ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_Project_el18s2a_2

Simon Atkinson 201255483

Dependencies:   mbed

Snake Game

Summary

Hello and welcome to my Snake Game. Snake is a simple game where you control a snake and eat an apple which increases your size. Normally touching the walls will kill you, always touching yourself will make you die!

Controls

The Controls for this game are simple the Start button starts the game (who would have thought) this button is the left button on the bottom of the gamepad next to the two blue potentiometers. The Reset button on the right of the potentiometers resets the game. Once the game starts use the left thumbstick to control the movement of the snake.

If you hit the wall with your snake you will die and the game will end.

Bugs/Missing Features

Unfortunatley I wasn't able to get the game eating the apple to work, when I tried I could never get it to detect the collisions I tried a few different ways but ran out of time. Because that doesn't work the score doesn't increase and the apple doesn't spawn in a different place. I will try continue to work on this when I have time as I enjoyed doing this project even though it was very frustrating at times!

Gamepad2/Bitmap.cpp@21:e8d66c5f68cc, 2020-06-05 (annotated)

Committer:
Psy1990
Date:
Fri Jun 05 22:57:33 2020 +0000
Revision:
21:e8d66c5f68cc
Parent:
0:7423345f87c5 
Final Submission. I have read and agreed with Statement of Academic Integrity.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eencae 0:7423345f87c5 1 #include "Bitmap.h"
eencae 0:7423345f87c5 2
eencae 0:7423345f87c5 3 #include <iostream>
eencae 0:7423345f87c5 4
eencae 0:7423345f87c5 5 #include "N5110.h"
eencae 0:7423345f87c5 6
eencae 0:7423345f87c5 7 Bitmap::Bitmap(int const *contents,
eencae 0:7423345f87c5 8 unsigned int const height,
eencae 0:7423345f87c5 9 unsigned int const width)
eencae 0:7423345f87c5 10 :
eencae 0:7423345f87c5 11 _contents(std::vector<int>(height*width)),
eencae 0:7423345f87c5 12 _height(height),
eencae 0:7423345f87c5 13 _width(width)
eencae 0:7423345f87c5 14 {
eencae 0:7423345f87c5 15 // Perform a quick sanity check of the dimensions
eencae 0:7423345f87c5 16 if (_contents.size() != height * width) {
eencae 0:7423345f87c5 17 std::cerr << "Contents of bitmap has size " << _contents.size()
eencae 0:7423345f87c5 18 << " pixels, but its dimensions were specified as "
eencae 0:7423345f87c5 19 << width << " * " << height << " = " << width * height << std::endl;
eencae 0:7423345f87c5 20 }
eencae 0:7423345f87c5 21
eencae 0:7423345f87c5 22 for(unsigned int i = 0; i < height*width; ++i) _contents[i] = contents[i];
eencae 0:7423345f87c5 23 }
eencae 0:7423345f87c5 24
eencae 0:7423345f87c5 25 /**
eencae 0:7423345f87c5 26 * @returns the value of the pixel at the given position
eencae 0:7423345f87c5 27 */
eencae 0:7423345f87c5 28 int Bitmap::get_pixel(unsigned int const row,
eencae 0:7423345f87c5 29 unsigned int const column) const
eencae 0:7423345f87c5 30 {
eencae 0:7423345f87c5 31 // First check that row and column indices are within bounds
eencae 0:7423345f87c5 32 if(column >= _width || row >= _height)
eencae 0:7423345f87c5 33 {
eencae 0:7423345f87c5 34 std::cerr << "The requested pixel with index " << row << "," << column
