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Open GUI on login

Posted October 24, 201311 yr

I have tried to open my custom GUI on logging in/ spawning.

I know the code works, as the GUI opens when I respawn, but not on initial login.

EventHandler:


@SideOnly(Side.CLIENT)
@ForgeSubscribe
public void onLogin(EntityJoinWorldEvent event)
{
	if(event.entity instanceof EntityPlayer)
	{
		EntityPlayer player = (EntityPlayer)event.entity;
		ExtendedPlayer ep = ExtendedPlayer.get(player);
		ep.loadProxyData();
		System.out.println(player);
		System.out.println(ExtendedPlayer.get(player).getPlayerClass());
		if(!ep.hasPlayerClass())
		{
			player.openGui(ClassMod.instance, ClassUtil.classGUIID, player.worldObj, (int)player.posX, (int)player.posY, (int)player.posZ);
		}
	}
}

@SideOnly(Side.CLIENT)
@ForgeSubscribe
public void onLogin(LivingSpawnEvent event)
{
	if(event.entity instanceof EntityPlayer)
	{
		EntityPlayer player = (EntityPlayer)event.entity;
		ExtendedPlayer ep = ExtendedPlayer.get(player);
		ep.loadProxyData();
		System.out.println(player);
		System.out.println(ExtendedPlayer.get(player).getPlayerClass());
		if(!ep.hasPlayerClass())
		{
			player.openGui(ClassMod.instance, ClassUtil.classGUIID, player.worldObj, (int)player.posX, (int)player.posY, (int)player.posZ);
		}
	}
}

Eclipse Output:

2013-10-23 08:49:18 [iNFO] [Minecraft-Server] Player933 joined the game
2013-10-23 08:49:18 [iNFO] [sTDOUT] EntityPlayerMP['Player933'/413, l='New World', x=-538.50, y=64.00, z=-275.50]
2013-10-23 08:49:18 [iNFO] [sTDOUT] null
2013-10-23 08:49:18 [iNFO] [sTDOUT] Setting up custom skins
2013-10-23 08:49:18 [iNFO] [sTDOUT] EntityClientPlayerMP['Player933'/414, l='MpServer', x=8.50, y=66.62, z=8.50]
2013-10-23 08:49:18 [iNFO] [sTDOUT] null

Quote

October 24, 201311 yr

public void onLogin(LivingSpawnEvent event)
{
	if(event.entity instanceof EntityPlayer)

Spawn is for mobs, actually...

if(!ep.hasPlayerClass())

When is this value set to true ?

Quote

October 24, 201311 yr

Hello,

I think the easiest way to do this is to create a class which implements IConnectionHandler and use this function:

public void playerLoggedIn(Player player, NetHandler netHandler, INetworkManager manager)

Thats how i do it.

ss7

You sir are a god damn hero.

Quote

October 24, 201311 yr

Author

public void onLogin(LivingSpawnEvent event)
{
	if(event.entity instanceof EntityPlayer)

Spawn is for mobs, actually...

Explains why adding this event handler didn't make the print statements appear twice, thanks for the explanation.

if(!ep.hasPlayerClass())
When is this value set to true ?

The result of the button pressed within the GUI changes the value, or sending a command. As of yet I don't think the value is ever changed because I haven't finished my packet handler.

I think the easiest way to do this is to create a class which implements IConnectionHandler and use this function:
public void playerLoggedIn(Player player, NetHandler netHandler, INetworkManager manager)

Thanks, will try that. Do I need to register said class somewhere? Such as in the @Mod class?

EDIT: Never mind, found it. (NetworkRegistry.registerConnectionHandler())

Quote

October 24, 201311 yr

Explains why adding this event handler didn't make the print statements appear twice, thanks for the explanation.

Because they are from client and server side of the other event. You are welcome.

The result of the button pressed within the GUI changes the value, or sending a command. As of yet I don't think the value is ever changed because I haven't finished my packet handler.

Which means it should always open at this point ?

I guess there is something wrong in your gui handling code, then.

Quote

October 24, 201311 yr

Author

The result of the button pressed within the GUI changes the value, or sending a command. As of yet I don't think the value is ever changed because I haven't finished my packet handler.

Which means it should always open at this point ?

I guess there is something wrong in your gui handling code, then.

Correct, it should always open the first time a player logs into a new world / server.

My server-side gui element is returned as null, is that what is causing the problem? Do I have to make a blank container as the gui consists of nothing but buttons, which send a packet to the server when clicked, and close the GUI

Quote

October 25, 201311 yr

You don't need a container if you don't want inventory slots.

