Animated oil blocks as well

core/assets/shaders/lava.fragment

@@ -0,0 +1,88 @@
+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
+#define s2 vec4(255.0, 165.0, 0.0, 255.0) / 255.0
+#define s1 vec4(255.0, 121.0, 62.0, 255.0) / 255.0
+
+uniform sampler2D u_texture;
+
+uniform vec2 camerapos;
+uniform vec2 screensize;
+uniform float time;
+
+varying vec4 v_color;
+varying vec2 v_texCoord;
+
+float round(float num, float f){
+    return float(int(num / f)) * f;
+}
+
+vec3 permute(vec3 x) { return mod(((x*34.0)+1.0)*x, 289.0); }
+
+float snoise(vec2 v){
+    const vec4 C = vec4(0.211324865405187, 0.366025403784439,
+           -0.577350269189626, 0.024390243902439);
+    vec2 i  = floor(v + dot(v, C.yy) );
+    vec2 x0 = v -   i + dot(i, C.xx);
+    vec2 i1;
+    i1 = (x0.x > x0.y) ? vec2(1.0, 0.0) : vec2(0.0, 1.0);
+    vec4 x12 = x0.xyxy + C.xxzz;
+    x12.xy -= i1;
+    i = mod(i, 289.0);
+    vec3 p = permute( permute( i.y + vec3(0.0, i1.y, 1.0 ))
+    + i.x + vec3(0.0, i1.x, 1.0 ));
+    vec3 m = max(0.5 - vec3(dot(x0,x0), dot(x12.xy,x12.xy),
+    dot(x12.zw,x12.zw)), 0.0);
+    m = m*m ;
+    m = m*m ;
+    vec3 x = 2.0 * fract(p * C.www) - 1.0;
+    vec3 h = abs(x) - 0.5;
+    vec3 ox = floor(x + 0.5);
+    vec3 a0 = x - ox;
+    m *= 1.79284291400159 - 0.85373472095314 * ( a0*a0 + h*h );
+    vec3 g;
+    g.x  = a0.x  * x0.x  + h.x  * x0.y;
+    g.yz = a0.yz * x12.xz + h.yz * x12.yw;
+    return 130.0 * dot(m, g);
+}
+
+void main() {
+
+	vec2 c = v_texCoord.xy;
+	vec4 color = texture2D(u_texture, c);
+
+	vec2 v = vec2(1.0/screensize.x, 1.0/screensize.y);
+	ivec2 icoords = ivec2(int(c.x / v.x + camerapos.x), int(c.y / v.y + camerapos.y));
+	vec2 coords = vec2(float(icoords.x), float(icoords.y));
+	
+	float stime = time / 5.0;
+	
+	float mscl = 30.0;
+	float mth = 5.0;
+	
+	//if there's something actually there
+	if(color.r > 0.01){
+	    vec4 old = color;
+	    color = texture2D(u_texture, c + vec2(sin(stime/3.0 + coords.y/0.75) * v.x, 0.0)) * vec4(0.9, 0.9, 1, 1.0);
+	    color.a = 1.0;
+	    
+	    if(color.r < 0.01){
+	        color = old;
+	    }
+	    
+	    float n1 = snoise(coords / 20.0 + vec2(time) / 250.0);
+	    float n2 = snoise((coords + vec2(632.0)) / 9.0 + vec2(0.0, -time) / 220.0);
+	    
+	    float r = (n1 + n2) / 2.0;
+	    
+	    if(r < -0.6){
+	        color = s2;
+	    }else if(r < -0.2 && r > -0.6){
+	        color = s1;
+	    }
+	}
+
+	gl_FragColor = color;
+}

