Merge pull request #117 from hellomouse/feature-blockpreview

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

@@ -12,13 +12,14 @@ 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.ucore.core.Core;
 import io.anuke.ucore.core.Graphics;
+import io.anuke.ucore.core.Settings;
 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 java.util.Arrays;
 
 import static io.anuke.mindustry.Vars.*;
@@ -27,6 +28,8 @@ import static io.anuke.ucore.core.Core.camera;
 public class BlockRenderer{
 	private final static int chunksize = 32;
 	private final static int initialRequests = 32*32;
+	private static float storeX = 0;
+	private static float storeY = 0;
 	
 	private int[][][] cache;
 	private CacheBatch cbatch;
@@ -280,4 +283,49 @@ 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.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())) {
+			
+			 if(block.isMultiblock()) {
+				 float halfBlockWidth = (block.width * tilesize) / 2;
+				 float halfBlockHeight = (block.height * tilesize) / 2;
+			 	if((storeX == 0 && storeY == 0)) {
+			 		storeX = drawx;
+			 		storeY = drawy;
+				}
+				if((storeX == drawx - halfBlockWidth || storeX == drawx + halfBlockWidth || storeY == drawy - halfBlockHeight || storeY == drawy + halfBlockHeight) &&
+				   ((tiley - control.input().getBlockY()) % block.height != 0 || (tilex - control.input().getBlockX()) % block.width != 0)) {
+			 		return;
+			 	}
+			 	else {
+					storeX = drawx;
+					storeY = drawy;
+				}
+			 }
+			
+			float opacity = (float) Settings.getInt("previewopacity") / 100f;
+			Draw.color(Color.WHITE);
+			Draw.alpha(opacity);
+			
+			if(block instanceof Turret) {
+				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);
+			
+			Draw.reset();
+		}
+	}
 }

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

@@ -34,15 +34,17 @@ public enum PlaceMode{
 			
 			float si = MathUtils.sin(Timers.time() / 6f) + 1.5f;
 			
+			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);
+			
 			Draw.color(valid ? Colors.get("place") : Colors.get("placeInvalid"));
 			Lines.stroke(2f);
 			Lines.crect(x + offset.x, y + offset.y, tilesize * control.input().recipe.result.width + si,
 						tilesize * control.input().recipe.result.height + si);
 			
 			control.input().recipe.result.drawPlace(tilex, tiley, control.input().rotation, valid);
-			Lines.stroke(2f);
 			
 			if(control.input().recipe.result.rotate){
+				
 				Draw.color(Colors.get("placeRotate"));
 				tr.trns(control.input().rotation * 90, 7, 0);
 				Lines.line(x, y, x + tr.x, y + tr.y);
@@ -273,16 +275,18 @@ public enum PlaceMode{
 				Draw.alpha(0.3f);
 				Draw.crect("blank", x, y, x2 - x, y2 - y);
 				
-				Draw.color(Colors.get("placeInvalid"));
-				
 				int amount = 1;
 				for(int cx = 0; cx <= Math.abs(endx - tilex); cx ++){
 					for(int cy = 0; cy <= Math.abs(endy - tiley); cy ++){
 						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)){
+							Lines.stroke(2f);
+							Draw.color(Colors.get("placeInvalid"));
 							Lines.crect(px * t + offset.x, py * t + offset.y, t*block.width, t*block.height);
 						}
 						amount ++;
@@ -291,6 +295,7 @@ public enum PlaceMode{
 				
 				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 -> {