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#include "mbed.h"
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#include "Terminal.h"
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#define MaxNo_Menu 5
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Terminal term(USBTX, USBRX); // tx, rx
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char *menu_list1[MaxNo_Menu] = { "Apple", "Pear", "Banana", "Kiwi", "Plum" };
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char *menu_list2[MaxNo_Menu] = { "Orange", "Peach", "Strawberry", "Blueberry", "Grapes" };
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int ypos[MaxNo_Menu] = { 3, 6, 9, 12, 15 };
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void InitScreen(void){ //Print all the fruits on the screen
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term.background(0xFF0000);
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term.foreground(0xFFFFFF);
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for(int i=0; i< MaxNo_Menu; i++){
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term.locate(5, ypos[i]);
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term.printf("%s",menu_list1[i]);
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term.locate(15, ypos[i]);
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term.printf("%s",menu_list2[i]);
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}
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}
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void UpdateScreen(int LastIndex, int LastColumn, int Index, int Column){ //Just update the fuits that has changed
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term.background(0xFFFFFF); //Highlight the new fruit
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term.foreground(0xFF0000);
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if(Column==0){
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term.locate(5, ypos[Index]);
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term.printf("%s",menu_list1[Index]);
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}
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else{
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term.locate(15, ypos[Index]);
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term.printf("%s",menu_list2[Index]);
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}
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term.background(0xFF0000); //Black out the old fruit
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term.foreground(0xFFFFFF);
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if(LastColumn==0){
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term.locate(5, ypos[LastIndex]);
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term.printf("%s",menu_list1[LastIndex]);
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}
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else{
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term.locate(15, ypos[LastIndex]);
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term.printf("%s",menu_list2[LastIndex]);
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}
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}
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int main() {
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int Key;
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int Index=0, Column=0, LastIndex=0, LastColumn=1;
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term.background(0xFF0000);
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term.foreground(0xFFFFFF);
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term.cls();
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term.locate(15,1);
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term.printf("What is your favourite fruit?");
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InitScreen();
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UpdateScreen(LastIndex, LastColumn,Index, Column);
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term.box(2,2,30,15);
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while(1){
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Key=term.getc(); //Get the keypad pressed
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if((Key>=0x30)&&(Key<=0x39)){ //See if it's a number (0-9)
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}
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else if(Key==0x1B){ //If the keypress was an arrow key
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Key = term.getc(); //Check again!
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if (Key == 0x5B){
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Key = term.getc();
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LastIndex=Index;
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LastColumn=Column;
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switch(Key){ //Check to see which arrow key...
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case 0x41: //It was the UP arrow key...
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Index--;
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if(Index<0)
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Index = MaxNo_Menu - 1;
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break;
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case 0x42: //It was the DOWN arrow key...
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Index++;
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if(Index >= MaxNo_Menu)
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Index = 0;
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break;
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case 0x43: //It was the RIGHT arrow key...
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Column++;
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if(Column>1)
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Column=0;
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break;
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case 0x44: //It was the LEFT arrow key...
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Column--;
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if(Column<0)
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Column=1;
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break;
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}
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UpdateScreen(LastIndex, LastColumn,Index, Column);
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}
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}
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else if(Key>=0x0D){ //See if it was ENTER
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term.locate(15,18);
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if(Column==0)
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term.printf("Your favourite fruit is %s ",menu_list1[Index]);
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else
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term.printf("Your favourite fruit is %s ",menu_list2[Index]);
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}
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}
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}
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Martin Smith