private static Texture textSpriteSheet;

private static String[][] textMatrix = {
    {"","","!","(",")","%","#","'","\"","^","+","_",",","-",".","/"},
    {"0","1","2","3","4","5","6","7","8","9",":"," ","","=","","?"},
    {"[c]","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O"},
    {"P","Q","R","S","T","U","V","W","X","Y","Z","a","b","c","d","e"},
    {"f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u"},
    {"v","w","x","y","z","\"",";","<",">"," "," "," "," "," "," "," "}
};

/**
 * 
 * @param texture Texture to be written to
 * @param x X coordinate of the top left pixel of the area to write to on the texture
 * @param y Y coordinate of the top left pixel of the area to write to on the texture
 * @param untilWrap How many characters until the text writes down to the next line
 * @param text What text to write into texture
 * @return Inputed texture with the specified text written into it.
 */
public static Texture WriteToTexture(Texture texture, int dimension, int x, int y, int untilWrap, String text){

    boolean FBOEnabled = GLContext.getCapabilities().GL_EXT_framebuffer_object;

    if (!FBOEnabled){
        System.out.println("The FBO extension is not supported!");
        return texture;
    }

    if (textSpriteSheet==null){
        textSpriteSheet = QuickLoad("Mega_Man_Font_8x8");
        System.out.println("textSpriteSheet is null!");
    }

    int textX = x;
    int textY = y;

    /**Set up FBO to render to texture**/

    //Generally a good idea to enable texturing first
    GL11.glEnable(GL11.GL_TEXTURE_2D);

    //Create Frame Buffer Object (FBO)
    IntBuffer buffer = ByteBuffer.allocateDirect(1*4).order(ByteOrder.nativeOrder()).asIntBuffer(); // allocate a 1 int byte buffer
    EXTFramebufferObject.glGenFramebuffersEXT(buffer); // generate
    int myFBOId = buffer.get();

    //Bind Texture to FBO
    EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, myFBOId);
    EXTFramebufferObject.glFramebufferTexture2DEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT,GL11.GL_TEXTURE_2D, texture.getTextureID(), 0);

    //Completeness check
    int framebuffer = EXTFramebufferObject.glCheckFramebufferStatusEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT);
    switch (framebuffer) {
        case EXTFramebufferObject.GL_FRAMEBUFFER_COMPLETE_EXT:
            break;
        case EXTFramebufferObject.GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT:
            throw new RuntimeException( "FrameBuffer: " + myFBOId + ", has caused a GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT exception" );
        case EXTFramebufferObject.GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT:
            throw new RuntimeException( "FrameBuffer: " + myFBOId + ", has caused a GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT exception" );
        case EXTFramebufferObject.GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT:
            throw new RuntimeException( "FrameBuffer: " + myFBOId + ", has caused a GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT exception" );
        case EXTFramebufferObject.GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT:
            throw new RuntimeException( "FrameBuffer: " + myFBOId + ", has caused a GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT exception" );
        case EXTFramebufferObject.GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT:
            throw new RuntimeException( "FrameBuffer: " + myFBOId + ", has caused a GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT exception" );
        case EXTFramebufferObject.GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT:
            throw new RuntimeException( "FrameBuffer: " + myFBOId + ", has caused a GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT exception" );
        default:
            throw new RuntimeException( "Unexpected reply from glCheckFramebufferStatusEXT: " + framebuffer );
    }

    //Bind FBO
    EXTFramebufferObject.glBindFramebufferEXT( EXTFramebufferObject.GL_FRAMEBUFFER_EXT, myFBOId );
    GL11.glPushAttrib(GL11.GL_VIEWPORT_BIT);
    GL11.glViewport( 0, 0, 128, 128);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);

    //Render text

    while (!text.equals("")){

        String character = text.substring(0,1);
        text = text.substring(1);
        boolean typed = false;

        for (int i = 0; i<textMatrix.length; i++){
            for (int j = 0; j<textMatrix[i].length; j++){

                if (character.equals("@")){
                    textX = x;
                    textY+=8;
                    typed = true;
                    break;
                }

                if (character.equals(textMatrix[i][j])){
                    //DrawQuadTex(textSpriteSheet, (int) textX, (int) textY, 8, 8, 128, 128, j*8, i*8, 8, "");

                    textSpriteSheet.bind();
                    glTranslatef(textX, textY, 0);
                    glBegin(GL_QUADS);
                    glTexCoord2f(j*8/dimension, i*8/dimension);//top left corner
                    glVertex2f(0,0);
                    glTexCoord2f((j*8+8)/dimension, i*8/dimension);//top right corner
                    glVertex2f(8,0);
                    glTexCoord2f((j*8+8)/dimension, (i*8+8)/dimension);//bottom right corner
                    glVertex2f(8,8);
                    glTexCoord2f(j*8/dimension, (i*8+8)/dimension);//bottom left corner
                    glVertex2f(0,8);
                    glEnd();

                    glLoadIdentity();

                    System.out.println("WROTE TO TEXTURE!\nX: "+textX+"\nY: "+textY);

                    textX+=8;

                    if ((textX-x)/8>untilWrap){
                        textX = x;
                        textY+=8;
                    }
                    typed = true;
                    break;
                }
            }
            if (typed){break;}
        }
    }
    //Unbind Texture
    EXTFramebufferObject.glBindFramebufferEXT( EXTFramebufferObject.GL_FRAMEBUFFER_EXT, 0);
    GL11.glPopAttrib();

    //Return texture
    return texture;
}

package data;

import static helpers.Artist.*; import org.newdawn.slick.opengl.Texture;

public class WeaponSelection extends Actor{
    private double x;
    private double y;
    private int iconSpriteX;
    private int iconSpriteY;
    private int untilWrap;
    private String text;
    private Texture texture = QuickLoad("blank_128x128");
    //private static Texture iconSpriteSheet = QuickLoad("mega_man_weapon_icons_by_blistalk-d5mybk8");

    public WeaponSelection(double x, double y, int iconSpriteX, int iconSpriteY, int untilWrap, String text){
        this.x = x;
        this.y = y;
        this.iconSpriteX = iconSpriteX;
        this.iconSpriteY = iconSpriteY;
        this.untilWrap = untilWrap;
        this.text = text;
    }

    boolean first = true;
    public void Draw(){

        if (first){
            texture = WriteToTexture(texture, 128, 20, 5, untilWrap, text);
            first = false;
        }

        //insert weapon icon drawing code here
        DrawQuadTex(texture, (int)x, (int) y, 128, 128, 128, 128, 0, 0, 128, "");
    }

 }

WeaponSelection textTest = new WeaponSelection(0,0,0,0,10,"B. CRACKER");