Yudong Xiao / Mbed OS pokemon

This is test version of Pokemongo game. ELEC 2645 final project.

Dependencies:   Tone

pokeball/Bitmap.cpp@0:819c2d6a69ac, 2021-04-15 (annotated)

Committer:
shalwego
Date:
Thu Apr 15 15:35:12 2021 +0000
Revision:
0:819c2d6a69ac
Issue about music playing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shalwego 0:819c2d6a69ac 1 #include "Bitmap.h"
shalwego 0:819c2d6a69ac 2
shalwego 0:819c2d6a69ac 3 #include <iostream>
shalwego 0:819c2d6a69ac 4
shalwego 0:819c2d6a69ac 5 #include "N5110.h"
shalwego 0:819c2d6a69ac 6
shalwego 0:819c2d6a69ac 7 Bitmap::Bitmap(int const *contents,
shalwego 0:819c2d6a69ac 8 unsigned int const height,
shalwego 0:819c2d6a69ac 9 unsigned int const width)
shalwego 0:819c2d6a69ac 10 :
shalwego 0:819c2d6a69ac 11 _contents(std::vector<int>(height*width)),
shalwego 0:819c2d6a69ac 12 _height(height),
shalwego 0:819c2d6a69ac 13 _width(width)
shalwego 0:819c2d6a69ac 14 {
shalwego 0:819c2d6a69ac 15 // Perform a quick sanity check of the dimensions
shalwego 0:819c2d6a69ac 16 if (_contents.size() != height * width) {
shalwego 0:819c2d6a69ac 17 std::cerr << "Contents of bitmap has size " << _contents.size()
shalwego 0:819c2d6a69ac 18 << " pixels, but its dimensions were specified as "
shalwego 0:819c2d6a69ac 19 << width << " * " << height << " = " << width * height << std::endl;
shalwego 0:819c2d6a69ac 20 }
shalwego 0:819c2d6a69ac 21
shalwego 0:819c2d6a69ac 22 for(unsigned int i = 0; i < height*width; ++i) _contents[i] = contents[i];
shalwego 0:819c2d6a69ac 23 }
shalwego 0:819c2d6a69ac 24
shalwego 0:819c2d6a69ac 25 /**
shalwego 0:819c2d6a69ac 26 * @returns the value of the pixel at the given position
shalwego 0:819c2d6a69ac 27 */
shalwego 0:819c2d6a69ac 28 int Bitmap::get_pixel(unsigned int const row,
shalwego 0:819c2d6a69ac 29 unsigned int const column) const
shalwego 0:819c2d6a69ac 30 {
shalwego 0:819c2d6a69ac 31 // First check that row and column indices are within bounds
shalwego 0:819c2d6a69ac 32 if(column >= _width || row >= _height)
shalwego 0:819c2d6a69ac 33 {
shalwego 0:819c2d6a69ac 34 std::cerr << "The requested pixel with index " << row << "," << column
shalwego 0:819c2d6a69ac 35 << "is outside the bitmap dimensions: " << _width << ","
shalwego 0:819c2d6a69ac 36 << _height << std::endl;
shalwego 0:819c2d6a69ac 37 }
shalwego 0:819c2d6a69ac 38
shalwego 0:819c2d6a69ac 39 // Now return the pixel value, using row-major indexing
shalwego 0:819c2d6a69ac 40 return _contents[row * _width + column];
shalwego 0:819c2d6a69ac 41 }
shalwego 0:819c2d6a69ac 42
shalwego 0:819c2d6a69ac 43 /**
shalwego 0:819c2d6a69ac 44 * @brief Prints the contents of the bitmap to the terminal
shalwego 0:819c2d6a69ac 45 */
shalwego 0:819c2d6a69ac 46 void Bitmap::print() const
shalwego 0:819c2d6a69ac 47 {
shalwego 0:819c2d6a69ac 48 for (unsigned int row = 0; row < _height; ++row)
shalwego 0:819c2d6a69ac 49 {
shalwego 0:819c2d6a69ac 50 // Print each element of the row
shalwego 0:819c2d6a69ac 51 for (unsigned int column = 0; column < _width; ++column)
shalwego 0:819c2d6a69ac 52 {
shalwego 0:819c2d6a69ac 53 int pixel = get_pixel(row, column);
shalwego 0:819c2d6a69ac 54 std::cout << pixel;
shalwego 0:819c2d6a69ac 55 }
shalwego 0:819c2d6a69ac 56
shalwego 0:819c2d6a69ac 57 // And then terminate with a new-line character
shalwego 0:819c2d6a69ac 58 std::cout << std::endl;
shalwego 0:819c2d6a69ac 59 }
shalwego 0:819c2d6a69ac 60 }
shalwego 0:819c2d6a69ac 61
shalwego 0:819c2d6a69ac 62 /**
shalwego 0:819c2d6a69ac 63 * @brief Renders the contents of the bitmap onto an N5110 screen
shalwego 0:819c2d6a69ac 64 *
shalwego 0:819c2d6a69ac 65 * @param[in] lcd The screen to use for rendering
shalwego 0:819c2d6a69ac 66 * @param[in] x0 The horizontal position in pixels at which to render the bitmap
shalwego 0:819c2d6a69ac 67 * @param[in] y0 The vertical position in pixels at which to render the bitmap
shalwego 0:819c2d6a69ac 68 *
shalwego 0:819c2d6a69ac 69 * @details Note that x0, y0 gives the location of the top-left of the bitmap on
shalwego 0:819c2d6a69ac 70 * the screen.
shalwego 0:819c2d6a69ac 71 * This function only updates the buffer on the screen. You still need
shalwego 0:819c2d6a69ac 72 * to refresh the screen in order to actually see the bitmap.
shalwego 0:819c2d6a69ac 73 */
shalwego 0:819c2d6a69ac 74 void Bitmap::render(N5110 &lcd,
shalwego 0:819c2d6a69ac 75 unsigned int const x0,
shalwego 0:819c2d6a69ac 76 unsigned int const y0) const
shalwego 0:819c2d6a69ac 77 {
shalwego 0:819c2d6a69ac 78 // Loop through each row of the bitmap image
shalwego 0:819c2d6a69ac 79 for (unsigned int bitmap_row = 0; bitmap_row < _height; ++bitmap_row)
shalwego 0:819c2d6a69ac 80 {
shalwego 0:819c2d6a69ac 81 // Row index on the screen for rendering the row of pixels
shalwego 0:819c2d6a69ac 82 unsigned int screen_row = y0 + bitmap_row;
shalwego 0:819c2d6a69ac 83
shalwego 0:819c2d6a69ac 84 // Render each pixel in the row
shalwego 0:819c2d6a69ac 85 for (unsigned int bitmap_col = 0; bitmap_col < _width; ++bitmap_col)
shalwego 0:819c2d6a69ac 86 {
shalwego 0:819c2d6a69ac 87 // Column index on the screen for rendering this pixel
shalwego 0:819c2d6a69ac 88 int screen_col = x0 + bitmap_col;
shalwego 0:819c2d6a69ac 89
shalwego 0:819c2d6a69ac 90 // Find the required value of the pixel at the given location within
shalwego 0:819c2d6a69ac 91 // the bitmap data and then write it to the LCD screen
shalwego 0:819c2d6a69ac 92 int pixel = get_pixel(bitmap_row, bitmap_col);
shalwego 0:819c2d6a69ac 93 lcd.setPixel(screen_col, screen_row, pixel);
shalwego 0:819c2d6a69ac 94 }
shalwego 0:819c2d6a69ac 95 }
shalwego 0:819c2d6a69ac 96 }