Render 2D lines on screen

NathanPB · February 15, 2018

Hello Everyone, I want to drawn a square around my hud (like this)

but i fucking cant because Gui#drawVerticalLine / horizontalLine arent working as expected

    public void render(){
        if(renderborders){
            Integer color = Integer.parseInt("FF0000", 16);
            drawHorizontalLine(getX(), getX()+width, getY(), color);
            drawHorizontalLine(getX(), getX()+width, getY()+height, color);

            drawVerticalLine(getY(), getY()+height, getX(), color);
            drawVerticalLine(getY(), getY()+height, getX()+width, color);
        }
    }

The render method are being invoked, I tested it using Intellij Idea debugger (or System.out.println)
What am I doing wrong? thanks everyone

sir_titi · February 15, 2018

Maybe this may be of use to you (comes from my core but feel free to use it)

	/**draws a rounded bordered box
	 * @param centerToMousePosX
	 * @param centerToMousePosY
	 * @param height
	 * @param boxLenght
	 * @param innerColor
	 * @param outerColor
	 * @author kevin (Sir_titi)*/
	public void drawRoundedBox(int centerToMousePosX,int centerToMousePosY,int height,int boxLenght,int innerColor,int outerColor){
		drawRoundedFilledBox(centerToMousePosX, centerToMousePosY, height, boxLenght, innerColor);
		drawRoundedHollowBox(centerToMousePosX, centerToMousePosY, height, boxLenght, outerColor);
	}
	
	/**draws a hollow (border)
	 * @param centerToMousePosX
	 * @param centerToMousePosY
	 * @param height
	 * @param boxLenght
	 * @param color
	 * @author kevin (Sir_titi)*/
	protected void drawRoundedHollowBox(int centerToMousePosX,int centerToMousePosY,int height,int boxLenght,int color){
		drawVerticalLine(centerToMousePosX-5, centerToMousePosY-1-4, centerToMousePosY-height+3, color);//left
		drawHorizontalLine(centerToMousePosX, centerToMousePosX+boxLenght-1, centerToMousePosY-height, color);//upper line
		drawVerticalLine(centerToMousePosX+4+boxLenght, centerToMousePosY-1-4, centerToMousePosY-height+3, color);//right
		drawHorizontalLine(centerToMousePosX, centerToMousePosX+boxLenght-1, centerToMousePosY-2, color);//lower line
		for (int i=0;i<4;i++){
			drawRect(centerToMousePosX-i, centerToMousePosY-2-i, centerToMousePosX-1-i, centerToMousePosY-1-i, color);//lower left
			drawRect(centerToMousePosX+i+boxLenght, centerToMousePosY-2-i, centerToMousePosX+1+i+boxLenght, centerToMousePosY-1-i, color);//lower right
			drawRect(centerToMousePosX-i, centerToMousePosY-height+i, centerToMousePosX-1-i, centerToMousePosY+1-height+i, color);//upper left
			drawRect(centerToMousePosX+i+boxLenght, centerToMousePosY-height+i, centerToMousePosX+1+boxLenght+i, centerToMousePosY+1-height+i, color);//upper right
		}
	}
	
	/**draws a full rounded box
	 * @param centerToMousePosX
	 * @param centerToMousePosY
	 * @param height
	 * @param boxLenght
	 * @param color
	 * @author kevin (Sir_titi)*/
	protected void drawRoundedFilledBox(int centerToMousePosX,int centerToMousePosY,int height,int boxLenght,int color){
		drawRect(centerToMousePosX, centerToMousePosY-2, centerToMousePosX+boxLenght, centerToMousePosY-height+1, color);
		for (int i=0;i<4;i++){
			drawRect(centerToMousePosX-i, centerToMousePosY-2-i, centerToMousePosX-1-i, centerToMousePosY-height+1+i, color);
			drawRect(centerToMousePosX+boxLenght+i, centerToMousePosY-2-i, centerToMousePosX+boxLenght+1+i, centerToMousePosY-height+1+i,color);
		}
	}
	
	/**draws a squared box (+border) with default height of 14 pixels<br>
	 * use {@linkplain GuiUtils#drawSquaredBox(int , int, int, int, int, int)} for custom height
	 * @param CenterToMousePosX
	 * @param CenterToMousePosY
	 * @param BoxLenght
	 * @param InnerColor
	 * @param OuterColor
	 * @author kevin (Sir_titi)*/
	public void drawSquaredBox(int CenterToMousePosX,int CenterToMousePosY,int BoxLenght,int InnerColor,int OuterColor){
		drawSquaredBox(CenterToMousePosX, CenterToMousePosY, 14, BoxLenght, InnerColor, OuterColor);
	}
	
