ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_Project_el18s2a_2

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Dependencies:   mbed

main.cpp@12:8eb40a18f15d, 2020-06-05 (annotated)

Committer:
Psy1990
Date:
Fri Jun 05 20:47:43 2020 +0000
Revision:
12:8eb40a18f15d
Parent:
10:3e37b58e8600
Child:
13:c20acb3b1adf
Commented out the safe wall and added the wall of death that kills the snake on touch. When the snake dies the game ends and the score is still displayed with instructions how to the restart the game. The LEDs turn to flashing red!

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Psy1990 1:09a835e6d063 1 /*
Psy1990 1:09a835e6d063 2 ELEC2645 Embedded Systems Project
Psy1990 1:09a835e6d063 3 School of Electronic & Electrical Engineering
Psy1990 1:09a835e6d063 4 University of Leeds
Psy1990 1:09a835e6d063 5 2019/20
Psy1990 1:09a835e6d063 6
Psy1990 1:09a835e6d063 7 Name: Simon Thackray Atkinson
Psy1990 1:09a835e6d063 8 Username: el18s2a
Psy1990 1:09a835e6d063 9 Student ID Number: 201255483
Psy1990 1:09a835e6d063 10 Date: 05/03/2020
Psy1990 1:09a835e6d063 11 */
Psy1990 1:09a835e6d063 12
Psy1990 10:3e37b58e8600 13 // pre-processor directives
eencae 0:7423345f87c5 14 #include "mbed.h"
eencae 0:7423345f87c5 15 #include "Gamepad.h"
eencae 0:7423345f87c5 16 #include "N5110.h"
Psy1990 6:8e2fca142827 17 #include "Bitmap.h"
Psy1990 7:9bd49beccdd1 18 #include "SnakeEngine.h"
Psy1990 8:32825d724856 19 #include "Snake.h"
Psy1990 8:32825d724856 20 #include "Apple.h"
Psy1990 7:9bd49beccdd1 21
Psy1990 9:25597bc0cecc 22 #define APPLE_SIZE 2
Psy1990 8:32825d724856 23 #define SNAKE_SPEED 1
Psy1990 9:25597bc0cecc 24 #define SNAKE_SCORE 0
Psy1990 7:9bd49beccdd1 25
Psy1990 7:9bd49beccdd1 26
Psy1990 10:3e37b58e8600 27 // structs
Psy1990 7:9bd49beccdd1 28 struct UserInput {
Psy1990 7:9bd49beccdd1 29 Direction d;
Psy1990 7:9bd49beccdd1 30 float mag;
Psy1990 7:9bd49beccdd1 31 };
Psy1990 9:25597bc0cecc 32
Psy1990 9:25597bc0cecc 33
Psy1990 10:3e37b58e8600 34 // objects
Psy1990 10:3e37b58e8600 35 N5110 lcd; // Conects to LCD Display which is 84x48 pixels and can have 5 lines of text each contain 14 characters
Psy1990 10:3e37b58e8600 36 Gamepad pad; // Conects to rest of gamepad and allows access to LEDs, Controls, Sensors ect
Psy1990 10:3e37b58e8600 37 SnakeEngine snake; // Holds the majority of the game code and engine
Psy1990 7:9bd49beccdd1 38
Psy1990 8:32825d724856 39
Psy1990 10:3e37b58e8600 40 // prototypes t
Psy1990 10:3e37b58e8600 41 void init(); // Needed to setup the game and make sure everything is turned on
Psy1990 7:9bd49beccdd1 42 void update_game(UserInput input);
Psy1990 10:3e37b58e8600 43 void render(); // Needed to make the screen work and update each frame
Psy1990 10:3e37b58e8600 44 void welcome(); // Displays the splash screen when the device turns on or is reset
Psy1990 7:9bd49beccdd1 45
Psy1990 10:3e37b58e8600 46 // functions
Psy1990 10:3e37b58e8600 47 int main() // Everything in main.cpp is contained in this
Psy1990 7:9bd49beccdd1 48 {
Psy1990 7:9bd49beccdd1 49
Psy1990 9:25597bc0cecc 50 int fps = 6; // How many Frames Per Second (FPS)
