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mapgen.c (2174B)

      1 #include <stdio.h>
      2 #include <stdlib.h>
      3 #include <string.h>
      4 #include <time.h>
      5 
      6 #define POS(x) ((x < 0) ? 0 : x)
      7 #define RANDINT(lower, upper) (lower + (rand() % (upper - lower)))
      8 
      9 char *map;
     10 char *npcs = "EAWKLP";
     11 char *special = "TCH";
     12 
     13 void
     14 mk_square(int x, int y, int w) {
     15 	x = POS(x - w/2);
     16 	y = POS(y - w/2);
     17 	
     18 	for (int i = y; (i - y) < w && i < 1000; i++) {
     19 		for (int j = x; (j - x) < w && j < 1000; j++) {
     20 			if (map[j + (i * 1000)] == '#') {
     21 				if (rand() % 17 == 0) 
     22 					map[j + (i * 1000)] = '.'; 
     23 				else 
     24 					map[j + (i * 1000)] = ' '; 
     25 			}
     26 		}
     27 	}
     28 }
     29 
     30 void
     31 mk_line(int x1, int y1, int x2, int y2, int w) {
     32 	float m = (float)((float)(y2 - y1) / (float)(x2 - x1));
     33 	float c = y1 - (m * x1);
     34 
     35 	int dir = (x1 < x2) ? 1 : -1;
     36 
     37 	for (int i = x1; i != x2; i += dir) {
     38 		mk_square(i, (m * i + c), 10);
     39 	}
     40 }
     41 
     42 void
     43 place_npc(int x, int y) {
     44 	if (!*npcs) return;
     45 	map[x + y * 1000] = *npcs;	
     46 	npcs++;
     47 }
     48 
     49 void 
     50 mk_map(int x, int y, int w) {
     51 	int x2, y2;
     52 	if (w < 30) return;
     53 
     54 	mk_square(x, y, w);
     55 
     56 	srand(time(NULL));
     57 	for (int i = 0; i < 4; i++) {
     58 		x2 = (rand() % (w * 3));
     59 		y2 = (rand() % (w * 3));
     60 		x2 = (rand() % 2) ? x2 : -x2;
     61 		y2 = (rand() % 2) ? y2 : -y2;
     62 		mk_line(x, y, x + x2, y + y2, 1);
     63 		mk_map(x + x2, y + y2, w / 2);
     64 		place_npc(x + x2, y + y2);
     65 	}
     66 }
     67 
     68 void
     69 place_special1() {
     70 	int x, y;
     71 	do {
     72 		x = RANDINT(300, 700);
     73 		y = RANDINT(500, 800);
     74 	} while (map[x + y * 1000] != ' ');
     75 
     76 	map[x + y * 1000] = 'T';
     77 }
     78 
     79 void
     80 place_special2() {
     81 	int x, y;
     82 	do {
     83 		x = RANDINT(200, 500);
     84 		y = RANDINT(300, 700);
     85 	} while (map[x + y * 1000] != ' ');
     86 
     87 	map[x + y * 1000] = 'C';
     88 }
     89 
     90 void
     91 place_special3() {
     92 	int x, y;
     93 	do {
     94 		x = RANDINT(500, 800);
     95 		y = RANDINT(500, 800);
     96 	} while (map[x + y * 1000] != ' ');
     97 
     98 	map[x + y * 1000] = 'H';
     99 }
    100 
    101 void 
    102 print_map() {
    103 	printf(".globl map\n.data\nmap:\n.byte ");
    104 	for (int i = 0; i < 1000; i++) {
    105 		for (int j = 0; j < 1000; j++) 
    106 			printf("'%c'%s", map[j + (i * 1000)], (j == 999) ? "" : ", ");
    107 		printf("\n%s", (i == 999) ? "" : ".byte ");
    108 	}
    109 }
    110 
    111 
    112 int 
    113 main() {
    114 	map = malloc(1000 * 1000);
    115 	memset(map, '#', 1000 * 1000);
    116 	mk_map(500, 500, 100);
    117 
    118 	place_special1();
    119 	place_special2();
    120 	place_special3();
    121 
    122 	print_map();
    123 }