Miheer Bavare
Chess game on the mbed.
Dependencies: 4DGL-uLCD-SE PinDetect SDFileSystem mbed
Diff: main.cpp
- Revision:
- 1:af3a896cd76d
- Parent:
- 0:a5f9535b6e3d
--- a/main.cpp Mon Mar 14 02:45:47 2016 +0000
+++ b/main.cpp Mon Mar 14 16:37:51 2016 +0000
@@ -5,24 +5,18 @@
#include "PinDetect.h"
#include "Speaker.h"
-
uLCD_4DGL uLCD(p28,p27,p29); // serial tx, serial rx, reset pin;
-//need bluetooth https://developer.mbed.org/users/4180_1/notebook/adafruit-bluefruit-le-uart-friend---bluetooth-low-/
+//bluetooth for the player two controller
Serial blue(p13,p14); //serial tx, rx
-
-//joystick - declare pins and then have interrupt functions for each one
-
-//speaker - declare pins, may want to use it as pwm out instead of wav?
+//Using the speaker as a pwm out
Speaker mySpeaker(p21);
-//sd card - to hold the video file
-//SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card setup
+//set up the chess board as an int array
+int board[8][8]={0};
-int board[8][8]={0};
-int current_player = 1;
-//pieces
+//Set the pieces so we can refer to them by name
const int pawn=1;
const int rook=2;
const int knight=3;
@@ -30,9 +24,11 @@
const int queen=5;
const int king=6;
+//global variables to keep track of the current player and the winner
int winner = 0;
+int current_player = 1;
-
+//class declaration for the navswitch
class Nav_Switch
{
public:
@@ -52,10 +48,10 @@
};
private:
BusIn _pins;
-
+
};
Nav_Switch::Nav_Switch (PinName up,PinName down,PinName left,PinName right,PinName fire):
- _pins(up, down, left, right, fire)
+_pins(up, down, left, right, fire)
{
_pins.mode(PullUp); //needed if pullups not on board or a bare nav switch is used - delete otherwise
wait(0.001); //delays just a bit for pullups to pull inputs high
@@ -88,15 +84,16 @@
{
return _pins.read();
}
-
+
Nav_Switch p1( p9, p6, p7, p5, p8); //pin order on Sparkfun breakout
+
+//set the MBED leds up to signal information
DigitalOut myLed1(LED1);
DigitalOut myLed2(LED2);
DigitalOut myLed3(LED3);
DigitalOut myLed4(LED4);
-//I guess these need a color arguement too
-
+//functions for drawing the different chess pieces using uLCD member functions
void drawPawn(int x, int y, int Color) {
uLCD.filled_circle(x*16+8,y*16+5,2,Color);
uLCD.triangle(x*16+8,y*16+5,x*16+4,y*16+12,x*16+12,y*16+12,Color);
@@ -112,12 +109,10 @@
uLCD.filled_rectangle(x*16+4,y*16+6,x*16+12,y*16+8,Color);
}
void drawKnight(int x, int y, int Color) {
- //uLCD.filled_rectangle(x+3, y+2, x+8,y+4, RED);
uLCD.triangle(x*16+8,y*16+2,x*16+4,y*16+4,x*16+8,y*16+4,Color);
uLCD.filled_rectangle(x*16+7, y*16+2, x*16+9, y*16+10, Color);
uLCD.filled_rectangle(x*16+4, y*16+10, x*16+12, y*16+ 12, Color);
}
-
void drawRook(int x, int y, int Color) {
uLCD.filled_rectangle(x*16+2, y*16+4, x*16+ 14, y*16+6,Color);
uLCD.filled_rectangle(x*16+5, y*16+6, x*16+11, y*16+12, Color);
@@ -131,27 +126,29 @@
uLCD.filled_rectangle(x*16+7, y*16+4,x*16+9,y*16+10,Color);
uLCD.triangle(x*16+5,y*16+4,x*16+11,y*16+4,x*16+8,y*16,Color);
}
+
+//display_board sets up the board in the beginning of the game
void display_board(void)
{
- //uLCD.filled_rectangle(0, 0 , 127, 127, 0xefded1) ;
+ //this loop draws the board squares, alternating color
bool alternator = true;
for(int i=0; i<8; i++)//This loop will be executed for each row once
