From 2a6fcb7983ae19a26e86857d9b637c7a89e66764 Mon Sep 17 00:00:00 2001
From: MEEPofFaith <54301439+MEEPofFaith@users.noreply.github.com>
Date: Mon, 9 Jan 2023 19:08:40 -0800
Subject: [PATCH] Region part growing (#7861)

E x p a n d
---
 core/src/mindustry/entities/part/DrawPart.java |  9 +++++++--
 .../mindustry/entities/part/RegionPart.java    | 18 ++++++++++++++----
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/core/src/mindustry/entities/part/DrawPart.java b/core/src/mindustry/entities/part/DrawPart.java
index 7d85db582d..245d1c8064 100644
--- a/core/src/mindustry/entities/part/DrawPart.java
+++ b/core/src/mindustry/entities/part/DrawPart.java
@@ -45,14 +45,19 @@ public abstract class DrawPart{
 
     public static class PartMove{
         public PartProgress progress = PartProgress.warmup;
-        public float x, y, rot;
+        public float x, y, gx, gy, rot;
 
-        public PartMove(PartProgress progress, float x, float y, float rot){
+        public PartMove(PartProgress progress, float x, float y, float gx, float gy, float rot){
             this.progress = progress;
             this.x = x;
             this.y = y;
+            this.gx = gx;
+            this.gy = gy;
             this.rot = rot;
         }
+        public PartMove(PartProgress progress, float x, float y, float rot){
+            this(progress, x, y, 0, 0, rot);
+        }
 
         public PartMove(){
         }
diff --git a/core/src/mindustry/entities/part/RegionPart.java b/core/src/mindustry/entities/part/RegionPart.java
index e2186f5e16..341dd6f3fc 100644
--- a/core/src/mindustry/entities/part/RegionPart.java
+++ b/core/src/mindustry/entities/part/RegionPart.java
@@ -29,13 +29,15 @@ public class RegionPart extends DrawPart{
     public boolean heatLight = false;
     /** Progress function for determining position/rotation. */
     public PartProgress progress = PartProgress.warmup;
+    /** Progress function for scaling. */
+    public PartProgress growProgress = PartProgress.warmup;
     /** Progress function for heat alpha. */
     public PartProgress heatProgress = PartProgress.heat;
     public Blending blending = Blending.normal;
     public float layer = -1, layerOffset = 0f, heatLayerOffset = 1f, turretHeatLayer = Layer.turretHeat;
     public float outlineLayerOffset = -0.001f;
-    public float x, y, rotation;
-    public float moveX, moveY, moveRot;
+    public float x, y, xScl = 1f, yScl = 1f, rotation;
+    public float moveX, moveY, growX, growY, moveRot;
     public float heatLightOpacity = 0.3f;
     public @Nullable Color color, colorTo, mixColor, mixColorTo;
     public Color heatColor = Pal.turretHeat.cpy();
@@ -65,8 +67,9 @@ public class RegionPart extends DrawPart{
         Draw.z(Draw.z() + layerOffset);
 
         float prevZ = Draw.z();
-        float prog = progress.getClamp(params);
-        float mx = moveX * prog, my = moveY * prog, mr = moveRot * prog + rotation;
+        float prog = progress.getClamp(params), sclProg = growProgress.getClamp(params);
+        float mx = moveX * prog, my = moveY * prog, mr = moveRot * prog + rotation,
+            gx = growX * sclProg, gy = growY * sclProg;
 
         if(moves.size > 0){
             for(int i = 0; i < moves.size; i++){
@@ -75,10 +78,15 @@ public class RegionPart extends DrawPart{
                 mx += move.x * p;
                 my += move.y * p;
                 mr += move.rot * p;
+                gx += move.gx;
+                gy += move.gy;
             }
         }
 
         int len = mirror && params.sideOverride == -1 ? 2 : 1;
+        float preXscl = Draw.xscl, preYscl = Draw.yscl;
+        Draw.xscl *= xScl + gx;
+        Draw.yscl *= yScl + gy;
 
         for(int s = 0; s < len; s++){
             //use specific side if necessary
@@ -153,6 +161,8 @@ public class RegionPart extends DrawPart{
                 }
             }
         }
+
+        Draw.scl(preXscl, preYscl);
     }
 
     @Override