Chukwuebuka Nwibe / Mbed 2 deprecated el16ccn

el16ccn_maze

Dependencies:   mbed

MazeEngine/MazeEngine.cpp@9:73888767b4db, 2018-05-08 (annotated)

Committer:
el16ccn
Date:
Tue May 08 14:17:41 2018 +0000
Revision:
9:73888767b4db
Parent:
7:cfd0854eee25 
2nd publish

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el16ccn 1:062d8e7aa3b6 1 #include "MazeEngine.h"
el16ccn 1:062d8e7aa3b6 2
el16ccn 1:062d8e7aa3b6 3 MazeEngine::MazeEngine()
el16ccn 1:062d8e7aa3b6 4 {
el16ccn 1:062d8e7aa3b6 5
el16ccn 1:062d8e7aa3b6 6 }
el16ccn 1:062d8e7aa3b6 7
el16ccn 1:062d8e7aa3b6 8 MazeEngine::~MazeEngine()
el16ccn 1:062d8e7aa3b6 9 {
el16ccn 1:062d8e7aa3b6 10
el16ccn 1:062d8e7aa3b6 11 }
el16ccn 1:062d8e7aa3b6 12
el16ccn 4:17816de20d6b 13 void MazeEngine::init(int mazeModel, int x, int y, int radius, bool colour, bool control) //define game parameters
el16ccn 1:062d8e7aa3b6 14 {
el16ccn 1:062d8e7aa3b6 15
el16ccn 4:17816de20d6b 16 //define parameters for ball
el16ccn 1:062d8e7aa3b6 17 _radius = radius;
el16ccn 1:062d8e7aa3b6 18 _x = x;
el16ccn 1:062d8e7aa3b6 19 _y = y;
el16ccn 4:17816de20d6b 20 _colour = colour;
el16ccn 4:17816de20d6b 21 _control = control;
el16ccn 1:062d8e7aa3b6 22
el16ccn 4:17816de20d6b 23 //define parameters for maze
el16ccn 2:28cdb445f121 24 _mazeModel = mazeModel;
el16ccn 1:062d8e7aa3b6 25
el16ccn 4:17816de20d6b 26 // initialise with given parameters
el16ccn 4:17816de20d6b 27 _ball.init(_x, _y, _radius, _colour);
el16ccn 2:28cdb445f121 28 _maze.init(_mazeModel);
el16ccn 1:062d8e7aa3b6 29
el16ccn 7:cfd0854eee25 30 _ball.init(8, 5, _radius, _colour);
el16ccn 7:cfd0854eee25 31
el16ccn 1:062d8e7aa3b6 32 }
el16ccn 1:062d8e7aa3b6 33
el16ccn 9:73888767b4db 34 //reads joystick input ans sets them to control ball movememnt
el16ccn 4:17816de20d6b 35 void MazeEngine::readInput(Gamepad &pad)
el16ccn 4:17816de20d6b 36 {
el16ccn 4:17816de20d6b 37 _control = true;
el16ccn 4:17816de20d6b 38 getJoystickInput(pad);
el16ccn 4:17816de20d6b 39
el16ccn 4:17816de20d6b 40 }
el16ccn 4:17816de20d6b 41
el16ccn 4:17816de20d6b 42
el16ccn 4:17816de20d6b 43 void MazeEngine::update(N5110 &lcd)
el16ccn 4:17816de20d6b 44 {
el16ccn 4:17816de20d6b 45 if (checkFinish()){
el16ccn 4:17816de20d6b 46
el16ccn 4:17816de20d6b 47 return;
el16ccn 5:b4651ea21918 48
el16ccn 4:17816de20d6b 49 }
el16ccn 4:17816de20d6b 50
el16ccn 4:17816de20d6b 51 //update ball position based on input (using joystick)
el16ccn 4:17816de20d6b 52 _ball.update(position);
el16ccn 4:17816de20d6b 53
el16ccn 4:17816de20d6b 54
el16ccn 4:17816de20d6b 55
el16ccn 4:17816de20d6b 56 // reverts the changes if the proposed new ball position is a wall
el16ccn 4:17816de20d6b 57 checkCollision(lcd);
el16ccn 4:17816de20d6b 58 }