{
for(int j=0; j<8; j++) //This loop will be executed 7 times for each row
{
if (alternator) {
- uLCD.filled_rectangle(j*16,i*16,(j*16)+16,(i*16)+16, 0xbcb6b8);
+ uLCD.filled_rectangle(j*16,i*16,(j*16)+16,(i*16)+16, 0xbcb6b8); //draws a light tan (white) square
alternator = false;
} else {
- uLCD.filled_rectangle(j*16,i*16,(j*16)+16,(i*16)+16, 0x645659);
+ uLCD.filled_rectangle(j*16,i*16,(j*16)+16,(i*16)+16, 0x645659); //draws a dark brown (black) square
alternator = true;
}
}
alternator = !alternator;
}
- //pawns
- for(int i=0;i<8;i++)
+ //draw the pieces in their initial placement and update the board array
+ for(int i=0;i<8;i++) //set the pawns up in a for loop
{
drawPawn(i,1,BLACK);
board[i][1]= -pawn;
@@ -163,12 +160,12 @@
drawRook(7,0,BLACK);
board[0][0]=-rook;
board[7][0]=-rook;
-
+
drawRook(0,7,WHITE);
drawRook(7,7,WHITE);
board[0][7]=rook;
board[7][7]=rook;
-
+
drawKnight(1,0,BLACK);
drawKnight(6,0,BLACK);
board[1][0]=-knight;
@@ -201,15 +198,26 @@
drawKing(4,7,WHITE);
board[4][7]=king;
}
-//take in a piece coordinate and move it to the new spot
+//globals for castling - keep track of if the pieces have moved
+//false indicates they have not moved, mark true on a monement
+bool king1 = false;
+bool king2 = false;
+bool rook11 = false;
+bool rook12 = false;
+bool rook21 = false;
+bool rook22 = false;
+bool castling = false; //set this flag high in validMove so we know in movePiece
+
+//movePiece takes in a piece coordinate and moves it to a new spot
void movePiece(int ox, int oy, int dx, int dy, int player) {
+ //first clear the piece in the destination if a piece is being captured
if(board[dx][dy] !=0) {
if( (dx+dy)%2==0) { //moving to a white square
uLCD.filled_rectangle(dx*16,dy*16,(dx*16)+16,(dy*16)+16, 0xbcb6b8);
}
- else { //dark square
+ else { //moving to a dark square
uLCD.filled_rectangle(dx*16,dy*16,(dx*16)+16,(dy*16)+16, 0x645659);
}
}
@@ -219,19 +227,41 @@
uLCD.filled_rectangle(ox*16,oy*16,(ox*16)+16,(oy*16)+16, 0xbcb6b8);
}
- else { //dark square
+ else { //moving from a dark square
uLCD.filled_rectangle(ox*16,oy*16,(ox*16)+16,(oy*16)+16, 0x645659);
}
- //draw piece in the new square
- switch (abs(board[ox][oy])) {
+ //draw the piece in the new square
+ switch (abs(board[ox][oy])) { //switch based on the piece type
case pawn:
- drawPawn(dx,dy,player);
+ //if a pawn reaches the end of the line then promote it to a queen
+ if(current_player == 1 && dy == 0) { //white pawn reaches end of file
+ board[ox][oy] = queen;
+ drawQueen(dx,dy,player);
+ }
+
+ else if(current_player == 2 && dy == 7) { //black pawn reaches end of file
+ board[ox][oy] = -queen;
+ drawQueen(dx,dy,player);
+ }
+ else
+ drawPawn(dx,dy,player);
break;
-
case rook:
drawRook(dx,dy,player);
-
+ //this marks if rooks have moved or not (can only castle if false)
+ if(oy == 0) {
+ if(ox == 0) //black left rook
+ rook21 = true;
+ else if(ox==7) //black right rook
+ rook22 = true;
+ }
+ else if(oy == 7) {
+ if(ox == 0) //white rook 1
+ rook11 = true;
+ else if(ox==7) //white rook 2
+ rook12 = true;
+ }
break;
case knight:
@@ -246,10 +276,16 @@
drawQueen(dx,dy,player);
break;
- case king:
+ case king: //for king we also need to mark the king as moved
+ if(current_player == 1)
+ king1 = true;
+ else
