src/main/java/me/shedaniel/lightoverlay/LightOverlay.java

   1 package me.shedaniel.lightoverlay;
   2
   3 import com.mojang.blaze3d.platform.GlStateManager;
   4 import net.minecraft.block.Block;
   5 import net.minecraft.block.BlockState;
   6 import net.minecraft.client.Minecraft;
   7 import net.minecraft.client.entity.player.ClientPlayerEntity;
   8 import net.minecraft.client.renderer.ActiveRenderInfo;
   9 import net.minecraft.client.renderer.BufferBuilder;
  10 import net.minecraft.client.renderer.Tessellator;
  11 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
  12 import net.minecraft.client.settings.KeyBinding;
  13 import net.minecraft.client.util.InputMappings;
  14 import net.minecraft.entity.Entity;
  15 import net.minecraft.entity.EntityClassification;
  16 import net.minecraft.entity.EntityType;
  17 import net.minecraft.entity.player.PlayerEntity;
  18 import net.minecraft.tags.BlockTags;
  19 import net.minecraft.util.Direction;
  20 import net.minecraft.util.ResourceLocation;
  21 import net.minecraft.util.math.BlockPos;
  22 import net.minecraft.util.math.shapes.ISelectionContext;
  23 import net.minecraft.util.math.shapes.VoxelShape;
  24 import net.minecraft.util.text.TranslationTextComponent;
  25 import net.minecraft.world.LightType;
  26 import net.minecraft.world.World;
  27 import net.minecraft.world.biome.Biome;
  28 import net.minecraftforge.api.distmarker.Dist;
  29 import net.minecraftforge.api.distmarker.OnlyIn;
  30 import net.minecraftforge.client.event.InputEvent;
  31 import net.minecraftforge.client.event.RenderWorldLastEvent;
  32 import net.minecraftforge.client.settings.KeyConflictContext;
  33 import net.minecraftforge.client.settings.KeyModifier;
  34 import net.minecraftforge.common.MinecraftForge;
  35 import net.minecraftforge.eventbus.api.SubscribeEvent;
  36 import net.minecraftforge.fml.client.registry.ClientRegistry;
  37 import net.minecraftforge.fml.common.Mod;
  38
  39 import java.awt.*;
  40 import java.io.File;
  41 import java.io.FileInputStream;
  42 import java.io.FileOutputStream;
  43 import java.io.IOException;
  44 import java.text.DecimalFormat;
  45 import java.util.Map;
  46 import java.util.Properties;
  47
  48 @OnlyIn(Dist.CLIENT)
  49 @Mod("lightoverlay-forge")
  50 public class LightOverlay {
  51
  52     private static final String KEYBIND_CATEGORY = "key.lightoverlay-forge.category";
  53     private static final ResourceLocation ENABLE_OVERLAY_KEYBIND = new ResourceLocation("lightoverlay-forge", "enable_overlay");
  54     private static final ResourceLocation INCREASE_REACH_KEYBIND = new ResourceLocation("lightoverlay-forge", "increase_reach");
  55     private static final ResourceLocation DECREASE_REACH_KEYBIND = new ResourceLocation("lightoverlay-forge", "decrease_reach");
  56     private static final ResourceLocation INCREASE_LINE_WIDTH_KEYBIND = new ResourceLocation("lightoverlay-forge", "increase_line_width");
  57     private static final ResourceLocation DECREASE_LINE_WIDTH_KEYBIND = new ResourceLocation("lightoverlay-forge", "decrease_line_width");
  58     private static final DecimalFormat FORMAT = new DecimalFormat("#.#");
  59     private static KeyBinding enableOverlay, increaseReach, decreaseReach, increaseLineWidth, decreaseLineWidth;
  60     private static boolean enabled = false;
  61     private static int reach = 12;
  62     private static EntityType<Entity> testingEntityType;
  63     private static float lineWidth = 1.0F;
  64     private static File configFile = new File(new File(Minecraft.getInstance().gameDir, "config"), "lightoverlay.properties");
  65
  66     public LightOverlay() {
  67         // Load Config
  68         loadConfig(configFile);
  69
  70         // Setup
  71         testingEntityType = EntityType.Builder.create(EntityClassification.MONSTER).size(0f, 0f).disableSerialization().build(null);
  72         enableOverlay = registerKeybind(ENABLE_OVERLAY_KEYBIND, InputMappings.Type.KEYSYM, 296, KEYBIND_CATEGORY);
  73         increaseReach = registerKeybind(INCREASE_REACH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
  74         decreaseReach = registerKeybind(DECREASE_REACH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
  75         increaseLineWidth = registerKeybind(INCREASE_LINE_WIDTH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
  76         decreaseLineWidth = registerKeybind(DECREASE_LINE_WIDTH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
  77         MinecraftForge.EVENT_BUS.register(this);
