TenebrousExpulsionSystemScript.java

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package com.fs.starfarer.api.impl.combat.dweller;
 
import org.lwjgl.util.vector.Vector2f;
 
import com.fs.starfarer.api.Global;
import com.fs.starfarer.api.combat.CombatEngineAPI;
import com.fs.starfarer.api.combat.CombatFleetManagerAPI;
import com.fs.starfarer.api.combat.MutableShipStatsAPI;
import com.fs.starfarer.api.combat.ShipAPI;
import com.fs.starfarer.api.combat.ShipwideAIFlags.AIFlags;
import com.fs.starfarer.api.impl.combat.BaseShipSystemScript;
import com.fs.starfarer.api.impl.combat.dweller.VortexLauncherEffect.DisturbShroudPlugin;
import com.fs.starfarer.api.util.Misc;
 
public class TenebrousExpulsionSystemScript extends BaseShipSystemScript {
    
    public static String EJECTA_WING = "shrouded_ejecta_wing";
    
    public static float REFIRE_DELAY = 0.15f;
    public static float LAUNCH_ARC = 90f;
    public static float BACK_OFF_ACCEL = 500f;
    
    protected Vector2f fireDir;
    protected float elapsedActive = REFIRE_DELAY;
    
    protected void init(ShipAPI ship) {
    }
    
    
    @Override
    public void apply(MutableShipStatsAPI stats, String id, State state, float effectLevel) {
        ShipAPI ship = null;
        if (stats.getEntity() instanceof ShipAPI) {
            ship = (ShipAPI) stats.getEntity();
        } else {
            return;
        }
 
        if (state == State.IN) {
            if (fireDir == null) {
                float dir = ship.getFacing();
                if (ship.getMouseTarget() != null) {
                    dir = Misc.getAngleInDegrees(ship.getLocation(), ship.getMouseTarget());
                }
                if (ship.getShipAI() != null && ship.getAIFlags().hasFlag(AIFlags.SYSTEM_TARGET_COORDS)){
                    dir = Misc.getAngleInDegrees(ship.getLocation(), 
                            (Vector2f) ship.getAIFlags().getCustom(AIFlags.SYSTEM_TARGET_COORDS));
                }
                fireDir = Misc.getUnitVectorAtDegreeAngle(dir);
            }
        }
 
        
        if (state == State.ACTIVE && fireDir != null) {
            float amount = Global.getCombatEngine().getElapsedInLastFrame();
            elapsedActive += amount;
            while (elapsedActive >= REFIRE_DELAY) {
                elapsedActive -= REFIRE_DELAY;
                fireShroudedEjecta(ship, fireDir);
            }
        }
        
        if (state == State.OUT && fireDir != null) {
            float amount = Global.getCombatEngine().getElapsedInLastFrame();
            ship.getVelocity().x -= fireDir.x * BACK_OFF_ACCEL * amount;            
            ship.getVelocity().y -= fireDir.y * BACK_OFF_ACCEL * amount;            
        }
        
        if (state == State.IDLE || state == State.COOLDOWN) {
            fireDir = null;
            elapsedActive = REFIRE_DELAY;
        }
        
    }
    
    public static void fireShroudedEjecta(ShipAPI ship, Vector2f fireDir) {
        float dir = Misc.getAngleInDegrees(fireDir);
        CombatEngineAPI engine = Global.getCombatEngine();
        CombatFleetManagerAPI manager = engine.getFleetManager(ship.getOriginalOwner());
        manager.setSuppressDeploymentMessages(true);
        
        // wing has size 1, so no other members besides the "leader"
        // point is to spawn a ship but without it showing up in the deployment dialog etc
        ShipAPI ejecta = manager.spawnShipOrWing(EJECTA_WING, 
                                ship.getLocation(), dir, 0f, null);
        manager.setSuppressDeploymentMessages(false);
        
        Vector2f takeoffVel = Misc.getUnitVectorAtDegreeAngle(
                                dir + LAUNCH_ARC/2f - (float) Math.random() * LAUNCH_ARC);
        float velMult = 1f;
        velMult = 0.5f + (float) Math.random() * 1f;
        takeoffVel.scale(ejecta.getMaxSpeed() * velMult);
        
        Vector2f.add(ejecta.getVelocity(), takeoffVel, ejecta.getVelocity());
        
        DwellerShroud shroud = DwellerShroud.getShroudFor(ejecta);
        if (shroud != null) {
            shroud.custom1 = ship;
        }
        
        DwellerShroud sourceShroud = DwellerShroud.getShroudFor(ship);
        if (sourceShroud != null) {
            Vector2f offset = Vector2f.sub(ejecta.getLocation(), sourceShroud.getAttachedTo().getLocation(), new Vector2f());
            Global.getCombatEngine().addPlugin(
                    new DisturbShroudPlugin(1f, fireDir, ejecta, offset, sourceShroud, 
                            (int) (sourceShroud.getNumMembersToMaintain() * 0.1f)));
            
        }
        
        Global.getSoundPlayer().playSound("system_tenebrous_expulsion_fire", 1f, 1f, ejecta.getLocation(), ejecta.getVelocity());
    }
    
    
    public StatusData getStatusData(int index, State state, float effectLevel) {
        return null;
    }
    
}