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+package me.shedaniel.lightoverlay;
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+
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+import com.mojang.blaze3d.platform.GlStateManager;
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+import net.minecraft.block.BlockState;
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+import net.minecraft.block.Blocks;
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+import net.minecraft.client.Minecraft;
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+import net.minecraft.client.entity.player.ClientPlayerEntity;
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+import net.minecraft.client.renderer.ActiveRenderInfo;
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+import net.minecraft.client.renderer.BufferBuilder;
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+import net.minecraft.client.renderer.Tessellator;
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+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
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+import net.minecraft.client.settings.KeyBinding;
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+import net.minecraft.client.util.InputMappings;
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+import net.minecraft.entity.Entity;
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+import net.minecraft.entity.EntityClassification;
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+import net.minecraft.entity.EntityType;
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+import net.minecraft.entity.player.PlayerEntity;
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+import net.minecraft.util.ResourceLocation;
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+import net.minecraft.util.math.BlockPos;
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+import net.minecraft.util.math.shapes.VoxelShape;
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+import net.minecraft.util.text.TranslationTextComponent;
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+import net.minecraft.world.LightType;
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+import net.minecraft.world.World;
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+import net.minecraftforge.api.distmarker.Dist;
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+import net.minecraftforge.api.distmarker.OnlyIn;
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+import net.minecraftforge.client.event.InputEvent;
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+import net.minecraftforge.client.event.RenderWorldLastEvent;
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+import net.minecraftforge.client.settings.KeyConflictContext;
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+import net.minecraftforge.client.settings.KeyModifier;
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+import net.minecraftforge.common.MinecraftForge;
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+import net.minecraftforge.eventbus.api.SubscribeEvent;
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+import net.minecraftforge.fml.client.registry.ClientRegistry;
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+import net.minecraftforge.fml.common.Mod;
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+
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+import java.awt.*;
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+
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+@OnlyIn(Dist.CLIENT)
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+@Mod("lightoverlay-forge")
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+public class LightOverlay {
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+
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+ private static final String KEYBIND_CATEGORY = "key.lightoverlay-forge.category";
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+ private static final ResourceLocation ENABLE_OVERLAY_KEYBIND = new ResourceLocation("lightoverlay-forge", "enable_overlay");
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+ private static final ResourceLocation INCREASE_REACH_KEYBIND = new ResourceLocation("lightoverlay-forge", "increase_reach");
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+ private static final ResourceLocation DECREASE_REACH_KEYBIND = new ResourceLocation("lightoverlay-forge", "decrease_reach");
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+ private static KeyBinding enableOverlay, increaseReach, decreaseReach;
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+ private static boolean enabled = false;
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+ private static int reach = 12;
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+ private static EntityType<Entity> testingEntityType;
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+
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+ public LightOverlay() {
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+ testingEntityType = EntityType.Builder.create(EntityClassification.MONSTER).size(0f, 0f).disableSerialization().build(null);
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+ enableOverlay = registerKeybind(ENABLE_OVERLAY_KEYBIND, InputMappings.Type.KEYSYM, 296, KEYBIND_CATEGORY);
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+ increaseReach = registerKeybind(INCREASE_REACH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
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+ decreaseReach = registerKeybind(DECREASE_REACH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
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+ MinecraftForge.EVENT_BUS.register(this);
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+ }
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+
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+ public static CrossType getCrossType(BlockPos pos, World world, PlayerEntity playerEntity) {
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+ BlockState blockBelowState = world.getBlockState(pos.down());
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+ BlockState blockState = world.getBlockState(pos);
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+ if (blockBelowState.isAir() || !blockState.isAir())
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+ return CrossType.NONE;
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+ if (blockBelowState.getBlock() == Blocks.BEDROCK || blockBelowState.getBlock() == Blocks.BARRIER)
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+ return CrossType.NONE;
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+ if (!blockBelowState.canEntitySpawn(world, pos.down(), testingEntityType))
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+ return CrossType.NONE;
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+ if (world.getLightFor(LightType.BLOCK, pos) >= 8)
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+ return CrossType.NONE;
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+ if (world.getLightFor(LightType.SKY, pos) >= 8)
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+ return CrossType.YELLOW;
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+ return CrossType.RED;
