From ca60309fdee13b9b683b1b0428d61a078dfaea60 Mon Sep 17 00:00:00 2001
From: Anuken <arnukren@gmail.com>
Date: Sat, 19 Jun 2021 11:17:52 -0400
Subject: [PATCH] Asteroid generator progress

---
 core/assets/icons/icons.properties            |  1 +
 .../maps/planet/AsteroidGenerator.java        | 64 +++++++++++++++++--
 2 files changed, 61 insertions(+), 4 deletions(-)

diff --git a/core/assets/icons/icons.properties b/core/assets/icons/icons.properties
index 720a88689c..ac2d241dfd 100755
--- a/core/assets/icons/icons.properties
+++ b/core/assets/icons/icons.properties
@@ -382,3 +382,4 @@
 63351=redice|block-redice-ui
 63350=red-ice|block-red-ice-ui
 63349=red-ice-wall|block-red-ice-wall-ui
+63348=ferrous|block-ferrous-ui
diff --git a/core/src/mindustry/maps/planet/AsteroidGenerator.java b/core/src/mindustry/maps/planet/AsteroidGenerator.java
index d2f7605253..d2ec593f4d 100644
--- a/core/src/mindustry/maps/planet/AsteroidGenerator.java
+++ b/core/src/mindustry/maps/planet/AsteroidGenerator.java
@@ -11,21 +11,77 @@ import mindustry.world.meta.*;
 import static mindustry.Vars.*;
 
 public class AsteroidGenerator extends BlankPlanetGenerator{
+    public static int min = 15, max = 25, octaves = 2, foct = 3;
+
+    public static float radMin = 5f, radMax = 50f, persistence = 0.4f, scale = 30f, mag = 0.46f, thresh = 1f;
+
+    public static float fmag = 0.6f, fscl = 50f, fper = 0.6f;
+
+    Rand rand;
+    int seed;
+
+    void asteroid(int ax, int ay, int radius){
+
+        for(int x = ax - radius; x <= ax + radius; x++){
+            for(int y = ay - radius; y <= ay + radius; y++){
+                if(tiles.in(x, y) &&  Mathf.dst(x, y, ax, ay) / (radius) + Simplex.noise2d(seed, octaves, persistence, 1f / scale, x, y) * mag < thresh){
+                    tiles.getn(x, y).setFloor(Blocks.stone.asFloor());
+                }
+            }
+        }
+    }
 
     @Override
     public void generate(){
-        int seed = state.rules.sector.planet.id;
+        seed = state.rules.sector.planet.id;
         int sx = width/2, sy = height/2;
-        Rand rand = new Rand(seed);
+        rand = new Rand(seed);
 
         pass((x, y) -> {
             floor = Blocks.space;
+        });
 
-            if(Simplex.noise2d(seed, 5, 0.5f, 1f / 120f, x, y) - Mathf.dst(x, y, sx, sy) / (width/2f) > 0f){
-                floor = rand.chance(0.02) ? Blocks.craters : Blocks.stone;
+        asteroid(sx, sy, rand.random(30, 50));
+
+        int amount = rand.random(min, max);
+        for(int i = 0; i < amount; i++){
+            float radius = rand.random(radMin, radMax), ax = rand.random(radius, width - radius), ay = rand.random(radius, height - radius);
+
+            asteroid((int)ax, (int)ay, (int)radius);
+        }
+
+        //tiny asteroids.
+        int smalls = rand.random(min, max * 2);
+        for(int i = 0; i < smalls; i++){
+            float radius = rand.random(1, 8), ax = rand.random(radius, width - radius), ay = rand.random(radius, height - radius);
+
+            asteroid((int)ax, (int)ay, (int)radius);
+        }
+
+        pass((x, y) -> {
+            if(floor != Blocks.space){
+                if(Ridged.noise2d(seed, x, y, foct, fper, 1f / fscl) > fmag){
+                    floor = Blocks.graphiticStone;
+                }
             }
         });
 
+        pass((x, y) -> {
+            if(floor == Blocks.space || Ridged.noise2d(seed + 1, x, y, 3, 0.5f, 1f / 70f) > 0.5f) return;
+
+            int radius = 5;
+            for(int dx = x - radius; dx <= x + radius; dx++){
+                for(int dy = y - radius; dy <= y + radius; dy++){
+                    if(Mathf.within(dx, dy, x, y, radius + 0.0001f) && tiles.in(dx, dy) && tiles.getn(dx, dy).floor() == Blocks.space){
+                        return;
+                    }
+                }
+            }
+
+            block = floor.asFloor().wall;
+
+        });
+
         Schematics.placeLaunchLoadout(sx, sy);
 
         state.rules.environment = Env.space;