  78     }
  79
  80     public static CrossType getCrossType(BlockPos pos, World world, PlayerEntity playerEntity) {
  81         BlockState blockBelowState = world.getBlockState(pos.down());
  82         BlockState blockUpperState = world.getBlockState(pos);
  83         VoxelShape upperCollisionShape = blockUpperState.getCollisionShape(world, pos, ISelectionContext.forEntity(playerEntity));
  84         /* WorldEntitySpawner.func_222266_a */
  85         // Check if the outline is full
  86         if (Block.doesSideFillSquare(upperCollisionShape, Direction.UP))
  87             return CrossType.NONE;
  88         // Check if there is power
  89         if (blockUpperState.canProvidePower())
  90             return CrossType.NONE;
  91         // Check if the collision has a bump
  92         if (upperCollisionShape.getEnd(Direction.Axis.Y) > 0)
  93             return CrossType.NONE;
  94         if (blockUpperState.getBlock().isIn(BlockTags.RAILS))
  95             return CrossType.NONE;
  96         // Check block state allow spawning (excludes bedrock and barriers automatically)
  97         if (!blockBelowState.canEntitySpawn(world, pos.down(), testingEntityType))
  98             return CrossType.NONE;
  99         if (world.getLightFor(LightType.BLOCK, pos) >= 8)
 100             return CrossType.NONE;
 101         if (world.getLightFor(LightType.SKY, pos) >= 8)
 102             return CrossType.YELLOW;
 103         return CrossType.RED;
 104     }
 105
 106     public static void renderCross(World world, BlockPos pos, Color color, PlayerEntity entity) {
 107         ActiveRenderInfo info = Minecraft.getInstance().gameRenderer.getActiveRenderInfo();
 108         GlStateManager.lineWidth(lineWidth);
 109         GlStateManager.depthMask(false);
 110         GlStateManager.disableTexture();
 111         Tessellator tessellator = Tessellator.getInstance();
 112         BufferBuilder buffer = tessellator.getBuffer();
 113         double d0 = info.getProjectedView().x;
 114         double d1 = info.getProjectedView().y - .005D;
 115         VoxelShape upperOutlineShape = world.getBlockState(pos).getShape(world, pos, ISelectionContext.forEntity(entity));
 116         if (!upperOutlineShape.isEmpty())
 117             d1 -= upperOutlineShape.getEnd(Direction.Axis.Y);
 118         double d2 = info.getProjectedView().z;
 119
 120         buffer.begin(1, DefaultVertexFormats.POSITION_COLOR);
 121         buffer.pos(pos.getX() + .01 - d0, pos.getY() - d1, pos.getZ() + .01 - d2).color(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha()).endVertex();
 122         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();
 123         buffer.pos(pos.getX() - .01 + 1 - d0, pos.getY() - d1, pos.getZ() + .01 - d2).color(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha()).endVertex();
 124         buffer.pos(pos.getX() + .01 - d0, pos.getY() - d1, pos.getZ() - .01 + 1 - d2).color(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha()).endVertex();
 125         tessellator.draw();
 126         GlStateManager.depthMask(true);
 127         GlStateManager.enableTexture();
 128     }
 129
 130     @SubscribeEvent(receiveCanceled = true)
 131     public void handleInput(InputEvent.KeyInputEvent event) {
 132         if (enableOverlay.isPressed())
 133             enabled = !enabled;
 134         if (increaseReach.isPressed()) {
 135             if (reach < 50)
 136                 reach++;
 137             try {
 138                 saveConfig(configFile);
 139             } catch (IOException e) {
 140                 e.printStackTrace();
 141             }
 142             Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_reach", reach), false);
 143         }
 144         if (decreaseReach.isPressed()) {
 145             if (reach > 1)
 146                 reach--;
 147             try {
 148                 saveConfig(configFile);
 149             } catch (IOException e) {
 150                 e.printStackTrace();
 151             }
 152             Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_reach", reach), false);
 153         }
 154         if (increaseLineWidth.isPressed()) {
 155             if (lineWidth < 7)
 156                 lineWidth += 0.1f;
 157             try {
 158                 saveConfig(configFile);
 159             } catch (IOException e) {
 160                 e.printStackTrace();
 161             }
 162             Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_line_width", FORMAT.format(lineWidth)), false);
