Brief shockwave experiment

core/assets/shaders/shockwave.frag

@@ -0,0 +1,42 @@
+#define MAX_SHOCKWAVES 64
+#define WAVE_RADIUS 4.0
+#define DIFF_SCL 1
+#define WAVE_POW 0.8
+
+varying vec2 v_texCoords;
+
+uniform sampler2D u_texture;
+uniform vec2 u_resolution;
+uniform vec2 u_campos;
+uniform vec4 u_shockwaves[MAX_SHOCKWAVES];
+uniform int u_shockwave_count;
+
+void main(){
+    vec2 worldCoords = v_texCoords * u_resolution + u_campos;
+    vec2 uv = v_texCoords;
+    vec2 displacement = vec2(0.0, 0.0);
+
+    for(int i = 0; i < MAX_SHOCKWAVES; i ++){
+        vec4 wave = u_shockwaves[i];
+        float radius = wave.z;
+        float strength = wave.w;
+        float dst = distance(worldCoords, wave.xy);
+        float realStrength = 1.0 - pow(1.0 - strength, 5.0);
+
+        if(abs(dst - radius) <= WAVE_RADIUS){
+            float diff = dst - radius;
+            float pdiff = 1.0 - pow(abs(diff * DIFF_SCL), WAVE_POW);
+            float diffTime = diff  * pdiff;
+            vec2 relative = normalize(worldCoords - wave.xy);
+
+            displacement += (relative * diffTime * strength) / u_resolution;
+        }
+
+        if(i >= u_shockwave_count - 1){
+            break;
+        }
+    }
+
+    vec4 c = texture2D(u_texture, uv + displacement);
+    gl_FragColor = c;
+}

core/src/mindustry/entities/comp/BuildingComp.java

@@ -85,6 +85,8 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     transient float efficiency;
     /** Same as efficiency, but for optional consumers only. */
     transient float optionalEfficiency;
+    /** The efficiency this block would have if consValid() / productionValid() returned true. */
+    transient float potentialEfficiency;
 
     transient float healSuppressionTime = -1f;
     transient float lastHealTime = -120f * 10f;
@@ -224,7 +226,7 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
 
         //version 3 has efficiency numbers instead of bools
         if(version >= 3){
-            efficiency = read.ub() / 255f;
+            efficiency = potentialEfficiency = read.ub() / 255f;
             optionalEfficiency = read.ub() / 255f;
         }
 
@@ -1640,7 +1642,7 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     }
 
     public boolean canConsume(){
-        return efficiency > 0;
+        return potentialEfficiency > 0;
     }
 
     /** Scaled delta. */
@@ -1671,40 +1673,43 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     public void updateConsumption(){
         //everything is valid when cheating
         if(!block.hasConsumers || cheating()){
-            efficiency = optionalEfficiency = 1f;
+            potentialEfficiency = efficiency = optionalEfficiency = 1f;
             return;
         }
 
         //disabled -> nothing works
         if(!enabled){
-            efficiency = optionalEfficiency = 0f;
+            potentialEfficiency = efficiency = optionalEfficiency = 0f;
             return;
         }
 
         //TODO why check for old state?
         boolean prevValid = efficiency > 0, update = shouldConsume() && productionValid();
 
-        if(update){
-            float minEfficiency = 1f;
+        float minEfficiency = 1f;
 
-            //assume efficiency is 1 for the calculations below
-            efficiency = optionalEfficiency = 1f;
+        //assume efficiency is 1 for the calculations below
+        efficiency = optionalEfficiency = 1f;
 
-            //first pass: get the minimum efficiency of any consumer
-            for(var cons : block.nonOptionalConsumers){
-                minEfficiency = Math.min(minEfficiency, cons.efficiency(self()));
-            }
+        //first pass: get the minimum efficiency of any consumer
+        for(var cons : block.nonOptionalConsumers){
+            minEfficiency = Math.min(minEfficiency, cons.efficiency(self()));
+        }
 
-            //same for optionals
-            for(var cons : block.optionalConsumers){
-                optionalEfficiency = Math.min(optionalEfficiency, cons.efficiency(self()));
-            }
+        //same for optionals
+        for(var cons : block.optionalConsumers){
+            optionalEfficiency = Math.min(optionalEfficiency, cons.efficiency(self()));
+        }
 
-            //efficiency is now this minimum value
-            efficiency = minEfficiency;
-            optionalEfficiency = Math.min(optionalEfficiency, minEfficiency);
-        }else{
-            //should not consume, efficiency now zero
+        //efficiency is now this minimum value
+        efficiency = minEfficiency;
+        optionalEfficiency = Math.min(optionalEfficiency, minEfficiency);
+
+        //assign "potential"
+        potentialEfficiency = efficiency;
+
+        //no updating means zero efficiency
+        if(!update){
             efficiency = optionalEfficiency = 0f;
         }
 

core/src/mindustry/graphics/Shaders.java

@@ -9,7 +9,9 @@ import arc.graphics.g3d.*;
 import arc.graphics.gl.*;
 import arc.math.geom.*;
 import arc.scene.ui.layout.*;
+import arc.struct.*;
 import arc.util.*;
+import mindustry.game.EventType.*;
 import mindustry.type.*;
 
 import static mindustry.Vars.*;
@@ -28,6 +30,7 @@ public class Shaders{
     public static CloudShader clouds;
     public static PlanetGridShader planetGrid;
     public static AtmosphereShader atmosphere;
+    public static ShockwaveShader shockwave;
     public static MeshShader mesh;
     public static Shader unlit;
     public static Shader screenspace;
@@ -67,6 +70,9 @@ public class Shaders{
         atmosphere = new AtmosphereShader();
         unlit = new LoadShader("planet", "unlit");
         screenspace = new LoadShader("screenspace", "screenspace");
+
+        //disabled for now...
+        //shockwave = new ShockwaveShader();
     }
 
     public static class AtmosphereShader extends LoadShader{
@@ -350,6 +356,112 @@ public class Shaders{
         }
     }
 
