/*#############################################################

Program Name    : ex4_F469NI_LCDBouncingBall
Author          : Grant Phillips
Date Modified   : 22/09/2016
Compiler        : ARMmbed
Tested On       : DISCO-F469NI

Description     : Example program that demonstrates animation 
                  using a bouncing ball on the DSI TFT LCD.

Requirements    : * DISCO-F469NI Board
              
Circuit         : * NONE

##############################################################*/

#include "mbed.h"
#include "LCD_DISCO_F469NI.h"

#define BALL_RADIUS     30

LCD_DISCO_F469NI lcd;       //Create a LCD_DISCO_F469NI object

int main() {      
    uint16_t x = 120, y = 160;
    int8_t xdir= -1, ydir= -1;
    
    lcd.Clear(LCD_COLOR_BLACK);                           
    
    /* Draw initial ball */
    lcd.SetTextColor(LCD_COLOR_RED);
    //lcd.FillCircle(x,y,BALL_RADIUS);
    lcd.DrawCircle(x,y,BALL_RADIUS);
    
    wait(1.0);
    
    while(1) {      
        /* delete the old ball by filling it with black color at the old x and y position */
        lcd.SetTextColor(LCD_COLOR_BLACK);
        //lcd.FillCircle(x,y,BALL_RADIUS);
        lcd.DrawCircle(x,y,BALL_RADIUS);
        
        /* calculate the new x and y position */
        if(x == (0 + BALL_RADIUS))
            xdir = 1;
        if(x == (799 - BALL_RADIUS))
            xdir = -1;
        if(y == (0 + BALL_RADIUS))
            ydir = 1;
        if(y == (479 - BALL_RADIUS))
            ydir = -1;
        x = x + xdir;
        y = y + ydir;
        
        /* draw a new ball at the new x and y position */
        lcd.SetTextColor(LCD_COLOR_RED);
        //lcd.FillCircle(x,y,BALL_RADIUS);  
        lcd.DrawCircle(x,y,BALL_RADIUS);
        
        /* delay to slow down the ball */
        wait(0.01);
    }
}