	/**draws a squared box with border
	 * @param CenterToMousePosX
	 * @param CenterToMousePosY
	 * @param height
	 * @param BoxLenght
	 * @param InnerColor
	 * @param OuterColor
	 * @author kevin (Sir_titi)*/
	public void drawSquaredBox(int CenterToMousePosX,int CenterToMousePosY,int height,int BoxLenght,int InnerColor,int OuterColor){
		drawRect(CenterToMousePosX, CenterToMousePosY-2, CenterToMousePosX+BoxLenght+1, CenterToMousePosY-height+1, InnerColor);
		drawHorizontalLine(CenterToMousePosX-1, CenterToMousePosX+BoxLenght+1, CenterToMousePosY-height, OuterColor);
		drawHorizontalLine(CenterToMousePosX, CenterToMousePosX+BoxLenght, CenterToMousePosY-2, OuterColor);
		drawVerticalLine(CenterToMousePosX-1, CenterToMousePosY-height, CenterToMousePosY-1, OuterColor);
		drawVerticalLine(CenterToMousePosX+BoxLenght+1, CenterToMousePosY-height, CenterToMousePosY-1, OuterColor);
	}

EDIT: to explain some more the "drawVerticalLine(xPos,minY,maxY,color)"

And the "drawHorizontalLine(minX,maxX,yPos,color)"

Edited February 15, 2018 by sir_titi

NathanPB · February 15, 2018

On 2/15/2018 at 9:55 PM, sir_titi said:

A GUI is 2D so you shouldn't have X,Y,Z only X,Y

maybe this may of use to you (comes from my core but feel free to use it)

	/**draws a rounded bordered box
	 * @param centerToMousePosX
	 * @param centerToMousePosY
	 * @param height
	 * @param boxLenght
	 * @param innerColor
	 * @param outerColor
	 * @author kevin (Sir_titi)*/
	public void drawRoundedBox(int centerToMousePosX,int centerToMousePosY,int height,int boxLenght,int innerColor,int outerColor){
		drawRoundedFilledBox(centerToMousePosX, centerToMousePosY, height, boxLenght, innerColor);
		drawRoundedHollowBox(centerToMousePosX, centerToMousePosY, height, boxLenght, outerColor);
	}
	
	/**draws a hollow (border)
	 * @param centerToMousePosX
	 * @param centerToMousePosY
	 * @param height
	 * @param boxLenght
	 * @param color
	 * @author kevin (Sir_titi)*/
	protected void drawRoundedHollowBox(int centerToMousePosX,int centerToMousePosY,int height,int boxLenght,int color){
		drawVerticalLine(centerToMousePosX-5, centerToMousePosY-1-4, centerToMousePosY-height+3, color);//left
		drawHorizontalLine(centerToMousePosX, centerToMousePosX+boxLenght-1, centerToMousePosY-height, color);//upper line
		drawVerticalLine(centerToMousePosX+4+boxLenght, centerToMousePosY-1-4, centerToMousePosY-height+3, color);//right
		drawHorizontalLine(centerToMousePosX, centerToMousePosX+boxLenght-1, centerToMousePosY-2, color);//lower line
		for (int i=0;i<4;i++){
			drawRect(centerToMousePosX-i, centerToMousePosY-2-i, centerToMousePosX-1-i, centerToMousePosY-1-i, color);//lower left
			drawRect(centerToMousePosX+i+boxLenght, centerToMousePosY-2-i, centerToMousePosX+1+i+boxLenght, centerToMousePosY-1-i, color);//lower right
			drawRect(centerToMousePosX-i, centerToMousePosY-height+i, centerToMousePosX-1-i, centerToMousePosY+1-height+i, color);//upper left
			drawRect(centerToMousePosX+i+boxLenght, centerToMousePosY-height+i, centerToMousePosX+1+boxLenght+i, centerToMousePosY+1-height+i, color);//upper right
		}
	}
	
	/**draws a full rounded box
	 * @param centerToMousePosX
	 * @param centerToMousePosY
	 * @param height
	 * @param boxLenght
	 * @param color
	 * @author kevin (Sir_titi)*/
	protected void drawRoundedFilledBox(int centerToMousePosX,int centerToMousePosY,int height,int boxLenght,int color){
		drawRect(centerToMousePosX, centerToMousePosY-2, centerToMousePosX+boxLenght, centerToMousePosY-height+1, color);
		for (int i=0;i<4;i++){
			drawRect(centerToMousePosX-i, centerToMousePosY-2-i, centerToMousePosX-1-i, centerToMousePosY-height+1+i, color);
			drawRect(centerToMousePosX+boxLenght+i, centerToMousePosY-2-i, centerToMousePosX+boxLenght+1+i, centerToMousePosY-height+1+i,color);
		}
	}
	
