Diff: cometCrusher.h

Revision:

3:520df1778717

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cometCrusher.h	Thu May 05 14:59:03 2016 +0000
@@ -0,0 +1,248 @@
+#include "mbed.h"
+#include "N5110.h"
+
+#define DIRECTION_TOLERANCE 0.05L
+
+//         VCC,    SCE,   RST,   D/C,   MOSI,  SCLK,   LED
+N5110 lcd (PTE26 , PTA0 , PTC4 , PTD0 , PTD2 , PTD1 , PTC3);
+
+// connections for joystick
+DigitalIn button(PTB11);
+AnalogIn xPot(PTB2);
+AnalogIn yPot(PTB3);
+
+AnalogIn Pot1(PTB10);
+
+PwmOut led1(PTC2);
+
+//InterruptIn sw2 (SW2);
+DigitalIn buttonA(PTB18);
+DigitalIn buttonB(PTB19);
+PwmOut buzzer(PTA2);
+
+//volatile int g_sw2_flag = 0;
+int shipShape [7][11] = {
+    {0,0,0,0,0,0,0,0,0,0,1},
+    {0,0,0,0,0,1,1,1,1,1,0},
+    {0,0,1,1,1,1,1,1,1,0,0},
+    {1,1,1,1,1,1,1,1,0,0,0},
+    {0,0,1,1,1,1,0,1,1,0,0},
+    {0,0,0,0,0,1,1,1,1,1,0},
+    {0,0,0,0,0,0,0,0,0,0,1}
+};
+
+void ship()
+{
+    for(int shipR = 0; shipR <= 6; shipR ++) {
+        for(int shipC = 0; shipC <= 10; shipC ++) {
+            if(shipShape[shipR][shipC] == 0) {
+                lcd.clearPixel(shipR + 35,shipC + 20);
+            } else if(shipShape[shipR][shipC] == 1) {
+                lcd.setPixel(shipR + 35,shipC + 20);
+            }
+        }
+    }
+    lcd.refresh();
+    
+}
+
+
+// timer to regularly read the joystick
+Ticker pollJoystick;
+
+enum DirectionName {
+    UP,
+    DOWN,
+    LEFT,
+    RIGHT,
+    CENTRE,
+    UNKNOWN
+};
+
+// struct for Joystick
+typedef struct JoyStick Joystick;
+struct JoyStick {
+    float x;    // current x value
+    float x0;   // 'centred' x value
+    float y;    // current y value
+    float y0;   // 'centred' y value
+    int button; // button state (assume pull-down used, so 1 = pressed, 0 = unpressed)
+    int buttonA; // buttonA state (assume pull-down used, so 1 = pressed, 0 = unpressed)
+    int buttonB; // buttonB state (assume pull-down used, so 1 = pressed, 0 = unpressed)
+    DirectionName direction;  // current direction
+};
+// create struct variable
+Joystick joystick;
+
+int printFlag = 0;
+
+// function prototypes
+void calibrateJoystick();
+void updateJoystick();
+
+//void sw2_isr();
+
+void menu();
+void game();
+void difficultySet();
+void highScore();
+void instructions();
+
+
+int menuSelect = 2; //Default value of menuSelect so cursor is already on "Start" option
+int menuUp = 1;//default value for indicator to show menu is up
+
+int main()
+{
+    while(1) {
+        calibrateJoystick();  // get centred values of joystick
+        pollJoystick.attach(&updateJoystick,1.0/10.0);  // read joystick 10 times per second
+        while(menuUp == 1) {
+            menu();
+        }
+    }
+}
+
+void menu()
+{
+    calibrateJoystick();  // get centred values of joystick
+    pollJoystick.attach(&updateJoystick,1.0/10.0);  // read joystick 10 times per second
+
+    lcd.init();
+    lcd.clear();
+    lcd.normalMode();
+    lcd.printString("Comet Crusher!",0,0);
+    lcd.printString("Start",10,2);
+    lcd.printString("Instructions",10,3);
+    lcd.printString("Difficulty",10,4);
+    lcd.printString("Scores",10,5);
+    lcd.printString(">",5,menuSelect);
+    lcd.refresh();
+    sleep();
+    switch (menuSelect) {
+        case 2:
+            if (joystick.direction == DOWN) {
+                menuSelect = 3;
+                lcd.refresh();
+                wait (0.2);
+                sleep();
+            } else if (joystick.direction == UP) {
+                menuSelect = 5;
+                lcd.refresh();
+                wait (0.2);
+                sleep();
+            }
+            if (buttonA == 1) {
+                menuUp = 0;
+                game();
+            }
+            break;
+        case 3:
+            if (joystick.direction == DOWN) {
+                menuSelect = 4;
+                lcd.refresh();
+                wait (0.2);
+                sleep();
+            } else if (joystick.direction == UP) {
+                menuSelect = 2;
+                lcd.refresh();
+                wait (0.2);
+                sleep();
+            }
+            break;
+        case 4:
+            if (joystick.direction == DOWN) {
+                menuSelect = 5;
+                lcd.refresh();
+                wait (0.2);
+                sleep();
+            } else if (joystick.direction == UP) {
+                menuSelect = 3;
+                lcd.refresh();
+                wait (0.2);
+                sleep();
+            }
+            break;
+        case 5:
+            if (joystick.direction == DOWN) {
+                menuSelect = 2;
+                lcd.refresh();
+                wait (0.2);
+                sleep();
+            } else if (joystick.direction == UP) {
+                menuSelect = 4;
+                lcd.refresh();
+                wait (0.2);
+                sleep();
+            }
+            break;
+    }
+}
+void game()
+{
+    // SW2 has a pull-up resistor, so the pin will be at 3.3 V by default
+    // and fall to 0 V when pressed. We therefore need to look for a falling edge
+    // on the pin to fire the interrupt
+    //sw2.fall(&sw2_isr);
+    //since SW2 has an external pull-up, we should disable to internal pull-down
+    // resistor that is enabled by default using InterruptIn
+    //sw2.mode(PullNone);
+    
+    lcd.clear(); //Clear menu and start game
+    ship();
+}
+
+void difficultySet()
+{
+}
+
+void highScore()
+{
+}
+
+void instructions()
+{
+}
+
+
+
+
+void calibrateJoystick()
+{
+    button.mode(PullDown);
+    buttonA.mode(PullDown);
+    buttonB.mode(PullDown);
+
+    // must not move during calibration
+    joystick.x0 = xPot;  // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly)
+    joystick.y0 = yPot;
+}
+void updateJoystick()
+{
+    // read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred)
+    joystick.x = xPot - joystick.x0;
+    joystick.y = yPot - joystick.y0;
+    // read button state
+    joystick.button = button;
+    joystick.buttonA = buttonA;
+    joystick.buttonB = buttonB;
+
+    // calculate direction depending on x,y values
+    // tolerance allows a little lee-way in case joystick not exactly in the stated direction
+    if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
+        joystick.direction = CENTRE;
+    } else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
+        joystick.direction = DOWN;
+    } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) {
+        joystick.direction = UP;
+    } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
+        joystick.direction = LEFT;
+    } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) {
+        joystick.direction = RIGHT;
+    } else {
+        joystick.direction = UNKNOWN;
+    }
+
+    // set flag for printing
+    printFlag = 1;
+}
\ No newline at end of file