public void update(boolean powered, boolean watered, int desire, int taxRate) {
if (desire < 60) {
happiness--;
} else {
happiness++;
}
if (!powered) {
happiness--;
} else {
happiness++;
}
if (!watered) {
happiness--;
} else {
happiness++;
}
if (taxRate <= 1) {
happiness++;
} else {
if (taxRate == 3) {
happiness --;
}
if (taxRate == 4) {
happiness--;