	/**draws a squared box (+border) with default height of 14 pixels<br>
	 * use {@linkplain GuiUtils#drawSquaredBox(int , int, int, int, int, int)} for custom height
	 * @param CenterToMousePosX
	 * @param CenterToMousePosY
	 * @param BoxLenght
	 * @param InnerColor
	 * @param OuterColor
	 * @author kevin (Sir_titi)*/
	public void drawSquaredBox(int CenterToMousePosX,int CenterToMousePosY,int BoxLenght,int InnerColor,int OuterColor){
		drawSquaredBox(CenterToMousePosX, CenterToMousePosY, 14, BoxLenght, InnerColor, OuterColor);
	}
	
	/**draws a squared box with border
	 * @param CenterToMousePosX
	 * @param CenterToMousePosY
	 * @param height
	 * @param BoxLenght
	 * @param InnerColor
	 * @param OuterColor
	 * @author kevin (Sir_titi)*/
	public void drawSquaredBox(int CenterToMousePosX,int CenterToMousePosY,int height,int BoxLenght,int InnerColor,int OuterColor){
		drawRect(CenterToMousePosX, CenterToMousePosY-2, CenterToMousePosX+BoxLenght+1, CenterToMousePosY-height+1, InnerColor);
		drawHorizontalLine(CenterToMousePosX-1, CenterToMousePosX+BoxLenght+1, CenterToMousePosY-height, OuterColor);
		drawHorizontalLine(CenterToMousePosX, CenterToMousePosX+BoxLenght, CenterToMousePosY-2, OuterColor);
		drawVerticalLine(CenterToMousePosX-1, CenterToMousePosY-height, CenterToMousePosY-1, OuterColor);
		drawVerticalLine(CenterToMousePosX+BoxLenght+1, CenterToMousePosY-height, CenterToMousePosY-1, OuterColor);
	}

Expand

dont works ;-;

sir_titi · February 15, 2018

then show me the GUI code, cuss it sure works i use it :s.

NathanPB · February 15, 2018

On 2/15/2018 at 10:07 PM, sir_titi said:

then show me the GUI code, cuss it sure works i use it :s.

Expand

https://github.com/NathanPB/Mysticis/blob/master/src/main/java/cf/nathanpb/mysticis/hud/elements/HudElement.java#L30

Edited February 15, 2018 by NathanPB

sir_titi · February 15, 2018

well i extend the Gui rather than doing what you are doing

Why do you do it this way if i may ask?

NathanPB · February 15, 2018

On 2/15/2018 at 10:23 PM, sir_titi said:

well i extend the Gui rather than doing what you are doing

Why do you do it this way if i may ask?

Expand

well, i dont know exactly. I made this way because I want to make all my huds "dragable"
https://i.imgur.com/rtjRkQ0.gifv

Think its the best way to do this, but probably ill rewrite it all

sir_titi · February 15, 2018

On 2/15/2018 at 10:26 PM, NathanPB said:

well, i dont know exactly. I made this way because I want to make all my huds "dragable"
https://i.imgur.com/rtjRkQ0.gifv

Think its the best way to do this, but probably ill rewrite it all

Expand

ah ok :p.

And to be clear it's doesn't render anything (border)?

NathanPB · February 15, 2018

On 2/15/2018 at 10:29 PM, sir_titi said:

ah ok :p.

And to be clear it's doesn't render anything (border)?

Expand

nothing

sir_titi · February 15, 2018

and the method does get called yes?

cuss that is pretty weird wait a sec i'll take a look at my GUI's

NathanPB · February 15, 2018

the method is being called, im sure

sir_titi · February 15, 2018

hmmm, this is really weird :s. I'm afraid i might not be able to help you here, dammit.

sir_titi · February 15, 2018

Is data synced to server? because i have noticed you set the position but on server from Client :s. This can not work.

Oh sorry my bad not correct:p.

Edited February 15, 2018 by sir_titi

NathanPB · February 16, 2018

On 2/15/2018 at 10:54 PM, sir_titi said:

Is data synced to server? because i have noticed you set the position but on server from Client :s. This can not work.

Oh sorry my bad not correct:p.

Expand

Im not sure about it? How do I check?

Quote

System.out.println(FMLCommonHandler.instance().getEffectiveSide());

Expand

?

NathanPB · February 16, 2018

I understood your question. Im synchronizing the data using packets, its all ok

sir_titi · February 16, 2018

Hah yea, my bad :p.

Nevertheless your issue is weird man :s, cuss your "text" is rendered properly, but the "drawing" doesn't.

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Render 2D lines on screen

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