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 redraw(unsigned int* framePointer)
{
drawAliens();
drawHUD();
drawBullets(0x00FF0000);
draw_bunker(0x0000FF00);
draw_tank(0x0000FF00);
drawAliens();
drawHUD();
drawBullets(0x00FF0000);
draw_bunker(0x0000FF00);
draw_tank(0x0000FF00);
}
void updateAlienBlock() {
int stage;
// This waits a full second in FIT ticks, and updates cumulative seconds if there are no button presses.
if (fit_timer_count >= getAlienTicks()) {
drawAliens();
stage = getMarchingStage();
switch(stage) {
case (1):
setMarchingFlag(1);
break;
case (2):
setMarchingFlag2(1);
break;
case (3):
setMarchingFlag3(1);
break;
case (4):
setMarchingFlag4(1);
break;
default:
xil_printf("default\n\r");
//setMarchingFlag(1);
break;
}
//setMarchingFlag(1);
//fifo_writer(fastinvader1SoundData, fastinvader1SoundRate, fastinvader1SoundFrames);
fit_timer_count = 0; // Reset the counter.
}
}
// Render the screen.
void render() {
initAliveAliens();
drawAliens(framePointer0);
drawTank(false, 0, 0);
drawBunkers(framePointer0);
drawStats(framePointer0);
}
int chooseAlienToKill(int x, int y){
int i;
int* alienBMP;
for(i = 0; i < ALIEN_ROWS*ALIENS_PER_ROW; i++){
if(alienArray[i] > DEAD_ALIEN){
if((y >= (alienOriginY + i/ALIENS_PER_ROW*ALIEN_HEIGHT)) && (y < (alienOriginY + i/ALIENS_PER_ROW*ALIEN_HEIGHT+ALIEN_HEIGHT))){
//xil_printf("Made it into checking the alien Y bounds for alien %d.\n\r",i);
int myLeftBound = alienOriginX + i%ALIENS_PER_ROW*ALIEN_WIDTH;
int myRightBound = alienOriginX + i%ALIENS_PER_ROW*ALIEN_WIDTH+ALIEN_WIDTH;
if((x >= (myLeftBound)) && (x < (myRightBound))){
if(DB_ON1){ xil_printf("You've hit alien %d! Blarg!\n\r",i);}
/*alienArray[i] = DEAD_ALIEN;
return 1;*/
switch(alienArray[i]){
case BIG_SQUID:
alienBMP = (alienInOut == 0 ? bigSquidIn :
bigSquidOut);
addToScore(HIT_BIG_SQUID);
break;
case LITTLE_SQUID:
alienBMP = (alienInOut == 0 ? littleSquidIn :
littleSquidOut);
addToScore(HIT_SMALL_SQUID);
if(DB_ON1) xil_printf("We're in the little squid space.\n\r");
break;
case JUMPING_JACK:
alienBMP = (alienInOut == 0 ? jumpingJackIn :
jumpingJackOut);
addToScore(HIT_JUMPING_JACK);
break;
default:
alienBMP = noAlien;
break;
}
alienArray[i] = DEAD_ALIEN; //i like boys
activeInvaderDieSound(); //activeInvaderDieSound();
drawAliens();
lastAlienKilled = i;
return 1;
}
}
}
}
return 0;
}
//updates the origin location by the predefined amount
void moveAliens(){
//call move aliens sound
//moveInvadersSound();
activeInvaderMoveSound();
//what to do if aliens are on the left side of the screen
if(alienDirection == LEFT && (alienOriginX - PIXELS_PER_MOVE < -1*(ALIEN_WIDTH * firstColAliveAliens))){
alienOriginY += PIXELS_PER_MOVE;
undrawAliens(DOWN);
alienDirection = RIGHT;
}
//aliens are on the right side of the screen
else if(alienDirection == RIGHT && (alienOriginX + alienFarRightOffset + PIXELS_PER_MOVE > (SCREEN_X_PIXELS + (ALIENS_PER_ROW - lastColAliveAliens - 1)*ALIEN_WIDTH))){
alienOriginY += PIXELS_PER_MOVE;
undrawAliens(DOWN);
alienDirection = LEFT;
}
//aliens are free to move as normal
else{
alienOriginX += alienDirection == RIGHT ? PIXELS_PER_MOVE : PIXELS_PER_MOVE * -1;
undrawAliens(alienDirection);
}
int in;
for(in = 0; in < NUM_BUNKERS; in++){
drawBunker(in);
}
drawAliens();
firstColAliveAliens = findFirstAliveColumn();
lastColAliveAliens = findLastAliveColumn();
lastRowAliveAliens = findLastAliveRow();
int j;
for(j = 0; j < NUM_ALIEN_BULLETS; j++){
drawAlienBullet(j);
}
//drawAliens();
if((alienOriginY + (lastRowAliveAliens+1) * ALIEN_HEIGHT) >= (BUNKER_INITIAL_Y + 3*BUNKER_HEIGHT)){
runGameOver(0);
}
}
int main(){
int xposS = 370;
char c; //user input
int xdist = 0, ydist =0;
int dx = 1;
int Bnum = 0;
int posB[2][10] = {0};
unsigned int i, j;
gfx_open(SIZEX, SIZEY, "Space Invaders"); //open window
initializeBullets(posB);
while(true){
gfx_clear(); //clear screen
dispScore();
uShooter(xposS);
drawAliens(xdist, ydist);
if(gfx_event_waiting()){ //if true
c = gfx_wait(); //find choice
if (c == 'b'){
xposS-=10;
if (xposS <= 0) xposS = 0;
}else if (c == 'n'){
xposS +=10;
if (xposS >= SIZEX-30) xposS = SIZEX-30;
}else if (c == ' '){
for(i=0; i<10; i++){
if(posB[0][i] == -1){
posB[0][i] = drawBullet(xposS);
posB[1][i] = YPOS;
}
}
}else if (c == 'q') return 0;
else continue;
}
xdist+=dx;
if(xdist>=370 || xdist <=-100){
dx*=-1;
}
if(xdist == 370 || xdist ==-100){
ydist +=5;
}
if(ydist == 225) return 0; //change lives num
for(j=0; j<10; j++){
if(posB[0][j] != -1){
moveBullet(posB, j);
}
checkBullet(posB,j);
}
usleep(25000);
gfx_flush();
}
}