el16ccn 4:17816de20d6b 59
el16ccn 4:17816de20d6b 60
el16ccn 4:17816de20d6b 61
el16ccn 4:17816de20d6b 62 //Acquires maze array for wall collision checks
el16ccn 4:17816de20d6b 63 void MazeEngine::getMazeArray(N5110 &lcd)
el16ccn 4:17816de20d6b 64 {
el16ccn 4:17816de20d6b 65
el16ccn 4:17816de20d6b 66 for (int i = 0; i < 84; i++){
el16ccn 4:17816de20d6b 67 for (int j = 0; j < 48; j++){
el16ccn 4:17816de20d6b 68
el16ccn 4:17816de20d6b 69 int pixel = lcd.getPixel(i, j);
el16ccn 4:17816de20d6b 70
el16ccn 4:17816de20d6b 71 if (pixel == 1){
el16ccn 4:17816de20d6b 72
el16ccn 4:17816de20d6b 73 _mazeArray[i][j] = 1;
el16ccn 4:17816de20d6b 74 }
el16ccn 4:17816de20d6b 75 else {
el16ccn 4:17816de20d6b 76
el16ccn 4:17816de20d6b 77 _mazeArray[i][j] = 0;
el16ccn 4:17816de20d6b 78 }
el16ccn 4:17816de20d6b 79 }
el16ccn 4:17816de20d6b 80
el16ccn 4:17816de20d6b 81 }
el16ccn 4:17816de20d6b 82
el16ccn 4:17816de20d6b 83 }
el16ccn 4:17816de20d6b 84
el16ccn 4:17816de20d6b 85
el16ccn 4:17816de20d6b 86
el16ccn 4:17816de20d6b 87
el16ccn 4:17816de20d6b 88 void MazeEngine::checkCollision(N5110 &lcd)
el16ccn 1:062d8e7aa3b6 89 {
el16ccn 4:17816de20d6b 90
el16ccn 4:17816de20d6b 91 //get position of ball for wall collision check
el16ccn 4:17816de20d6b 92 Vector2D _position = _ball.getPosition();
el16ccn 4:17816de20d6b 93 Vector2D _velocity = _ball.getSpeed();
el16ccn 5:b4651ea21918 94 printf("position = (%f, %f) \n", _position.x, _position.y);
el16ccn 5:b4651ea21918 95
el16ccn 4:17816de20d6b 96
el16ccn 4:17816de20d6b 97 int leftSide = int(_position.x - _radius); //outermost left side pixel x centre minus radius
el16ccn 4:17816de20d6b 98 int rightSide = int(_position.x + _radius); //outermost right side pixel
el16ccn 4:17816de20d6b 99 int topSide = int(_position.y - _radius); //outermost top pixel
el16ccn 4:17816de20d6b 100 int bottomSide = int (_position.y + _radius); //outermost bottom pixel
el16ccn 4:17816de20d6b 101
el16ccn 4:17816de20d6b 102
el16ccn 4:17816de20d6b 103 // check ball position
el16ccn 4:17816de20d6b 104 // if distance between outermost pixel and centre != original distance
el16ccn 4:17816de20d6b 105 // there must be a pixel in adjacent position
el16ccn 4:17816de20d6b 106
el16ccn 4:17816de20d6b 107
el16ccn 4:17816de20d6b 108 if (rightSide + _mazeArray[rightSide + 1][int(_position.y)] != rightSide){
el16ccn 4:17816de20d6b 109
el16ccn 4:17816de20d6b 110 _velocity.x = 0;//set velocity = 0
el16ccn 4:17816de20d6b 111 _position.x -= 1; // ball set to no further right movement
el16ccn 4:17816de20d6b 112 }
el16ccn 4:17816de20d6b 113
el16ccn 4:17816de20d6b 114
el16ccn 4:17816de20d6b 115 if (topSide + _mazeArray[int(_position.x)][topSide - 1] != topSide){
el16ccn 4:17816de20d6b 116
