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NotEnoughItems/src/main/java/codechicken/nei/WorldOverlayRenderer.java
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package codechicken.nei;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EnumCreatureType;
import net.minecraft.entity.passive.EntityPig;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.ChatComponentText;
import net.minecraft.world.EnumSkyBlock;
import net.minecraft.world.SpawnerAnimals;
import net.minecraft.world.World;
import net.minecraft.world.biome.BiomeGenBase;
import net.minecraft.world.chunk.Chunk;
import org.lwjgl.opengl.GL11;
import codechicken.lib.math.MathHelper;
import codechicken.nei.KeyManager.IKeyStateTracker;
import cpw.mods.fml.relauncher.ReflectionHelper;
public class WorldOverlayRenderer implements IKeyStateTracker {
public static int chunkOverlay = 0;
public static int mobOverlay = 0;
private static byte[] mobSpawnCache;
private static long mobOverlayUpdateTime;
private static String oregenPatternName;
public static void reset() {
mobOverlay = 0;
chunkOverlay = 0;
oregenPatternName = null;
}
@Override
public void tickKeyStates() {
if (Minecraft.getMinecraft().currentScreen != null) return;
if (KeyManager.keyStates.get("world.moboverlay").down) mobOverlay = (mobOverlay + 1) % 2;
if (KeyManager.keyStates.get("world.chunkoverlay").down) {
chunkOverlay = (chunkOverlay + 1) % (NEIModContainer.isGT5Loaded() ? 4 : 3);
// 0-2 (or 3 with gt)
NEIClientUtils.printChatMessage(
new ChatComponentText(NEIClientUtils.translate("chat.chunkoverlay." + chunkOverlay)));
}
}
public static void render(float frame) {
GL11.glPushMatrix();
Entity entity = Minecraft.getMinecraft().renderViewEntity;
double interpPosX = entity.lastTickPosX + (entity.posX - entity.lastTickPosX) * frame;
double interpPosY = entity.lastTickPosY + (entity.posY - entity.lastTickPosY) * frame;
double interpPosZ = entity.lastTickPosZ + (entity.posZ - entity.lastTickPosZ) * frame;
int intOffsetX = (int) interpPosX;
int intOffsetY = (int) interpPosY;
int intOffsetZ = (int) interpPosZ;
GL11.glTranslated(-interpPosX + intOffsetX, -interpPosY + intOffsetY, -interpPosZ + intOffsetZ);
renderChunkBounds(entity, intOffsetX, intOffsetY, intOffsetZ);
renderMobSpawnOverlay(entity, intOffsetX, intOffsetY, intOffsetZ);
GL11.glPopMatrix();
}
private static void buildMobSpawnOverlay(Entity entity) {
if (mobSpawnCache == null) {
mobSpawnCache = new byte[33 * 33 * 33]; // 35kB
}
World world = entity.worldObj;
int x1 = (int) entity.posX;
int z1 = (int) entity.posZ;
int y1 = (int) MathHelper.clip(entity.posY, 16, world.getHeight() - 16);
for (int i = 0; i <= 32; i++) {
int x = x1 - 16 + i;
for (int j = 0; j <= 32; j++) {
int z = z1 - 16 + j;
int bufIndex = (i * 33 + j) * 33;
Chunk chunk = world.getChunkFromBlockCoords(x, z);
BiomeGenBase biome = world.getBiomeGenForCoords(x, z);
if (biome.getSpawnableList(EnumCreatureType.monster).isEmpty() || biome.getSpawningChance() <= 0) {
mobSpawnCache[bufIndex] = -1;
continue;
}
int maxHeight = chunk.worldObj.getHeightValue(x, z);
for (int k = 0; k <= 32; k++) {
int y = y1 - 16 + k;
if (y > maxHeight) {
mobSpawnCache[bufIndex + k] = -1;
break;
}
mobSpawnCache[bufIndex + k] = getSpawnMode(chunk, x, y, z);
}
}
}
}
private static void renderMobSpawnOverlay(Entity entity, int intOffsetX, int intOffsetY, int intOffsetZ) {
if (mobOverlay == 0) {
if (mobSpawnCache != null) {
