GravitonBeamEffect.java

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package com.fs.starfarer.api.impl.combat;
 
import java.util.List;
 
import org.lwjgl.util.vector.Vector2f;
 
import com.fs.starfarer.api.combat.BeamAPI;
import com.fs.starfarer.api.combat.BeamEffectPlugin;
import com.fs.starfarer.api.combat.CombatEngineAPI;
import com.fs.starfarer.api.combat.CombatEntityAPI;
import com.fs.starfarer.api.combat.DamageAPI;
import com.fs.starfarer.api.combat.ShipAPI;
import com.fs.starfarer.api.combat.WeaponAPI;
import com.fs.starfarer.api.combat.listeners.AdvanceableListener;
import com.fs.starfarer.api.util.TimeoutTracker;
 
public class GravitonBeamEffect implements BeamEffectPlugin {
 
    public static float EFFECT_DUR = 1f;
    
    public static float DAMAGE_PERCENT_ONE = 5f;
    public static float DAMAGE_PERCENT_TWO = 8f;
    public static float DAMAGE_PERCENT_THREE = 10f;
    
    protected boolean wasZero = true;
    
    
    public void advance(float amount, CombatEngineAPI engine, BeamAPI beam) {
        CombatEntityAPI target = beam.getDamageTarget();
        if (target instanceof ShipAPI && beam.getBrightness() >= 1f && beam.getWeapon() != null) {
            float dur = beam.getDamage().getDpsDuration();
            // needed because when the ship is in fast-time, dpsDuration will not be reset every frame as it should be
            if (!wasZero) dur = 0;
            wasZero = beam.getDamage().getDpsDuration() <= 0;
            
            // beam tick, apply damage modifier effect if needed
            if (dur > 0) {
                boolean hitShield = target.getShield() != null && target.getShield().isWithinArc(beam.getTo());
                if (hitShield) {
                    ShipAPI ship = (ShipAPI) target;
                    if (!ship.hasListenerOfClass(GravitonBeamDamageTakenMod.class)) {
                        ship.addListener(new GravitonBeamDamageTakenMod(ship));
                    }
                    List<GravitonBeamDamageTakenMod> listeners = ship.getListeners(GravitonBeamDamageTakenMod.class);
                    if (listeners.isEmpty()) return; // ???
                    
                    GravitonBeamDamageTakenMod listener = listeners.get(0);
                    listener.notifyHit(beam.getWeapon());
                }
            }
        }
    }
    
 
    public static String DAMAGE_MOD_ID = "gravitonbeam_dam_mod";
 
    public static class GravitonBeamDamageTakenMod implements AdvanceableListener {
                            //implements DamageTakenModifier, AdvanceableListener {
        protected ShipAPI ship;
        protected TimeoutTracker<WeaponAPI> recentHits = new TimeoutTracker<WeaponAPI>();
        public GravitonBeamDamageTakenMod(ShipAPI ship) {
            this.ship = ship;
            //ship.addListener(new GravitonBeamDamageTakenModRemover(ship));
        }
        
        public void notifyHit(WeaponAPI w) {
            recentHits.add(w, EFFECT_DUR, EFFECT_DUR);
            
        }
        
        public void advance(float amount) {
            recentHits.advance(amount);
            
            int beams = recentHits.getItems().size();
 
            float bonus = 0;
            if (beams == 1) {
                bonus = DAMAGE_PERCENT_ONE;
            } else if (beams == 2) {
                bonus = DAMAGE_PERCENT_TWO;
            } else if (beams >= 3) {
                bonus = DAMAGE_PERCENT_THREE;
            }
            
            if (bonus > 0) {
                ship.getMutableStats().getShieldDamageTakenMult().modifyMult(DAMAGE_MOD_ID, 1f + bonus * 0.01f);
            } else {
                ship.removeListener(this);
                ship.getMutableStats().getShieldDamageTakenMult().unmodify(DAMAGE_MOD_ID);
            }
        }
 
        public String modifyDamageTaken(Object param,
                                        CombatEntityAPI target, DamageAPI damage,
                                        Vector2f point, boolean shieldHit) {
            return null;
        }
 
    }
 
}