File content as of revision 0:ffed9a3bc797:

// Student Side.

#include "mbed.h"

#include "SDFileSystem.h"
#include "wave_player.h"
#include "game_synchronizer.h"
#include "tank.h"
#include "bullet.h"
#include "globals.h"
#include "playSound.h"


DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut led4(LED4);

DigitalIn pb_u(p21);                        // Up Button
DigitalIn pb_r(p22);                        // Right Button
DigitalIn pb_d(p23);                        // Down Button
DigitalIn pb_l(p24);                        // Left Button

Serial pc(USBTX, USBRX);                    // Serial connection to PC. Useful for debugging!
MMA8452 acc(p9, p10, 100000);               // Accelerometer (SDA, SCL, Baudrate)
uLCD_4DGL uLCD(p28,p27,p29);                // LCD (tx, rx, reset)
SDFileSystem sd(p5, p6, p7, p8, "sd");      // SD  (mosi, miso, sck, cs)
AnalogOut DACout(p18);                      // speaker
wave_player player(&DACout);                // wav player
Game_Synchronizer sync(PLAYER1);            // Game_Synchronizer (PLAYER)
Timer frame_timer;                          // Timer

// Global variables go here.

int winner = -1;
int whose_turn = PLAYER1;
int p1score = 0;
int p2score = 0;
int skyChange = 0;
int SKY_COLOR = 0x7EC0EE;
int SKY_COLOR2 = 0x0033cc;


// Ask the user whether to run the game in Single- or Multi-Player mode.
// Note that this function uses uLCD instead of sync because it is only 
// writing to the local (Player1) lcd. Sync hasn't been initialized yet,
// so you can't use it anyway. For the same reason, you must access
// the buttons directly e.g. if( !pb_r ) { do something; }.

// return MULTI_PLAYER if the user selects multi-player.
// return SINGLE_PLAYER if the user selects single-player.

FILE *wave_file;
int game_menu(void) {
    uLCD.baudrate(BAUD_3000000);
    
    // the locate command tells the screen where to place the text.
    uLCD.cls();
    uLCD.locate(2,2);
    uLCD.puts("Press Left for");
    uLCD.locate(2,3);
    uLCD.puts("Single Player");
    uLCD.locate(2,5);
    uLCD.puts("Press Right for");
    uLCD.locate(2,6);
    uLCD.puts("Multi-Player");
    
    // Button Example:
    // Use !pb_r to access the player1 right button value.
    // Eventually you should return SINGLE_PLAYER or MULTI_PLAYER
    // depending on the user's choice.
    
    while(true) {
        if (!pb_l) {
            uLCD.cls();
            uLCD.locate(2,2);
            uLCD.puts("Press Up");
            uLCD.locate(2,3);
            uLCD.puts("For nighttime.");
            uLCD.locate(2,5);
            uLCD.puts("Press Down");
            uLCD.locate(2,6);
            uLCD.puts("For daytime.");
            while(true) {
                if (!pb_u) {
                    skyChange = 1;
                    SKY_COLOR = SKY_COLOR2;
                    return SINGLE_PLAYER;
                }
                if (!pb_d) {
                    return SINGLE_PLAYER;
                }
            }
        }
        if (!pb_r) {
            uLCD.cls();
            uLCD.locate(2,2);
            uLCD.puts("Press Up");
            uLCD.locate(2,3);
            uLCD.puts("For nighttime.");
            uLCD.locate(2,5);
            uLCD.puts("Press Down");
            uLCD.locate(2,6);
            uLCD.puts("For daytime.");
            while(true) {
                if (!pb_u) {
                    skyChange = 1;
                    SKY_COLOR = SKY_COLOR2;
                    return MULTI_PLAYER;
                }
                if (!pb_d) {
                    return MULTI_PLAYER;
                }
            }
        }
    }
}

// Initialize the world map. I've provided a basic map here,
// but as part of the assignment you must create more
// interesting map(s).
// Note that calls to sync.function() will run function()
// on both players' LCDs (assuming you are in multiplayer mode).
// In single player mode, only your lcd will be modified. (Makes sense, right?)
void map_init() {
    
    // Fill the entire screen with sky blue.
    sync.background_color(SKY_COLOR);
    
    // Call the clear screen function to force the LCD to redraw the screen
    // with the new background color.
    sync.cls();
    
    // Draw the ground in green.
    sync.filled_rectangle(0,0,128,20, GND_COLOR);
    
    // Draw some obstacles. They don't have to be black, 
    // but they shouldn't be the same color as the sky or your tanks.
    // Get creative here. You could use brown and grey to draw a mountain
    // or something cool like that.
    
    sync.filled_rectangle(40, 40, 45, 90, AQUA);
    sync.filled_rectangle(50, 30, 55, 70, PURPLE);
    sync.filled_rectangle(59, 20, 69, 60, BLACK);
    sync.filled_rectangle(74, 30, 79, 70, PURPLE);
    sync.filled_rectangle(84, 40, 89, 90, AQUA);
    