core/assets/shaders/oil.fragment

@@ -0,0 +1,86 @@
+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
+#define s1 vec4(63.0, 63.0, 63.0, 255.0) / 255.0
+
+uniform sampler2D u_texture;
+
+uniform vec2 camerapos;
+uniform vec2 screensize;
+uniform float time;
+
+varying vec4 v_color;
+varying vec2 v_texCoord;
+
+float round(float num, float f){
+    return float(int(num / f)) * f;
+}
+
+vec3 permute(vec3 x) { return mod(((x*34.0)+1.0)*x, 289.0); }
+
+float snoise(vec2 v){
+    const vec4 C = vec4(0.211324865405187, 0.366025403784439,
+           -0.577350269189626, 0.024390243902439);
+    vec2 i  = floor(v + dot(v, C.yy) );
+    vec2 x0 = v -   i + dot(i, C.xx);
+    vec2 i1;
+    i1 = (x0.x > x0.y) ? vec2(1.0, 0.0) : vec2(0.0, 1.0);
+    vec4 x12 = x0.xyxy + C.xxzz;
+    x12.xy -= i1;
+    i = mod(i, 289.0);
+    vec3 p = permute( permute( i.y + vec3(0.0, i1.y, 1.0 ))
+    + i.x + vec3(0.0, i1.x, 1.0 ));
+    vec3 m = max(0.5 - vec3(dot(x0,x0), dot(x12.xy,x12.xy),
+    dot(x12.zw,x12.zw)), 0.0);
+    m = m*m ;
+    m = m*m ;
+    vec3 x = 2.0 * fract(p * C.www) - 1.0;
+    vec3 h = abs(x) - 0.5;
+    vec3 ox = floor(x + 0.5);
+    vec3 a0 = x - ox;
+    m *= 1.79284291400159 - 0.85373472095314 * ( a0*a0 + h*h );
+    vec3 g;
+    g.x  = a0.x  * x0.x  + h.x  * x0.y;
+    g.yz = a0.yz * x12.xz + h.yz * x12.yw;
+    return 130.0 * dot(m, g);
+}
+
+void main() {
+
+	vec2 c = v_texCoord.xy;
+	vec4 color = texture2D(u_texture, c);
+
+	vec2 v = vec2(1.0/screensize.x, 1.0/screensize.y);
+	ivec2 icoords = ivec2(int(c.x / v.x + camerapos.x), int(c.y / v.y + camerapos.y));
+	vec2 coords = vec2(float(icoords.x), float(icoords.y));
+	
+	float stime = time / 5.0;
+	
+	float mscl = 30.0;
+	float mth = 5.0;
+	
+	//if there's something actually there
+	if(color.r > 0.01){
+	    vec4 old = color;
+	    color = texture2D(u_texture, c + vec2(sin(stime/3.0 + coords.y/0.75) * v.x, 0.0)) * vec4(0.9, 0.9, 1, 1.0);
+	    color.a = 1.0;
+	    
+	    if(color.r < 0.01){
+	        color = old;
+	    }
+	    
+	    float n1 = snoise(coords / 20.0 + vec2(-time) / 340.0);
+	    float n2 = snoise((coords + vec2(632.0)) / 7.0 + vec2(0.0, time) / 310.0);
+	    
+	    float r = (n1 + n2) / 2.0;
+	    
+	    if(r < -0.3 && r > -0.6){
+	        color *= 1.3;
+	        color.a = 1.0;
+	    }
+	}
+
+	gl_FragColor = color;
+}

core/assets/version.properties

@@ -1,5 +1,5 @@
 #Autogenerated file. Do not modify.
-#Tue Mar 13 22:34:33 EDT 2018
+#Wed Mar 14 12:49:40 EDT 2018
 version=release
 androidBuildCode=491
 name=Mindustry

core/src/io/anuke/mindustry/graphics/DrawLayer.java

@@ -1,9 +1,11 @@
 package io.anuke.mindustry.graphics;
 
+import com.badlogic.gdx.graphics.Color;
 import io.anuke.ucore.core.Core;
 import io.anuke.ucore.core.Graphics;
 import io.anuke.ucore.graphics.CacheBatch;
 import io.anuke.ucore.graphics.Draw;
+import io.anuke.ucore.graphics.Shader;
 
 import static io.anuke.mindustry.Vars.renderer;
 
@@ -11,26 +13,34 @@ public enum DrawLayer {
     water{
         @Override
         public void begin(CacheBatch batch){
-            batch.setProjectionMatrix(Core.camera.combined);
-            Graphics.useBatch(batch.drawBatch());
-
-            Graphics.begin();
-            Graphics.surface(renderer.waterSurface);
+            beginShader(batch);
         }
 
         @Override
         public void end(CacheBatch batch){
-            Graphics.surface();
-            Graphics.end();
+            endShader(batch, Shaders.water);
+        }
+    },
+    lava{
+        @Override
+        public void begin(CacheBatch batch){
+            beginShader(batch);
+        }
 
-            Graphics.popBatch();
+        @Override
+        public void end(CacheBatch batch){
+            endShader(batch, Shaders.lava);
+        }
+    },
+    oil{
+        @Override
+        public void begin(CacheBatch batch){
+            beginShader(batch);
+        }
 
