Breeding and Genetics

Breeding, Genetics & Litter Sizes

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🧬 Infobox: Genetics Summary

Parameter	Specification
Max Litter Size	Up to 4 puppies (bd_wolf_litter_max_size)
Extra Puppy Chance	20% per additional puppy (bd_wolf_litter_extra_chance)
Same Parent Inheritance	80% chance to inherit exact trait (bd_breed_same_chance)
Same Parent Mutation	10% chance to mutate variant (bd_breed_same_other_chance)
Mixed Dominant Chance	40% Normal inheritance (bd_breed_mixed_dominant_chance)
Mixed Recessive Chance	40% Variant inheritance (bd_breed_mixed_recessive_chance)
Diluted Normal Chance	50% Normal inheritance when breeding Aggro + Paci (bd_breed_diluted_normal_chance)
Physical Scale Range	70% (bd_wolf_min_scale_percent) to 145% (bd_wolf_max_scale_percent)
Inbreeding Cure	Golden Apple (minecraft:golden_apple) (bd_enable_inbred_curing)

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🎲 1. Genetic Inheritance Probabilities

When two tamed wolves are bred using meat, offspring personality is determined using dynamic weighted random calculations:

$$\text{Offspring Personality} = \begin{cases} \text{Parent Trait} & \text{Prob} = 80% \quad (\text{Matching Parents}) \\ \text{Variant Mutation} & \text{Prob} = 10% \quad (\text{Matching Parents}) \\ \text{Dominant Normal} & \text{Prob} = 40% \quad (\text{Normal + Variant}) \\ \text{Recessive Variant} & \text{Prob} = 40% \quad (\text{Normal + Variant}) \\ \text{Diluted Reversion} & \text{Prob} = 50% \quad (\text{Aggressive + Pacifist}) \end{cases}$$

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🐕 2. Variable Litter Sizes

Unlike vanilla breeding (which yields 1 puppy), Better Dogs calculates dynamic litter sizes from 1 to 4:

1. First Puppy: Guaranteed (100%).
2. Second Puppy: 20% roll (litter_two advancement).
3. Third Puppy: 20% roll (litter_three advancement).
4. Fourth Puppy: 20% roll (litter_four advancement).

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🧬 3. Inbreeding & Lineage Recovery

• Inbred Runt Penalty: Linebreeding closely related wolves (siblings or parent/child) tags offspring as is_inbred: 1b. Inbred runts suffer a max scale cap of 80% and emit subtle rotten flesh particles (bd_show_runt_particles).
• Golden Apple Cure: Feeding a Golden Apple to an inbred runt cures penalties, grants A Fresh Start advancement (+100 XP), and sets is_inbred: 0b.
• Outcrossing: Breeding an inbred runt with an unrelated wolf yields a healthy puppy (outcross_runt advancement).

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