/** \brief Get the current time
*
* \b os_timeGet gets the current time by calling
* \b clock_gettime with clock ID \b CLOCK_REALTIME
* and converting the result in \b struct
* \b timespec format into \b os_time format.
*/
os_time
os_timeGet (
void)
{
struct timeval t;
os_time rt;
if (clockGet) {
rt = clockGet ();
} else {
gettimeofday (&t, NULL);
rt.tv_sec = t.tv_sec;
rt.tv_nsec = 1000 * t.tv_usec;
}
return rt;
}
/*
Purpose: animate and run the game with the clock
Input : a char length pointer to the frame buffer and a long length pointer to the frame buffer
Returns: nothing, but constantly runs the game and its functions
Assume : nothing
*/
void animate_main(char *base,long *iBase)
{
long *back,*temp;
int musicCounter = 0;
int enMisCount = 0;
int plMisCount = 0;
int x,y = 0;
long clock;
long newClock;
int mouseClicked = 0;
unsigned short mouseX,mouseY;
int i= 0,j = 0,k = 0,l = 0;
int randX,randY,randX2;
int fire = 0;
int s = 0;
int done = 0;
int render = 0;
struct missile friendlyMis[NUM_MISSILES];
struct missile enemyMis[NUM_MISSILES];
struct explosion explosions[NUM_EXPLOSIONS];
struct missile_Silo silo;
struct city city1;
struct city city2;
struct city city3;
struct city city4;
struct city city5;
struct city city6;
int *music = get_music();
Vector original_Vector;
/*start the music*/
stop_sound();
start_music();
/*init ther model*/
initialize_model(&city1,&city2,&city3,&city4,&city5,&city6,&silo,friendlyMis,enemyMis,explosions);
/*create the backbuffer*/
back = (long *)(buffer + (256 -((long)&buffer)%256));
init_VBL_ISR(original_Vector);
while(done == 0)
{
/*random values for enemy missiles*/
randX = rand() % BORDER_RIGHT + 16;
randX2 = rand() % BORDER_RIGHT + 16;
randY = rand() % GROUND_LEVEL - 200;
/* needs to fire a player missile at the mouse click coordinates */
if (mouseClicked == TRUE)
{ /* process on input */
if (k > NUM_MISSILES-1)
{
k = 0;
}
if (friendlyMis[k].destroyed == TRUE)
{
friendlyMis[k].destroyed = FALSE;
friendlyMis[k].currentY = GROUND_LEVEL-20;
friendly_Missile_Fired(mouseX,mouseY, &friendlyMis[k],MISSILE_SILO_FIRING_POINT);
missile_fired_sound();
k++;
}
}
clock = clockGet();
if (clock != newClock)
{ /* process on clock change */
fire++;
if(fire == MISSILE_FIRED_TIME)
{
enemyMis[j].destroyed = FALSE;
enemy_Missile_Fired(randX, GROUND_LEVEL, &enemyMis[j],randX2);
j++;
if(fire == MISSILE_FIRED_TIME)
{
fire = 0;
}
if (j == NUM_MISSILES-1)
{
j = 0;
}
}
mouseClicked = get_mouse_pos(&mouseX,&mouseY);
if(render == 1)
{
render_main(back, city1, city2, city3, city4, city5, city6, silo, enemyMis,friendlyMis, explosions,mouseX,mouseY,render);
}
/* T */
temp = iBase;
iBase = back;
back = temp;
/* wait for sync and then set the screen to the current buffer */
set_video_base_wrap((char *)iBase);
/* process missiles
might need to change to be able to handle more */
for (i = 0; i < NUM_MISSILES; i++)
{
if (enemyMis[i].destroyed == FALSE && explosions[i].exists == FALSE)
{
processEnemyMissiles(&enemyMis[i],&explosions[i],clock,ENEMY_SPEED);
}
if (friendlyMis[i].destroyed == FALSE && explosions[i+NUM_MISSILES].exists == FALSE)
{
processEnemyMissiles(&friendlyMis[i],&explosions[i+NUM_MISSILES],clock,FRIENDLY_SPEED);
}
}
/* process explosions
might need to change to be able to handle more */
for (i = 0; i < NUM_EXPLOSIONS; i++)
{
if (explosions[i].exists == TRUE)
{
processExplosions(&explosions[i]);
}
}
/* process missile -> explosion collisions */
for (i = NUM_MISSILES; i < NUM_EXPLOSIONS; i++)
{
if (explosions[i].exists == TRUE)
{
processCollisions(friendlyMis,enemyMis,explosions[i]);
}
}
/* process explosion -> city explosions */
for (i = 0; i < NUM_MISSILES; i++)
{
if (explosions[i].hit_city != FALSE)
{
city_collision(explosions[i].hit_city,&city1,&city2,&city3,&city4,&city5,&city6);
}
}
if (musicCounter < SONG_LENGTH){
if (fire % 4 == 0)
{
play_music(music[musicCounter]);
musicCounter++;
}
}
else
{
musicCounter = 0;
}
}
newClock = clockGet();
done = game_over(city1,city2,city3,city4,city5,city6);
}
stop_sound();
}