eencae 0:7423345f87c5 35 << "is outside the bitmap dimensions: " << _width << ","
eencae 0:7423345f87c5 36 << _height << std::endl;
eencae 0:7423345f87c5 37 }
eencae 0:7423345f87c5 38
eencae 0:7423345f87c5 39 // Now return the pixel value, using row-major indexing
eencae 0:7423345f87c5 40 return _contents[row * _width + column];
eencae 0:7423345f87c5 41 }
eencae 0:7423345f87c5 42
eencae 0:7423345f87c5 43 /**
eencae 0:7423345f87c5 44 * @brief Prints the contents of the bitmap to the terminal
eencae 0:7423345f87c5 45 */
eencae 0:7423345f87c5 46 void Bitmap::print() const
eencae 0:7423345f87c5 47 {
eencae 0:7423345f87c5 48 for (unsigned int row = 0; row < _height; ++row)
eencae 0:7423345f87c5 49 {
eencae 0:7423345f87c5 50 // Print each element of the row
eencae 0:7423345f87c5 51 for (unsigned int column = 0; column < _width; ++column)
eencae 0:7423345f87c5 52 {
eencae 0:7423345f87c5 53 int pixel = get_pixel(row, column);
eencae 0:7423345f87c5 54 std::cout << pixel;
eencae 0:7423345f87c5 55 }
eencae 0:7423345f87c5 56
eencae 0:7423345f87c5 57 // And then terminate with a new-line character
eencae 0:7423345f87c5 58 std::cout << std::endl;
eencae 0:7423345f87c5 59 }
eencae 0:7423345f87c5 60 }
eencae 0:7423345f87c5 61
eencae 0:7423345f87c5 62 /**
eencae 0:7423345f87c5 63 * @brief Renders the contents of the bitmap onto an N5110 screen
eencae 0:7423345f87c5 64 *
eencae 0:7423345f87c5 65 * @param[in] lcd The screen to use for rendering
eencae 0:7423345f87c5 66 * @param[in] x0 The horizontal position in pixels at which to render the bitmap
eencae 0:7423345f87c5 67 * @param[in] y0 The vertical position in pixels at which to render the bitmap
eencae 0:7423345f87c5 68 *
eencae 0:7423345f87c5 69 * @details Note that x0, y0 gives the location of the top-left of the bitmap on
eencae 0:7423345f87c5 70 * the screen.
eencae 0:7423345f87c5 71 * This function only updates the buffer on the screen. You still need
eencae 0:7423345f87c5 72 * to refresh the screen in order to actually see the bitmap.
eencae 0:7423345f87c5 73 */
eencae 0:7423345f87c5 74 void Bitmap::render(N5110 &lcd,
eencae 0:7423345f87c5 75 unsigned int const x0,
eencae 0:7423345f87c5 76 unsigned int const y0) const
eencae 0:7423345f87c5 77 {
eencae 0:7423345f87c5 78 // Loop through each row of the bitmap image
eencae 0:7423345f87c5 79 for (unsigned int bitmap_row = 0; bitmap_row < _height; ++bitmap_row)
eencae 0:7423345f87c5 80 {
eencae 0:7423345f87c5 81 // Row index on the screen for rendering the row of pixels
eencae 0:7423345f87c5 82 unsigned int screen_row = y0 + bitmap_row;
eencae 0:7423345f87c5 83
eencae 0:7423345f87c5 84 // Render each pixel in the row
eencae 0:7423345f87c5 85 for (unsigned int bitmap_col = 0; bitmap_col < _width; ++bitmap_col)
eencae 0:7423345f87c5 86 {
eencae 0:7423345f87c5 87 // Column index on the screen for rendering this pixel
eencae 0:7423345f87c5 88 int screen_col = x0 + bitmap_col;
eencae 0:7423345f87c5 89
eencae 0:7423345f87c5 90 // Find the required value of the pixel at the given location within
eencae 0:7423345f87c5 91 // the bitmap data and then write it to the LCD screen
eencae 0:7423345f87c5 92 int pixel = get_pixel(bitmap_row, bitmap_col);
eencae 0:7423345f87c5 93 lcd.setPixel(screen_col, screen_row, pixel);
eencae 0:7423345f87c5 94 }
eencae 0:7423345f87c5 95 }
eencae 0:7423345f87c5 96 }