Ignore:
Timestamp:
05/20/23 03:16:30 (13 months ago)
Author:
Maciej Komosinski
Message:

Disabled "Ii" (energy ingestion/transfer rate) modifiers for f1/f4 mutations by default, as they are not useful in most standard evolutionary experiments

File:
1 edited

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Unmodified
Added
Removed
  • cpp/frams/genetics/geneprops.h

    r1242 r1245  
    1414
    1515#define F14_MODIFIERS_VISUAL "DdGgBb"
    16 #define F14_MODIFIERS_RARE "EeWwAaSs" //expdef would need to handle these properly/specifically to ensure reasonable behavior, and hardly any expdef does. Modifying initial energy of a creature as a result of its genes (Ee) is in general not a good idea. Weight (Ww) works only in water, and in water sinking/going up should usually be caused by real "intentional" activity of a creature, not by its inherited weight. For assimilation (Aa), there is a dedicated parameter in CreaturesGroup. Stamina (Ss) is no longer needed as destructive collisions are not supported, and even if they were, some expdef would need to impose reasonable restrictions on the value of this parameter (e.g. similar to normalizeBiol4()) so there is some cost associated with it, and the specific consequences of destructions should be defined as needed.
    17 #define F14_MODIFIERS "LlRrCcQqFfMmIi" F14_MODIFIERS_RARE F14_MODIFIERS_VISUAL
     16#define F14_MODIFIERS_RARE "EeWwSsAaIi" //An expdef would need to handle many of these properly/specifically to ensure reasonable behavior, and hardly any expdef does. Modifying initial energy of a creature as a result of its genes (Ee) is in general not a good idea, but may make sense in some specific competitive biological simulations. Weight (Ww) works only in water, and in water sinking/going up should usually be caused by real "intentional" activity of a creature, not by its inherited weight. Stamina (Ss) is no longer needed as destructive collisions are not supported, and even if they were, some expdef would need to impose reasonable restrictions on the value of this parameter (e.g. similar to normalizeBiol4()) so there is some cost associated with it, and the specific consequences of destructions should be defined as needed. For assimilation (Aa), there is a dedicated parameter in CreaturesGroup. Ingestion (Ii) influences how fast energy is transferred to Parts of a creature, and optimizing this property may make sense in experiments where energy is present in the environment and can be ingested - if needed, this modifier should be enabled for mutation.
     17#define F14_MODIFIERS "LlRrCcQqFfMm" F14_MODIFIERS_RARE F14_MODIFIERS_VISUAL
    1818
    1919
     
    106106 * "Biological" properties (assimilation, stamina, muscle strength and
    107107 * ingestion) can be normalized after modification with normalizeBiol4().
     108 * See also geneprops_test.cpp
    108109 */
    109110struct GeneProps
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