1 files changed, 234 insertions, 0 deletions
diff --git a/src/main/java/io/github/moulberry/notenoughupdates/miscfeatures/NullzeeSphere.java b/src/main/java/io/github/moulberry/notenoughupdates/miscfeatures/NullzeeSphere.java
new file mode 100644
index 00000000..7e297c58
--- /dev/null
+++ b/src/main/java/io/github/moulberry/notenoughupdates/miscfeatures/NullzeeSphere.java
@@ -0,0 +1,234 @@
+package io.github.moulberry.notenoughupdates.miscfeatures;
+
+import io.github.moulberry.notenoughupdates.util.ReverseWorldRenderer;
+import io.github.moulberry.notenoughupdates.util.SpecialColour;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.entity.EntityPlayerSP;
+import net.minecraft.client.renderer.GlStateManager;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.client.renderer.vertex.VertexFormat;
+import net.minecraft.client.renderer.vertex.VertexFormatElement;
+import net.minecraft.entity.Entity;
+import net.minecraft.util.AxisAlignedBB;
+import net.minecraft.util.BlockPos;
+import net.minecraftforge.client.event.RenderWorldLastEvent;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import net.minecraftforge.fml.common.gameevent.TickEvent;
+import org.lwjgl.opengl.GL11;
+
+import java.awt.*;
+import java.nio.ByteBuffer;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class NullzeeSphere {
+
+    public static boolean enabled = false;
+    public static float size = 20;
+    public static BlockPos centerPos = new BlockPos(0, 0, 0);
+
+    public static ReverseWorldRenderer overlayVBO = null;
+
+    public ReverseWorldRenderer getOverlayVBO() {
+        if(overlayVBO != null) return overlayVBO;
+
+        EntityPlayerSP p = Minecraft.getMinecraft().thePlayer;
+        if(p == null) return null;
+
+        //per vertex = 6
+        //per size = 4
+        //per block = 8
+        //total per block = 196
+
+        Set<BlockPos> circleOffsets = getCircleOffsets(size);
+
+        ReverseWorldRenderer worldRenderer = new ReverseWorldRenderer(196*circleOffsets.size());
+        worldRenderer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_COLOR);
+
+        String col = SpecialColour.special(0, 180, 0xffff9900);
+        for(BlockPos offset : circleOffsets) {
+            BlockPos overlayPos = new BlockPos(offset.getX(), offset.getY(), offset.getZ());
+
+            AxisAlignedBB bb = new AxisAlignedBB(
+                    overlayPos.getX(),
+                    overlayPos.getY(),
+                    overlayPos.getZ(),
+                    overlayPos.getX()+1,
+                    overlayPos.getY()+1,
+                    overlayPos.getZ()+1
+            ).expand(0.001f, 0.001f, 0.001f);
+            uploadFilledBoundingBox(bb, 1f, col, worldRenderer);
+        }
+
+        overlayVBO = worldRenderer;
+        return overlayVBO;
+    }
+
+    public Set<BlockPos> getCircleOffsets(float radius) {
+        Set<BlockPos> circleOffsets = new HashSet<>();
+
+        int radiusI = (int)Math.ceil(radius)+1;
+        for(int x=-radiusI; x<=radiusI; x++) {
+            for(int y=-radiusI; y<=radiusI; y++) {
+                for(int z=-radiusI; z<=radiusI; z++) {
+                    float distSq = x*x + y*y + z*z;
+                    if(distSq >= (radius-0.5)*(radius-0.5) && distSq <= (radius+0.5)*(radius+0.5)) {
+                        circleOffsets.add(new BlockPos(x, y, z));
+                    }
+                }
+            }
+        }
+
+        return circleOffsets;
+    }
+
+    long lastUpdate = 0;
+
+    private static double posLastUpdateX;
+    private static double posLastUpdateY;
+    private static double posLastUpdateZ;
+
+    @SubscribeEvent
+    public void onTick(TickEvent.ClientTickEvent event) {
+        if(!enabled) return;
+
+        EntityPlayerSP p = Minecraft.getMinecraft().thePlayer;
+        if(p == null) return;
+
+        if(event.phase == TickEvent.Phase.START) {
+            double dX = p.posX - posLastUpdateX;
+            double dY = p.posY - posLastUpdateY;
+            double dZ = p.posZ - posLastUpdateZ;
+
+            if(dX*dX + dY*dY + dZ*dZ < 1) {
+                return;
+            }
+
+            posLastUpdateX = p.posX;
+            posLastUpdateY = p.posY;
+            posLastUpdateZ = p.posZ;
+
+            long currentTime = System.currentTimeMillis();
+            if(currentTime - lastUpdate < 250) {
+                return;
+            }
+            lastUpdate = currentTime;
+
+            ReverseWorldRenderer worldRenderer = getOverlayVBO();
+            if(worldRenderer != null) {
+                worldRenderer.setTranslation(0, 0,0 );
+                worldRenderer.sortVertexData(
+                        (float)p.posX-centerPos.getX(),
+                        (float)p.posY-centerPos.getY(),
+                        (float)p.posZ-centerPos.getZ());
+
+            }
+        }
+    }
+
+    @SubscribeEvent
+    public void onRenderLast(RenderWorldLastEvent event) {
+        if(!enabled) return;
+
+        Entity viewer = Minecraft.getMinecraft().getRenderViewEntity();
+        double viewerX = viewer.lastTickPosX + (viewer.posX - viewer.lastTickPosX) * event.partialTicks;
+        double viewerY = viewer.lastTickPosY + (viewer.posY - viewer.lastTickPosY) * event.partialTicks;
+        double viewerZ = viewer.lastTickPosZ + (viewer.posZ - viewer.lastTickPosZ) * event.partialTicks;
+
+        GlStateManager.enableBlend();
+        GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0);
+        GlStateManager.disableTexture2D();
+
+        GlStateManager.translate(-viewerX, -viewerY, -viewerZ);
+
+        GL11.glPolygonOffset(5, 5);
+        ReverseWorldRenderer worldRenderer = getOverlayVBO();
