src/server/schematic.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "server/schematic.h"
   4 #include "server/server_node.h"
   5 #include "terrain.h"
   6
   7 void schematic_load(List *schematic, const char *path, SchematicMapping *mappings, size_t num_mappings)
   8 {
   9         list_ini(schematic);
  10
  11         FILE *file = fopen(path, "r");
  12         if (!file) {
  13                 fprintf(stderr, "[warning] failed to open schematic %s\n", path);
  14                 return;
  15         }
  16
  17         char *line = NULL;
  18         size_t siz = 0;
  19         ssize_t length;
  20         int count = 0;
  21
  22         // getline is POSIX 2008, so we can use it
  23         while ((length = getline(&line, &siz, file)) > 0) {
  24                 count++;
  25
  26                 if (*line == '#')
  27                         continue;
  28
  29                 SchematicNode *node = malloc(sizeof *node);
  30
  31                 v3s32 color;
  32                 if (sscanf(line, "%d %d %d %2x%2x%2x",
  33                                 &node->pos.x, &node->pos.z, &node->pos.y,
  34                                 &color.x, &color.y, &color.z) != 6) {
  35                         fprintf(stderr, "[warning] syntax error in schematic %s in line %d: %s\n",
  36                                 path, count, line);
  37                         free(node);
  38                         continue;
  39                 }
  40
  41                 SchematicMapping *mapping = NULL;
  42                 for (size_t i = 0; i < num_mappings; i++)
  43                         if (v3s32_equals(color, mappings[i].color)) {
  44                                 mapping = &mappings[i];
  45                                 break;
  46                         }
  47
  48                 if (!mapping) {
  49                         fprintf(stderr, "[warning] color not mapped to node in schematic %s in line %d: %02x%02x%02x\n",
  50                                 path, count, color.x, color.y, color.z);
  51                         free(node);
  52                         continue;
  53                 }
  54
  55                 node->node = mapping->use_color
  56                         ? server_node_create_color(mapping->type, (v3f32) {
  57                                 (f32) color.x / 0xFF,
  58                                 (f32) color.y / 0xFF,
  59                                 (f32) color.z / 0xFF,
  60                         }) : server_node_create(mapping->type);
  61
  62                 list_apd(schematic, node);
  63         }
  64
  65         if (line)
  66                 free(line);
  67
  68         fclose(file);
  69 }
  70
  71 void schematic_place(List *schematic, v3s32 pos, TerrainGenStage tgs, List *changed_chunks)
  72 {
  73         LIST_ITERATE(schematic, list_node) {
  74                 SchematicNode *node = list_node->dat;
  75
  76                 server_terrain_gen_node(
  77                         v3s32_add(pos, node->pos),
  78                         server_node_copy(node->node),
  79                         tgs, changed_chunks);
  80         }
  81 }
  82
  83 static void delete_schematic_node(SchematicNode *node)
  84 {
  85         server_node_delete(&node->node);
  86         free(node);
  87 }
  88
  89 void schematic_delete(List *schematic)
  90 {
  91         list_clr(schematic, &delete_schematic_node, NULL, NULL);
  92 }