+ king2 = true;
drawKing(dx,dy,player);
break;
}
+
+ //play two notes for a piece capture or one for a regular move
if(board[dx][dy] !=0)
{
mySpeaker.PlayNote(500.0,0.1,0.05);
@@ -258,257 +294,314 @@
else
mySpeaker.PlayNote(600.0,0.1,0.05);
-
+ //if the king is captured then mark then mark the correct player as winning
if(board[dx][dy] == 6)
winner = 2;
else if(board[dx][dy] == -6)
winner=1;
+
+ //adjust the board array for the piece movement
board[dx][dy] = board[ox][oy];
board[ox][oy] = 0;
+
+ //if we're castling we also need to move the rook
+ //first mark castling false then make a recursive call to the movePiece function to move the rook
+ if(castling) {
+ castling = false;
+ if(dx<ox) { //castling left
+ movePiece(0,oy,3,oy, player);
+ }
+ else { //castling right
+ movePiece(7,oy,5,oy, player);
+ }
+ }
}
-
-//should look at what piece is in old spot, redraw the square there and then draw piece in new spot
-int validMove(int ox, int oy, int dx, int dy){
+//this function takes in the location of a piece and the destination and outputs whether or not it is a valid move
+int validMove(int ox, int oy, int dx, int dy)
+{
int source = board[ox][oy];
int target = board[dx][dy];
int typePiece = abs(source);
+ //taking one of your own pieces is not allowed
if (board[ox][oy] > 0 && board[dx][dy]>0 || board[ox][oy] < 0 && board[dx][dy]<0)
return 0;
- if (typePiece == pawn){
- if(current_player == 2 && dx==ox && dy-oy==1 && target==0) return 1;
- if(current_player == 1 && dx==ox && dy-oy==-1 && target==0) return 1;
- if(abs(dx-ox)==1 && current_player == 2 && dy-oy==1 && target > 0) return 1;
- if(abs(dx-ox)==1 && current_player == 1 && dy-oy==-1 && target < 0) return 1;
- if(current_player == 2 && oy==1 && (abs(ox-dx)==0) && abs(oy-dy)==2 && target == 0) return 1;
- if(current_player == 1 && oy==6 && (abs(ox-dx)==0) &&(abs(oy-dy)==2) && target == 0) return 1;
-
- } else if (typePiece == rook) {
- if(dx==ox){ // Moving vertically
- if(dy>oy){ // Downards
- for(size_t row = (unsigned)(oy+1); row < (unsigned)dy; ++row){
- if(board[dx][row] != 0) return 0;
- }
- } else { // Upwards
- for(size_t row = (unsigned)dy+1; row < (unsigned)(oy); ++row){
- if(board[dx][row] != 0) return 0;
+
+ //movement rules for pawns
+ if (typePiece == pawn) {
+ if(current_player == 2 && dx==ox && dy-oy==1 && target==0) return 1;
+ if(current_player == 1 && dx==ox && dy-oy==-1 && target==0) return 1;
+ if(abs(dx-ox)==1 && current_player == 2 && dy-oy==1 && target > 0) return 1;
+ if(abs(dx-ox)==1 && current_player == 1 && dy-oy==-1 && target < 0) return 1;
+ if(current_player == 2 && oy==1 && (abs(ox-dx)==0) && abs(oy-dy)==2 && target == 0) return 1;
+ if(current_player == 1 && oy==6 && (abs(ox-dx)==0) &&(abs(oy-dy)==2) && target == 0) return 1;
+
+ //movement rules for rooks
+ } else if (typePiece == rook) {
+ if(dx==ox){ // Moving vertically
+ if(dy>oy){ // Downards
+ for(size_t row = (unsigned)(oy+1); row < (unsigned)dy; ++row){
+ if(board[dx][row] != 0) return 0;
+ }
+ } else { // Upwards
+ for(size_t row = (unsigned)dy+1; row < (unsigned)(oy); ++row){
+ if(board[dx][row] != 0) return 0;
+ }
+ }
+ return 1;
}
- }
- return 1;
- }
- if(dy==oy){ // Moving horizontally
- if(dx>ox){ // Rightwards
