Brought over a bunch of code from the roguelike and now will use it to generate a random map.

tilemap.cpp

@@ -0,0 +1,75 @@
+#include "tilemap.hpp"
+#include "dbc.hpp"
+#include "constants.hpp"
+
+using nlohmann::json;
+
+TileMap::TileMap(size_t width, size_t height) :
+  $config("./assets/tiles.json"),
+  $width(width),
+  $height(height),
+  $tile_ids(height, matrix::Row(width, SPACE_VALUE)),
+  $display(height, TileRow(width, {""}))
+{
+}
+
+void TileMap::dump(int show_x, int show_y) {
+  for(matrix::each_row it{$tile_ids}; it.next();) {
+    const TileCell &cell = $display[it.y][it.x];
+
+    if(int(it.x) == show_x && int(it.y) == show_y) {
+      fmt::print("{}<", cell.display);
+    } else {
+      fmt::print("{} ", cell.display);
+    }
+
+    if(it.row) fmt::print("\n");
+  }
+}
+
+void TileMap::set_tile(size_t x, size_t y, string tile_name) {
+    std::wstring tile_id = $config.wstring(tile_name, "display");
+    json tile_conf = $config[tile_name];
+    TileCell tile{
+      tile_conf["display"],
+        tile_conf["foreground"][0],
+        tile_conf["foreground"][1],
+        tile_conf["foreground"][2],
+        tile_conf["background"][0],
+        tile_conf["background"][1],
+        tile_conf["background"][2]};
+
+    $tile_ids[y][x] = tile_id[0];
+    $display[y][x] = tile;
+}
+
+void TileMap::load(matrix::Matrix &walls) {
+  for(matrix::each_cell it{walls}; it.next();) {
+    string tile_name = walls[it.y][it.x] == SPACE_VALUE ? "FLOOR_TILE" : "WALL_TILE";
+    set_tile(it.x, it.y, tile_name);
+  }
+}
+
+const TileCell &TileMap::at(size_t x, size_t y) {
+  return $display[y][x];
+}
+
+std::vector<std::string> TileMap::tile_names(bool collision) {
+  const auto &json = $config.json();
+  std::vector<std::string> keys;
+
+  for(const auto& el : json.items()) {
+    const auto &val = el.value();
+    if(val["collision"] == collision) {
+      keys.push_back(el.key());
+    }
+  }
+
+  return keys;
+}
+
+bool TileMap::INVARIANT() {
+  dbc::check(matrix::height($tile_ids) == $height, "$tile_ids has wrong height");
+  dbc::check(matrix::width($tile_ids) == $width, "$tile_ids has wrong width");
+  return true;
+}