mobSpawnCache = null;
}
return;
}
long worldTime = entity.worldObj.getTotalWorldTime();
if (mobSpawnCache == null || mobOverlayUpdateTime != worldTime) {
mobOverlayUpdateTime = worldTime;
buildMobSpawnOverlay(entity);
}
GL11.glDisable(GL11.GL_TEXTURE_2D);
GL11.glEnable(GL11.GL_BLEND);
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
GL11.glDisable(GL11.GL_LIGHTING);
GL11.glLineWidth(1.5F);
int curSpawnMode = 2;
World world = entity.worldObj;
int x1 = (int) entity.posX - intOffsetX;
int z1 = (int) entity.posZ - intOffsetZ;
int y1 = (int) MathHelper.clip(entity.posY, 16, world.getHeight() - 16) - intOffsetY;
final Tessellator tess = Tessellator.instance;
tess.startDrawing(GL11.GL_LINES);
tess.setColorOpaque(255, 0, 0);
for (int i = 0; i <= 32; i++) {
int x = x1 - 16 + i;
for (int j = 0; j <= 32; j++) {
int z = z1 - 16 + j;
int cacheIndex = (i * 33 + j) * 33;
for (int k = 0; k <= 32; k++) {
int y = y1 - 16 + k;
int spawnMode = mobSpawnCache[cacheIndex + k];
if (spawnMode == 0) {
continue;
} else if (spawnMode == -1) {
break;
}
if (spawnMode != curSpawnMode) {
if (spawnMode == 1) {
tess.setColorOpaque(255, 255, 0);
} else {
tess.setColorOpaque(255, 0, 0);
}
curSpawnMode = spawnMode;
}
tess.addVertex(x, y + 0.02, z);
tess.addVertex(x + 1, y + 0.02, z + 1);
tess.addVertex(x + 1, y + 0.02, z);
tess.addVertex(x, y + 0.02, z + 1);
}
}
}
tess.draw();
GL11.glEnable(GL11.GL_LIGHTING);
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glDisable(GL11.GL_BLEND);
}
private static final Entity dummyEntity = new EntityPig(null);
private static final AxisAlignedBB aabb = AxisAlignedBB.getBoundingBox(0, 0, 0, 0, 0, 0);
private static byte getSpawnMode(Chunk chunk, int x, int y, int z) {
if (chunk.getSavedLightValue(EnumSkyBlock.Block, x & 15, y, z & 15) >= 8
|| !SpawnerAnimals.canCreatureTypeSpawnAtLocation(EnumCreatureType.monster, chunk.worldObj, x, y, z)) {
return 0;
}
aabb.minX = x + 0.2;
aabb.maxX = x + 0.8;
aabb.minY = y + 0.01;
aabb.maxY = y + 1.8;
aabb.minZ = z + 0.2;
aabb.maxZ = z + 0.8;
if (!chunk.worldObj.getCollidingBoundingBoxes(dummyEntity, aabb).isEmpty()
|| chunk.worldObj.isAnyLiquid(aabb)) {
return 0;
}
return (byte) (chunk.getSavedLightValue(EnumSkyBlock.Sky, x & 15, y, z & 15) >= 8 ? 1 : 2);
}
private static void renderChunkBounds(Entity entity, int intOffsetX, int intOffsetY, int intOffsetZ) {
if (chunkOverlay == 0) return;
GL11.glDisable(GL11.GL_TEXTURE_2D);
GL11.glEnable(GL11.GL_BLEND);
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
GL11.glDisable(GL11.GL_LIGHTING);
GL11.glLineWidth(1.5F);
final Tessellator tess = Tessellator.instance;
tess.startDrawing(GL11.GL_LINES);
for (int cx = -4; cx <= 4; cx++) for (int cz = -4; cz <= 4; cz++) {
double x1 = ((entity.chunkCoordX + cx) << 4) - intOffsetX;
double z1 = ((entity.chunkCoordZ + cz) << 4) - intOffsetZ;
double x2 = x1 + 16;
double z2 = z1 + 16;
double dy = 128;
double y1 = Math.floor(entity.posY - dy / 2);
double y2 = y1 + dy;
if (y1 < 0) {
y1 = 0;
y2 = dy;
}
if (y1 > entity.worldObj.getHeight()) {
y2 = entity.worldObj.getHeight();
y1 = y2 - dy;
}
y1 -= intOffsetY;
y2 -= intOffsetY;
double dist = Math.pow(1.5, -(cx * cx + cz * cz));
tess.setColorRGBA_F(0.9F, 0, 0, (float) dist);
if (cx >= 0 && cz >= 0) {
tess.addVertex(x2, y1, z2);
tess.addVertex(x2, y2, z2);
}
if (cx >= 0 && cz <= 0) {
tess.addVertex(x2, y1, z1);
tess.addVertex(x2, y2, z1);
}
if (cx <= 0 && cz >= 0) {
tess.addVertex(x1, y1, z2);
