src/main/java/me/shedaniel/lightoverlay/LightOverlayClient.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.client.event.InputEvent;
  30 import net.minecraftforge.client.event.RenderWorldLastEvent;
  31 import net.minecraftforge.client.settings.KeyConflictContext;
  32 import net.minecraftforge.client.settings.KeyModifier;
  33 import net.minecraftforge.common.MinecraftForge;
  34 import net.minecraftforge.eventbus.api.SubscribeEvent;
  35 import net.minecraftforge.fml.DistExecutor;
  36 import net.minecraftforge.fml.client.registry.ClientRegistry;
  37
  38 import java.io.File;
  39 import java.io.FileInputStream;
  40 import java.io.FileOutputStream;
  41 import java.io.IOException;
  42 import java.text.DecimalFormat;
  43 import java.util.Properties;
  44
  45 public class LightOverlayClient {
  46
  47     static final DecimalFormat FORMAT = new DecimalFormat("#.#");
  48     private static final String KEYBIND_CATEGORY = "key.lightoverlay-forge.category";
  49     private static final ResourceLocation ENABLE_OVERLAY_KEYBIND = new ResourceLocation("lightoverlay-forge", "enable_overlay");
  50     private static final ResourceLocation INCREASE_REACH_KEYBIND = new ResourceLocation("lightoverlay-forge", "increase_reach");
  51     private static final ResourceLocation DECREASE_REACH_KEYBIND = new ResourceLocation("lightoverlay-forge", "decrease_reach");
  52     private static final ResourceLocation INCREASE_LINE_WIDTH_KEYBIND = new ResourceLocation("lightoverlay-forge", "increase_line_width");
  53     private static final ResourceLocation DECREASE_LINE_WIDTH_KEYBIND = new ResourceLocation("lightoverlay-forge", "decrease_line_width");
  54     static int reach = 7;
  55     static EntityType<Entity> testingEntityType;
  56     static float lineWidth = 1.0F;
  57     static int yellowColor = 0xFFFF00, redColor = 0xFF0000;
  58     static File configFile = new File(new File(Minecraft.getInstance().gameDir, "config"), "lightoverlay.properties");
  59     private static KeyBinding enableOverlay, increaseReach, decreaseReach, increaseLineWidth, decreaseLineWidth;
  60     private static boolean enabled = false;
  61
  62     public static void register() {
  63         // Load Config
  64         loadConfig(configFile);
  65
  66         // Setup
  67         testingEntityType = EntityType.Builder.create(EntityClassification.MONSTER).size(0f, 0f).disableSerialization().build(null);
  68         enableOverlay = registerKeybind(ENABLE_OVERLAY_KEYBIND, InputMappings.Type.KEYSYM, 296, KEYBIND_CATEGORY);
  69         increaseReach = registerKeybind(INCREASE_REACH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
  70         decreaseReach = registerKeybind(DECREASE_REACH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
  71         increaseLineWidth = registerKeybind(INCREASE_LINE_WIDTH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
  72         decreaseLineWidth = registerKeybind(DECREASE_LINE_WIDTH_KEYBIND, InputMappings.Type.KEYSYM, -1, KEYBIND_CATEGORY);
  73         MinecraftForge.EVENT_BUS.register(LightOverlayClient.class);
  74
  75         try {
  76             DistExecutor.runWhenOn(Dist.CLIENT, () -> () -> LightOverlayCloth.register());
  77         } catch (Exception e) {
  78             e.printStackTrace();
  79         }
  80     }
  81
  82     public static CrossType getCrossType(BlockPos pos, World world, PlayerEntity playerEntity) {
  83         BlockState blockBelowState = world.getBlockState(pos.down());
  84         BlockState blockUpperState = world.getBlockState(pos);
  85         VoxelShape upperCollisionShape = blockUpperState.getCollisionShape(world, pos, ISelectionContext.forEntity(playerEntity));
  86         if (!blockUpperState.getFluidState().isEmpty())
  87             return CrossType.NONE;
  88         /* WorldEntitySpawner.func_222266_a */
  89         // Check if the outline is full
  90         if (Block.doesSideFillSquare(upperCollisionShape, Direction.UP))
  91             return CrossType.NONE;
  92         // Check if there is power
  93         if (blockUpperState.canProvidePower())
  94             return CrossType.NONE;
  95         // Check if the collision has a bump
  96         if (upperCollisionShape.getEnd(Direction.Axis.Y) > 0)
  97             return CrossType.NONE;
  98         if (blockUpperState.getBlock().isIn(BlockTags.RAILS))
  99             return CrossType.NONE;
 100         // Check block state allow spawning (excludes bedrock and barriers automatically)
 101         if (!blockBelowState.canEntitySpawn(world, pos.down(), testingEntityType))
