autonomous. Note, where the goal is scored matters and the scorers will keep up with that. At the end of autonomous, 10% of the score for that alliance at the end of the game will be added to the team who won autonomous.

Driver control scoring

~Standard balls are worth 5 points separately. Bonus balls are worth 10.

~ The goal will be divided into 6 equal parts (not physically) with different boxes worth different things. The bottom 2 corners are worth 3 points. The middle two boxes are worth 5 points. And the 2 top corner boxes are 10 points which will be added in addition to the ball that scores in that box.

Rules and Guidelines

~No more than 1 robot within an 18"X18" box in front of the goal at one time (Will be marked off)

~Robots not at over halfway in rhe box may not expand

~Robots can only expand to a total of 36 inches in any given direction.

~Robots must fit in an 18"x18" cube before a tournament (as per usual).

~Alliances with a robot that holds any given ball for more than 15 seconds will be deducted 5 points upon the placing of said transgression. 2nd offense and on is a 10 point deduction.

~No advantageous hitting, pinning, or pushing of other robots. Robots can make contact, but outright ramming of or by robots not invovled with the play will result in a free kick.

~Free kicks are defined as any kick given to a robot that was the victim of a penalty. Free kicks will be assessed at the spot of the foul. Only a robot in goal is allowed to oppose him during free kicks. A robot is allowed to be in the free kicking team's goal as well. Once the ball is kicked the robot of the penalized team will be allowed to move from spawn, as they were reset there upon the penalty. The bonus ball will be reset to its starting position as well upon the penalties' occurance and time will be stopped when the penalty is given. Time will restart when the ball regular ball is kicked again.

~At the end of the match. If there is no score or it is tied, the match will end as a draw.

How physics is involved

Physics is greatly involved. How you hit the ball and with what power will greatly affect where it goes. If you hit the bottom of the ball it will go up to get the high corners. If you hit it from the top you'll need high velocity in order to efficiently burn it by goal keeper. Here you need linear kinematics to figure out how to score effectively. You can also attempt to curve the bonus ball in order to make it harder to stop. This makes you use angular kinematics in order to optimize your scoring. It all depends on where you hit it, and how hard you hit it.