ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_Project_el17oc1

Owen Cavender 201159294

Dependencies:   mbed Gamepad2

main.cpp@1:897160a1a3ae, 2020-05-26 (annotated)

Committer:
el17oc
Date:
Tue May 26 12:17:59 2020 +0000
Revision:
1:897160a1a3ae
Parent:
0:b7f1f47bb26a
Child:
2:44e4a6ecdbef
ELEC2645

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el17oc 1:897160a1a3ae 1 /*
eencae 0:b7f1f47bb26a 2 ELEC2645 Embedded Systems Project
eencae 0:b7f1f47bb26a 3 School of Electronic & Electrical Engineering
eencae 0:b7f1f47bb26a 4 University of Leeds
eencae 0:b7f1f47bb26a 5 2019/20
eencae 0:b7f1f47bb26a 6
el17oc 1:897160a1a3ae 7 Name: Owen Cavender
el17oc 1:897160a1a3ae 8 Username: el17oc
el17oc 1:897160a1a3ae 9 Student ID Number: 201159294
el17oc 1:897160a1a3ae 10 Date: 20/04/2020
el17oc 1:897160a1a3ae 11
el17oc 1:897160a1a3ae 12 The game loop will be entered after the game is initialised. The first step is to process the
el17oc 1:897160a1a3ae 13 user input (if any). The next step is to update the game engine depending on the input i.e.
el17oc 1:897160a1a3ae 14 moving a character or checking for collisions. The final step is to update the display and render
el17oc 1:897160a1a3ae 15 this on the LCD. There is usual
eencae 0:b7f1f47bb26a 16 */
eencae 0:b7f1f47bb26a 17
eencae 0:b7f1f47bb26a 18 // includes
eencae 0:b7f1f47bb26a 19 #include "mbed.h"
eencae 0:b7f1f47bb26a 20 #include "Gamepad.h"
eencae 0:b7f1f47bb26a 21 #include "N5110.h"
el17oc 1:897160a1a3ae 22 #include "snake.h"
el17oc 1:897160a1a3ae 23 #include "GameEngine.h"
el17oc 1:897160a1a3ae 24
el17oc 1:897160a1a3ae 25 //objects
el17oc 1:897160a1a3ae 26 Gamepad pad;
el17oc 1:897160a1a3ae 27 Snake snake;
el17oc 1:897160a1a3ae 28 N5110 lcd;
el17oc 1:897160a1a3ae 29 GameEngine engine;
el17oc 1:897160a1a3ae 30 //functions
el17oc 1:897160a1a3ae 31
el17oc 1:897160a1a3ae 32 void welcome();
el17oc 1:897160a1a3ae 33 void render();
el17oc 1:897160a1a3ae 34 void init();
el17oc 1:897160a1a3ae 35 void update_game_state();
el17oc 1:897160a1a3ae 36
el17oc 1:897160a1a3ae 37 int main() //FUNCTION 0
el17oc 1:897160a1a3ae 38 {
el17oc 1:897160a1a3ae 39
el17oc 1:897160a1a3ae 40 int fps = 6; // frames per second
el17oc 1:897160a1a3ae 41
el17oc 1:897160a1a3ae 42 init(); // initialise and then display welcome screen...
el17oc 1:897160a1a3ae 43 welcome();
el17oc 1:897160a1a3ae 44 wait(1.0f/fps); // and wait for one frame period
el17oc 1:897160a1a3ae 45 render();
el17oc 1:897160a1a3ae 46
el17oc 1:897160a1a3ae 47 // game loop - read input, update the game state and render the display
el17oc 1:897160a1a3ae 48 while (1) {
el17oc 1:897160a1a3ae 49 snake.set_direction(pad);
el17oc 1:897160a1a3ae 50 update_game_state();
el17oc 1:897160a1a3ae 51 wait(1.0f/fps); //need to make wait function - relate it to clock
el17oc 1:897160a1a3ae 52 }
el17oc 1:897160a1a3ae 53
el17oc 1:897160a1a3ae 54 }
el17oc 1:897160a1a3ae 55
eencae 0:b7f1f47bb26a 56
eencae 0:b7f1f47bb26a 57
el17oc 1:897160a1a3ae 58 void init()
el17oc 1:897160a1a3ae 59 {
el17oc 1:897160a1a3ae 60
el17oc 1:897160a1a3ae 61 snake.init(); //need to initialise snake class
el17oc 1:897160a1a3ae 62 pad.init();
el17oc 1:897160a1a3ae 63 lcd.init();
