Use gradle. Use standard Java project layout. Changed package name.

src/main/java/dev/esophose/playerparticles/styles/ParticleStyleQuadhelix.java

@@ -0,0 +1,76 @@
+package dev.esophose.playerparticles.styles;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import dev.esophose.playerparticles.styles.api.PParticle;
+import org.bukkit.Location;
+
+import dev.esophose.playerparticles.particles.ParticlePair;
+import dev.esophose.playerparticles.styles.api.ParticleStyle;
+
+public class ParticleStyleQuadhelix implements ParticleStyle {
+
+    private static double[] cos, sin;
+    private static final int orbs = 4;
+    private static int maxStepX = 80;
+    private static int maxStepY = 60;
+    private int stepX = 0;
+    private int stepY = 0;
+    private boolean reverse = false;
+    
+    static {
+        cos = new double[maxStepX];
+        sin = new double[maxStepX];
+        
+        int i = 0;
+        for (double n = 0; n < maxStepX; n++) {
+            cos[i] = -Math.cos(n / maxStepX * Math.PI * 2);
+            sin[i] = -Math.sin(n / maxStepX * Math.PI * 2);
+            i++;
+        }
+    }
+
+    public List<PParticle> getParticles(ParticlePair particle, Location location) {
+        List<PParticle> particles = new ArrayList<PParticle>();
+        for (int i = 0; i < orbs; i++) {
+            int step = (stepX + (maxStepX / orbs) * i) % maxStepX;
+            double dx = cos[step] * ((60 - Math.abs(stepY)) / (double)maxStepY);
+            double dy = (stepY / (double)maxStepY) * 1.5;
+            double dz = sin[step] * ((60 - Math.abs(stepY)) / (double)maxStepY);
+            particles.add(new PParticle(location.clone().add(dx, dy, dz)));
+        }
+        return particles;
+    }
+
+    public void updateTimers() {
+        stepX++;
+        if (stepX > maxStepX) {
+            stepX = 0;
+        }
+        if (reverse) {
+            stepY++;
+            if (stepY > maxStepY) reverse = false;
+        } else {
+            stepY--;
+            if (stepY < -maxStepY) reverse = true;
+        }
+    }
+
+    public String getName() {
+        return "quadhelix";
+    }
+
+    public boolean canBeFixed() {
+        return true;
+    }
+    
+    public boolean canToggleWithMovement() {
+        return true;
+    }
+    
+    public double getFixedEffectOffset() {
+        return 0;
+    }
+
+}