- for(size_t column = (unsigned)(ox+1); column < (unsigned)dx; ++column){
- if(board[column][dy] != 0) return 0;
- }
- }
- if(dx<ox){ // Leftwards
- for(size_t column = (unsigned)dx+1; column < (unsigned)(ox); ++column){
- if(board[column][dy] != 0) return 0;
- }
- }
- return 1;
- }
- return 0;
- } else if (typePiece == knight) {
-
- if((abs(dy-oy)==2 && abs(dx-ox)==1) || (abs(dx-ox)==2 && abs(dy-oy)==1)){
- return 1;
+ if(dy==oy){ // Moving horizontally
+ if(dx>ox){ // Rightwards
+ for(size_t column = (unsigned)(ox+1); column < (unsigned)dx; ++column){
+ if(board[column][dy] != 0) return 0;
+ }
+ }
+ if(dx<ox){ // Leftwards
+ for(size_t column = (unsigned)dx+1; column < (unsigned)(ox); ++column){
+ if(board[column][dy] != 0) return 0;
+ }
+ }
+ return 1;
}
return 0;
- } else if (typePiece ==bishop) {
- // Bishop
- if (abs(dx-ox) != abs(dy-oy))
+
+ //movement rules for the knight
+ } else if (typePiece == knight) {
+
+ if((abs(dy-oy)==2 && abs(dx-ox)==1) || (abs(dx-ox)==2 && abs(dy-oy)==1)){
+ return 1;
+ }
+ return 0;
+
+ //movement rules for bishops
+ } else if (typePiece == bishop) {
+ if (abs(dx-ox) != abs(dy-oy)) //must move diagonally
return 0;
-
- int ymult = -1;
- int xmult = -1;
- if (dx>ox)
- xmult = 1;
- if (dy>oy)
- ymult = 1;
-
- for(int i=1; i < abs(dx-ox); ++i)
- {
- if(board[ox + i*xmult][oy+i*ymult] != 0) return 0;
- }
- return 1;
-
- } else if (typePiece ==queen) {
-
- // Queen
- if(abs(dx-ox) == abs(dy-oy)) {
int ymult = -1;
int xmult = -1;
if (dx>ox)
xmult = 1;
if (dy>oy)
ymult = 1;
-
+ //check all the spots between location and destination on the diagonal for pieces
for(int i=1; i < abs(dx-ox); ++i)
{
if(board[ox + i*xmult][oy+i*ymult] != 0) return 0;
}
+ return 1;
+
+ //movement rules for queens
+ } else if (typePiece ==queen) {
+ // Queen
+ if(abs(dx-ox) == abs(dy-oy)) { //diagonal movement
+ int ymult = -1;
+ int xmult = -1;
+ if (dx>ox)
+ xmult = 1;
+ if (dy>oy)
+ ymult = 1;
+
+ for(int i=1; i < abs(dx-ox); ++i)
+ {
+ if(board[ox + i*xmult][oy+i*ymult] != 0) return 0;
+ }
return 1;
+ }
+
+ if(dx==ox){ // Moving vertically
+ if(dy>oy){ // Downards
+ for(size_t row = (unsigned)(oy+1); row < (unsigned)dy; ++row){
+ if(board[dx][row] != 0) return 0;
+ }
+ } else { // Upwards
+ for(size_t row = (unsigned)dy+1; row < (unsigned)(oy); ++row){
+ if(board[dx][row] != 0) return 0;
+ }
+ }
+ return 1;
+ }
+ if(dy==oy){ // Moving horizontally
+ if(dx>ox){ // Rightwards
+ for(size_t column = (unsigned)(ox+1); column < (unsigned)dx; ++column){
+ if(board[column][dy] != 0) return 0;
+ }
+ }
+ if(dx<ox){ // Leftwards
+ for(size_t column = (unsigned)dx+1; column < (unsigned)(ox); ++column){
+ if(board[column][dy] != 0) return 0;
+ }
+ }
+ return 1;
+ }
+ return 0;
+
+ //movement rules for a king
+ } else if (typePiece ==king) {
+
+ //special exception for castling
+ if(dy == oy && ox-2 == dx && (!king1 && current_player == 1 && !rook11 || !king2 && current_player==2 && !rook21))
+ {
+ if(board[ox-1][oy] ==0 && board[ox-2][oy] ==0 && board[ox-3][oy]==0) {
+ castling = true;
+ return 1; //king can castle to the left
+ }
+ }
+ else if(dy == oy && ox + 2 == dx && (!king1 && current_player == 1 && !rook12 || !king2 && current_player==2 && !rook22))
+ {
+ if(board[ox+1][oy] ==0 && board[ox+2][oy] ==0){
+ castling = true;
