0xmonaco.sol

contract ExampleCar is Car {
    constructor(Monaco _monaco) Car(_monaco) {}

    function takeYourTurn(Monaco.CarData[] calldata allCars, uint256 ourCarIndex) external override {
        Monaco.CarData memory ourCar = allCars[ourCarIndex];
        uint othersBalance;
        for (uint i; i < allCars.length; ++i) {
            if(ourCarIndex != i) {
                othersBalance += allCars[i].balance;
            }
        }
        // if 2nd & near finish line, buy shell
        if (ourCarIndex == 1 && ourCar.y >= 933 && ourCar.balance >= monaco.getShellCost(1)) monaco.buyShell(1);
        // buy 20 acceleration right away
        if (ourCar.y <= 1 && monaco.getAccelerateCost(20) <= 3030) monaco.buyAcceleration(20);
        // buy cheap shells 
        if (monaco.getShellCost(1) <= 222) monaco.buyShell(1);
        // if shelled, buy 10 acceleration if cheap
        if (ourCar.speed == 1 && monaco.getAccelerateCost(10) <= 1111)  {
            monaco.buyAcceleration(10);
            return;
        }
        // if other racers are poor, just buy accelerations
        if (othersBalance <= 786) monaco.buyAcceleration(3);
        // buy 2 cheap acceleration
        if (monaco.getAccelerateCost(2) <= 369) monaco.buyAcceleration(2);
        //  buy more acceleration if rich towards end of race
        if (allCars[0].y >= 600 && ourCar.balance >= 12222) monaco.buyAcceleration(2);
        // if first and towards finishline, buy cheap shell if car behind us can afford.
        if (ourCarIndex == 0 && ourCar.y >= 800 && allCars[1].balance >= monaco.getShellCost(1) && monaco.getShellCost(1) <= 666) monaco.buyShell(1);
        // shell car in front of us
        if (ourCarIndex != 0 && allCars[ourCarIndex - 1].speed > ourCar.speed) {
            // buy no matter what price if near finish line
            if(allCars[ourCarIndex - 1].y >= 800 || allCars[ourCarIndex - 1].speed >= 30) {
                monaco.buyShell(1);
                return;
            }
            // buy if cheap
            else if (monaco.getShellCost(1) <= 500) {
                monaco.buyShell(1); 
                return;
            }
        }
        // if car behind us is faster than us and towards finish line, buy acceleration
        if (ourCarIndex < 2 && allCars[ourCarIndex + 1].speed > ourCar.speed && ourCar.y >= 777) {
            // buy 1-5 accelerations no matter what price
            uint x = (allCars[ourCarIndex + 1].speed - ourCar.speed) % 5;
            monaco.buyAcceleration(x + 1);
            return;
        }
        // if towards finish line and we r shelled buy accelerations
        if (ourCar.y >= 800 && ourCar.speed <=2 && ourCar.balance >= monaco.getAccelerateCost(3)) {
            monaco.buyAcceleration(3);
            return;
        }
        // if everyone still has decent money towards end, just buy acceleration
        if (othersBalance + ourCar.balance >= 15000 && allCars[0].y >= 765) monaco.buyAcceleration(4);
        // if im richer than the other 2 combined and we are towards the end, buy accelerations
        if (ourCar.balance >= othersBalance && allCars[0].y >= 600) {
            // if we are a lot more rich than other 2, buy 10 accelerations.
            if(ourCar.balance / othersBalance >= 10 && ourCar.balance >= monaco.getAccelerateCost(10)) {
                monaco.buyAcceleration(10);
            } else monaco.buyAcceleration(2);
        }
    }
}