ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_Project_ll16j23s

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Dependencies:   mbed ll16j23s_test_docs

SnakeBody/SnakeBody.cpp@3:fcd6d70e9694, 2020-05-20 (annotated)

Committer:
JoeShotton
Date:
Wed May 20 21:25:40 2020 +0000
Revision:
3:fcd6d70e9694
Child:
4:ea3fa51c4386
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JoeShotton 3:fcd6d70e9694 1 #include "SnakeBody.h"
JoeShotton 3:fcd6d70e9694 2
JoeShotton 3:fcd6d70e9694 3 // nothing doing in the constructor and destructor
JoeShotton 3:fcd6d70e9694 4 SnakeBody::SnakeBody()
JoeShotton 3:fcd6d70e9694 5 {
JoeShotton 3:fcd6d70e9694 6 //constructor
JoeShotton 3:fcd6d70e9694 7 Direction _fsm[5] = {
JoeShotton 3:fcd6d70e9694 8 {0, 0, 0, {0,1,2,3,4}}, // Centred
JoeShotton 3:fcd6d70e9694 9 {1, 0, -1, {1,1,2,1,4}}, // North, will not go to centre or south
JoeShotton 3:fcd6d70e9694 10 {2, 1, 0, {2,1,2,3,2}}, // East, will not go to centre or west
JoeShotton 3:fcd6d70e9694 11 {3, 0, 1, {3,3,2,3,4}}, // South, will not go to centre or north
JoeShotton 3:fcd6d70e9694 12 {4, -1, 0, {4,1,4,3,4}} // West, will not go to centre or east
JoeShotton 3:fcd6d70e9694 13 };
JoeShotton 3:fcd6d70e9694 14 }
JoeShotton 3:fcd6d70e9694 15
JoeShotton 3:fcd6d70e9694 16 SnakeBody::~SnakeBody()
JoeShotton 3:fcd6d70e9694 17 {
JoeShotton 3:fcd6d70e9694 18 //deconstructor
JoeShotton 3:fcd6d70e9694 19 }
JoeShotton 3:fcd6d70e9694 20
JoeShotton 3:fcd6d70e9694 21 void update_movement(int x_max, int y_max, int cell_size, int d, int _state) {
JoeShotton 3:fcd6d70e9694 22 /*
JoeShotton 3:fcd6d70e9694 23 if ((_x_head % cell_size) + (_y_head % cell_size) == 0) { // only allows changing movement when the snake is cell-aligned
JoeShotton 3:fcd6d70e9694 24 d = pad.get_cardinal(); // gets joystick cardinal direction: 0 for centre, 1 - 4 for NESW respectively
JoeShotton 3:fcd6d70e9694 25 state = _fsm[_state].nextState[d]; // adjusts direction fsm state based on direction
JoeShotton 3:fcd6d70e9694 26 }
JoeShotton 3:fcd6d70e9694 27
JoeShotton 3:fcd6d70e9694 28 _x_head += _fsm[_state].delta_x; // increments x value based on fsm state value
JoeShotton 3:fcd6d70e9694 29 _y_head += _fsm[_state].delta_y; // increments y value based on fsm state value
JoeShotton 3:fcd6d70e9694 30
JoeShotton 3:fcd6d70e9694 31 _x_head = ((x_head % X_MAX) + X_MAX)% X_MAX; // wraps x back to within range 0-83
JoeShotton 3:fcd6d70e9694 32 _y_head = ((y_head % Y_MAX) + Y_MAX)% Y_MAX; // wraps y back to within range 0-83
JoeShotton 3:fcd6d70e9694 33 */
JoeShotton 3:fcd6d70e9694 34 };