 102             return CrossType.NONE;
 103         if (world.getLightFor(LightType.BLOCK, pos) >= 8)
 104             return CrossType.NONE;
 105         if (world.getLightFor(LightType.SKY, pos) >= 8)
 106             return CrossType.YELLOW;
 107         return CrossType.RED;
 108     }
 109
 110     public static void renderCross(World world, BlockPos pos, int color, PlayerEntity entity) {
 111         ActiveRenderInfo info = Minecraft.getInstance().gameRenderer.getActiveRenderInfo();
 112         GlStateManager.lineWidth(lineWidth);
 113         GlStateManager.depthMask(false);
 114         GlStateManager.disableTexture();
 115         Tessellator tessellator = Tessellator.getInstance();
 116         BufferBuilder buffer = tessellator.getBuffer();
 117         double d0 = info.getProjectedView().x;
 118         double d1 = info.getProjectedView().y - .005D;
 119         VoxelShape upperOutlineShape = world.getBlockState(pos).getShape(world, pos, ISelectionContext.forEntity(entity));
 120         if (!upperOutlineShape.isEmpty())
 121             d1 -= upperOutlineShape.getEnd(Direction.Axis.Y);
 122         double d2 = info.getProjectedView().z;
 123
 124         buffer.begin(1, DefaultVertexFormats.POSITION_COLOR);
 125         int red = (color >> 16) & 255;
 126         int green = (color >> 8) & 255;
 127         int blue = color & 255;
 128         buffer.pos(pos.getX() + .01 - d0, pos.getY() - d1, pos.getZ() + .01 - d2).color(red, green, blue, 255).endVertex();
 129         buffer.pos(pos.getX() - .01 + 1 - d0, pos.getY() - d1, pos.getZ() - .01 + 1 - d2).color(red, green, blue, 255).endVertex();
 130         buffer.pos(pos.getX() - .01 + 1 - d0, pos.getY() - d1, pos.getZ() + .01 - d2).color(red, green, blue, 255).endVertex();
 131         buffer.pos(pos.getX() + .01 - d0, pos.getY() - d1, pos.getZ() - .01 + 1 - d2).color(red, green, blue, 255).endVertex();
 132         tessellator.draw();
 133         GlStateManager.depthMask(true);
 134         GlStateManager.enableTexture();
 135     }
 136
 137     @SubscribeEvent(receiveCanceled = true)
 138     public static void handleInput(InputEvent.KeyInputEvent event) {
 139         if (enableOverlay.isPressed())
 140             enabled = !enabled;
 141         if (increaseReach.isPressed()) {
 142             if (reach < 50)
 143                 reach++;
 144             try {
 145                 saveConfig(configFile);
 146             } catch (IOException e) {
 147                 e.printStackTrace();
 148             }
 149             Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_reach", reach), false);
 150         }
 151         if (decreaseReach.isPressed()) {
 152             if (reach > 1)
 153                 reach--;
 154             try {
 155                 saveConfig(configFile);
 156             } catch (IOException e) {
 157                 e.printStackTrace();
 158             }
 159             Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_reach", reach), false);
 160         }
 161         if (increaseLineWidth.isPressed()) {
 162             if (lineWidth < 7)
 163                 lineWidth += 0.1f;
 164             try {
 165                 saveConfig(configFile);
 166             } catch (IOException e) {
 167                 e.printStackTrace();
 168             }
 169             Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_line_width", FORMAT.format(lineWidth)), false);
 170         }
 171         if (decreaseLineWidth.isPressed()) {
 172             if (lineWidth > 1)
 173                 lineWidth -= 0.1F;
 174             try {
 175                 saveConfig(configFile);
 176             } catch (IOException e) {
 177                 e.printStackTrace();
 178             }
 179             Minecraft.getInstance().player.sendStatusMessage(new TranslationTextComponent("text.lightoverlay-forge.current_line_width", FORMAT.format(lineWidth)), false);
 180         }
 181     }
 182
 183     @SubscribeEvent
 184     public static void renderWorldLast(RenderWorldLastEvent event) {
 185         if (LightOverlayClient.enabled) {
 186             Minecraft client = Minecraft.getInstance();
 187             ClientPlayerEntity playerEntity = client.player;
 188             World world = client.world;
 189             GlStateManager.disableTexture();
 190             GlStateManager.disableBlend();
 191             BlockPos playerPos = new BlockPos(playerEntity.posX, playerEntity.posY, playerEntity.posZ);
 192             BlockPos.getAllInBox(playerPos.add(-reach, -reach, -reach), playerPos.add(reach, reach, reach)).forEach(pos -> {
