int main() {
screen next_screen = HOME;
populate_values();
snprintf(msg, MSG_LEN, "-");
n_keys = 0;
while (next_screen != EXIT) {
switch (next_screen) {
case HOME:
next_screen = home_screen();
break;
case ABOUT:
next_screen = about_screen();
break;
case RUN:
next_screen = run_screen();
break;
case RUNNING:
next_screen = running_screen();
break;
case EXIT:
break;
}
}
snprintf(msg, MSG_LEN, " Saindo da aplicação");
goodbye();
return 0;
}
//Toggle between zoom in and zoom out
void do_zoom(){
Point sel = {0,0};
if (zoom_level == ZOOM_IN){
zoom_level = ZOOM_OUT;
}
else {
zoom_level = ZOOM_IN;
do{
sel = GetPress();
} while(sel.y > image_height[ZOOM_OUT] || sel.x > image_width[ZOOM_OUT]);
sel = convert_pnt_to_zoom_in(sel);
//we pass draw_image in the top left corner, sel should be the centre of the image
sel.x -= DISPLAY_WIDTH/2;
sel.y -= DISPLAY_HEIGHT/2;
if(sel.x < 0)
sel.x = 0;
else if(sel.x > (image_width[ZOOM_IN] - DISPLAY_WIDTH))
sel.x = image_width[ZOOM_IN] - DISPLAY_WIDTH;
if(sel.y < 0)
sel.y = 0;
else if(sel.y > (image_height[ZOOM_IN] - DISPLAY_HEIGHT))
sel.y = image_height[ZOOM_IN] - DISPLAY_HEIGHT;
}
curr_image_pos = sel;
draw_full_image();
about_screen();
ZOOM_BUTT.prs_p(ZOOM_BUTT);
re_draw_path();
}
// Ask for a start and end node and find the best directions
void do_dir(){
int start_node = get_start_node();
if (road_only && !vertex_had_road_edge(full_map_graph, start_node)){
draw_information_box("YOUR CURRENT LOCATION HAS NO ROAD ACCESS. PLEASE TURN OFF THE ROADS BUTTON.");
DIR_BUTT.prs_p(DIR_BUTT);
return;
}
draw_information_box("PLEASE SELECT DESTINATION");
end_node = get_node(full_map_graph);
if (end_node == -1){
DIR_BUTT.prs_p(DIR_BUTT);
about_screen();
return;
}
if (road_only && !vertex_had_road_edge(full_map_graph, end_node)){
draw_information_box("YOUR SELECTED LOCATION HAS NO ROAD ACCESS. PLEASE TURN OFF THE ROADS BUTTON.");
DIR_BUTT.prs_p(DIR_BUTT);
return;
}
load_and_draw_graph_path(full_map_graph, start_node, end_node, road_only, PURPLEPIZZAZZ);
draw_information_box("HAVE A FUN TRIP!");
DIR_BUTT.prs_p(DIR_BUTT);
}
// Display info of the next node touched
void do_info(){
draw_information_box("SELECT A MAP POINT TO OBTAIN ITS INFORMATION.");
char* info = get_node_info(full_map_graph);
if (info == NULL) {
about_screen();
INFO_BUTT.prs_p(INFO_BUTT);
return;
}
free(info);
info_screen(info);
INFO_BUTT.prs_p(INFO_BUTT);
}
// Leave search mode and redraw the map
void do_back(){
reset_query();
destroy_matches();
draw_full_image();
about_screen();
}
// Display app about
void do_about(void* nothing){
about_screen();
}