Could you show your Gui class ? It would be easier to help you.

Quote

October 25, 201311 yr

Author

You don't need a container if you don't want inventory slots.

Thanks for the confirmation, I didn't think so.

GUI class (will be re-written at some point, its a tad messy, but I know it works as it appears when I kill myself (EntityJoinWorldEvent launches it))

package alpvax.classmod.client;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.gui.Gui;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.GuiScreen;

import org.lwjgl.opengl.GL11;

import alpvax.classmod.core.ClassMod;
import alpvax.classmod.core.ClassUtil;
import alpvax.classmod.network.packet.ClassSelectPacket;
import alpvax.classmod.playerclass.PlayerClass;
import cpw.mods.fml.common.network.PacketDispatcher;

import static alpvax.classmod.core.ClassMod.selectGUIMaxC;
import static alpvax.classmod.core.ClassMod.selectGUIMaxR;

public class GuiClassSelect extends GuiScreen
{
private static int xPadding = 10;
private static int yPadding = 10;
private int page;
private int maxPages = 1;

/**
     * Adds the buttons (and other controls) to the screen in question.
     */
@Override
    public void initGui()
    {
        this.buttonList.clear();
        int i = PlayerClass.allowedClasses.size();
        if (i > selectGUIMaxC * selectGUIMaxR)
        {
            buttonList.add(new GuiButton(0, width / 2 - (62 + xPadding), height / 2 + 58, 20, 20, "<"));
            buttonList.add(new GuiButton(1, width / 2 + (62 + xPadding), height / 2 + 58, 20, 20, ">"));
            maxPages = (int)Math.floor(i / selectGUIMaxC * selectGUIMaxR);
        }
        for(int i1 = 0; i1 < maxPages; i1++)
        {
        int j = getNumRows();
    	int startY = height / 2 - (j * 96 + (j - 1) * yPadding) / 2;
        for(int j1 = 0; j1 < j; j1++)
        {
        	int k = getNumForRow(j1);
        	int startX = width / 2 - (k * 62 + (k - 1) * xPadding) / 2;
        	for(int k1 = 0; k1 < k; k1++)
        	{
        		makeClassButton(i1, j1, k1, startX, startY);
        	}
        }
        }
    }

/**
     * Draws the screen and all the components in it.
     */
@Override
    public void drawScreen(int mouseX, int mouseY, float partialTicks)
    {
	this.drawDefaultBackground();
        for (int var4 = 0; var4 < buttonList.size(); ++var4)
        {
        	if(this.buttonList.get(var4) instanceof GuiButton)
        	{
            GuiButton var5 = (GuiButton)this.buttonList.get(var4);
            var5.drawButton(this.mc, mouseX, mouseY);
        	}
        	else
        	{
        		GuiClassButton var5 = (GuiClassButton)this.buttonList.get(var4);
                var5.undraw();
        	}
        }
        int i = getNumRows();
    	int startY = height / 2 - (i * 96 + (i - 1) * yPadding) / 2;
        GL11.glPushMatrix();
        this.drawCenteredString(this.fontRenderer, "Select your class", this.width / 2, startY - yPadding, 16777215);
        GL11.glPopMatrix();
        for(int i1 = 0; i1 < i; i1++)
        {
        	int j = getNumForRow(i1);
        	int startX = width / 2 - (j * 62 + (j - 1) * xPadding) / 2;
        	for(int j1 = 0; j1 < j; j1++)
        	{
                GuiClassButton var5 = (GuiClassButton)this.buttonList.get(page * selectGUIMaxC * selectGUIMaxR + i1 * selectGUIMaxC + j1);// + maxPages > 1 ? 2 : 0);
                var5.draw(this.mc, mouseX, mouseY);
        	}
        }
    }

/**
     * Called when the mouse is clicked.
     */
@Override
    protected void mouseClicked(int par1, int par2, int par3)
    {
        if (par3 == 0)
        {
            for (int var4 = 0; var4 < this.buttonList.size(); ++var4)
            {
            	if(buttonList.get(var4) instanceof GuiButton)
            	{
                GuiButton var5 = (GuiButton)this.buttonList.get(var4);

                if (var5.mousePressed(this.mc, par1, par2))
                {
                    this.mc.sndManager.playSoundFX("random.click", 1.0F, 1.0F);
                    this.actionPerformed(var5);
                }
            	}
            	else
            	{
            		GuiClassButton var5 = (GuiClassButton)this.buttonList.get(var4);

                if(var5.mousePressed(this.mc, par1, par2))
                {
                	PacketDispatcher.sendPacketToServer(new ClassSelectPacket(mc.thePlayer, var5.playerclass).makePacket());
                    //PlayerClass.setPlayerClass(mc.thePlayer, var5.playerclass);
                    System.out.println(var5.playerclass);
                    mc.setIngameFocus();
        	        //PlayerClass.startPowerDelay();
                }
            	}
            }
        }
    }

