chemical combustion chamber

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

@@ -28,6 +28,7 @@ public class DrawLiquidRegion extends DrawBlock{
 
     @Override
     public void drawBase(Building build){
+        if(!build.block.hasLiquids) return;
 
         Liquid drawn = drawLiquid != null ? drawLiquid : build.liquids.current();
         Drawf.liquid(liquid, build.x, build.y,

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

@@ -0,0 +1,36 @@
+package mindustry.world.draw;
+
+import arc.*;
+import arc.graphics.g2d.*;
+import arc.math.*;
+import arc.math.geom.*;
+import arc.util.*;
+import mindustry.entities.units.*;
+import mindustry.gen.*;
+import mindustry.world.*;
+
+public class DrawPistons extends DrawBlock{
+    public float sinMag = 4f, sinScl = 6f, sinOffset = 60f, sideOffset = 0f, lenOffset = -1f;
+    public TextureRegion region1, region2;
+
+    @Override
+    public void drawPlan(Block block, BuildPlan plan, Eachable<BuildPlan> list){
+
+    }
+
+    @Override
+    public void drawBase(Building build){
+        for(int i = 0; i < 4; i++){
+            float len = Mathf.absin(build.totalProgress() + sinOffset + sideOffset * sinScl * i, sinScl, sinMag) + lenOffset;
+            Draw.rect(i >= 2 ? region2 : region1, build.x + Geometry.d4[i].x * len, build.y + Geometry.d4[i].y * len, i * 90);
+        }
+    }
+
+    @Override
+    public void load(Block block){
+        super.load(block);
+
+        region1 = Core.atlas.find(block.name + "-piston0");
+        region2 = Core.atlas.find(block.name + "-piston1");
+    }
+}

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

@@ -0,0 +1,43 @@
+package mindustry.world.draw;
+
+import arc.*;
+import arc.graphics.g2d.*;
+import arc.util.*;
+import mindustry.entities.units.*;
+import mindustry.gen.*;
+import mindustry.world.*;
+
+public class DrawTurbines extends DrawBlock{
+    public TextureRegion[] turbines = new TextureRegion[2];
+    public TextureRegion cap;
+    public float turbineSpeed = 2f;
+
+    @Override
+    public void drawPlan(Block block, BuildPlan plan, Eachable<BuildPlan> list){
+
+    }
+
+    @Override
+    public void drawBase(Building build){
+        if(!turbines[0].found()) return;
+
+        float totalTime = build.totalProgress();
+        Draw.rect(turbines[0], build.x, build.y, totalTime * turbineSpeed);
+        Draw.rect(turbines[1], build.x, build.y, -totalTime * turbineSpeed);
+
+        if(cap.found()){
+            Draw.rect(cap, build.x, build.y);
+        }
+    }
+
+    @Override
+    public void load(Block block){
+        super.load(block);
+
+        cap = Core.atlas.find(block.name + "-cap");
+
+        for(int i = 0; i < 2; i++){
+            turbines[i] = Core.atlas.find(block.name + "-turbine" + i);
+        }
+    }
+}

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

@@ -0,0 +1,36 @@
+package mindustry.world.draw;
+
+import arc.*;
+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 DrawWarmupRegion extends DrawBlock{
+    public float sinMag = 0.6f, sinScl = 8f;
+    public Color color = Color.valueOf("ff9b59");
+    public TextureRegion region;
+
+    @Override
+    public void drawPlan(Block block, BuildPlan plan, Eachable<BuildPlan> list){
+
+    }
+
+    @Override
+    public void drawBase(Building build){
+        Draw.color(color);
+        Draw.alpha(build.warmup() * (1f - sinMag) + Mathf.absin(Time.time, sinScl, sinMag) * build.warmup());
+        Draw.rect(region, build.x, build.y);
+        Draw.reset();
+    }
+
+    @Override
+    public void load(Block block){
+        super.load(block);
+
+        region = Core.atlas.find(block.name + "-top");
+    }
+}