-            Graphics.shader(Shaders.water);
-            Graphics.begin();
-            Draw.rect(renderer.waterSurface.texture(), Core.camera.position.x, Core.camera.position.y,
-                    Core.camera.viewportWidth * Core.camera.zoom, -Core.camera.viewportHeight * Core.camera.zoom);
-            Graphics.end();
-            Graphics.shader();
+        @Override
+        public void end(CacheBatch batch){
+            endShader(batch, Shaders.oil);
         }
     },
     normal,
@@ -48,4 +58,27 @@ public enum DrawLayer {
 
         Graphics.popBatch();
     }
+
+    protected void beginShader(CacheBatch batch){
+        batch.setProjectionMatrix(Core.camera.combined);
+        Graphics.useBatch(batch.drawBatch());
+
+        Graphics.begin();
+        Graphics.surface(renderer.waterSurface);
+        Graphics.clear(Color.CLEAR);
+    }
+
+    public void endShader(CacheBatch batch, Shader shader){
+        Graphics.surface();
+        Graphics.end();
+
+        Graphics.popBatch();
+
+        Graphics.shader(shader);
+        Graphics.begin();
+        Draw.rect(renderer.waterSurface.texture(), Core.camera.position.x, Core.camera.position.y,
+                Core.camera.viewportWidth * Core.camera.zoom, -Core.camera.viewportHeight * Core.camera.zoom);
+        Graphics.end();
+        Graphics.shader();
+    }
 }

core/src/io/anuke/mindustry/graphics/Shaders.java

@@ -13,25 +13,12 @@ import io.anuke.ucore.scene.ui.layout.Unit;
 public class Shaders{
 	public static final Outline outline = new Outline();
 	public static final Shield shield = new Shield();
-	public static final Water water = new Water();
+	public static final SurfaceShader water = new SurfaceShader("water");
+	public static final SurfaceShader lava = new SurfaceShader("lava");
+	public static final SurfaceShader oil = new SurfaceShader("oil");
 
 	private static final Vector2 vec = new Vector2();
 
-	public static class Water extends Shader{
-
-		public Water(){
-			super("water", "default");
-		}
-
-		@Override
-		public void apply(){
-			shader.setUniformf("camerapos", Core.camera.position.x + Core.camera.zoom, Core.camera.position.y);
-			shader.setUniformf("screensize", Gdx.graphics.getWidth() / Core.cameraScale * Core.camera.zoom,
-					Gdx.graphics.getHeight() / Core.cameraScale * Core.camera.zoom);
-			shader.setUniformf("time", Timers.time());
-		}
-	}
-
 	public static class Outline extends Shader{
 		public Color color = new Color();
 		public float lighten = 0f;
@@ -46,7 +33,6 @@ public class Shaders{
 			shader.setUniformf("u_lighten", lighten);
 			shader.setUniformf("u_texsize", vec.set(region.getTexture().getWidth(), region.getTexture().getHeight()));
 		}
-		
 	}
 	
 	public static class Shield extends Shader{
@@ -74,6 +60,20 @@ public class Shaders{
 			shader.setUniformf("u_texsize", vec.set(region.getTexture().getWidth() / scale,
 					region.getTexture().getHeight() / scale));
 		}
-		
+	}
+
+	public static class SurfaceShader extends Shader{
+
+		public SurfaceShader(String frag){
+			super(frag, "default");
+		}
+
+		@Override
+		public void apply(){
+			shader.setUniformf("camerapos", Core.camera.position.x + Core.camera.zoom, Core.camera.position.y);
+			shader.setUniformf("screensize", Gdx.graphics.getWidth() / Core.cameraScale * Core.camera.zoom,
+					Gdx.graphics.getHeight() / Core.cameraScale * Core.camera.zoom);
+			shader.setUniformf("time", Timers.time());
+		}
 	}
 }

core/src/io/anuke/mindustry/resource/Liquid.java

@@ -23,7 +23,7 @@ public class Liquid {
 			heatCapacity = 0.2f;
 		}
 	},
-	lava = new Liquid("lava", Color.valueOf("ed5334")){
+	lava = new Liquid("lava", Color.valueOf("e37341")){
 		{
 			temperature = 0.7f;
 			viscosity = 0.8f;

core/src/io/anuke/mindustry/world/blocks/Blocks.java

@@ -49,6 +49,7 @@ public class Blocks{
 			solid = true;
 			liquidDrop = Liquid.lava;
 			liquid = true;
+			drawLayer = DrawLayer.lava;
 		}
 		
 		@Override
@@ -69,6 +70,7 @@ public class Blocks{
 			solid = true;
 			liquidDrop = Liquid.oil;
 			liquid = true;
+			drawLayer = DrawLayer.oil;
 		}
 		
 		@Override