File content as of revision 7:c49f3d3b672f:

/*
ELEC2645 Embedded Systems Project
School of Electronic & Electrical Engineering
University of Leeds
2019/20

Name:Zeyu Feng
Username:el19zf
Student ID Number:201377605
Date:11/3/2020
*/

// includes
#include "mbed.h"
#include "Gamepad.h"
#include "N5110.h"
#include "People.h"
#include "PeopleEngine.h"
#include "shot.h"


// objects
Gamepad pad;
N5110 lcd;
PeopleEngine engine;
shot shot;

//flag and triggers
Ticker ticker;
volatile int timer_flag = 0;

//    functions
void flip()
{
    timer_flag = 1;
}
void init();
void control_people();
void shot_update();


int main()
{
    //initial
    init();

    ticker.attach(&flip,5);

    //a infinite loop to control position of the people, update the game state
    while(1) {
        if(timer_flag == 1) {
            timer_flag = 0;
            if(shot._size < 30)
                shot._size = shot._size + 2;
        }
        lcd.clear();
        //   people
        control_people();
        shot_update();
        lcd.refresh();
        //printf("shot refresh\n");
        //printf("size = %d\n",shot._size);
        wait_ms(200);//fps = 5

    }

}


void init()
{
    lcd.init();
    lcd.setContrast(0.5);
    engine.init();
    pad.init();
    shot.init();
    lcd.refresh();
}

void control_people()
{
    engine.read_input(pad);
    engine.update();
    engine.draw(lcd);
}
void shot_update()
{
    shot.update();
    shot.delete_shot();
    shot.gen_shot();
    shot.draw(lcd);
}