Psy1990 7:9bd49beccdd1 51
Psy1990 10:3e37b58e8600 52 init(); // Turns on LCD and PAD
Psy1990 10:3e37b58e8600 53 welcome(); // Welcome screen to be shown before the game starts
Psy1990 7:9bd49beccdd1 54
Psy1990 7:9bd49beccdd1 55 render(); // first draw the initial frame
Psy1990 10:3e37b58e8600 56 wait(1.0f/fps); // wait for one period
Psy1990 7:9bd49beccdd1 57
Psy1990 7:9bd49beccdd1 58
Psy1990 10:3e37b58e8600 59 // The game loop, this reads the input of the pad updates and and renders the frame each time. The game can be slowed down or sped up depending on the wait function
Psy1990 7:9bd49beccdd1 60 while (1) {
Psy1990 10:3e37b58e8600 61 snake.read_input(pad);
Psy1990 12:8eb40a18f15d 62 snake.update(pad, lcd);
Psy1990 7:9bd49beccdd1 63 render();
Psy1990 7:9bd49beccdd1 64 wait(1.0f/fps);
Psy1990 7:9bd49beccdd1 65 }
Psy1990 7:9bd49beccdd1 66 }
Psy1990 7:9bd49beccdd1 67
Psy1990 7:9bd49beccdd1 68 // initialies all classes and libraries
Psy1990 7:9bd49beccdd1 69 void init()
Psy1990 7:9bd49beccdd1 70 {
Psy1990 7:9bd49beccdd1 71 // need to initialise LCD and Gamepad
Psy1990 10:3e37b58e8600 72 lcd.init(); // LCD turned on
Psy1990 10:3e37b58e8600 73 pad.init(); // GamePad turned on
Psy1990 10:3e37b58e8600 74 snake.init(APPLE_SIZE,SNAKE_SCORE, SNAKE_SPEED); //Initiates the values based on what is on the top of this file
Psy1990 7:9bd49beccdd1 75 }
Psy1990 7:9bd49beccdd1 76
Psy1990 7:9bd49beccdd1 77 // this function draws each frame on the LCD
Psy1990 7:9bd49beccdd1 78 void render()
Psy1990 7:9bd49beccdd1 79 {
Psy1990 9:25597bc0cecc 80 // Each time we render we need to clear screen get the buffer and refresh
Psy1990 7:9bd49beccdd1 81 lcd.clear();
Psy1990 7:9bd49beccdd1 82 snake.draw(lcd);
Psy1990 7:9bd49beccdd1 83 lcd.refresh();
Psy1990 7:9bd49beccdd1 84 }
Psy1990 7:9bd49beccdd1 85
Psy1990 9:25597bc0cecc 86 // Welcome Screen
Psy1990 7:9bd49beccdd1 87 void welcome() {
Psy1990 7:9bd49beccdd1 88 pad.led(3,1); // Only Show Green LEDS
Psy1990 8:32825d724856 89 pad.led(6,1); //
Psy1990 7:9bd49beccdd1 90 lcd.clear();
Psy1990 8:32825d724856 91 lcd.clear(); // we need to clear the screen first
Psy1990 8:32825d724856 92 lcd.printString(" Author ",0,1);
Psy1990 8:32825d724856 93 lcd.printString("Simon Atkinson",0,2);
Psy1990 8:32825d724856 94 lcd.printString(" 201255483 ",0,3);
Psy1990 8:32825d724856 95 lcd.printString(" Uni of Leeds ",0,4);
Psy1990 8:32825d724856 96 lcd.refresh(); // need to refresh display after setting pixels or writing strings
Psy1990 8:32825d724856 97 wait(1.0); // we don't want this screen on long!
Psy1990 8:32825d724856 98 lcd.clear();
Psy1990 7:9bd49beccdd1 99 lcd.printString(" Welcome to ",0,1);
Psy1990 7:9bd49beccdd1 100 lcd.printString(" Snake! ",0,2);
Psy1990 7:9bd49beccdd1 101 lcd.printString(" Press Start ",0,4);
Psy1990 7:9bd49beccdd1 102 lcd.refresh();
Psy1990 7:9bd49beccdd1 103 lcd.clear();
Psy1990 10:3e37b58e8600 104 while ( pad.start_pressed() == false) { // Will keep in the welcome state until the start button is pressed then it will go onto the game!
Psy1990 7:9bd49beccdd1 105 }
Psy1990 7:9bd49beccdd1 106
Psy1990 10:3e37b58e8600 107 } //end of main.cpp