 163         }
 164         if (decreaseLineWidth.isPressed()) {
 165             if (lineWidth > 1)
 166                 lineWidth -= 0.1F;
 167             try {
 168                 saveConfig(configFile);
 169             } catch (IOException e) {
 170                 e.printStackTrace();
 171             }
 172             Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_line_width", FORMAT.format(lineWidth)), false);
 173         }
 174     }
 175
 176     @SubscribeEvent
 177     public void renderWorldLast(RenderWorldLastEvent event) {
 178         if (LightOverlay.enabled) {
 179             Minecraft client = Minecraft.getInstance();
 180             ClientPlayerEntity playerEntity = client.player;
 181             World world = client.world;
 182             GlStateManager.disableTexture();
 183             GlStateManager.disableBlend();
 184             BlockPos playerPos = new BlockPos(playerEntity.posX, playerEntity.posY, playerEntity.posZ);
 185             BlockPos.getAllInBox(playerPos.add(-reach, -reach, -reach), playerPos.add(reach, reach, reach)).forEach(pos -> {
 186                 Biome biome = world.getBiome(pos);
 187                 if (biome.getSpawningChance() > 0 && !biome.getSpawns(EntityClassification.MONSTER).isEmpty()) {
 188                     CrossType type = LightOverlay.getCrossType(pos, world, playerEntity);
 189                     if (type != CrossType.NONE) {
 190                         VoxelShape shape = world.getBlockState(pos).getCollisionShape(world, pos);
 191                         Color color = type == CrossType.RED ? Color.RED : Color.YELLOW;
 192                         LightOverlay.renderCross(world, pos, color, playerEntity);
 193                     }
 194                 }
 195             });
 196             GlStateManager.enableBlend();
 197             GlStateManager.enableTexture();
 198         }
 199     }
 200
 201     private KeyBinding registerKeybind(ResourceLocation resourceLocation, InputMappings.Type type, int keyCode, String category) {
 202         KeyBinding keyBinding = new KeyBinding("key." + resourceLocation.getNamespace() + "." + resourceLocation.getPath(), KeyConflictContext.IN_GAME, KeyModifier.NONE, type, keyCode, category);
 203         ClientRegistry.registerKeyBinding(keyBinding);
 204         return keyBinding;
 205     }
 206
 207     private void loadConfig(File file) {
 208         try {
 209             if (!file.exists() || !file.canRead())
 210                 saveConfig(file);
 211             FileInputStream fis = new FileInputStream(file);
 212             Properties properties = new Properties();
 213             properties.load(fis);
 214             fis.close();
 215             for(Map.Entry<Object, Object> entry : properties.entrySet()) {
 216                 if (entry.getKey() instanceof String && entry.getValue() instanceof String) {
 217                     String key = (String) entry.getKey();
 218                     String value = (String) entry.getValue();
 219                     if (key.equals("reach")) {
 220                         try {
 221                             reach = Integer.valueOf(value);
 222                         } catch (NumberFormatException e) {
 223                             e.printStackTrace();
 224                             reach = 12;
 225                         }
 226                     } else if (key.equals("lineWidth")) {
 227                         try {
 228                             lineWidth = Float.valueOf(value);
 229                         } catch (NumberFormatException e) {
 230                             e.printStackTrace();
 231                             lineWidth = 1.0F;
 232                         }
 233                     }
 234                 }
 235             }
 236             saveConfig(file);
 237         } catch (Exception e) {
 238             e.printStackTrace();
 239             reach = 12;
 240             lineWidth = 1.0F;
 241         }
 242     }
 243
 244     private void saveConfig(File file) throws IOException {
 245         FileOutputStream fos = new FileOutputStream(file, false);
 246         fos.write(("reach=" + String.valueOf(reach)).getBytes());
 247         fos.write("\n".getBytes());
 248         fos.write(("lineWidth=" + FORMAT.format(lineWidth)).getBytes());
 249         fos.close();
 250     }
 251
 252     private static enum CrossType {
 253         YELLOW,
 254         RED,
 255         NONE
 256     }
 257
 258 }