Adding atRange Modifier [Modifier 4 of 4]

src/proceduralItem/modifiers/restrictions/_list.zig

@@ -3,3 +3,4 @@ pub const @"and" = @import("and.zig");
 pub const encased = @import("encased.zig");
 pub const not = @import("not.zig");
 pub const @"or" = @import("or.zig");
+pub const atRange = @import("atRange.zig");

src/proceduralItem/modifiers/restrictions/atRange.zig

@@ -0,0 +1,54 @@
+const std = @import("std");
+
+const main = @import("main");
+const NeverFailingAllocator = main.heap.NeverFailingAllocator;
+const ModifierRestriction = main.items.ModifierRestriction;
+const ProceduralItem = main.items.ProceduralItem;
+const ZonElement = main.ZonElement;
+
+const Encased = struct {
+	tag: main.Tag,
+	amount: usize,
+	range: usize,
+};
+
+pub fn satisfied(self: *const Encased, proceduralItem: *const ProceduralItem, x: i32, y: i32) bool {
+	var count: usize = 0;
+	const lowBound = 0;
+	const highBound = self.range*2 + 1;
+	for (lowBound..highBound) |dx| {
+		const checkedX = x + @as(i32, @intCast(dx - self.range));
+		const checkedY = y + @as(i32, @intCast(2));
+		if ((proceduralItem.getItemAt(checkedX, checkedY) orelse continue).hasTag(self.tag)) count += 1;
+	}
+	for (lowBound..highBound) |dx| {
+		const checkedX = x + @as(i32, @intCast(dx - self.range));
+		const checkedY = y + @as(i32, @intCast(-2));
+		if ((proceduralItem.getItemAt(checkedX, checkedY) orelse continue).hasTag(self.tag)) count += 1;
+	}
+	for ((lowBound + 1)..(highBound - 1)) |dy| {
+		const checkedX = x + @as(i32, @intCast(-2));
+		const checkedY = y + @as(i32, @intCast(dy - self.range));
+		if ((proceduralItem.getItemAt(checkedX, checkedY) orelse continue).hasTag(self.tag)) count += 1;
+	}
+	for ((lowBound + 1)..(highBound - 1)) |dy| {
+		const checkedX = x + @as(i32, @intCast(2));
+		const checkedY = y + @as(i32, @intCast(dy - self.range));
+		if ((proceduralItem.getItemAt(checkedX, checkedY) orelse continue).hasTag(self.tag)) count += 1;
+	}
+	return count >= self.amount;
+}
+
+pub fn loadFromZon(allocator: NeverFailingAllocator, zon: ZonElement) *const Encased {
+	const result = allocator.create(Encased);
+	result.* = .{
+		.tag = main.Tag.find(zon.get([]const u8, "tag", "not specified")),
+		.amount = zon.get(usize, "amount", 8),
+		.range = zon.get(usize, "range", 2),
+	};
+	return result;
+}
+
+pub fn printTooltip(self: *const Encased, outString: *main.List(u8)) void {
+	outString.print("{} .{s} {s} {}", .{self.amount, self.tag.getName(), "is at range", self.range});
+}