add inventory paging, more elements

bin/combos.txt

@@ -9,3 +9,31 @@ wildfire;fire;fire
 smoke;fire;water
 puddle;water;water
 elements;air;earth;fire;water
+dirt;dust;earth
+clay;dirt;wind
+cobble;air;lava
+stone;cobble;earth
+gravel;cobble;wind
+blue;fire;heat
+steam;heat;water
+energy;steam;steam
+sky;air;wind
+sky;air;cloud
+space;sky;air
+space;sky;sky
+void;space;space
+zero;energy;void
+numbers;elements;zero
+one;numbers;numbers
+color;blue;numbers
+spectrum;color;numbers
+pond;puddle;earth
+pond;puddle;puddle
+lake;pond;water
+lake;pond;pond
+sea;lake;lake
+sea;lake;water
+ocean;sea;sea
+ocean;sea;land
+planet;ocean;earth
+planet;ocean;land

src/command.c

@@ -7,6 +7,20 @@
 
 #define MAX_BUF_LENGTH 1024
 #define MAX_COMBO_LENGTH 1024
+struct pager {
+  int page;
+  int i;
+};
+
+long stoi(const char *s) {
+  long i;
+  i = 0;
+  while (*s >= '0' && *s <= '9') {
+    i = i * 10 + (*s - '0');
+    s++;
+  }
+  return i;
+}
 
 int fix_delim(char *command, char *needle) {
   char *delim = strstr(command, needle);
@@ -33,6 +47,11 @@ int inv_handler(const void *key, unsigned long long size,
                 unsigned long long val, void *usr)
 #endif
 {
+  struct pager *i = usr;
+  i->i++;
+  if (i->i < i->page * 10 || i->i >= (i->page + 1) * 10) {
+    return 0;
+  }
   if (val == 0)
     return 0;
   char *key2 = (char *)key;
@@ -53,9 +72,18 @@ int slash_command(char *command, hashmap *inv) {
     return 0;
   }
 
-  if (strcmp(command, "inv\n") == 0) {
+  char *invs = "inv ";
-    printf("Your inventory:\n");
+
-    hashmap_iterate(inv, inv_handler, "inv");
+  if (strncmp(command, invs, strlen(invs)) == 0) {
+    int page = stoi(&command[strlen(invs)]);
+    printf("Your inventory (page %i):\n", page);
+    struct pager i = {.page = page - 1, .i = -1};
+    hashmap_iterate(inv, inv_handler, &i);
+  } else if (strncmp(command, invs, strlen(invs) - 1) == 0) {
+    int page = 1;
+    printf("Your inventory (page %i):\n", page);
+    struct pager i = {.page = page - 1, .i = -1};
+    hashmap_iterate(inv, inv_handler, &i);
   }
   return 1;
 }