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diff --git a/src/org/blog/c/game.org b/src/org/blog/c/game.org new file mode 100644 index 0000000..3ed154e --- /dev/null +++ b/src/org/blog/c/game.org @@ -0,0 +1,241 @@ +#+title: The loneliness Game +#+AUTHOR: Crystal +#+OPTIONS: ^:{} +#+OPTIONS: num:nil +#+EXPORT_FILE_NAME: ../../../../blog/c/game.html +#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="../../src/css/colors.css"/> +#+HTML_HEAD: <link rel="stylesheet" type="text/css" href="../../src/css/style.css"/> +#+OPTIONS: html-style:nil +#+OPTIONS: toc:nil +#+HTML_HEAD: <link rel="icon" type="image/x-icon" href="../../../favicon.png"> +#+HTML_LINK_HOME: https://crystal.tilde.institute/ + + + +Hello !!, I hope you are doing great you amazing person whoever you are, and I really appreciate you reading my little C programming adventure. Soo basically I wanted to blog about a little game I made when bored, and figured out it would be a great way to optimize it, and learn new stuff too by documenting the process! + + +** The concept : +Basically the player is faced with a NxM field made up with the sign *"-"* and the player is denoted by the symbol *"+"*, there are also Bonuses *"B"* which add 1 to your score, Traps *"T"*, that remove one from your score, and Dead *"D"* which resets the score to 0. I will go into more of the specifics later but for now this is how it works, and the controls are Basic WASD bindings, though i may go for a HJKL style later. + +** The code : + #+BEGIN_SRC c -n +#include <stdio.h> +#include <stdlib.h> +int main(int argc, char *argv[]) { + char input,map[5][5] = { + {'-', '-', '-', '-', '-'}, + {'-', '-', '-', '-', '-'}, + {'-', '-', '-', '-', '-'}, + {'-', '-', '-', '-', '-'}, + {'-', '-', '-', '-', '-'} + }; + int stop=0,i=0,moves=0,score=0,pos[2] = {2, 2}; + int bonus[2]; + int trap[2] ; + int death[2]; + map[pos[0]][pos[1]] = '+'; + do{ + bonus[0] = arc4random_uniform(5); bonus[1] = arc4random_uniform(5); + trap[0] = arc4random_uniform(5); trap[1] = arc4random_uniform(5); + death[0] = arc4random_uniform(5); death[1] = arc4random_uniform(5); + }while((bonus[0] == trap[0] && bonus[1] == trap[1]) || (bonus[0] == death[0] && bonus[1] == death[1]) || (trap[0] == death[0] && trap[1] == death[1]) || (bonus[0] == pos[0] && bonus[1] == pos[1]) || (trap[0] == pos[0] && trap[1] == pos[1]) || (death[0] == pos[0] && death[1] == pos[1])); + map[bonus[0]][bonus[1]] = 'B'; + map[trap[0]][trap[1]] = 'T'; + map[death[0]][death[1]] = 'D'; + do{ + printf("Map:\n"); + for (int i = 0; i < 5; i++) { + for (int j = 0; j < 5; j++) { + printf("%c ", map[i][j]); + } + printf("\n"); + } + printf("Score: %d\n", score); + printf("Moves: %d\n", moves); + printf("Enter a direction (w,a,s,d) or c to quit: "); + scanf(" %c", &input); +// pos[0] updown pos[1] lr + if (input == 'w') { + printf("Moving up\n"); + map[pos[0]][pos[1]] = '-'; + if (pos[0] == 0) { + pos[0] = 4; + } + else { + pos[0]--; + } + } else if (input == 'a') { + printf("Moving left\n"); + map[pos[0]][pos[1]] = '-'; + if (pos[1] == 0) { + pos[1] = 4; + } + else { + pos[1]--; + } + } else if (input == 's') { + + printf("Moving down\n"); + map[pos[0]][pos[1]] = '-'; + if (pos[0] == 4) { + pos[0] = 0; + } + else { + pos[0]++; + } + } else if (input == 'd') { + printf("Moving right\n"); + map[pos[0]][pos[1]] = '-'; + if (pos[1] == 4) { + pos[1] = 0; + } + else { + pos[1]++; + } + } else if (input == 'c') { + printf("Quitting\n"); + } else { + printf("Invalid input\n"); + } + map[pos[0]][pos[1]] = '+'; + if (pos[0] == bonus[0] && pos[1] == bonus[1]) { + score++; + do{ + bonus[0]= arc4random_uniform(5); + bonus[1]= arc4random_uniform(5); + }while((bonus[0] == trap[0] && bonus[1] == trap[1]) || (bonus[0] == death[0] && bonus[1] == death[1]) || (bonus[0] == pos[0] && bonus[1] == pos[1])); + } + if (pos[0] == trap[0] && pos[1] == trap[1]) { + score--; + do{ + trap[0]= arc4random_uniform(5); + trap[1]= arc4random_uniform(5); + }while((trap[0] == bonus[0] && trap[1] == bonus[1]) || (trap[0] == death[0] && trap[1] == death[1]) || (trap[0] == pos[0] && trap[1] == pos[1])); + } + if (pos[0] == death[0] && pos[1] == death[1]) { + score = 0; + do{ + death[0]= arc4random_uniform(5); + death[1]= arc4random_uniform(5); + }while((death[0] == bonus[0] && death[1] == bonus[1]) || (death[0] == trap[0] && death[1] == trap[1]) || (death[0] == pos[0] && death[1] == pos[1])); + } + if (score % 3 == 0 && score != 0 && stop == 0) { + map[death[0]][death[1]] = '-'; + do{ + death[0]= arc4random_uniform(5); + death[1]= arc4random_uniform(5); + }while((death[0] == bonus[0] && death[1] == bonus[1]) || (death[0] == trap[0] && death[1] == trap[1]) || (death[0] == pos[0] && death[1] == pos[1])); + stop = 1; + } + else if (score % 3 != 0) { + stop = 0; + } + if (moves % 5 == 0 && moves != 0) { + do{ + map[trap[0]][trap[1]] = '-'; + trap[0]= arc4random_uniform(5); + trap[1]= arc4random_uniform(5); + }while((trap[0] == bonus[0] && trap[1] == bonus[1]) || (trap[0] == death[0] && trap[1] == death[1]) || (trap[0] == pos[0] && trap[1] == pos[1])); + + } + map[bonus[0]][bonus[1]] = 'B'; + map[trap[0]][trap[1]] = 'T'; + map[death[0]][death[1]] = 'D'; + moves++; + }while(input != 'c'); + return 0; +} + + #+END_SRC + + + Let's go step by step and see what we can fix or improve, to start off, line 4 to 10 can be reduced to a single line (which will be beneficial later too) + #+BEGIN_SRC c -n 4 +char input,map[5][5] = {'-'}; + #+END_SRC + Much better...but can be even more better, why stop at 5 when we can give the choice to the user !! + #+BEGIN_SRC c -n 4 +int n=5,m=5; +char input,map[n][m]={'-'}; + #+END_SRC + + For now at least, n and m are hardcoded to 5, but this will change later. + + Of course we have the usual inits on line 11, though since we are using variables instead of hardcoding 5, we will have to find the center by ourselves + #+BEGIN_SRC c -n 11 + int stop=0,i=0,moves=0,score=0,pos[2] = {n/2,m/2}; + #+END_SRC + +This is getting better, of course we then initialize the coordinates of bonus, trap, and death, and set the player as a *'+'* in the field. + + +Here comes the line 17-21, where it generates a random coordinate for the aforementioned pickups, and do that until there is no conflict between eachother and the player) here we will need to change it a tiny bit. + #+BEGIN_SRC c -n 17 + bonus[0] = arc4random_uniform(n); bonus[1] = arc4random_uniform(m); + trap[0] = arc4random_uniform(n); trap[1] = arc4random_uniform(m); + death[0] = arc4random_uniform(n); death[1] = arc4random_uniform(m); + #+END_SRC + +Looking good so far!!, We then have line 21-23 which also shows the pickups as their respective symbols in the map. + + +The main interactive program starts here, which will learn at least one time and stop if the received input is a *'c'*, it starts with a nested for loop on line 26 up to 31 to show the content of the map, nothing fancy, just some matrix stuff. we need to change the 5 though! + #+BEGIN_SRC c -n 26 + for (int i = 0; i < n; i++) { + for (int j = 0; j < m; j++) { + printf("%c ", map[i][j]); + } + printf("\n"); + } + + #+END_SRC +We show the score and the moves too, which at the start of the game are set to 0. and we prompt the user for a direction. Note here the space before the %c, this basically allows for the program to not choke on newlines and also even if the user writes multiple keys at the same time, they will still be done, like *ww* will make the player move twice up. + +After that we have some logic which should also be changed to account for the n and m changes yet again +#+BEGIN_SRC c -n 37 + if (input == 'w') { + printf("Moving up\n"); + map[pos[0]][pos[1]] = '-'; + if (pos[0] == 0) { + pos[0] = n-1; + } + else { + pos[0]--; + } + } else if (input == 'a') { + printf("Moving left\n"); + map[pos[0]][pos[1]] = '-'; + if (pos[1] == 0) { + pos[1] = m-1; + } + else { + pos[1]--; + } + } else if (input == 's') { + + printf("Moving down\n"); + map[pos[0]][pos[1]] = '-'; + if (pos[0] == n-1) { + pos[0] = 0; + } + else { + pos[0]++; + } + } else if (input == 'd') { + printf("Moving right\n"); + map[pos[0]][pos[1]] = '-'; + if (pos[1] == m-1) { + pos[1] = 0; + } + else { + pos[1]++; + } + } else if (input == 'c') { + printf("Quitting\n"); + } else { + printf("Invalid input\n"); + } +#+END_SRC + +What this achieves is the "teleportation effect" whenever you are at the border of the screen! |