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+ }
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+
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+ public static void renderCross(BlockPos pos, Color color, PlayerEntity entity) {
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+ ActiveRenderInfo info = Minecraft.getInstance().gameRenderer.getActiveRenderInfo();
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+ GlStateManager.lineWidth(1.0F);
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+ GlStateManager.depthMask(false);
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+ GlStateManager.disableTexture();
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+ Tessellator tessellator = Tessellator.getInstance();
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+ BufferBuilder buffer = tessellator.getBuffer();
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+ double d0 = info.getProjectedView().x;
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+ double d1 = info.getProjectedView().y - .005D;
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+ double d2 = info.getProjectedView().z;
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+
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+ buffer.begin(1, DefaultVertexFormats.POSITION_COLOR);
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+ buffer.pos(pos.getX() + .01 - d0, pos.getY() - d1, pos.getZ() + .01 - d2).color(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha()).endVertex();
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+ buffer.pos(pos.getX() - .01 + 1 - d0, pos.getY() - d1, pos.getZ() - .01 + 1 - d2).color(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha()).endVertex();
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+ buffer.pos(pos.getX() - .01 + 1 - d0, pos.getY() - d1, pos.getZ() + .01 - d2).color(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha()).endVertex();
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+ buffer.pos(pos.getX() + .01 - d0, pos.getY() - d1, pos.getZ() - .01 + 1 - d2).color(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha()).endVertex();
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+ tessellator.draw();
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+ GlStateManager.depthMask(true);
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+ GlStateManager.enableTexture();
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+ }
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+
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+ @SubscribeEvent(receiveCanceled = true)
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+ public void handleInput(InputEvent.KeyInputEvent event) {
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+ if (enableOverlay.isPressed())
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+ enabled = !enabled;
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+ if (increaseReach.isPressed()) {
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+ if (reach < 50)
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+ reach++;
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+ Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_reach", reach), false);
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+ }
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+ if (decreaseReach.isPressed()) {
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+ if (reach > 1)
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+ reach--;
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+ Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_reach", reach), false);
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+ }
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+ }
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+
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+ @SubscribeEvent
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+ public void renderWorldLast(RenderWorldLastEvent event) {
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+ if (LightOverlay.enabled) {
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+ Minecraft client = Minecraft.getInstance();
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+ ClientPlayerEntity playerEntity = client.player;
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+ World world = client.world;
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+ GlStateManager.disableTexture();
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+ GlStateManager.disableBlend();
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+ BlockPos playerPos = new BlockPos(playerEntity.posX, playerEntity.posY, playerEntity.posZ);
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+ BlockPos.getAllInBox(playerPos.add(-reach, -reach, -reach), playerPos.add(reach, reach, reach)).forEach(pos -> {
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+ if (world.getBiome(pos).getSpawningChance() > 0) {
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+ CrossType type = LightOverlay.getCrossType(pos, world, playerEntity);
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+ if (type != CrossType.NONE) {
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+ VoxelShape shape = world.getBlockState(pos).getCollisionShape(world, pos);
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+ Color color = type == CrossType.RED ? Color.RED : Color.YELLOW;
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+ LightOverlay.renderCross(pos, color, playerEntity);
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+ }
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+ }
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+ });
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+ GlStateManager.enableBlend();
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+ GlStateManager.enableTexture();
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+ }
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+ }
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+
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+ private KeyBinding registerKeybind(ResourceLocation resourceLocation, InputMappings.Type type, int keyCode, String category) {
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+ KeyBinding keyBinding = new KeyBinding("key." + resourceLocation.getNamespace() + "." + resourceLocation.getPath(), KeyConflictContext.IN_GAME, KeyModifier.NONE, type, keyCode, category);
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+ ClientRegistry.registerKeyBinding(keyBinding);
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+ return keyBinding;
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+ }
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+
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+ private static enum CrossType {
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+ YELLOW,
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+ RED,
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+ NONE
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+ }
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+
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+}
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Unknown