/**
     * Fired when a control is clicked. This is the equivalent of ActionListener.actionPerformed(ActionEvent e).
     */
@Override
    protected void actionPerformed(GuiButton par1GuiButton)
    {
        switch (par1GuiButton.id)
        {
            case 0:
                page = Math.max(page - 1, 0);
                break;
            case 1:
                page = Math.min(page + 1, maxPages);
                break;
        }
        initGui();
    }

private int getNumForPage()
{
	return Math.min(PlayerClass.allowedClasses.size() - page * selectGUIMaxC * selectGUIMaxR, selectGUIMaxC * selectGUIMaxR);
}

private int getNumRows()
{
	return (int)Math.ceil((float)getNumForPage() / (float)selectGUIMaxC);
}

private int getNumForRow(int row)
{
	return Math.min(getNumForPage() - row * selectGUIMaxC, selectGUIMaxC);
}

private void makeClassButton(int currentPage, int row, int column, int startX, int startY)
{
	int i = startX + (62 + xPadding) * column;
	int j = startY + (96 + yPadding) * row;
	PlayerClass playerclass = PlayerClass.getPlayerClass(PlayerClass.allowedClasses.get(currentPage * selectGUIMaxC * selectGUIMaxR + row * selectGUIMaxC + column));
	buttonList.add(new GuiClassButton(i, j, playerclass));
}

public class GuiClassButton extends Gui
{
	/** Button width in pixels */
    protected int width = 62;

    /** Button height in pixels */
    protected int height = 96;

    /** The x position of this control. */
    public int xPosition;

    /** The y position of this control. */
    public int yPosition;
    
    /** Is not drawn */
    private boolean hidden = true;
    
    /** The y position of this control. */
    public PlayerClass playerclass;

	public GuiClassButton(int par1, int par2, PlayerClass par3PlayerClass)
	{
		xPosition = par1;
		yPosition = par2;
		playerclass = par3PlayerClass;
	}

    /**
     * Returns 0 if the button is disabled, 1 if the mouse is NOT hovering over this button and 2 if it IS hovering over
     * this button.
     */
    protected int getHoverState(boolean par1)
    {
        return par1 ? 2 : 1;
    }
    
    /**
     * Returns true if the mouse has been pressed on this control. Equivalent of MouseListener.mousePressed(MouseEvent
     * e).
     */
    public boolean mousePressed(Minecraft mc, int mouseX, int mouseY)
    {
        return !hidden && mouseX >= this.xPosition && mouseY >= this.yPosition && mouseX < this.xPosition + this.width && mouseY < this.yPosition + this.height;
    }
    
    public void draw(Minecraft mc, int mouseX, int mouseY)
    {
    	hidden = false;
        mc.getTextureManager().bindTexture(playerclass.getIcon());
            drawTexturedModalRect(xPosition + 8, yPosition + 12, 0, 0, 46, 73);
    	mc.getTextureManager().bindTexture(ClassUtil.classGUIMain);
        drawTexturedModalRect(xPosition, yPosition, 0, 0, 62, 96);
            boolean flag = mouseX >= this.xPosition && mouseY >= this.yPosition && mouseX < this.xPosition + this.width && mouseY < this.yPosition + this.height;
        if(flag)
        {
            drawTexturedModalRect(xPosition - 10, yPosition - 10, 62, 0, 86, 118);
        }
        FontRenderer fr = mc.fontRenderer;
        String s = playerclass.getDisplayName();
        fr.drawStringWithShadow(s, xPosition + width / 2 - fr.getStringWidth(s) / 2, yPosition + 85, 16777215);
    }
    
    public void undraw()
    {
    	hidden = true;
    }
}
}

And my proxy/ GUIHandler methods

@Override
public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z)
{
	if(ID == ClassUtil.classGUIID) return new GuiClassSelect();
	return null;
}

@Override
public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z)
{
	return null;
}

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