chore: investigate bug

(And find/fix nothing)

src/items.zig

@@ -235,8 +235,8 @@ pub const RINGS = [_]ItemTemplate{
     .{ .w = 9, .i = .{ .r = ObscurationRing } },
 };
 pub const NIGHT_RINGS = [_]ItemTemplate{
-    .{ .w = 9, .i = .{ .r = ExcisionRing } },
     .{ .w = 9, .i = .{ .r = ConjurationRing } },
+    .{ .w = 9, .i = .{ .r = ExcisionRing } },
 };
 pub const ALL_ITEMS = [_]ItemTemplate{
     .{ .w = 0, .i = .{ .List = &ITEM_DROPS } },

src/main.zig

@@ -641,9 +641,18 @@ fn viewerMain() void {
     // std.log.info("Average% open space: {}", .{avg});
     // std.log.info("Min open space: {}", .{open_space_min});
     // std.log.info("Max open space: {}", .{open_space_max});
-    // std.log.info("Deviation: ±{}", .{math.max(open_space_max - avg, avg - open_space_min)});
+    // std.log.info("Deviation: ±{}", .{dev});
 
     // if (true) return;
+    //
+    // if (true) {
+    //     var i: usize = 100000;
+    //     while (i > 0) : (i -= 1) {
+    //         const ring = items.createItemFromTemplate(mapgen.chooseRing(true));
+    //         std.log.info("Chose ring {s}", .{ring.Ring.name});
+    //     }
+    //     return;
+    // }
 
     // Wrap whole thing in comptime if condition to ensure no linker errors
     if (build_options.use_sdl) {

src/mapgen.zig

@@ -435,7 +435,7 @@ fn choosePoster(level: usize) ?*const Poster {
     return null;
 }
 
-fn chooseRing(night: bool) ItemTemplate {
+pub fn chooseRing(night: bool) ItemTemplate {
     const drop_list = if (night) &items.NIGHT_RINGS else &items.RINGS;
     return _chooseLootItem(drop_list, minmax(usize, 1, 999), null);
 }

src/rng.zig

@@ -118,8 +118,8 @@ pub fn choose2(comptime T: type, arr: []const T, comptime weight_field: []const
     var weight_total: usize = 0;
     var selected = arr[0];
 
-    for (arr) |item, index| {
-        const weight = @field(arr[index], weight_field);
+    for (arr) |item| {
+        const weight = @field(item, weight_field);
         if (weight == 0) continue;
 
         const rnd = rng.random().int(usize) % (weight_total + weight);