Multi-legged unit implementations

core/src/mindustry/entities/bullet/BulletType.java

@@ -162,7 +162,7 @@ public abstract class BulletType extends Content{
     }
 
     public void despawned(Bullet b){
-        despawnEffect.at(b.x, b.y, b.rotation());
+        despawnEffect.at(b.x, b.y, b.rotation(), hitColor);
         hitSound.at(b);
 
         if(fragBullet != null || splashDamageRadius > 0 || lightning > 0){
@@ -237,16 +237,16 @@ public abstract class BulletType extends Content{
 
     public Bullet create(@Nullable Entityc owner, Team team, float x, float y, float angle, float damage, float velocityScl, float lifetimeScl, Object data){
         Bullet bullet = Bullet.create();
-        bullet.type(this);
-        bullet.owner(owner);
-        bullet.team(team);
+        bullet.type = this;
+        bullet.owner = owner;
+        bullet.team = team;
         bullet.vel.trns(angle, speed * velocityScl);
         bullet.set(x - bullet.vel.x * Time.delta(), y - bullet.vel.y * Time.delta());
-        bullet.lifetime(lifetime * lifetimeScl);
-        bullet.data(data);
-        bullet.drag(drag);
-        bullet.hitSize(hitSize);
-        bullet.damage(damage < 0 ? this.damage : damage);
+        bullet.lifetime = lifetime * lifetimeScl;
+        bullet.data = data;
+        bullet.drag = drag;
+        bullet.hitSize = hitSize;
+        bullet.damage = damage < 0 ? this.damage : damage;
         bullet.add();
 
         if(keepVelocity && owner instanceof Hitboxc) bullet.vel.add(((Hitboxc)owner).deltaX(), ((Hitboxc)owner).deltaY());

core/src/mindustry/entities/bullet/SapBulletType.java

@@ -0,0 +1,80 @@
+package mindustry.entities.bullet;
+
+import arc.*;
+import arc.graphics.*;
+import arc.graphics.g2d.*;
+import arc.math.geom.*;
+import arc.util.*;
+import mindustry.content.*;
+import mindustry.entities.*;
+import mindustry.gen.*;
+import mindustry.graphics.*;
+
+public class SapBulletType extends BulletType{
+    public float length = 100f;
+    public float sapStrength = 0.5f;
+    public Color color = Color.white.cpy();
+    public float width = 0.4f;
+
+    public SapBulletType(){
+        speed = 0.0001f;
+        despawnEffect = Fx.none;
+        pierce = true;
+        hitSize = 0f;
+        hittable = false;
+        hitEffect = Fx.hitLiquid;
+    }
+
+    @Override
+    public void draw(Bullet b){
+        if(b.data instanceof Position){
+            Position data = (Position)b.data;
+            Tmp.v1.set(data).lerp(b, b.fin());
+
+            Draw.color(color);
+            Drawf.laser(b.team, Core.atlas.find("laser"), Core.atlas.find("laser-end"),
+                b.x, b.y, Tmp.v1.x, Tmp.v1.y, width * b.fout());
+
+            Draw.reset();
+
+            Drawf.light(b.team, b.x, b.y, b.x + Tmp.v1.x, b.y + Tmp.v1.y, 15f * b.fout(), lightColor, 0.6f);
+        }
+    }
+
+    @Override
+    public float range(){
+        return length;
+    }
+
+    @Override
+    public void init(Bullet b){
+        super.init(b);
+
+        Healthc target = Damage.linecast(b, b.x, b.y, b.rotation(), length);
+        b.data = target;
+
+        if(target != null){
+            float result = Math.min(target.health(), damage);
+
+            if(b.owner instanceof Healthc){
+                ((Healthc)b.owner).heal(result * sapStrength);
+            }
+        }
+
+        if(target instanceof Hitboxc){
+            Hitboxc hit = (Hitboxc)target;
+
+            hit.collision(b, hit.x(), hit.y());
+            b.collision(hit, hit.x(), hit.y());
+        }else if(target instanceof Building){
+            Building tile = (Building)target;
+
+            if(tile.collide(b)){
+                tile.collision(b);
+                hit(b, tile.x, tile.y);
+            }
+        }else{
+            b.data = new Vec2().trns(b.rotation(), length).add(b.x, b.y);
+        }
+    }
+}