Surge crucible effects

core/src/mindustry/world/draw/DrawCircles.java

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+package mindustry.world.draw;
+
+import arc.graphics.*;
+import arc.graphics.g2d.*;
+import arc.math.*;
+import arc.util.*;
+import mindustry.entities.units.*;
+import mindustry.gen.*;
+import mindustry.world.*;
+
+public class DrawCircles extends DrawBlock{
+    public Color color = Color.valueOf("7457ce");
+
+    public int amount = 5, sides = 15;
+    public float strokeMin = 0.2f, strokeMax = 2f, timeScl = 160f;
+    public float radius = 12f;
+    public Interp strokeInterp = Interp.pow3In;
+
+    public DrawCircles(Color color){
+        this.color = color;
+    }
+
+    public DrawCircles(){
+    }
+
+    @Override
+    public void drawPlan(Block block, BuildPlan plan, Eachable<BuildPlan> list){}
+
+    @Override
+    public void drawBase(Building build){
+        if(build.warmup() <= 0.001f) return;
+
+        Draw.color(color, build.warmup() * color.a);
+
+        for(int i = 0; i < amount; i++){
+            float life = ((Time.time / timeScl + i/(float)amount) % 1f);
+
+            Lines.stroke(build.warmup() * strokeInterp.apply(strokeMax, strokeMin, life));
+            Lines.poly(build.x, build.y, sides, life * radius);
+        }
+
+        Draw.color();
+    }
+}

core/src/mindustry/world/draw/DrawHeatRegion.java

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+package mindustry.world.draw;
+
+import arc.*;
+import arc.graphics.*;
+import arc.graphics.g2d.*;
+import arc.math.*;
+import mindustry.gen.*;
+import mindustry.graphics.*;
+import mindustry.world.*;
+import mindustry.world.blocks.production.HeatCrafter.*;
+
+/** Not standalone. */
+public class DrawHeatRegion extends DrawBlock{
+    public Color heatColor = new Color(1f, 0.22f, 0.22f, 0.8f);
+    public float heatPulse = 0.3f, heatPulseScl = 10f;
+
+    public TextureRegion heat;
+    public String suffix = "-glow";
+
+    public DrawHeatRegion(String suffix){
+        this.suffix = suffix;
+    }
+
+    public DrawHeatRegion(){
+    }
+
+    @Override
+    public void drawBase(Building build){
+
+        Draw.z(Layer.blockAdditive);
+        if(build instanceof HeatCrafterBuild hc && hc.heat > 0){
+            Draw.blend(Blending.additive);
+            Draw.color(heatColor, Mathf.clamp(hc.heat / hc.heatRequirement()) * (heatColor.a * (1f - heatPulse + Mathf.absin(heatPulseScl, heatPulse))));
+            Draw.rect(heat, build.x, build.y);
+            Draw.blend();
+            Draw.color();
+        }
+        Draw.z(Layer.block);
+
+    }
+
+    @Override
+    public void load(Block block){
+        heat = Core.atlas.find(block.name + suffix);
+    }
+}