 193                 Biome biome = world.getBiome(pos);
 194                 if (biome.getSpawningChance() > 0 && !biome.getSpawns(EntityClassification.MONSTER).isEmpty()) {
 195                     CrossType type = LightOverlayClient.getCrossType(pos, world, playerEntity);
 196                     if (type != CrossType.NONE) {
 197                         VoxelShape shape = world.getBlockState(pos).getCollisionShape(world, pos);
 198                         int color = type == CrossType.RED ? redColor : yellowColor;
 199                         LightOverlayClient.renderCross(world, pos, color, playerEntity);
 200                     }
 201                 }
 202             });
 203             GlStateManager.enableBlend();
 204             GlStateManager.enableTexture();
 205         }
 206     }
 207
 208     private static KeyBinding registerKeybind(ResourceLocation resourceLocation, InputMappings.Type type, int keyCode, String category) {
 209         KeyBinding keyBinding = new KeyBinding("key." + resourceLocation.getNamespace() + "." + resourceLocation.getPath(), KeyConflictContext.IN_GAME, KeyModifier.NONE, type, keyCode, category);
 210         ClientRegistry.registerKeyBinding(keyBinding);
 211         return keyBinding;
 212     }
 213
 214     static void loadConfig(File file) {
 215         try {
 216             redColor = 0xFF0000;
 217             yellowColor = 0xFFFF00;
 218             if (!file.exists() || !file.canRead())
 219                 saveConfig(file);
 220             FileInputStream fis = new FileInputStream(file);
 221             Properties properties = new Properties();
 222             properties.load(fis);
 223             fis.close();
 224             reach = Integer.parseInt((String) properties.computeIfAbsent("reach", a -> "7"));
 225             lineWidth = Float.valueOf((String) properties.computeIfAbsent("lineWidth", a -> "1"));
 226             {
 227                 int r, g, b;
 228                 r = Integer.parseInt((String) properties.computeIfAbsent("yellowColorRed", a -> "255"));
 229                 g = Integer.parseInt((String) properties.computeIfAbsent("yellowColorGreen", a -> "255"));
 230                 b = Integer.parseInt((String) properties.computeIfAbsent("yellowColorBlue", a -> "0"));
 231                 yellowColor = (r << 16) + (g << 8) + b;
 232             }
 233             {
 234                 int r, g, b;
 235                 r = Integer.parseInt((String) properties.computeIfAbsent("redColorRed", a -> "255"));
 236                 g = Integer.parseInt((String) properties.computeIfAbsent("redColorGreen", a -> "0"));
 237                 b = Integer.parseInt((String) properties.computeIfAbsent("redColorBlue", a -> "0"));
 238                 redColor = (r << 16) + (g << 8) + b;
 239             }
 240             saveConfig(file);
 241         } catch (Exception e) {
 242             e.printStackTrace();
 243             reach = 7;
 244             lineWidth = 1.0F;
 245             redColor = 0xFF0000;
 246             yellowColor = 0xFFFF00;
 247             try {
 248                 saveConfig(file);
 249             } catch (IOException ex) {
 250                 ex.printStackTrace();
 251             }
 252         }
 253     }
 254
 255     static void saveConfig(File file) throws IOException {
 256         FileOutputStream fos = new FileOutputStream(file, false);
 257         fos.write("# Light Overlay Config".getBytes());
 258         fos.write("\n".getBytes());
 259         fos.write(("reach=" + reach).getBytes());
 260         fos.write("\n".getBytes());
 261         fos.write(("lineWidth=" + FORMAT.format(lineWidth)).getBytes());
 262         fos.write("\n".getBytes());
 263         fos.write(("yellowColorRed=" + ((yellowColor >> 16) & 255)).getBytes());
 264         fos.write("\n".getBytes());
 265         fos.write(("yellowColorGreen=" + ((yellowColor >> 8) & 255)).getBytes());
 266         fos.write("\n".getBytes());
 267         fos.write(("yellowColorBlue=" + (yellowColor & 255)).getBytes());
 268         fos.write("\n".getBytes());
 269         fos.write(("redColorRed=" + ((redColor >> 16) & 255)).getBytes());
 270         fos.write("\n".getBytes());
 271         fos.write(("redColorGreen=" + ((redColor >> 8) & 255)).getBytes());
 272         fos.write("\n".getBytes());
 273         fos.write(("redColorBlue=" + (redColor & 255)).getBytes());
 274         fos.close();
 275     }
 276
 277     private static enum CrossType {
 278         YELLOW,
 279         RED,
 280         NONE
 281     }
 282
 283 }