el16ccn 4:17816de20d6b 117 _velocity.y = 0;//set velocity = 0
el16ccn 4:17816de20d6b 118 _position.y += 1; // ball set to no further top movement
el16ccn 4:17816de20d6b 119 }
el16ccn 4:17816de20d6b 120
el16ccn 4:17816de20d6b 121 if (bottomSide + _mazeArray[int(_position.x)][bottomSide + 1] != bottomSide){
el16ccn 4:17816de20d6b 122
el16ccn 4:17816de20d6b 123 _velocity.y = 0; //set velocity = 0
el16ccn 4:17816de20d6b 124 _position.y -= 1;// ball set to no further bottom movement
el16ccn 4:17816de20d6b 125 }
el16ccn 4:17816de20d6b 126
el16ccn 4:17816de20d6b 127 if (leftSide + _mazeArray[leftSide - 1][int(_position.y)] != leftSide){
el16ccn 4:17816de20d6b 128
el16ccn 4:17816de20d6b 129 _velocity.x = 0; // set velocity = 0
el16ccn 4:17816de20d6b 130 _position.x += 1; // ball set to no further left movement
el16ccn 5:b4651ea21918 131 printf("left side hit \n");
el16ccn 4:17816de20d6b 132 }
el16ccn 4:17816de20d6b 133
el16ccn 4:17816de20d6b 134 _ball.setPosition(_position);
el16ccn 4:17816de20d6b 135 _ball.setSpeed(_velocity);
el16ccn 4:17816de20d6b 136
el16ccn 4:17816de20d6b 137 }
el16ccn 4:17816de20d6b 138
el16ccn 1:062d8e7aa3b6 139
el16ccn 9:73888767b4db 140
el16ccn 9:73888767b4db 141 //gets joystick input as mapped coordinate(x,y)
el16ccn 4:17816de20d6b 142 void MazeEngine::getJoystickInput(Gamepad &pad)
el16ccn 4:17816de20d6b 143 {
el16ccn 4:17816de20d6b 144 position = pad.get_mapped_coord();
el16ccn 4:17816de20d6b 145
el16ccn 4:17816de20d6b 146 }
el16ccn 4:17816de20d6b 147
el16ccn 4:17816de20d6b 148
el16ccn 9:73888767b4db 149
el16ccn 9:73888767b4db 150 //check if maze has been completed
el16ccn 9:73888767b4db 151 //boolean variable where true = completed and false = not completed
el16ccn 9:73888767b4db 152 //only true if x (x coordinate of ball centre) > 83 (maximum x for lcd buffer)
el16ccn 4:17816de20d6b 153 bool MazeEngine::checkFinish()
el16ccn 4:17816de20d6b 154 {
el16ccn 4:17816de20d6b 155 Vector2D position = _ball.getPosition();
el16ccn 9:73888767b4db 156
el16ccn 4:17816de20d6b 157
el16ccn 4:17816de20d6b 158 if (position.x > 86){
el16ccn 4:17816de20d6b 159 _finish = true;
el16ccn 4:17816de20d6b 160 return _finish;
el16ccn 4:17816de20d6b 161 }
el16ccn 4:17816de20d6b 162
el16ccn 4:17816de20d6b 163
el16ccn 4:17816de20d6b 164 return _finish;
el16ccn 4:17816de20d6b 165 }
el16ccn 4:17816de20d6b 166
el16ccn 4:17816de20d6b 167
el16ccn 9:73888767b4db 168 //draw needed maze and ball for particular level and ball type
el16ccn 5:b4651ea21918 169 void MazeEngine::draw(N5110 &lcd, Visuals &visual)
el16ccn 1:062d8e7aa3b6 170 {
el16ccn 1:062d8e7aa3b6 171 _ball.draw(lcd);
el16ccn 5:b4651ea21918 172 _maze.draw(lcd,visual);
el16ccn 1:062d8e7aa3b6 173 }