Added Placement Preview

core/assets/bundles/bundle.properties

@@ -270,6 +270,7 @@ setting.multithread.name=Multithreading
 setting.fps.name=Show FPS
 setting.vsync.name=VSync
 setting.lasers.name=Show Power Lasers
+setting.previewopacity.name = Placing Preview Opacity
 setting.healthbars.name=Show Entity Health bars
 setting.pixelate.name=Pixelate Screen
 setting.musicvol.name=Music Volume

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

@@ -12,12 +12,16 @@ import io.anuke.mindustry.world.Layer;
 import io.anuke.mindustry.world.Tile;
 import io.anuke.mindustry.world.blocks.Blocks;
 import io.anuke.mindustry.world.blocks.types.StaticBlock;
+import io.anuke.mindustry.world.blocks.types.defense.Turret;
+import io.anuke.mindustry.world.blocks.types.production.Drill;
+import io.anuke.mindustry.world.blocks.types.production.Pump;
 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.Lines;
 import io.anuke.ucore.util.Mathf;
+import io.anuke.ucore.core.*;
 
 import java.util.Arrays;
 
@@ -280,4 +284,42 @@ public class BlockRenderer{
             cbatch.dispose();
         cbatch = new CacheBatch(world.width() * world.height() * 4);
     }
+    
+    public void drawPreview(Block block, float drawx, float drawy, float rotation, float opacity) {
+        Draw.reset();
+        Draw.alpha(opacity);
+        Draw.rect(block.name(), drawx, drawy, rotation);
+    }
+    
+    public void handlePreview(Block block, float rotation, float drawx, float drawy, int tilex, int tiley) {
+        
+        if(control.input().recipe != null && state.inventory.hasItems(control.input().recipe.requirements)
+           && control.input().validPlace(tilex, tiley, block) && (android || control.input().cursorNear())) {
+            
+            float opacity = (float)Settings.getInt("previewopacity")/100f;
+            
+            if(block.isMultiblock()) {
+                if((tiley - control.input().getBlockY()) % block.height != 0
+                   || (tilex - control.input().getBlockX()) % block.width != 0) return;
+            }
+            
+            if(block instanceof Turret) {
+                Draw.alpha(opacity);
+                if (block.isMultiblock()) {
+                    Draw.rect("block-" + block.width + "x" + block.height, drawx, drawy);
+                } else {
+                    Draw.rect("block", drawx, drawy);
+                }
+            }
+            
+            drawPreview(block, drawx, drawy, rotation, opacity);
+            
+            Tile tile = world.tile(tilex, tiley);
+            if((block instanceof Drill || block instanceof Pump) && block.isLayer(tile)) {
+                block.drawLayer(tile);
+            }
+            
+            Draw.reset();
+        }
+    }
 }

core/src/io/anuke/mindustry/input/PlaceMode.java

@@ -7,6 +7,7 @@ import com.badlogic.gdx.math.Vector2;
 import io.anuke.mindustry.ui.fragments.ToolFragment;
 import io.anuke.mindustry.world.Block;
 import io.anuke.mindustry.world.Tile;
+import io.anuke.mindustry.world.blocks.types.production.Drill;
 import io.anuke.ucore.core.Timers;
 import io.anuke.ucore.graphics.Draw;
 import io.anuke.ucore.graphics.Lines;
@@ -40,11 +41,14 @@ public enum PlaceMode{
                         tilesize * control.input().recipe.result.height + si);
             
             control.input().recipe.result.drawPlace(tilex, tiley, control.input().rotation, valid);
-			Lines.stroke(2f);
+            
+            renderer.getBlocks().handlePreview(control.input().recipe.result, control.input().recipe.result.rotate ? control.input().rotation * 90 : 0f, x + offset.x, y + offset.y, tilex, tiley);
             
             if(control.input().recipe.result.rotate){
+                
                 Draw.color(Colors.get("placeRotate"));
                 tr.trns(control.input().rotation * 90, 7, 0);
+                Lines.stroke(2f);
                 Lines.line(x, y, x + tr.x, y + tr.y);
             }
         }
@@ -281,16 +285,19 @@ public enum PlaceMode{
                         int px = tx + cx * Mathf.sign(ex - tx),
                                 py = ty + cy * Mathf.sign(ey - ty);
                         
+                        renderer.getBlocks().handlePreview(control.input().recipe.result, control.input().recipe.result.rotate ? rotation * 90 : 0f, px * t + offset.x, py * t + offset.y, px, py);
+                        
                         if(!control.input().validPlace(px, py, control.input().recipe.result)
-								|| !state.inventory.hasItems(control.input().recipe.requirements, amount)){
+                           || !state.inventory.hasItems(control.input().recipe.requirements, amount))
                             Lines.crect(px * t + offset.x, py * t + offset.y, t*block.width, t*block.height);
-						}
+                        
                         amount ++;
                     }
                 }
                 
                 if(control.input().recipe.result.rotate){
                     float cx = tx * t, cy = ty * t;
+                    Lines.stroke(2f);
                     Draw.color(Colors.get("placeRotate"));
                     tr.trns(rotation * 90, 7, 0);
                     Lines.line(cx, cy, cx + tr.x, cy + tr.y);

core/src/io/anuke/mindustry/ui/dialogs/SettingsMenuDialog.java

@@ -139,6 +139,7 @@ public class SettingsMenuDialog extends SettingsDialog{
 
 		graphics.checkPref("fps", false);
 		graphics.checkPref("lasers", true);
+        graphics.sliderPref("previewopacity", 50, 0, 100, i -> i + "%");
 		graphics.checkPref("indicators", true);
 		graphics.checkPref("healthbars", true);
 		graphics.checkPref("pixelate", true, b -> {