MC [1.8] Render Entity on GuiMainScreen

[Flawn_]

Hello everyone, 

I want to render the Inventory Player to the main Menu but it makes problems.

 

Description: Initializing game

java.lang.NullPointerException: Initializing game
	at net.minecraft.client.gui.inventory.GuiInventory.drawEntityOnScreen(GuiInventory.java:103)
	at net.minecraft.client.gui.GuiMainMenu.initGui(GuiMainMenu.java:213)
	at net.minecraft.client.gui.GuiScreen.setWorldAndResolution(GuiScreen.java:556)
	at net.minecraft.client.Minecraft.displayGuiScreen(Minecraft.java:1011)
	at net.minecraft.client.Minecraft.startGame(Minecraft.java:575)
	at net.minecraft.client.Minecraft.run(Minecraft.java:402)
	at net.minecraft.client.main.Main.main(Main.java:114)
	at Start.main(Start.java:11)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at net.minecraft.client.gui.inventory.GuiInventory.drawEntityOnScreen(GuiInventory.java:103)
	at net.minecraft.client.gui.GuiMainMenu.initGui(GuiMainMenu.java:213)
	at net.minecraft.client.gui.GuiScreen.setWorldAndResolution(GuiScreen.java:556)
	at net.minecraft.client.Minecraft.displayGuiScreen(Minecraft.java:1011)
	at net.minecraft.client.Minecraft.startGame(Minecraft.java:575)

-- Initialization --
Details:
Stacktrace:
	at net.minecraft.client.Minecraft.run(Minecraft.java:402)
	at net.minecraft.client.main.Main.main(Main.java:114)
	at Start.main(Start.java:11)

-- System Details --
Details:
	Minecraft Version: 1.8
	Operating System: Mac OS X (x86_64) version 10.12.1
	Java Version: 1.8.0_91, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 870970032 bytes (830 MB) / 1038876672 bytes (990 MB) up to 1038876672 bytes (990 MB)
	JVM Flags: 3 total; -Xincgc -Xmx1024M -Xms1024M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: mcp
	LWJGL: 2.9.1
	OpenGL: Intel(R) Iris(TM) Graphics 6100 GL version 2.1 INTEL-10.20.23, Intel Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Definitely; Client brand changed to 'Cose'
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: English (US)
	Profiler Position: N/A (disabled)
#@!@# Game crashed! Crash report saved to: #@!@# /Users/nevinpeters/Documents/Cose/jars/./crash-reports/crash-2017-02-05_14.09.16-client.txt
AL lib: (EE) alc_cleanup: 1 device not closed

 

 

It makes Problems here:

 

public static void drawEntityOnScreen(int x, int y, int scale, float mouseX, float mouseY, EntityLivingBase entity)
    {
        GlStateManager.enableColorMaterial();
        GlStateManager.pushMatrix();
        GlStateManager.translate((float)x, (float)y, 50.0F);
        GlStateManager.scale((float)(-scale), (float)scale, (float)scale);
        GlStateManager.rotate(180.0F, 0.0F, 0.0F, 1.0F);
//here        float var6 = entity.renderYawOffset;
        float var7 = entity.rotationYaw;
        float var8 = entity.rotationPitch;
        float var9 = entity.prevRotationYawHead;
        float var10 = entity.rotationYawHead;
        GlStateManager.rotate(135.0F, 0.0F, 1.0F, 0.0F);
        RenderHelper.enableStandardItemLighting();
        GlStateManager.rotate(-135.0F, 0.0F, 1.0F, 0.0F);
        GlStateManager.rotate(-((float)Math.atan((double)(mouseY / 40.0F))) * 20.0F, 1.0F, 0.0F, 0.0F);
        entity.renderYawOffset = (float)Math.atan((double)(mouseX / 40.0F)) * 20.0F;
        entity.rotationYaw = (float)Math.atan((double)(mouseX / 40.0F)) * 40.0F;
        entity.rotationPitch = -((float)Math.atan((double)(mouseY / 40.0F))) * 20.0F;
        entity.rotationYawHead = entity.rotationYaw;
        entity.prevRotationYawHead = entity.rotationYaw;
        GlStateManager.translate(0.0F, 0.0F, 0.0F);
        RenderManager var11 = Minecraft.getMinecraft().getRenderManager();
        var11.func_178631_a(180.0F);
        var11.func_178633_a(false);
        var11.renderEntityWithPosYaw(entity, 0.0D, 0.0D, 0.0D, 0.0F, 1.0F);
        var11.func_178633_a(true);
        entity.renderYawOffset = var6;
        entity.rotationYaw = var7;
        entity.rotationPitch = var8;
        entity.prevRotationYawHead = var9;
        entity.rotationYawHead = var10;
        GlStateManager.popMatrix();
        RenderHelper.disableStandardItemLighting();
        GlStateManager.disableRescaleNormal();
        GlStateManager.setActiveTexture(OpenGlHelper.lightmapTexUnit);
        GlStateManager.func_179090_x();
        GlStateManager.setActiveTexture(OpenGlHelper.defaultTexUnit);
    }

