void moveTankBullet(){
if(tankBullet.type != INACTIVE_BULLET){ //bullet is active
tankBullet.y -= TANK_BULLET_PIXELS_PER_MOVE;
undrawTankBullet();
ScreenPoint hitCoord = tankBulletCollision();
if(tankBullet.y <= TOP_OF_PLAYABLE_AREA ){
tankBullet.type = INACTIVE_BULLET; //bullet has gone offscreen so deactivate the bullet
clearTankBullet();
}
else if(hitCoord.xcoord >= 0 && hitCoord.ycoord >= 0){
if(DB_ON1) xil_printf("This is oops: %d, %d\n\r",hitCoord.xcoord, hitCoord.ycoord);
clearTankBullet();
tankBullet.type = INACTIVE_BULLET; //bullet has hit something
deactiveFireTankBulletSound();
if(allAliensDead()){
drawAliens();
alienArray[lastAlienKilled] = NO_ALIEN;
drawAliens();
runGameOver(1);
}
//chooseBunkerBlockToDamage(hitCoord);
}
drawTankBullet();
}
}
void updateAllBullets() {
if (getBulletStatus()) {
point_t tank_bullet;
tank_bullet.x = getTankBulletPosition().x;
tank_bullet.y = getTankBulletPosition().y-BULLET_INCREMENT;
setTankBulletPosition(tank_bullet);
drawTankBullet(true);
checkHits();
}
updateBullets();
}
void debounceButtons() {
int rightVal = MOVE_TANK_RIGHT;
int leftVal = MOVE_TANK_LEFT;
int fire = TANK_FIRE;
if (currentButtonState == 0) {
volFlag = false;
}
// Control volume of sounds in the game
if (debounce_timer_count >= BUTTON_DEBOUNCE_WAIT && !volFlag){
if (currentButtonState == VOL_UP){
setVolLevel(getVolLevel() + 1);
}
else if (currentButtonState == VOL_DOWN){
setVolLevel(getVolLevel() - 1);
}
volFlag = true;
debounce_timer_count = 0; // Reset the debouncing timer
}
// This waits the given amount of time, so that button presses can be properly debounced.
if (debounce_timer_count >= BUTTON_DEBOUNCE_WAIT && !isTankHit()) {
if ((currentButtonState == leftVal || currentButtonState == leftVal + fire) && getTankPositionGlobal() >= TANK_BORDER_LEFT){
setTankPositionGlobal(getTankPositionGlobal() - TANK_INCREMENT);
drawTank(false, 0, 0);
}
else if ((currentButtonState == rightVal || currentButtonState == rightVal + fire) && getTankPositionGlobal() <= TANK_BORDER_RIGHT){
setTankPositionGlobal(getTankPositionGlobal() + TANK_INCREMENT);
drawTank(false, 0, 0);
}
if (!getBulletStatus() && (currentButtonState == fire || currentButtonState == rightVal + fire || currentButtonState == leftVal + fire)){
setBulletStatus(true); // Let globals know that there's a tank bullet in the air
point_t bullet; // Create a new bullet for the tank
bullet.x = getTankPositionGlobal() + (TANK_WIDTH/SCALING_FACTOR); // Assign the bullet's x-val to the middle of the tank
bullet.y = TANK_ROW_START; // Assign the bullets' y-val to the top of the tank
setTankBulletPosition(bullet); // Set the bullet in globals
drawTankBullet(false); // Draw this new bullet
setPingFlag(1);
}
debounce_timer_count = 0; // Reset the debouncing timer
}
}
