Testing a new block preview

src/main/java/nl/requios/effortlessbuilding/BuildConfig.java

@@ -47,7 +47,7 @@ public class BuildConfig {
     }
 
     public static class Visuals {
-        @Comment({"Shows a white block outline for the block you manually place,",
+        @Comment({"Shows a block preview for the block you manually place,",
                  "in addition to blocks placed by the mirror or array."})
         public boolean showOutlineOnCurrentBlock = false;
     }

src/main/java/nl/requios/effortlessbuilding/helper/RenderHelper.java

@@ -1,20 +1,26 @@
 package nl.requios.effortlessbuilding.helper;
 
+import net.minecraft.block.Block;
+import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.*;
-import net.minecraft.client.renderer.RenderGlobal;
+import net.minecraft.client.renderer.texture.TextureMap;
-import net.minecraft.client.renderer.Tessellator;
 import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemBlock;
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.ItemTool;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.EnumHand;
 import net.minecraft.util.math.*;
 import net.minecraftforge.client.event.RenderWorldLastEvent;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import net.minecraftforge.fml.relauncher.Side;
 import nl.requios.effortlessbuilding.*;
+import nl.requios.effortlessbuilding.item.ItemRandomizerBag;
 import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL14;
 import org.lwjgl.util.Color;
 
 @Mod.EventBusSubscriber(Side.CLIENT)
@@ -115,17 +121,29 @@ public class RenderHelper {
 
         }
 
-        //Render block outlines
+        //Render block previews
         RayTraceResult objectMouseOver = Minecraft.getMinecraft().objectMouseOver;
         //Checking for null is necessary! Even in vanilla when looking down ladders it is occasionally null (instead of Type MISS)
         if (objectMouseOver != null && objectMouseOver.typeOfHit == RayTraceResult.Type.BLOCK)
         {
             BlockPos blockPos = objectMouseOver.getBlockPos();
+            ItemStack stack = ItemStack.EMPTY;
+            ItemStack mainhand = player.getHeldItemMainhand();
+            IBlockState blockState = null;
+            if (mainhand.getItem() instanceof ItemBlock) {
+                stack = mainhand;
+                Block block = ((ItemBlock) stack.getItem()).getBlock();
+                Vec3d hitVec = objectMouseOver.hitVec;
+                hitVec = new Vec3d(Math.abs(hitVec.x - ((int) hitVec.x)), Math.abs(hitVec.y - ((int) hitVec.y)), Math.abs(hitVec.z - ((int) hitVec.z)));
+                blockState = block.getStateForPlacement(player.world, blockPos, objectMouseOver.sideHit,
+                        ((float) hitVec.x), ((float) hitVec.y), ((float) hitVec.z), stack.getMetadata(), player, EnumHand.MAIN_HAND);
+            }
+            if (mainhand.getItem() instanceof ItemRandomizerBag) {
+                //TODO figure this out
+            }
+            //TODO check offhand
 
             //Check if tool (or none) in hand
-            ItemStack mainhand = player.getHeldItemMainhand();
-            //ItemStack offhand = player.getHeldItemOffhand();
-            //boolean noneInHand = mainhand.isEmpty() && (offhand.isEmpty() || offhand.getItem() instanceof ItemTool);
             boolean toolInHand = !mainhand.isEmpty() && mainhand.getItem() instanceof ItemTool;
             if (!buildSettings.doQuickReplace() && !toolInHand) {
                 blockPos = blockPos.offset(objectMouseOver.sideHit);
@@ -143,6 +161,26 @@ public class RenderHelper {
                 RenderHelper.renderBlockOutline(blockPos);
             }
 
+            //TODO testing
+            if (blockState != null) {
+                BlockRendererDispatcher dispatcher = Minecraft.getMinecraft().getBlockRendererDispatcher();
+                GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
+                GlStateManager.pushMatrix();//Push matrix again just because
+                GL11.glEnable(GL11.GL_CULL_FACE);
+                GL11.glEnable(GL11.GL_TEXTURE_2D);
+                Minecraft.getMinecraft().renderEngine.bindTexture(TextureMap.LOCATION_BLOCKS_TEXTURE);
+                GlStateManager.enableBlend();
+                GlStateManager.blendFunc(GL11.GL_CONSTANT_ALPHA, GL11.GL_ONE_MINUS_CONSTANT_ALPHA);
+                GlStateManager.translate(blockPos.getX(), blockPos.getY(), blockPos.getZ());
+                GlStateManager.rotate(-90.0F, 0.0F, 1.0F, 0.0F);
+                GlStateManager.translate(-0.005f, -0.005f, 0.005f);
+                GlStateManager.scale(1.01f, 1.01f, 1.01f);
+                GL14.glBlendColor(1F, 1F, 1F, 0.6f);
+                dispatcher.renderBlockBrightness(blockState, 1f);
+                GlStateManager.popMatrix();
+                GL11.glPopAttrib();
+            }
+
             //Mirror
             if (m != null && m.enabled && (m.mirrorX || m.mirrorY || m.mirrorZ) &&
                     !(blockPos.getX() + 0.5 < m.position.x - m.radius) && !(blockPos.getX() + 0.5 > m.position.x + m.radius) &&

src/main/java/nl/requios/effortlessbuilding/network/QuickReplaceMessage.java

@@ -71,7 +71,6 @@ public class QuickReplaceMessage implements IMessage {
                 //Send back your info
                 return new QuickReplaceMessage(ClientProxy.previousLookAt);
 
-                //TODO break block then return
 //                Minecraft.getMinecraft().addScheduledTask(() -> {
 //                    EffortlessBuilding.packetHandler.sendToServer(new QuickReplaceMessage(Minecraft.getMinecraft().objectMouseOver));
 //                });