int main()
{
int hour, minute;
printf("Hour: ");
scanf("%d", &hour);
printf("Minute: ");
scanf("%d", &minute);
if (hour < 0 || hour > 12) {
printf("invalid hour (0-12) : %d\n", hour);
return 0;
}
if (minute < 0 || minute > 60) {
printf("invalid minute (0-60) : %d\n", minute);
return 0;
}
printf("Angle between %d hour and %d minutes = %3.1f degrees \n",
hour, minute, find_angle(hour, minute));
return 0;
}
void Car::Calculate_angles()
{
for( int i = 1; i < coords.size(); ++i ) {
coords[i - 1].angle = find_angle( coords[i].x - coords[i - 1].x, coords[i].y - coords[i - 1].y );
if( coords[i].y - coords[i - 1].y < 0 ) {
coords[i - 1].help_angle = PI;
}
}
coords[coords.size() - 1].angle = coords[coords.size() - 2].angle;
coords[coords.size() - 1].help_angle = coords[coords.size() - 2].help_angle;
}
void enemy::update(){
//if(random(1,1000)==1)create_mine(x,y);
//angle_radians=find_angle(x+100,y+30,player_x+15,player_y+20);
if(health<=0){
game_world -> delete_enemy(this);
game_world -> create_item( RICOCHET, x, y);
}
if( direction == LEFT)
x -= 5;
if( direction == RIGHT)
x += 5;
if( x > SCREEN_W-200){
direction = HOVER;
movement_timer++;
if( movement_timer > 120){
direction = LEFT;
movement_timer = 0;
}
}
if( x < 25){
direction = HOVER;
movement_timer++;
if( movement_timer > 120){
direction = RIGHT;
movement_timer = 0;
}
}
if( fire_rate < fire_timer){
game_world -> create_projectile( x + 100, y + 30, HELICOPTER,
find_angle( x + 100, y + 30, game_world -> get_character_x() + 30,
game_world -> get_character_y() + 15),5,false,5,5);
fire_timer = 0;
}
hurt_timer--;
fire_timer++;
for( unsigned int i = 0; i < game_world -> get_projectiles() -> size(); i++){
if( collision(x,
x + width,
game_world -> get_projectiles() -> at(i) -> get_x(),
game_world -> get_projectiles() -> at(i) -> get_x() + game_world -> get_projectiles() -> at(i) -> get_width(),
y,
y + height,
game_world -> get_projectiles() -> at(i) -> get_y(),
game_world -> get_projectiles() -> at(i) -> get_y() + game_world -> get_projectiles() -> at(i) -> get_height()
)
&& game_world -> get_projectiles() -> at(i) -> get_owner()){
health -= 5;
hurt_timer = 3;
game_world -> delete_projectile(game_world -> get_projectiles() -> at(i));
}
}
/*if( health < 1){
if( helicopter_killcount < 15){
if(random( 1, 15 - helicopter_killcount) == 1){
create_box( x, y, 0);
}
}
else if( random( 1, 2) == 1)
create_box( x - 76, y, 0);
if( random( 1, 2) == 1)
create_box( x, y, 3);
if( helicopter_killcount < 20){
if(random( 1, 20 - helicopter_killcount) == 1){
create_box( x, y, 2);
}
}
else
create_box( x - 76, y, 2);
create_box( x + 76, y, 1);
health = 100;
if( helicopter_killcount < 10)
create_helicopter(1);
if( helicopter_killcount > 9)
create_helicopter( random( 1, 2));
helicopter_killcount++;
}*/
}
ImageRAII canny( IplImage * image, std::pair< int, int > thresh, double sigma )
{
const char * WINDOW_NAME = "Basic Canny Edge Detector";
ImageRAII grayscale( cvCreateImage( cvGetSize( image ), image->depth, 1 ) );
ImageRAII destination( cvCreateImage( cvGetSize( image ), image->depth, grayscale.image->nChannels ) );
ImageRAII gaussian( cvCreateImage( cvGetSize( image ), image->depth, grayscale.image->nChannels ) );
ImageRAII gradient_x( cvCreateImage( cvGetSize( image ), image->depth, grayscale.image->nChannels ) );
ImageRAII gradient_y( cvCreateImage( cvGetSize( image ), image->depth, grayscale.image->nChannels ) );
ImageRAII gradient( cvCreateImage( cvGetSize( image ), image->depth, grayscale.image->nChannels ) );
ImageRAII orientation( cvCreateImage( cvGetSize( image ), image->depth, grayscale.image->nChannels ) );
// convert image to grayscale
cvCvtColor( image, grayscale.image, CV_BGR2GRAY );
// gaussian smoothing
cvSmooth( grayscale.image, gaussian.image, CV_GAUSSIAN, GAUSSIAN_X, GAUSSIAN_Y, sigma );
// find edge strength
cvSobel( gaussian.image, gradient_x.image, 1, 0, 3 );
cvSobel( gaussian.image, gradient_y.image, 0, 1, 3 );
// find edge orientation
CvSize image_size = cvGetSize( gaussian.image );
for( int i = 0; i < image_size.width; i++ )
{
for( int j = 0; j < image_size.height; j++ )
{
double x = cvGet2D( gradient_x.image, j, i ).val[0];
double y = cvGet2D( gradient_y.image, j, i ).val[0];
float angle;
if( x == 0 )
{
if( y == 0 )
angle = 0;
else
angle = 90;
}
else
angle = cvFastArctan( y, x );
CvScalar g;
CvScalar a;
g.val[0] = cvSqrt( pow( x, 2 ) + pow( y, 2 ) );
a.val[0] = find_angle( angle );
cvSet2D( destination.image, j, i, g );
cvSet2D( orientation.image, j, i, a );
}
}
ImageRAII suppressed_image = nonMaxSup( destination.image, orientation.image );
ImageRAII hysteresis_image = hysteresis( suppressed_image.image, orientation.image, thresh );
cvNamedWindow( WINDOW_NAME );
cvShowImage( WINDOW_NAME, destination.image );
cvMoveWindow( WINDOW_NAME, image_size.width, 0 );
return hysteresis_image;
}
