2 files changed, 96 insertions, 8 deletions

diff --git a/src/main/java/ftbsc/bscv/modules/motion/GuiMove.java b/src/main/java/ftbsc/bscv/modules/motion/GuiMove.java
index d567375..193d77a 100644
--- a/src/main/java/ftbsc/bscv/modules/motion/GuiMove.java
+++ b/src/main/java/ftbsc/bscv/modules/motion/GuiMove.java
@@ -2,9 +2,10 @@ package ftbsc.bscv.modules.motion;
 
 import com.google.auto.service.AutoService;
 
-import ftbsc.bscv.ICommons;
 import ftbsc.bscv.api.ILoadable;
 import ftbsc.bscv.modules.AbstractModule;
+import ftbsc.bscv.patches.BackgroundPatch.RenderBackgroundEvent;
+import ftbsc.bscv.tools.Setting;
 import net.minecraft.client.gui.advancements.AdvancementsScreen;
 import net.minecraft.client.gui.screen.CustomizeSkinScreen;
 import net.minecraft.client.gui.screen.IngameMenuScreen;
@@ -15,13 +16,26 @@ import net.minecraft.client.gui.screen.inventory.ContainerScreen;
 import net.minecraft.client.settings.KeyBinding;
 import net.minecraft.client.util.InputMappings;
 import net.minecraftforge.client.event.InputUpdateEvent;
+import net.minecraftforge.common.ForgeConfigSpec;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.client.gui.screen.ModListScreen;
 
 @AutoService(ILoadable.class)
-public class GuiMove extends AbstractModule implements ICommons {
+public class GuiMove extends AbstractModule {
 
-	private boolean once = false;
+	// TODO allow pausing GuiMove when a textfield is selected
+
+	public final ForgeConfigSpec.ConfigValue<Boolean> background;
+
+	public GuiMove() {
+		super();
+
+		this.background = Setting.Bool.builder()
+			.fallback(true)
+			.name("background")
+			.comment("show background on inventories when allowing to move")
+			.build(this);
+	}
 
 	private boolean isKeyDown(KeyBinding key) {
 		return InputMappings.isKeyDown(MC.getWindow().getWindow(), key.getKey().getValue());
@@ -56,6 +70,10 @@ public class GuiMove extends AbstractModule implements ICommons {
 
 		MC.player.input.forwardImpulse = MC.player.input.up == MC.player.input.down ? 0.0F : (MC.player.input.up ? 1.0F : -1.0F);
 		MC.player.input.leftImpulse = MC.player.input.left == MC.player.input.right ? 0.0F : (MC.player.input.left ? 1.0F : -1.0F);
+
+		if (MC.player.input.shiftKeyDown && !MC.player.isSprinting()) {
+			MC.player.setSprinting(true);
+		}
 	}
 
 	private boolean allowMovementOnThisScreen(Screen screen) {
@@ -68,12 +86,18 @@ public class GuiMove extends AbstractModule implements ICommons {
 	}
 
 	@SubscribeEvent
+	public void onRenderBackground(RenderBackgroundEvent event) {
+		if (!this.background.get() && event.screen instanceof ContainerScreen) {
+			event.setCanceled(true);
+		}
+	}
+
+	@SubscribeEvent
 	public void onInputUpdate(InputUpdateEvent event) {
 		if (MC.player == null) return;
 		if (event.getEntityLiving() != MC.player) return;
 
 		if (this.allowMovementOnThisScreen(MC.screen)) {
-			once = true;
 			for (KeyBinding key : this.keys) {
 				boolean state = InputMappings.isKeyDown(MC.getWindow().getWindow(), key.getKey().getValue());
 				if (state ^ key.isDown()) {
@@ -82,10 +106,6 @@ public class GuiMove extends AbstractModule implements ICommons {
 				}
 			}
 			this.forceMovementTick();
-		} else if (once) { // release all keys once we leave the screen
-			once = false;
-			KeyBinding.releaseAll(); // TODO maybe only release movement keys?
 		}
 	}
-
 }
diff --git a/src/main/java/ftbsc/bscv/patches/BackgroundPatch.java b/src/main/java/ftbsc/bscv/patches/BackgroundPatch.java
new file mode 100644
index 0000000..dae50ed
--- /dev/null
+++ b/src/main/java/ftbsc/bscv/patches/BackgroundPatch.java
@@ -0,0 +1,68 @@
+package ftbsc.bscv.patches;
+
+import ftbsc.bscv.ICommons;
+import ftbsc.lll.processor.annotations.Injector;
+import ftbsc.lll.processor.annotations.Patch;
+import ftbsc.lll.processor.annotations.Target;
+import ftbsc.lll.tools.InsnSequence;
+import ftbsc.lll.tools.PatternMatcher;
+import ftbsc.lll.tools.debug.BytecodePrinter;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.eventbus.api.Cancelable;
+import net.minecraftforge.eventbus.api.Event;
+
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.*;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+
+public class BackgroundPatch implements ICommons {
+
+	public static boolean shouldDrawBackground(Screen screen) {
+		return MinecraftForge.EVENT_BUS.post(new RenderBackgroundEvent(screen));
+	}
+
+	@Cancelable
+	public static class RenderBackgroundEvent extends Event {
+		public final Screen screen;
+
+		public RenderBackgroundEvent(Screen screen) {
+			this.screen = screen;
+		}
+	}
+
+	@Patch(value = Screen.class, reason = "add hook to cancel background on some screens")
+	public abstract static class BackgroundOverride implements Opcodes {
+		@Target
+		abstract void renderBackground(MatrixStack stack, int x);
+
+		@Injector
+		public void inject(ClassNode clazz, MethodNode main) {
+			AbstractInsnNode found = PatternMatcher.builder()
+				.opcodes(ALOAD, ALOAD, ICONST_0, ICONST_0)
+				.ignoreFrames()
+				.ignoreLabels()
+				.ignoreLineNumbers()
+				.build()
+				.find(main)
+				// .getFirst(); // TODO returns first InsnNode of method instead of match?
+				.getLast().getPrevious().getPrevious().getPrevious();
+
+			LabelNode skip = new LabelNode();
+			InsnSequence is = new InsnSequence();
+			is.add(new VarInsnNode(ALOAD, 0));
+			is.add(new MethodInsnNode(
+				INVOKESTATIC,
+				"ftbsc/bscv/patches/BackgroundPatch$BackgroundHook",
+				"shouldDrawBackground",
+				"(Lnet/minecraft/client/gui/screen/Screen;)Z"
+			));
+			is.add(new JumpInsnNode(IFEQ, skip));
+			is.add(new InsnNode(RETURN));
+			is.add(skip);
+
+			main.instructions.insertBefore(found, is);
+		}
+	}
+}