    // Before you write text on the screens, tell the LCD where to put it.
    sync.locate(0,15);
    
    // Set the text background color to match the sky. Just for looks.
    sync.textbackground_color(SKY_COLOR);
    
    // Display the game title.
    char title[] = "       Tanks";
    sync.puts(title, sizeof(title));
    
    // Flush the draw buffer and execute all the accumulated draw commands.
    sync.update();          
}

// Initialize the game hardware. 
// Call game_menu to find out which mode to play the game in (Single- or Multi-Player)
// Initialize the game synchronizer.
void game_init(void) {
    
    led1 = 0; led2 = 0; led3 = 0; led4 = 0;
    
    pb_u.mode(PullUp);
    pb_r.mode(PullUp); 
    pb_d.mode(PullUp);    
    pb_l.mode(PullUp);
    
    int mode = game_menu();
    sync.init(&uLCD, &acc, &pb_u, &pb_r, &pb_d, &pb_l, mode); // Connect to the other player.
    map_init();
}

// Display some kind of game over screen which lets us know who won.
// Play a cool sound!
int game_over() {
    int i = 0;
    playSound("/sd/wavfiles/cheering.wav");
    
    // score keeping
    char* toPrint1 = new char [7];
    char* toPrint2 = new char [7];
    toPrint1[6] = '\0';
    toPrint2[6] = '\0';
    sprintf(&toPrint1[0], "P1: %d", p1score);
    sprintf(&toPrint2[0], "P2: %d", p2score);
    
    while(1) {
        sync.cls();
        // animated winning screen
        sync.locate(i + 2, 10);
        if (winner == PLAYER1) {
            sync.puts("P1 WINS!\n", sizeof("P1 WINS!\n"));
        } else if (winner == PLAYER2) {
            sync.puts("P2 WINS!\n", sizeof("P2 WINS!\n"));
        }
        sync.locate(2, 8);
        sync.puts(toPrint1, 8);
        sync.locate(9, 8);
        sync.puts(toPrint2, 8);
        sync.locate(2, 6);
        sync.puts("Press up to\n", sizeof("Press up to\n"));
        sync.locate(2, 5);
        sync.puts("continue!\n", sizeof("continue!\n"));
        sync.update();
        (++i) %= 7;
        wait(0.1);
        // restart the game if up is pressed
        if (!pb_u) {
            return 1;
        }
    }
}

void menuSound(void const *argument)
{
    FILE *wf;
    wf=fopen("/sd/wavfiles/applause.wav","r");
    player.play(wf);
    fclose(wf);
}


int main (void) {
    int* p1_buttons;
    int* p2_buttons;
    
    float ax1, ay1, az1;
    float ax2, ay2, az2;
    
    // play menu sound
    Thread thread1(menuSound);
    game_init();
        
    int restart = 1;
    while (restart == 1) {
        map_init();
        
        // Create your tanks.
        Tank t1(4, 21, 12, 8, TANK_RED);            // (min_x, min_y, width, height, color)
        Tank t2(111, 21, 12, 8, TANK_BLUE);         // (min_x, min_y, width, height, color)
        
        // For each tank, create a bullet.
        Bullet b1(&t1);
        Bullet b2(&t2);
        
        // change skycolor
        t1.changeSky(SKY_COLOR);
        t2.changeSky(SKY_COLOR);
        b1.changeSky(SKY_COLOR);
        b2.changeSky(SKY_COLOR);
        
        // reset these values at the start of every round
        restart = 0;
        whose_turn = PLAYER1;
        frame_timer.start();
        
        // Your code starts here...
        while(true) {
    
            // Get a pointer to the buttons for both sides.
            // From now on, you can access the buttons for player x using
            //
            // px_buttons[U_BUTTON] 
            // px_buttons[R_BUTTON] 
            // px_buttons[D_BUTTON] 
            // px_buttons[L_BUTTON]
            
            p1_buttons = sync.get_p1_buttons();
            p2_buttons = sync.get_p2_buttons();
            
            led1 = p1_buttons[0] ^ p2_buttons[0];
            led2 = p1_buttons[1] ^ p2_buttons[1];
            led3 = p1_buttons[2] ^ p2_buttons[2];
            led4 = p1_buttons[3] ^ p2_buttons[3];
    
            // Get the accelerometer values.
            sync.get_p1_accel_data(&ax1, &ay1, &az1);
            sync.get_p2_accel_data(&ax2, &ay2, &az2);
    
            if(whose_turn == PLAYER1) {
                
                // delete old triangle on the other player
                sync.triangle(118, 120, 118, 125, 123, 120, SKY_COLOR);
                // triangle above player's turn
                sync.triangle(5, 120, 5, 125, 10, 120, GREEN);
                sync.update();
                
