ELEC2645 (2019/20)
Owen Cavender 201159294
Dependencies: mbed
Diff: main.cpp
- Revision:
- 2:ffbfd3f53ee2
- Parent:
- 1:897160a1a3ae
diff -r 897160a1a3ae -r ffbfd3f53ee2 main.cpp
--- a/main.cpp Tue May 26 12:17:59 2020 +0000
+++ b/main.cpp Sat May 30 06:12:09 2020 +0000
@@ -1,127 +1,119 @@
/*
ELEC2645 Embedded Systems Project
-School of Electronic & Electrical Engineering
+School of Electronic & Electrical appleering
University of Leeds
2019/20
+/////////////SNAKE ///////////
Name: Owen Cavender
Username: el17oc
Student ID Number: 201159294
Date: 20/04/2020
-
-The game loop will be entered after the game is initialised. The first step is to process the
-user input (if any). The next step is to update the game engine depending on the input i.e.
-moving a character or checking for collisions. The final step is to update the display and render
-this on the LCD. There is usual
*/
-// includes
-#include "mbed.h"
+//////////////////////////////
+
+//includes
+#include "mbed.h" //addresses each header file of external classes being used in the programme
#include "Gamepad.h"
#include "N5110.h"
#include "snake.h"
#include "GameEngine.h"
+
//objects
Gamepad pad;
Snake snake;
N5110 lcd;
GameEngine engine;
+
//functions
-
void welcome();
void render();
void init();
-void update_game_state();
+void update_snake();
+
-int main() //FUNCTION 0
+//Serial pc(USBTX, USBRX);
+
+int main()
{
- int fps = 6; // frames per second
+ init(); //initialises game objects
+ welcome(); //displays welcome screen before entering game loop
+
+
+
+ while (1) {
+
- init(); // initialise and then display welcome screen...
- welcome();
- wait(1.0f/fps); // and wait for one frame period
- render();
+ update_snake(); //reads input from gamepad and updates the position of the snake - this is the function influences how the other functions behave
+ snake.check_gameover(lcd); //checking if any one of the three game over conditions is true
+ // snake.gameover_true(lcd, pad); //checking if an apple has been collected - increases the score and generates new apple position if apple has been collected
+ snake.apple_collected(lcd, pad);
+ snake.get_Apple_position(lcd);
+ engine.get_LEDs(pad, snake);
- // game loop - read input, update the game state and render the display
- while (1) {
- snake.set_direction(pad);
- update_game_state();
- wait(1.0f/fps); //need to make wait function - relate it to clock
+ engine.print_countdown(lcd, snake); //prints the value of the countdown counter - it will have incremented by 25 if an apple has been collected and would have decreased by 1 if not
+ snake.render(lcd, pad); //prints the snake, the apple, the score and the border
+ // snake.print_display_time(lcd);
+
+
+ wait(0.01);
}
}
-
-
void init()
{
+ lcd.init(); //initialises the lcd
+ pad.init(); //initialises the gamepad
+ snake.init(); //initialises snake class
- snake.init(); //need to initialise snake class
- pad.init();
- lcd.init();
- engine.init(48, 24, 48, 30); // need to choose initial values A$AP shx shy apx apy
+
}
-void update_game_state() //FUNCTION 2
+void update_snake()
{
-
- snake.set_direction(pad);
- snake.move_and_draw_snake(lcd);
- snake.gameover_true(lcd);
- snake.check_if_scored(lcd, pad);
-
+ snake.get_direction(pad); //sets the direction based on buttons pressed on the Gamepad
+ snake.render_clear_tail(lcd); //clears the trailing pixel of the snake before updating position to avoid the snake growing with each move - the trailing pixel would be locked and fixed as 1 in its initial position without this
+ // =needs to be cleared before _x3, _y3 is updated
+ snake.move_snake(); //alters the coordinate of each snake bit in accordance with the Gamepad instruction
+ engine.get_LEDs(pad, snake); //Turns on on LEDS based on where the snake is in the box
}
void welcome()
{
- lcd.printString(" SNAKE ",0,1);
- lcd.printString(" Press Start ",0,4);
- lcd.refresh();
+
+ while ( pad.start_pressed() == false) { //main menu - wont enter game loop until start is pressed
+ lcd.printString(" SNAKE ",0,1); //
+ lcd.printString("COLLECT APPLES",0,3); //game task
+ lcd.printString(" Press Start ",0,5); //instruction
+ lcd.setContrast( pad.read_pot1()); //adjust contrast
+
- // wait flashing LEDs until start button is pressed
- while ( pad.start_pressed() == false) {
- lcd.setContrast( pad.read_pot1());
- pad.leds_on();
+ pad.leds_off();
+ pad.led(1,1);
+ wait(0.2);
+ pad.led(1,0); //turning on the LEDS in a sequence which reflects the snakes movement
+ pad.led(2,1);
+ wait (0.2);
+ pad.led(2,0);
+ pad.led(3,1);
+ wait(0.2);
+ pad.led(3,0);
wait(0.1);
- pad.leds_off();
- wait(0.1);
+ pad.led(6,1);
+ wait (0.2);
+ pad.led(6,0);
+ pad.led(5,1);
+ wait (0.2);
+ pad.led(5,0);
+ pad.led(4,1);
+ wait(0.2);
+
+ lcd.refresh(); //updates screen
}
}
-
-
-//void render(N5110 &lcd)
-//{
-void render()
-{
- // clear screen, re-draw and refresh
- lcd.clear();
- lcd.drawRect(0, 0, 84, 42, FILL_TRANSPARENT);
- lcd.refresh();
-}
-
-
-// for (int z=0; z<=_length; z++) {
-// lcd.setPixel(snakebody[z].x, snakebody[z].y, 1);
-// }
-//use to draw wall - do i need to draw it everytime or can i do it as constant
-//}
-
-
-
-
-
-
-//has an apple been collected? if so increase length by 1 increase score by 1 and makes coin collecting noise and spawn new apple
-//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
-//has button button been pressed - if so change direction accordingly
-//max length - when length = width x height - 1 - game complete
-//each pixel of length must follow the front pixel
-// 2 modes - time race - "get an apple before time runs out" - resets timer --- then classic snake
-
-
-
-//need to add audio, leds, (main menu end menu and entering and leaving the while(1) loop), time trial mode, .h files
\ No newline at end of file