SnakeOfLegends/game.cpp at master · Woryk/SnakeOfLegends · GitHub

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#include <SDL2/SDL.h>
#include "game.hpp"
#include <cstdlib>
#include <ctime>
#include <iostream>

///////////////////////////////////////////////////////
// Function loading Map
///////////////////////////////////////////////////////
void LoadMap(int SelectedLevel,float** table2D,int dim_allocated,int map_width,int map_height)
{

    ////////////////////////////////
	// Map file reading
    char MapLevel[20] = "";
	sprintf(MapLevel, "levels/niv%d.txt", SelectedLevel);

	// Opening map file
	FILE *fmap;
	fmap = fopen(MapLevel, "r");

	// Attributing 2D table values from map file
	int car_actuel;
	for (int i = 0; i < map_width; i++) {
		for (int j = 0; j < map_height; j++) {
			car_actuel = fgetc(fmap);
			if(car_actuel != 10 && car_actuel != -1) {
				table2D[i][j] = car_actuel;
			}
		}
	}
}

///////////////////////////////////////////////////////
// Map drawing function
///////////////////////////////////////////////////////
void DrawMap(SDL_Surface* screen, SDL_Texture* wall, float** table, int map_width, int map_height, int tile_width, int tile_height, SDL_Renderer * sdlRenderer)
{
	SDL_Rect Rect_dest;
    SDL_Rect Rect_source = {0, 0, 30, 30};
	Rect_dest.w = tile_width;
	Rect_dest.h = tile_height;
	for (int i = 0; i < map_width; i++) {
		for (int j = 0; j < map_height; j++) {
			if (table[i][j] == 49) {
				Rect_dest.x = i*tile_width;
				Rect_dest.y = j*tile_height;
				SDL_RenderCopy(sdlRenderer, wall, &Rect_source, &Rect_dest);
			}
		}
	}
}


///////////////////////////////////////////////////////
// Fruit drawing function
///////////////////////////////////////////////////////
void DrawFruits (struct Apple* apple, SDL_Texture* apple_texture,float** table, int map_width, int map_height, int tile_width, int tile_height, SDL_Renderer * sdlRenderer, struct Snake* snake, int* tailX, int* tailY)
{
    int randHeight, randWidth;
    randHeight = rand() % ((map_height-1) - 1 + 1);
    randWidth = rand() % ((map_width-1) - 1 + 1);
    SDL_Rect Rect_source = {0, 0, 30, 30};;
	SDL_Rect Rect_dest;
	Rect_dest.w = tile_width;
	Rect_dest.h = tile_height;
	apple->position.x = randWidth;
	apple->position.y = randHeight;
	std::cout << table[randWidth][randHeight] << std::endl;

    bool validCoords = false;
    // We check if random coordinates are not in a wall or the snake's head
    if ((table[randWidth][randHeight] != 49) && (snake->position.x != randWidth) && (snake->position.y != randHeight) )  {
        // After that we also check if the random coordinates
        for (int k = 0; k < snake->length; k++) {
            if ((tailX[k] != randHeight) && (tailY[k] != randWidth)) {
                validCoords = true;
            }
            else{ validCoords = false; }
        }
    }
    if(validCoords == true) {
        Rect_dest.x = randWidth*tile_width;
        Rect_dest.y = randHeight*tile_height;
        SDL_RenderCopy(sdlRenderer, apple_texture, &Rect_source, &Rect_dest);
    }
    else(DrawFruits(apple, apple_texture,table, map_width,map_height,tile_width,tile_height,sdlRenderer,snake,tailX,tailY));

}

///////////////////////////////////////////////////////
// Collision detection function
///////////////////////////////////////////////////////
void Collision (struct Apple* apple, struct Snake* snake,SDL_Texture* apple_texture,float** table, int map_width, int map_height, int tile_width, int tile_height, SDL_Renderer * sdlRenderer, bool* gameOver,int* tailX, int* tailY) {
    // Regenerate Apple if snake position equals apple position
    if  ((snake->position.x == apple->position.x) && (snake->position.y == apple->position.y)) {
        DrawFruits(apple, apple_texture, table, map_width, map_height,tile_width,tile_height,sdlRenderer,snake,tailX,tailY);
        snake->length++;
    }
        // Check if the snake touch his tail
    if(snake->length != 2) {
        for(int i = 0; i < snake->length; i++) {
            if((snake->position.x == tailX[i]) && (snake->position.y == tailY[i])) {
                *gameOver = true;
            }
        }
    }
    // Detect if the snake touch the walls
    if (table[snake->position.x][snake->position.y] == 49) {
        *gameOver = true;
    }
}