                // Accelerometer
                if(ax1 > ACC_THRESHOLD) { 
                    // left
                    t1.reposition(-1, 0, 0);          
                } else if(ax1 < -1 * ACC_THRESHOLD) {
                    //right
                    t1.reposition(+1, 0, 0);          
                }
                if(ay1 > ACC_THRESHOLD) {
                    // up
                    t1.reposition(0, 0, +1);
                } else if(ay1 < -1 * ACC_THRESHOLD) {
                    // down
                    t1.reposition(0, 0, -1);
                }
                
                // power up button
                if(p1_buttons[U_BUTTON]) { 
                    b1.powerUp();
                }
                // shoot button
                if(p1_buttons[D_BUTTON]) { 
                    b1.shoot(); 
                }
                
                float dt = frame_timer.read();
                int intersection_code = b1.time_step(dt);
                
                // If you shot yourself, you lost.
                if(sync.pixel_eq(intersection_code, t1.tank_color)) {
                    sync.update();  // Is this necessary?
                    winner = PLAYER2;
                    p2score = p2score + 1;
                    break;
                }
                // If you shot the other guy, you won!
                if(sync.pixel_eq(intersection_code, t2.tank_color)) { 
                    sync.update();
                    winner = PLAYER1;
                    p1score = p1score + 1;
                    break;
                }
                // keep playing
                if(intersection_code != BULLET_NO_COLLISION || intersection_code == BULLET_OFF_SCREEN) {
                    whose_turn = PLAYER2;
                }
            } else if(whose_turn == PLAYER2) {
                // I gave you a lot of the logic for Player1. It's up to you to figure out Player2!
                // If you are in SINGLE_PLAYER mode, you should use the p1 inputs to control p2.
                // In MULTI_PLAYER mode, you should use the p2 inputs to control p2.
                //
                // Hint: 
                //         sync.play_mode will tell you if you are in MULTI_PLAYER or SINGLE_PLAYER mode.
                //         
                
                // deletes triangle above other player
                sync.triangle(5, 120, 5, 125, 10, 120, SKY_COLOR);
                // triangle above player's turn
                sync.triangle(118, 120, 118, 125, 123, 120, GREEN);
                sync.update();
                
                if (sync.play_mode == SINGLE_PLAYER) {
                    
                    if(ax1 > ACC_THRESHOLD) { 
                        // left
                        t2.reposition(-1, 0, 0);          
                    } else if(ax1 < -1 * ACC_THRESHOLD) {
                        //right
                        t2.reposition(+1, 0, 0);          
                    }
                    if(ay1 > ACC_THRESHOLD) {
                        // up
                        t2.reposition(0, 0, +1);
                    } else if(ay1 < -1 * ACC_THRESHOLD) {
                        // down
                        t2.reposition(0, 0, -1);
                    }
                    
                    // powerup button
                    if(p1_buttons[U_BUTTON]) { 
                        b2.powerUp();
                    }
                    // shoot button
                    if(p1_buttons[D_BUTTON]) { 
                        b2.shoot(); 
                    }
                } else if (sync.play_mode == MULTI_PLAYER) {
                    if(ax2 > ACC_THRESHOLD) { 
                        // left
                        t2.reposition(+1, 0, 0);          
                    } else if(ax2 < -1 * ACC_THRESHOLD) {
                        //right
                        t2.reposition(-1, 0, 0);          
                    }
                    if(ay2 > ACC_THRESHOLD) {
                        // up
                        t2.reposition(0, 0, +1);
                    } else if(ay2 < -1 * ACC_THRESHOLD) {
                        // down
                        t2.reposition(0, 0, -1);
                    }
                    
                    // powerup button
                    if(p2_buttons[U_BUTTON]) { 
                        b2.powerUp();
                    }
                    // shoot button
                    if(p2_buttons[D_BUTTON]) { 
                        b2.shoot(); 
                    }
                }
                    
                float dt = frame_timer.read();
                int intersection_code = b2.time_step(dt); 
                
                // If you shot yourself, you lost.
                if(sync.pixel_eq(intersection_code, t2.tank_color)) {
                    sync.update();  // Is this necessary?
                    winner = PLAYER1;
                    p1score = p1score + 1;
                    break;
                }
                // If you shot the other guy, you won!
                if(sync.pixel_eq(intersection_code, t1.tank_color)) { 
                    sync.update();
                    winner = PLAYER2;
                    p2score = p2score + 1;
                    break;
                }
                // keep playing
                if(intersection_code != BULLET_NO_COLLISION || intersection_code == BULLET_OFF_SCREEN) {
                    whose_turn = PLAYER1;
                }
            }
    
            frame_timer.reset();
            sync.update();     
        }
        restart = game_over();
    }
}