114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
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#include "chess_board.h"
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#include <SDL.h>
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#include <SDL_video.h>
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#include "stdio.h"
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#define MARGIN 200
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typedef enum
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{
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SQUARE_EMPTY = 0,
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KING,
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QUEEN,
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ROOK,
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KNIGHT,
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BISHOP,
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PAWN
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};
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static int height;
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static int width;
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static SDL_Texture *board_texture;
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static SDL_Rect rectangle;
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static int board_width;
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uint8_t board_state[8][8] = 0u;
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bool click(SDL_Renderer *p_renderer, int x, int y)
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{
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SDL_Point const point = {x, y};
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bool ret_val = false;
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rectangle.w = board_width;
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rectangle.h = board_width;
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rectangle.x = (width - board_width) / 2;
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rectangle.y = (height - board_width) / 2;
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if (SDL_PointInRect(&point, &rectangle))
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{
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int square_size = board_width / 8;
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int starting_x = rectangle.x;
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rectangle.w = square_size;
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rectangle.h = square_size;
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for (size_t j = 0; j < 8; j++)
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{
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rectangle.x = starting_x;
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for (size_t i = 0; i < 8; i++)
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{
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if(SDL_PointInRect(&point, &rectangle))
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{
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goto draw_square;
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}
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rectangle.x += square_size;
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}
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rectangle.y += square_size;
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}
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draw_square:
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SDL_SetRenderTarget(p_renderer, board_texture);
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SDL_SetRenderDrawColor(p_renderer, 0x00, 0xFF, 0x00, 0x00);
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SDL_RenderDrawRect(p_renderer, &rectangle);
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SDL_RenderFillRect(p_renderer, &rectangle);
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SDL_SetRenderTarget(p_renderer, NULL);
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SDL_RenderCopy(p_renderer, board_texture, NULL, NULL);
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SDL_RenderPresent(p_renderer);
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}
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return ret_val;
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}
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void chess_board_init(SDL_Renderer *p_renderer, int w, int h)
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{
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width = w;
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height = h;
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SDL_DestroyTexture(board_texture);
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board_texture = SDL_CreateTexture(p_renderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, w, h);
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board_width = ((w > h) ? h : w ) - MARGIN;
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// get rid of rounding errors
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board_width -= board_width % 8;
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}
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void draw_board(SDL_Renderer *p_renderer)
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{
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SDL_SetRenderTarget(p_renderer, board_texture);
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SDL_SetRenderDrawColor(p_renderer, 0x7f, 0x7f, 0x7f, 0);
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SDL_RenderClear(p_renderer);
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SDL_RenderDrawRect(p_renderer, &rectangle);
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SDL_SetRenderDrawColor(p_renderer, 0xFF, 0xFF, 0xFF, 0x00);
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rectangle.w = board_width;
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rectangle.h = board_width;
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rectangle.x = (width - board_width) / 2;
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rectangle.y = (height - board_width) / 2;
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SDL_RenderFillRect(p_renderer, &rectangle);
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SDL_SetRenderDrawColor(p_renderer, 0, 0, 0, 0x00);
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int square_size = board_width / 8;
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int starting_x = rectangle.x;
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rectangle.w = square_size;
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rectangle.h = square_size;
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for (size_t j = 0; j < 8; j++)
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{
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rectangle.x = starting_x;
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if ((j % 2) == 0)
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{
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rectangle.x += square_size;
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}
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for (size_t i = 0; i < 4; i++)
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{
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SDL_RenderFillRect(p_renderer, &rectangle);
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rectangle.x += 2 * square_size;
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}
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rectangle.y += square_size;
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}
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SDL_SetRenderTarget(p_renderer, NULL);
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SDL_RenderCopy(p_renderer, board_texture, NULL, NULL);
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}
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