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