 

[Flawn_]

In GuiMainScreen i gave it so:

 

EntityLivingBase elb = mc.thePlayer;

[...]

GuiInventory.drawEntityOnScreen(ex, ey, 30, (float)(ex) - GuiInventory.oldMouseX, (float)(ey) - GuiInventory.oldMouseY, elb);

[Kokkie]

That is null until you join a world... I think

But what is mc?

[Flawn_]

mc is Minecraft(). Isnt there a possibility that i can render it ? Has somebody a workaround?

[Kokkie]

I guess Minecraft.getMinecraft()?

Also, can you show your full code instead of little pieces?

[Flawn_]

Here is the Part where it is called (GuiMainMenu)

 public void initGui()
    {
    	int sx = (int) (width * 0.025);
    	int sy = (int) ( height * 0.25);
    	int ex = width / 2 - 150;
    	EntityLivingBase elb = mc.thePlayer;
    	EntityPlayerSP player = new EntityPlayerSP();
    	int ey = height / 2 - 150;
    	int swidth = 80 * (int) (width / 427.0);
    	int sheight = 150 * (int) (height / 150.0);
    	updateList = new GuiScrollList(sx, sy, swidth, sheight, 1073741823, "Updates", InfoUpdates.lines, true);
    	GuiInventory.drawEntityOnScreen(ex, ey, 30, (float)(ex) - GuiInventory.oldMouseX, (float)(ey) - GuiInventory.oldMouseY, player);
    	[...]
}

 

[Flawn_]

How do you make that?  I would make to it also a Skin

Edited February 5, 2017 by Flawn_

[Kokkie]

5 minutes ago, diesieben07 said:

You will need to create a fake player to render, if you are not in the world yet there is no player.

Jay, I said something right

[Flawn_]

But how

[Flawn_]

4 hours ago, diesieben07 said:

You will need to create a fake player to render, if you are not in the world yet there is no player.

But how? Pls say it

[Draco18s]

How do you know what inventory to render? Each save has a different player profile, with a different inventory...

[Flawn_]

No i ment the Player left above the inv.

[Swedz]

On 2/6/2017 at 10:07 AM, TheSunCat said:

That makes more sense... Look at how it's done in the Inventory Gui. That could give you a hint. I have never personally done this myself, as I am not skilled in rendering (I have had a LOT of trouble with simple directional blocks... :P), but I believe that the Inventory Gui has the code for rendering the player. Just use that with a fake player. Basically, FakePlayer fakePlayer = new FakePlayer(argumentsHere);

FakePlayer requires a world argument, and if it's null, it will output an NPE.

[Flawn_]

Yes, but even when i render it in the world it gives me a black screen if i have something in the hand .-.