+ return 1; //king can castle to the right
+ }
+ }
+
+ if(abs(dy-oy)<=1 && abs(dx-ox)<=1) return 1;
+ return 0;
}
- if(dx==ox){ // Moving vertically
- if(dy>oy){ // Downards
- for(size_t row = (unsigned)(oy+1); row < (unsigned)dy; ++row){
- if(board[dx][row] != 0) return 0;
- }
- } else { // Upwards
- for(size_t row = (unsigned)dy+1; row < (unsigned)(oy); ++row){
- if(board[dx][row] != 0) return 0;
- }
- }
- return 1;
- }
- if(dy==oy){ // Moving horizontally
- if(dx>ox){ // Rightwards
- for(size_t column = (unsigned)(ox+1); column < (unsigned)dx; ++column){
- if(board[column][dy] != 0) return 0;
- }
- }
- if(dx<ox){ // Leftwards
- for(size_t column = (unsigned)dx+1; column < (unsigned)(ox); ++column){
- if(board[column][dy] != 0) return 0;
- }
- }
- return 1;
- }
- return 0;
-
- } else if (typePiece ==king) {
- if(abs(dy-oy)<=1 && abs(dx-ox)<=1) return 1;
- return 0;
- }
-
- return 0;
+ return 0;
}
-
+//naming the pins for the joystick
PinDetect up(p26);
PinDetect center(p25);
PinDetect left(p24);
PinDetect down(p23);
PinDetect right(p22);
+
+//variables for the joystick interrupt functions
volatile int x = 4;
volatile int y = 6;
volatile int x2 = 4;
volatile int y2 = 2;
volatile bool center_hit = false;
+
+//joystick interrupt functions that control which square is selected
void up_hit_callback(void) {
--y;
if(y<0)
y=7;
- }
+}
void down_hit_callback(void) {
y = (y+1)%8;
- }
+}
void left_hit_callback(void) {
--x;
if(x<0)
x=7;
- }
+}
void right_hit_callback(void) {
x = (x+1)%8;
- }
+}
void center_hit_callback(void) {
center_hit = true;
- }
-
-
+}
int main() {
-
- center.attach_deasserted(¢er_hit_callback);
- left.attach_deasserted(&left_hit_callback);
- right.attach_deasserted(&right_hit_callback);
- up.attach_deasserted(&up_hit_callback);
- down.attach_deasserted(&down_hit_callback);
-
- center.setSampleFrequency();
- left.setSampleFrequency();
- right.setSampleFrequency();
- down.setSampleFrequency();
- up.setSampleFrequency();
+
+ //set up the interrupt functions for the joystick
+ center.attach_deasserted(¢er_hit_callback);
+ left.attach_deasserted(&left_hit_callback);
+ right.attach_deasserted(&right_hit_callback);
+ up.attach_deasserted(&up_hit_callback);
+ down.attach_deasserted(&down_hit_callback);
+ center.setSampleFrequency();
+ left.setSampleFrequency();
+ right.setSampleFrequency();
+ down.setSampleFrequency();
+ up.setSampleFrequency();
+
+ //setup the board
+ display_board();
-
- display_board();
- int oldx = 4;
- int oldx2 = 4;
- int oldy = 6;
- int oldy2 = 1;
- int selectedx;
- int selectedy;
- bool selected=false;
- int selectedx2;
- int selectedy2;
- bool selected2 = false;
- uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, GREEN);
+ //set the default cursor locations
+ int oldx = 4;
+ int oldx2 = 4;
+ int oldy = 6;
+ int oldy2 = 1;
+
+ //control variables for p1 and p2
+ int selectedx;
+ int selectedy;
+ bool selected=false;
+ int selectedx2;
+ int selectedy2;
+ bool selected2 = false;
+
+ //draw the initial cursor
+ uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, GREEN);
- while(1) {
- while(current_player==1) {
- //put a border around selected square
- myLed4 = 0;
- myLed1 = selected;
- if(x != oldx || y != oldy) {
- mySpeaker.PlayNote(969.0,0.05,0.05);