el17oc 1:897160a1a3ae 64 engine.init(48, 24, 48, 30); // need to choose initial values A$AP shx shy apx apy
el17oc 1:897160a1a3ae 65 }
eencae 0:b7f1f47bb26a 66
el17oc 1:897160a1a3ae 67 void update_game_state() //FUNCTION 2
eencae 0:b7f1f47bb26a 68 {
el17oc 1:897160a1a3ae 69
el17oc 1:897160a1a3ae 70 snake.set_direction(pad);
el17oc 1:897160a1a3ae 71 snake.move_and_draw_snake(lcd);
el17oc 1:897160a1a3ae 72 snake.gameover_true(lcd);
el17oc 1:897160a1a3ae 73 snake.check_if_scored(lcd, pad);
el17oc 1:897160a1a3ae 74
eencae 0:b7f1f47bb26a 75 }
eencae 0:b7f1f47bb26a 76
el17oc 1:897160a1a3ae 77 void welcome()
el17oc 1:897160a1a3ae 78 {
el17oc 1:897160a1a3ae 79
el17oc 1:897160a1a3ae 80 lcd.printString(" SNAKE ",0,1);
el17oc 1:897160a1a3ae 81 lcd.printString(" Press Start ",0,4);
el17oc 1:897160a1a3ae 82 lcd.refresh();
el17oc 1:897160a1a3ae 83
el17oc 1:897160a1a3ae 84 // wait flashing LEDs until start button is pressed
el17oc 1:897160a1a3ae 85 while ( pad.start_pressed() == false) {
el17oc 1:897160a1a3ae 86 lcd.setContrast( pad.read_pot1());
el17oc 1:897160a1a3ae 87 pad.leds_on();
el17oc 1:897160a1a3ae 88 wait(0.1);
el17oc 1:897160a1a3ae 89 pad.leds_off();
el17oc 1:897160a1a3ae 90 wait(0.1);
el17oc 1:897160a1a3ae 91 }
el17oc 1:897160a1a3ae 92
el17oc 1:897160a1a3ae 93 }
el17oc 1:897160a1a3ae 94
el17oc 1:897160a1a3ae 95
el17oc 1:897160a1a3ae 96 //void render(N5110 &lcd)
el17oc 1:897160a1a3ae 97 //{
el17oc 1:897160a1a3ae 98 void render()
el17oc 1:897160a1a3ae 99 {
el17oc 1:897160a1a3ae 100 // clear screen, re-draw and refresh
el17oc 1:897160a1a3ae 101 lcd.clear();
el17oc 1:897160a1a3ae 102 lcd.drawRect(0, 0, 84, 42, FILL_TRANSPARENT);
el17oc 1:897160a1a3ae 103 lcd.refresh();
el17oc 1:897160a1a3ae 104 }
el17oc 1:897160a1a3ae 105
el17oc 1:897160a1a3ae 106
el17oc 1:897160a1a3ae 107 // for (int z=0; z<=_length; z++) {
el17oc 1:897160a1a3ae 108 // lcd.setPixel(snakebody[z].x, snakebody[z].y, 1);
el17oc 1:897160a1a3ae 109 // }
el17oc 1:897160a1a3ae 110 //use to draw wall - do i need to draw it everytime or can i do it as constant
el17oc 1:897160a1a3ae 111 //}
el17oc 1:897160a1a3ae 112
el17oc 1:897160a1a3ae 113
el17oc 1:897160a1a3ae 114
el17oc 1:897160a1a3ae 115
el17oc 1:897160a1a3ae 116
el17oc 1:897160a1a3ae 117
el17oc 1:897160a1a3ae 118 //has an apple been collected? if so increase length by 1 increase score by 1 and makes coin collecting noise and spawn new apple
el17oc 1:897160a1a3ae 119 //has snake touched itself or wall - if so end game - present score - make xxx sound fail --- apple needs to be different to the snakes body and different to wall
el17oc 1:897160a1a3ae 120 //has button button been pressed - if so change direction accordingly
el17oc 1:897160a1a3ae 121 //max length - when length = width x height - 1 - game complete
el17oc 1:897160a1a3ae 122 //each pixel of length must follow the front pixel
el17oc 1:897160a1a3ae 123 // 2 modes - time race - "get an apple before time runs out" - resets timer --- then classic snake
el17oc 1:897160a1a3ae 124
el17oc 1:897160a1a3ae 125
el17oc 1:897160a1a3ae 126
el17oc 1:897160a1a3ae 127 //need to add audio, leds, (main menu end menu and entering and leaving the while(1) loop), time trial mode, .h files