Spawn Normalization
In standard Minecraft, when mobs spawn in the world, a random position is selected: first, random x and z coordinates within a chunk are determined, then height y is chosen from 0 to the highest block in that column.
Problem with the standard algorithm: Height selection occurs uniformly across all possible levels from 0 to the top. This leads to several negative consequences:
- Most heights are unsuitable for spawning, as there's no free space there
- Slow spawning due to numerous failed attempts
- Efficient mob farms require upper blocks to be located near the zero mark
For example, in a Skyblock world where you live at height 65, mobs have only a 1/66 chance of actually spawning on your platform. This significantly slows down the process, reducing gameplay enjoyment.
Spawn Algorithms
This mod offers alternative mathematical algorithms for height selection. You decide which levels are preferable for creature spawning. The diagram below shows various probability distribution profiles (using height 65 as an example):
Available Algorithms:
- Vanilla - Standard mechanics with equal chances for all heights
- Surface Pref - Maximum probability of spawning on the surface, with gradual decrease around 50-55% of maximum height
- Skyblock - Special profile for sky worlds: maximum chances at heights from 60% and above, practically zero below 30%
- Two Layer - Two-layer approach: active spawn zones near the surface and at depth around 33%
- Surface Only - Exclusively ground spawning (with minor allowance for aquatic creatures)
Profile Inversion
Each algorithm can be inverted, replacing y with (maximum height - y). This allows transforming Surface Only into subterranean mob appearance (around bedrock), while Skyblock gains depth preference over height.
