ColdConditionGenerator.java

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package com.fs.starfarer.api.impl.campaign.procgen;
 
import java.util.Set;
 
import com.fs.starfarer.api.campaign.PlanetAPI;
import com.fs.starfarer.api.impl.campaign.ids.Conditions;
import com.fs.starfarer.api.impl.campaign.procgen.PlanetConditionGenerator.ConditionGenerator;
import com.fs.starfarer.api.impl.campaign.procgen.StarSystemGenerator.GenContext;
 
public class ColdConditionGenerator implements ConditionGenerator {
    
    public void addConditions(Set<String> conditionsSoFar, GenContext context, PlanetAPI planet) {
 
        int orbitIndex = context.orbitIndex;
        if (context.parent != null) orbitIndex = context.parentOrbitIndex;
        
        float normalIndex = context.starData.getHabZoneStart() + 2;
        float veryIndex = context.starData.getHabZoneStart() + 4;
        float eitherIndex = context.starData.getHabZoneStart() + 3;
        
        boolean matchVery = orbitIndex >= veryIndex;
        boolean matchNormal = !matchVery && orbitIndex >= normalIndex;
        boolean matchEither = orbitIndex == eitherIndex;
        if (matchEither) {
            matchNormal = StarSystemGenerator.random.nextFloat() < 0.5f;
            matchVery = !matchNormal;
        }
 
        boolean hasNormal = conditionsSoFar.contains(Conditions.COLD);
        boolean hasVery = conditionsSoFar.contains(Conditions.VERY_COLD);
        
        
        // if there's a baked-in "very cold" condition, don't downgrade it to "cold"
        if (matchNormal && !hasVery && !hasNormal &&
                 PlanetConditionGenerator.preconditionsMet(Conditions.COLD, conditionsSoFar)) {
            conditionsSoFar.add(Conditions.COLD);
            return;
        }
        
        // can, howeved, upgrade a "cold" to a "very cold" provided preconditions are met
        // (i.e. can't upgrade a tundra to "very cold" because "very cold" requires not habitable)
        if (matchVery && !hasVery && 
                PlanetConditionGenerator.preconditionsMet(Conditions.VERY_COLD, conditionsSoFar)) {
            conditionsSoFar.remove(Conditions.COLD);
            conditionsSoFar.add(Conditions.VERY_COLD);
            return;
        }
    }
 
}