Civcraft2Import:Guides/vault

====== Vault ======

'A typical DRO vault with a 1:1 ratio'

Introduction

A Vault is a means of safekeeping valuables in Civcraft by encasing them in some structure that impedes raiders. The typical vault design in Civcraft is that of a pyramid of diamond-reinforced obsidian blocks (DRO) located at bedrock, such that raiders must spend considerable time breaking through them in order to reach the treasures within.

A layer of a vault is the total amount of blocks horizontally from the chest, including the chest, to the outer most block. In so a 1 layer vault is only a chest, a 2 layer vault is a chest with 5 DRO around it.

A ratio is the ratio of the number blocks horizontally to the amount of blocks vertically. Ratios are preferred due to slopes because of certain mathematical reasons which will be below.

Each layer of a DRO vault fully covers the old one, requiring a raider to break an additional DRO block or blocks before moving closer to the treasure at the heart. DRO vaults are often characterized by their width-height ratio, or slope, with 1:1 being the most basic, and 5:6 being preferred to counter certain advanced vault-breaking tactics. 1:1 vaults are also called normal vaults.

Building Vaults

DRO vaults are often characterized by their width-height ratio, or slope, with 1:1 being the most basic, and 5:6 being preferred to counter certain advanced vault-breaking tactics. The following quick-reference table shows the number of additional DRO blocks for each layer, and the total DRO count for the entire vault as each layer is added. The numbers assume 1:1 slope with a single chest at the core, which is counted as a DRO block itself in the "Vault Total" column.

Layer Number	Additional Blocks	Vault Total
1	1	1
2	5	6
3	13	19
4	25	44
5	41	85
6	61	146
7	85	231
8	113	344
9	145	489
10	181	670
11	221	891
12	265	1156
13	313	1469
14	365	1834
15	421	2255
16	481	2736
17	545	3281
18	613	3894
19	685	4579
20	761	5340
21	841	6181
22	925	7106
23	1013	8119
24	1105	9224
25	1201	10425
26	1301	11726
27	1405	13131
28	1513	14644
29	1625	16269
30	1741	18010
31	1861	19871
32	1985	21856
33	2113	23969
34	2245	26214
35	2381	28595
36	2521	31116
37	2665	33781
38	2813	36594
39	2965	39559
40	3121	42680
41	3281	45961
42	3445	49406
43	3613	53019
44	3785	56804
45	3961	60765
46	4141	64906
47	4325	69231
48	4513	73744
49	4705	78449
50	4901	83350

Math of Vaults

A basic 1:1 vault follows the Octahedral numbers.

This function is as follows: C(L) = 2L^3 + L

The cost of an additional layer follows Centered square numbers

This function is as follows: Ca(L) = 2L(L+1)+1

Ribagi made a post detailing how to find total cost of a non-normal ratio vault here.

Bedrock Layering

While most of the Civcraft map has entirely flat bedrock, certain random chunks still have a "vanilla" distribution of bedrock, which is uneven and peppered with nooks and crannies. By placing a chest in one of these nooks, one can reduce the effective number of "layers" of the vault by one or more. For especially large vaults, this can result in thousands of DRO saved given the number of layers.

World Edge Vaults

Placing a vault at the edge of the map, beyond which players are teleported back, can allow a vault using as little as half the number of DRO blocks for a given layer number. The edge of the world acts as an impossible-to-cross barrier that the builder can straddle a vault over, only having the build the side within the map border. Any player who tries to go around behind the vault will be teleported to the outside of it.

Breaking Vaults

Breaking vaults is often a time-consuming affair, executed over multiple hours with as many allies as possible, as each layer of DRO must be broken through, a slow process even with Efficiency V pickaxes. During the operation, the vaultbreakers may be subject to attack by the owners

DRO Spike

A "DRO Spike" is a method of breaking vaults over the course of multiple sessions. When a session is over, the vaultbreakers will back out of their partial hole and fill it with their own reinforced DRO. When they log in again, they can thus bypass the reinforcements on their own blocks and resume where they left off. The vault owner must either break the spike and replace it with their own DRO again, or move the entire vault away from the spike.