tess.addVertex(x1, y2, z2);
}
if (cx <= 0 && cz <= 0) {
tess.addVertex(x1, y1, z1);
tess.addVertex(x1, y2, z1);
}
if (cx == 0 && cz == 0) {
if (chunkOverlay == 2) {
dy = 32;
y1 = Math.floor(entity.posY - dy / 2);
y2 = y1 + dy;
if (y1 < 0) {
y1 = 0;
y2 = dy;
}
if (y1 > entity.worldObj.getHeight()) {
y2 = entity.worldObj.getHeight();
y1 = y2 - dy;
}
y1 -= intOffsetY;
y2 -= intOffsetY;
tess.setColorRGBA_F(0, 0.9F, 0, 0.4F);
for (double y = (int) y1; y <= y2; y++) {
tess.addVertex(x2, y, z1);
tess.addVertex(x2, y, z2);
tess.addVertex(x1, y, z1);
tess.addVertex(x1, y, z2);
tess.addVertex(x1, y, z2);
tess.addVertex(x2, y, z2);
tess.addVertex(x1, y, z1);
tess.addVertex(x2, y, z1);
}
for (double h = 1; h <= 15; h++) {
tess.addVertex(x1 + h, y1, z1);
tess.addVertex(x1 + h, y2, z1);
tess.addVertex(x1 + h, y1, z2);
tess.addVertex(x1 + h, y2, z2);
tess.addVertex(x1, y1, z1 + h);
tess.addVertex(x1, y2, z1 + h);
tess.addVertex(x2, y1, z1 + h);
tess.addVertex(x2, y2, z1 + h);
}
} else if (chunkOverlay == 3) {
int gx1;
int gz1;
if (getOregenPatternName().equals("EQUAL_SPACING")) {
// gt oregen uses new regular pattern
gx1 = ((Math.floorDiv(entity.chunkCoordX, 3) * 3) << 4) - intOffsetX;
gz1 = ((Math.floorDiv(entity.chunkCoordZ, 3) * 3) << 4) - intOffsetZ;
} else {
// gt oregen uses old bugged pattern
gx1 = (((entity.chunkCoordX < 0 ? entity.chunkCoordX - 3 : entity.chunkCoordX) / 3 * 3) << 4)
- intOffsetX;
gz1 = (((entity.chunkCoordZ < 0 ? entity.chunkCoordZ - 3 : entity.chunkCoordZ) / 3 * 3) << 4)
- intOffsetZ;
if (entity.chunkCoordX < 0) {
gx1 += 16;
}
if (entity.chunkCoordZ < 0) {
gz1 += 16;
}
}
int gx2 = gx1 + 48;
int gz2 = gz1 + 48;
tess.setColorRGBA_F(0, 0.9F, 0, 0.4F);
for (double y = (int) y1; y <= y2; y++) {
tess.addVertex(gx2, y, gz1);
tess.addVertex(gx2, y, gz2);
tess.addVertex(gx1, y, gz1);
tess.addVertex(gx1, y, gz2);
tess.addVertex(gx1, y, gz2);
tess.addVertex(gx2, y, gz2);
tess.addVertex(gx1, y, gz1);
tess.addVertex(gx2, y, gz1);
}
for (double h = 4; h <= 44; h += 4) {
if (h % 16 == 0) {
continue;
}
tess.addVertex(gx1 + h, y1, gz1);
tess.addVertex(gx1 + h, y2, gz1);
tess.addVertex(gx1 + h, y1, gz2);
tess.addVertex(gx1 + h, y2, gz2);
tess.addVertex(gx1, y1, gz1 + h);
tess.addVertex(gx1, y2, gz1 + h);
tess.addVertex(gx2, y1, gz1 + h);
tess.addVertex(gx2, y2, gz1 + h);
}
tess.setColorRGBA_F(0, 0, 0.9F, 0.4F);
gx1 += 23;
gz1 += 23;
gx2 = gx1 + 1;
gz2 = gz1 + 1;
tess.addVertex(gx1, y1, gz1);
tess.addVertex(gx1, y2, gz1);
tess.addVertex(gx2, y1, gz1);
tess.addVertex(gx2, y2, gz1);
tess.addVertex(gx1, y1, gz2);
tess.addVertex(gx1, y2, gz2);
tess.addVertex(gx2, y1, gz2);
tess.addVertex(gx2, y2, gz2);
}
}
}
tess.draw();
GL11.glEnable(GL11.GL_LIGHTING);
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glDisable(GL11.GL_BLEND);
}
private static String getOregenPatternName() {
if (oregenPatternName == null) {
try {
final ClassLoader loader = WorldOverlayRenderer.class.getClassLoader();
final Class<?> gtWorldGenerator = ReflectionHelper
.getClass(loader, "gregtech.common.GTWorldgenerator", "gregtech.common.GT_Worldgenerator");
oregenPatternName = ((Enum<?>) gtWorldGenerator.getDeclaredField("oregenPattern").get(null)).name();
} catch (Exception ignored) {
oregenPatternName = "AXISSYMMETRICAL";
}
}
return oregenPatternName;
}
public static void load() {
KeyManager.trackers.add(new WorldOverlayRenderer());
}
}
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