+    public static class ShockwaveShader extends LoadShader{
+        static final int max = 64;
+        static final int size = 5;
+        static final String[] uniformNames = new String[max];
+
+        //x y radius life[1-0] lifetime
+        protected FloatSeq data = new FloatSeq();
+        protected boolean hadAny = false;
+        protected FrameBuffer buffer = new FrameBuffer();
+
+        public float lifetime = 20f;
+
+        static{
+            for(int i = 0; i < max; i++){
+                uniformNames[i] = "u_shockwaves[" + i + "]";
+            }
+        }
+
+        public ShockwaveShader(){
+            super("shockwave", "screenspace");
+
+            Events.run(Trigger.update, () -> {
+                if(state.isPaused()) return;
+                if(state.isMenu()){
+                    data.size = 0;
+                    return;
+                }
+
+                var items = data.items;
+                for(int i = 0; i < data.size; i += size){
+                    //decrease lifetime
+                    items[i + 3] -= Time.delta / items[i + 4];
+
+                    if(items[i + 3] <= 0f){
+                        //swap with head.
+                        if(data.size > size){
+                            System.arraycopy(items, data.size - size, items, i, size);
+                        }
+
+                        data.size -= size;
+                        i -= size;
+                    }
+                }
+            });
+
+            Events.run(Trigger.preDraw, () -> {
+                hadAny = data.size > 0;
+
+                if(hadAny){
+                    buffer.resize(Core.graphics.getWidth(), Core.graphics.getHeight());
+                    buffer.begin(Color.clear);
+                }
+            });
+
+            Events.run(Trigger.postDraw, () -> {
+                if(hadAny){
+                    buffer.end();
+                    Draw.blend(Blending.disabled);
+                    buffer.blit(this);
+                    Draw.blend();
+                }
+            });
+        }
+
+        @Override
+        public void apply(){
+            int count = data.size / 4;
+
+            setUniformi("u_shockwave_count", count);
+            if(count > 0){
+                setUniformf("u_resolution", Core.camera.width, Core.camera.height);
+                setUniformf("u_campos", Core.camera.position.x - Core.camera.width/2f, Core.camera.position.y - Core.camera.height/2f);
+
+                var items = data.items;
+                for(int i = 0; i < count; i++){
+                    int offset = i * size;
+
+                    setUniformf(uniformNames[i],
+                        items[offset], items[offset + 1], //xy
+                        items[offset + 2] * (1f - items[offset + 3]), //radius * time
+                        items[offset + 3] //time
+                        //lifetime ignored
+                    );
+                }
+            }
+        }
+
+        public void add(float x, float y, float radius){
+            add(x, y, radius, 20f);
+        }
+
+        public void add(float x, float y, float radius, float lifetime){
+            //replace first entry
+            if(data.size / size >= max){
+                var items = data.items;
+                items[0] = x;
+                items[1] = y;
+                items[2] = radius;
+                items[3] = 1f;
+                items[4] = lifetime;
+            }else{
+                data.addAll(x, y, radius, 1f, lifetime);
+            }
+        }
+    }
+
     public static class LoadShader extends Shader{
         public LoadShader(String frag, String vert){
             super(getShaderFi(vert + ".vert"), getShaderFi(frag + ".frag"));

core/src/mindustry/world/blocks/defense/turrets/Turret.java

@@ -331,13 +331,13 @@ public class Turret extends ReloadTurret{
             //turret always reloads regardless of whether it's targeting something
             updateReload();
 
-            if(timer(timerTarget, targetInterval)){
-                findTarget();
-            }
-
             if(hasAmmo()){
                 if(Float.isNaN(reloadCounter)) reloadCounter = 0;
 
+                if(timer(timerTarget, targetInterval)){
+                    findTarget();
+                }
+
                 if(validateTarget()){
                     boolean canShoot = true;
 
@@ -402,7 +402,7 @@ public class Turret extends ReloadTurret{
         }
 
         protected void turnToTarget(float targetRot){
-            rotation = Angles.moveToward(rotation, targetRot, rotateSpeed * delta() * baseReloadSpeed());
+            rotation = Angles.moveToward(rotation, targetRot, rotateSpeed * delta() * potentialEfficiency);
         }
 
         public boolean shouldTurn(){

core/src/mindustry/world/blocks/storage/CoreBlock.java

@@ -107,7 +107,7 @@ public class CoreBlock extends StorageBlock{
     public void init(){
         //assign to update clipSize internally
         lightRadius = 30f + 20f * size;
-        fogRadius = Math.max(fogRadius, (int)(lightRadius / 8f * 3f) + 5);
+        fogRadius = Math.max(fogRadius, (int)(lightRadius / 8f * 3f) + 13);
         emitLight = true;
 
         super.init();