From cf5e8c6463410293bc82dfda0a8779d2f0bee7d4 Mon Sep 17 00:00:00 2001
From: Anuken <arnukren@gmail.com>
Date: Tue, 7 Jan 2020 20:09:21 -0500
Subject: [PATCH] Point planet renderer

---
 .../mindustry/graphics/PlanetRenderer.java    | 61 +++++++++++++------
 gradle.properties                             |  2 +-
 2 files changed, 45 insertions(+), 18 deletions(-)

diff --git a/core/src/mindustry/graphics/PlanetRenderer.java b/core/src/mindustry/graphics/PlanetRenderer.java
index 3d701b4f8f..ad8c6b2191 100644
--- a/core/src/mindustry/graphics/PlanetRenderer.java
+++ b/core/src/mindustry/graphics/PlanetRenderer.java
@@ -4,35 +4,62 @@ import arc.*;
 import arc.graphics.*;
 import arc.graphics.g2d.*;
 import arc.graphics.g3d.*;
+import arc.math.*;
 import arc.util.*;
 
 public class PlanetRenderer{
-    private ImmediateRenderer3D rend = new ImmediateRenderer3D(false, true, 0);
+    private ImmediateRenderer3D rend = new ImmediateRenderer3D(true, true, 0);
     private Camera3D cam = new Camera3D();
 
     public void draw(){
         Draw.flush();
-        Gl.clear(Gl.depthBufferBit);
+        Gl.clearColor(0, 0, 0, 1);
+        //Gl.clear(Gl.depthBufferBit | Gl.colorBufferBit);
+        Gl.lineWidth(40f);
 
-        Tmp.v1.trns(Time.time() *  2f, 30f);
-        cam.position.set(Tmp.v1.x, Tmp.v1.y, 10);
+        Tmp.v1.trns(Time.time() / 4f, 20f);
+        cam.position.set(Tmp.v1.x, 0f, Tmp.v1.y);
         cam.resize(Core.graphics.getWidth(), Core.graphics.getHeight());
+        cam.update();
         cam.lookAt(0, 0, 0);
         cam.update();
 
-        rend.begin(cam.combined(), Gl.triangleStrip);
-        rend.color(Color.red);
-        rend.vertex(0f, 0f, 0f);
-        rend.color(Color.green);
-        rend.vertex(0f, 5f, 0f);
-        rend.color(Color.blue);
-        rend.vertex(0f, 5f, 5f);
-        rend.color(Color.red);
-        rend.vertex(0f, 0f, 0f);
-        rend.color(Color.green);
-        rend.vertex(0f, 0f, 5f);
-        rend.color(Color.blue);
-        rend.vertex(0f, 5f, 5f);
+        rend.begin(cam.combined(), Gl.points);
+        build(15, 15, 15, 60, 60);
         rend.end();
     }
+
+    void build(float width, float height, float depth, int divisionsU, int divisionsV) {
+        float angleUFrom = 0, angleUTo = 360f, angleVFrom = 0, angleVTo = 180f;
+        final float hw = width * 0.5f;
+        final float hh = height * 0.5f;
+        final float hd = depth * 0.5f;
+        final float auo = Mathf.degRad * angleUFrom;
+        final float stepU = (Mathf.degRad * (angleUTo - angleUFrom)) / divisionsU;
+        final float avo = Mathf.degRad * angleVFrom;
+        final float stepV = (Mathf.degRad * (angleVTo - angleVFrom)) / divisionsV;
+        final float us = 1f / divisionsU;
+        final float vs = 1f / divisionsV;
+        float u, v, angleU, angleV;
+
+        final int s = divisionsU + 3;
+        int tempOffset = 0;
+
+        for (int iv = 0; iv <= divisionsV; iv++) {
+            angleV = avo + stepV * iv;
+            v = vs * iv;
+            final float t = Mathf.sin(angleV);
+            final float h = Mathf.cos(angleV) * hh;
+            for (int iu = 0; iu <= divisionsU; iu++) {
+                angleU = auo + stepU * iu;
+                u = 1f - us * iu;
+                Tmp.v31.set(Mathf.cos(angleU) * hw * t, h, Mathf.sin(angleU) * hd * t);
+
+                rend.color(Color.white);
+                rend.normal(Tmp.v32.set(Tmp.v31).nor());
+                rend.texCoord(u, v);
+                rend.vertex(Tmp.v31);
+            }
+        }
+    }
 }
diff --git a/gradle.properties b/gradle.properties
index 052fc80569..ecc45979db 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=9f70d5a39a910bd855430d74e41d0b8753b47442
+archash=dbdce4d5bfcf9d53dd21480c7d14e90a637eaa8e