+        if(worldRenderer != null && worldRenderer.getVertexCount() > 0) {
+            GlStateManager.translate(centerPos.getX(), centerPos.getY(), centerPos.getZ());
+
+            VertexFormat vertexformat = worldRenderer.getVertexFormat();
+            int stride = vertexformat.getNextOffset();
+            ByteBuffer bytebuffer = worldRenderer.getByteBuffer();
+            List<VertexFormatElement> list = vertexformat.getElements();
+
+            for (int index = 0; index < list.size(); index++) {
+                VertexFormatElement vertexformatelement = list.get(index);
+                vertexformatelement.getUsage().preDraw(vertexformat, index, stride, bytebuffer);
+            }
+
+            GL11.glDrawArrays(worldRenderer.getDrawMode(), 0, worldRenderer.getVertexCount());
+
+            for (int index = 0; index < list.size(); index++) {
+                VertexFormatElement vertexformatelement = list.get(index);
+                vertexformatelement.getUsage().postDraw(vertexformat, index, stride, bytebuffer);
+            }
+
+            GlStateManager.translate(-centerPos.getX(), -centerPos.getY(), -centerPos.getZ());
+        }
+        GL11.glPolygonOffset(0, 0);
+
+        GlStateManager.translate(viewerX, viewerY, viewerZ);
+
+        GlStateManager.enableTexture2D();
+    }
+
+    public static void uploadFilledBoundingBox(AxisAlignedBB p_181561_0_, float alpha, String special, ReverseWorldRenderer worldrenderer) {
+        Color c = new Color(SpecialColour.specialToChromaRGB(special), true);
+
+        //vertical
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.minY, p_181561_0_.minZ)
+                .color(c.getRed()/255f, c.getGreen()/255f, c.getBlue()/255f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.minY, p_181561_0_.minZ)
+                .color(c.getRed()/255f, c.getGreen()/255f, c.getBlue()/255f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.minY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f, c.getGreen()/255f, c.getBlue()/255f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.minY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f, c.getGreen()/255f, c.getBlue()/255f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.maxY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f, c.getGreen()/255f, c.getBlue()/255f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.maxY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f, c.getGreen()/255f, c.getBlue()/255f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.maxY, p_181561_0_.minZ)
+                .color(c.getRed()/255f, c.getGreen()/255f, c.getBlue()/255f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.maxY, p_181561_0_.minZ)
+                .color(c.getRed()/255f, c.getGreen()/255f, c.getBlue()/255f, c.getAlpha()/255f*alpha).endVertex();
+
+        //x
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.minY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f*0.8f, c.getGreen()/255f*0.8f, c.getBlue()/255f*0.8f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.maxY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f*0.8f, c.getGreen()/255f*0.8f, c.getBlue()/255f*0.8f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.maxY, p_181561_0_.minZ)
+                .color(c.getRed()/255f*0.8f, c.getGreen()/255f*0.8f, c.getBlue()/255f*0.8f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.minY, p_181561_0_.minZ)
+                .color(c.getRed()/255f*0.8f, c.getGreen()/255f*0.8f, c.getBlue()/255f*0.8f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.minY, p_181561_0_.minZ)
+                .color(c.getRed()/255f*0.8f, c.getGreen()/255f*0.8f, c.getBlue()/255f*0.8f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.maxY, p_181561_0_.minZ)
+                .color(c.getRed()/255f*0.8f, c.getGreen()/255f*0.8f, c.getBlue()/255f*0.8f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.maxY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f*0.8f, c.getGreen()/255f*0.8f, c.getBlue()/255f*0.8f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.minY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f*0.8f, c.getGreen()/255f*0.8f, c.getBlue()/255f*0.8f, c.getAlpha()/255f*alpha).endVertex();
+
+        //z
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.maxY, p_181561_0_.minZ)
+                .color(c.getRed()/255f*0.9f, c.getGreen()/255f*0.9f, c.getBlue()/255f*0.9f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.maxY, p_181561_0_.minZ)
+                .color(c.getRed()/255f*0.9f, c.getGreen()/255f*0.9f, c.getBlue()/255f*0.9f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.minY, p_181561_0_.minZ)
+                .color(c.getRed()/255f*0.9f, c.getGreen()/255f*0.9f, c.getBlue()/255f*0.9f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.minY, p_181561_0_.minZ)
+                .color(c.getRed()/255f*0.9f, c.getGreen()/255f*0.9f, c.getBlue()/255f*0.9f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.minY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f*0.9f, c.getGreen()/255f*0.9f, c.getBlue()/255f*0.9f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.minY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f*0.9f, c.getGreen()/255f*0.9f, c.getBlue()/255f*0.9f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.maxX, p_181561_0_.maxY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f*0.9f, c.getGreen()/255f*0.9f, c.getBlue()/255f*0.9f, c.getAlpha()/255f*alpha).endVertex();
+        worldrenderer.pos(p_181561_0_.minX, p_181561_0_.maxY, p_181561_0_.maxZ)
+                .color(c.getRed()/255f*0.9f, c.getGreen()/255f*0.9f, c.getBlue()/255f*0.9f, c.getAlpha()/255f*alpha).endVertex();
+    }
+
+}