- if(oldx % 2 == oldy %2)
- uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, 0xbcb6b8);
- else
- uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, 0x645659);
-
- uLCD.rectangle(x*16,y*16,(x*16)+16,(y*16)+16, GREEN);
- oldx = x;
- oldy = y;
- }
-
- if (center_hit) {
- if(board[oldx][oldy] > 0 || selected)
- {
- if(selected) {
+ //the overall game loop
+ while(1) {
+ //the loop for player one
+ while(current_player==1) {
+ myLed4 = 0; //this led indicates okayer
+ myLed1 = selected; //this led indicates whether or not a piece has been selected
+
+ //if the selected square has moved
+ if(x != oldx || y != oldy) {
+ mySpeaker.PlayNote(969.0,0.05,0.05); //play a noise for cursor movement
+
+ //delete the old selector
+ if(oldx % 2 == oldy %2)
+ uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, 0xbcb6b8);
+ else
+ uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, 0x645659);
+
+ //draw the new cursor
+ uLCD.rectangle(x*16,y*16,(x*16)+16,(y*16)+16, GREEN);
+
+ //record the old cursor location
+ oldx = x;
+ oldy = y;
+ }
+
+ if (center_hit) {
+ if(board[oldx][oldy] > 0 || selected) {
+ if(selected) { //if a piece has already been selected
//check move, make move and change turn if valid
- if(selectedx == oldx && selectedy==oldy) { //deselect piece by clicking on it again
+ if(selectedx == oldx && selectedy==oldy) { //deselect piece by clicking on it again
+ selected = false;
+ } else {
+ if (validMove(selectedx, selectedy, oldx, oldy) ==1) { //if the move is valid make the move and swith turns
+ movePiece(selectedx, selectedy, oldx, oldy, WHITE);
selected = false;
- }
- else {
- if(validMove(selectedx, selectedy, oldx, oldy) ==1) {
- movePiece(selectedx, selectedy, oldx, oldy, WHITE);
- selected = false;
- current_player = 2;
- if(oldx % 2 == oldy %2)
- uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, 0xbcb6b8);
- else
- uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, 0x645659);
-
- uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, BLUE);
- }
+ current_player = 2;
+
+ //erase the player one selector
+ if(oldx % 2 == oldy %2)
+ uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, 0xbcb6b8);
+ else
+ uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, 0x645659);
+
+ //draw the player two selector
+ uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, BLUE);
}
}
- else
- {
- selected = true;
- selectedx = oldx;
- selectedy = oldy;
- }
-
- }
- center_hit =false;
+ } else { //if no piece is selected select the piece being clicked on
+ selected = true;
+ selectedx = oldx;
+ selectedy = oldy;
+ }
+
}
+ center_hit =false; //set the center hit flag to false
+ }
- }
+ }
+ //the loop for player two
while(current_player==2 && winner!=1)
{
- myLed4 = 1;
+ myLed4 = 1; //this indicates that it is player twos turn
+ myLed1 = selected2; //shows whether or not a piece is selected
+ //variables for the bluetooth
char bnum=0;
char bhit=0;
- myLed1 = selected2;
bool one_hit = false;
+
+ //this reads input from the bluetooth and adjusts the location of the cursor or registers a selection
if (blue.getc()=='!') {
if (blue.getc()=='B') { //button data packet
bnum = blue.getc(); //button number
@@ -516,103 +609,99 @@
if (blue.getc()==char(~('!' + 'B' + bnum + bhit))) { //checksum OK?
