Reflective planet water

core/assets/shaders/planet.vert

@@ -5,7 +5,7 @@ attribute vec4 a_color;
 uniform mat4 u_proj;
 uniform mat4 u_trans;
 uniform vec3 u_lightdir;
-//uniform vec3 u_camdir;
+uniform vec3 u_camdir;
 uniform vec3 u_ambientColor;
 
 varying vec4 v_col;
@@ -14,7 +14,12 @@ const vec3 diffuse = vec3(0);
 
 void main(){
 	vec3 norc = u_ambientColor * (diffuse + vec3(clamp((dot(a_normal, u_lightdir) + 1.0) / 2.0, 0.0, 1.0)));
+    float falloff = 4.0;
+    float shinelen = 0.2;
+    float shinedot = max((-dot(u_camdir, a_normal) - (1.0 - shinelen)) / shinelen, 0.0);
+    float shinyness = (1.0 - a_color.a) * pow(shinedot, falloff);
+    vec4 baseCol = vec4(a_color.rgb, 1.0);
 
-	v_col = a_color * vec4(norc, 1.0);
+	v_col = lerp(baseCol * vec4(norc, 1.0), vec4(1.0), shinyness * norc.r);
     gl_Position = u_proj * u_trans * a_position;
 }

core/src/mindustry/content/Blocks.java

@@ -133,6 +133,7 @@ public class Blocks implements ContentList{
             statusDuration = 120f;
             drownTime = 140f;
             cacheLayer = CacheLayer.water;
+            albedo = 0.5f;
         }};
 
         water = new Floor("water"){{
@@ -143,6 +144,7 @@ public class Blocks implements ContentList{
             liquidDrop = Liquids.water;
             isLiquid = true;
             cacheLayer = CacheLayer.water;
+            albedo = 0.5f;
         }};
 
         taintedWater = new Floor("tainted-water"){{
@@ -154,6 +156,7 @@ public class Blocks implements ContentList{
             liquidDrop = Liquids.water;
             isLiquid = true;
             cacheLayer = CacheLayer.water;
+            albedo = 0.5f;
         }};
 
         darksandTaintedWater = new Floor("darksand-tainted-water"){{
@@ -164,6 +167,7 @@ public class Blocks implements ContentList{
             liquidDrop = Liquids.water;
             isLiquid = true;
             cacheLayer = CacheLayer.water;
+            albedo = 0.5f;
         }};
 
         sandWater = new Floor("sand-water"){{
@@ -174,6 +178,7 @@ public class Blocks implements ContentList{
             liquidDrop = Liquids.water;
             isLiquid = true;
             cacheLayer = CacheLayer.water;
+            albedo = 0.5f;
         }};
 
         darksandWater = new Floor("darksand-water"){{
@@ -184,6 +189,7 @@ public class Blocks implements ContentList{
             liquidDrop = Liquids.water;
             isLiquid = true;
             cacheLayer = CacheLayer.water;
+            albedo = 0.5f;
         }};
 
         tar = new Floor("tar"){{

core/src/mindustry/graphics/Shaders.java

@@ -80,6 +80,7 @@ public class Shaders{
     public static class PlanetShader extends LoadShader{
         public Vec3 lightDir = new Vec3(1, 1, 1).nor();
         public Color ambientColor = Color.white.cpy();
+        public Vec3 camDir = new Vec3();
 
         public PlanetShader(){
             super("planet", "planet");
@@ -89,6 +90,7 @@ public class Shaders{
         public void apply(){
             setUniformf("u_lightdir", lightDir);
             setUniformf("u_ambientColor", ambientColor.r, ambientColor.g, ambientColor.b);
+            setUniformf("u_camdir", camDir);
         }
     }
 

core/src/mindustry/maps/planet/TODOPlanetGenerator.java

@@ -60,8 +60,7 @@ public class TODOPlanetGenerator extends PlanetGenerator{
         Block block = getBlock(position);
         //replace salt with sand color
         if(block == Blocks.salt) return Blocks.sand.mapColor;
-        //return block.asFloor().isLiquid ? Tmp.c1.set(block.mapColor).a(0.5f) : block.mapColor;
-        return block.mapColor;
+        return Tmp.c1.set(block.mapColor).a(1f - block.albedo);
     }
 
     @Override

core/src/mindustry/ui/dialogs/PlanetDialog.java

@@ -177,6 +177,9 @@ public class PlanetDialog extends FloatingDialog{
         cam.lookAt(planet.position);
         cam.update();
 
+        //TODO hacky
+        Shaders.planet.camDir.set(cam.direction).rotate(Vec3.Y, planet.getRotation());
+
         projector.proj(cam.combined());
         batch.proj(cam.combined());
 

core/src/mindustry/world/Block.java

@@ -129,6 +129,8 @@ public class Block extends UnlockableContent{
     public boolean hasShadow = true;
     /** Sounds made when this block breaks.*/
     public Sound breakSound = Sounds.boom;
+    /** How reflective this block is. */
+    public float albedo = 0f;
 
     /** The sound that this block makes while active. One sound loop. Do not overuse.*/
     public Sound activeSound = Sounds.none;

gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=50df607c88d697dc42b29b56947cda318f90d71b
+archash=da2913187aa724da769c6a80bc709eebb5bc0888