switch (bnum) {
case '1': //number button 1
- if (bhit=='1') {
- one_hit = true;
- }
+ if (bhit=='1') {
+ one_hit = true;
+ }
break;
case '5': //button 5 up arrow
- if (bhit=='1') {
+ if (bhit=='1') {
//y2 = (y2-1)%8;
- --y2;
- if(y2<0)
- y2=7;
- }
+ --y2;
+ if(y2<0)
+ y2=7;
+ }
break;
case '6': //button 6 down arrow
- if (bhit=='1') {
- y2 = (y2+1)%8;
- }
+ if (bhit=='1') {
+ y2 = (y2+1)%8;
+ }
break;
case '7': //button 7 left arrow
- if (bhit=='1') {
+ if (bhit=='1') {
//x2 = (x2-1)%8;
- --x2;
- if(x2<0)
- x2=7;
- }
+ --x2;
+ if(x2<0)
+ x2=7;
+ }
break;
case '8': //button 8 right arrow
- if (bhit=='1') {
- x2 = (x2+1)%8;
- }
+ if (bhit=='1') {
+ x2 = (x2+1)%8;
+ }
break;
}
-
- if(x2 != oldx2 || y2 != oldy2)
- {
- mySpeaker.PlayNote(800.0,0.05,0.05);
- if(oldx % 2 == oldy2 %2)
- uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, 0xbcb6b8);
- else
- uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, 0x645659);
-
- uLCD.rectangle(x2*16,y2*16,(x2*16)+16,(y2*16)+16, BLUE);
- oldx2 = x2;
- oldy2 = y2;
- }
-
- if (one_hit) {
- if(board[oldx2][oldy2] < 0 || selected2) {
- if(selected2) {
- //check move, make move and change turn if valid
- if(selectedx2 == oldx2 && selectedy2 == oldy2) {
- selected2 = false;
- }
- else {
- if(validMove(selectedx2, selectedy2, oldx2, oldy2)) {
- movePiece(selectedx2, selectedy2, oldx2, oldy2, BLACK);
- selected2 = false;
- current_player = 1;
- if(oldx % 2 == oldy2 %2)
- uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, 0xbcb6b8);
- else
- uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, 0x645659);
- uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, GREEN);
- }
- }
+ //sames as in player 1, play a sound and move the selection box if necessary
+ if(x2 != oldx2 || y2 != oldy2)
+ {
+ mySpeaker.PlayNote(800.0,0.05,0.05);
+ if(oldx % 2 == oldy2 %2)
+ uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, 0xbcb6b8);
+ else
+ uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, 0x645659);
+
+ uLCD.rectangle(x2*16,y2*16,(x2*16)+16,(y2*16)+16, BLUE);
+ oldx2 = x2;
+ oldy2 = y2;
}
- else
- {
- selected2 = true;
- selectedx2 = oldx2;
- selectedy2 = oldy2;
- }
- one_hit =false;
+
+ //if the selection button was pressed select/ deselect the piece or attempt to make a move
+ if (one_hit) {
+ if(board[oldx2][oldy2] < 0 || selected2) {
+ if(selected2) {
+ //check move, make move and change turn if valid
+ if(selectedx2 == oldx2 && selectedy2 == oldy2) {
+ selected2 = false;
+ }
+ else {
+ if(validMove(selectedx2, selectedy2, oldx2, oldy2)) {
+ movePiece(selectedx2, selectedy2, oldx2, oldy2, BLACK);
+ selected2 = false;
+ current_player = 1;
+ if(oldx % 2 == oldy2 %2)
+ uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, 0xbcb6b8);
+ else
+ uLCD.rectangle(oldx2*16,oldy2*16,(oldx2*16)+16,(oldy2*16)+16, 0x645659);
+ uLCD.rectangle(oldx*16,oldy*16,(oldx*16)+16,(oldy*16)+16, GREEN);
+ }
+ }
+ }
+ else
+ {
+ selected2 = true;
+ selectedx2 = oldx2;
+ selectedy2 = oldy2;
+ }
+ one_hit =false;
+ }
+ }
}
- }
-
-
-
- }
- }
-
+ }
}
-
}
- while(winner) {
- uLCD.cls();
- uLCD.printf("Player %i wins", winner);
- while(1) {
+ //if someone won the game then display the winner and play the video
+ if(winner) {
+ uLCD.cls();
+ uLCD.printf("Player %i wins", winner);
+ wait(1);
+ while(1) {
- uLCD.media_init();
- uLCD.set_sector_address(0x0000, 0x00);
- uLCD.display_video(0,0);
+ uLCD.media_init();
+ uLCD.set_sector_address(0x0000, 0x00);
+ uLCD.display_video(0,0);
+ }
+ }
+ }
}
- }
-
-
-
- }
-}
+
\ No newline at end of file