Libraries.Game.Graphics.Fonts.GlyphProfile

The GlyphProfile class is used to maintain information about a glyph's outline which is used in the rasterization process. Specifically, it saves the maximum and minimum y values of the glyph, which is the range of performing scanlines for the glyph, as well as where a given y-coordinate intersects with the glyph outline, which are the x-intercepts.

Example Code

use Libraries.Game.Graphics.Fonts.all
    use Libraries.Game.Game

    class Main is Game
        action Main
            StartGame()
        end

        action CreateGame
            XCoordinateList item
            PixelIntersection intersection
            GlyphProfile glyphProfile
            intersection:SetXPosition(0)
            intersection:SetIntensity(1)
            item:Add(intersection)
            // This will add an x-intercept for y = 0, where it intercepts
            // the outline at x = 0
            glyphProfile:AddCoordinatesAt(0, item)
        end
    e

This action adds a list of x-intercepts for the given y-coordinate to the hash table.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                XCoordinateList coordinates
                glyphProfile:AddCoordinatesAt(0, coordinates)
            end
        e

This action compares two object hash codes and returns an integer. The result is larger if this hash code is larger than the object passed as a parameter, smaller, or equal. In this case, -1 means smaller, 0 means equal, and 1 means larger. This action was changed in Quorum 7 to return an integer, instead of a CompareResult object, because the previous implementation was causing efficiency issues.

Example Code

Object o
        Object t
        integer result = o:Compare(t) //1 (larger), 0 (equal), or -1 (smalle

This action determines if two objects are equal based on their hash code values.

Example Code

use Libraries.Language.Object
        use Libraries.Language.Types.Text
        Object o
        Text t
        boolean result = o:Equals(

This action gets the hash code for an object.

Example Code

Object o
        integer hash = o:GetHashCode

This action returns an iterator for the hash table of x-intercepts.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                Iterator<integer> iterator = glyphProfile:GetKeyIterator()
            end
        e

This action returns the current nonzero value of the line.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                output glyphProfile:GetNonzero()
            end
        e

This action returns all of the x-intercepts for the given y-coordinate.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                CoordinateContainer intercepts
                intercepts = glyphProfile:GetXInterceptAtY(0)
            end
        e

This action returns the hash table of x-intercepts and their corresponding y-coordinate values.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game
        use Libraries.Containers.HashTable

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                HashTable<integer, CoordinateContainer> intercepts = glyphProfile:GetXIntercepts()
            end
        e

This action returns the highest point of the glyph, on the y-axis.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                output glyphProfile:GetYMaximum()
            end
        e

This action returns the lowest point of the glyph, on the y-axis.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end
            
            action CreateGame
                GlyphProfile glyphProfile
                output glyphProfile:GetYMinimum()
            end
        e

This action checks if a given y-coordinate has x-intercepts mapped to it in the hash table.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                output glyphProfile:HasY(0) 
            end
        e

This action sets the current nonzero value of the line.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                glyphProfile:SetNonzero(1)
            end
        e

This action sets the x-intercepts hash table. Each y-coordinate of the glyph is used as a key to map to its x-intercepts.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game
        use Libraries.Containers.HashTable

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                HashTable<integer, CoordinateContainer> intercepts
                glyphProfile:SetXIntercepts(intercepts)
            end
        e

This action sets the highest point of the glyph, on the y-axis.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                glyphProfile:SetYMaximum(10)
            end
        e

This action sets the lowest point of the glyph, on the y-axis.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                glyphProfile:SetYMinimum(10)
            end
        e

This action returns the x-intercepts for a given y-coordinate as text.

Example Code

use Libraries.Game.Graphics.Fonts.all
        use Libraries.Game.Game

        class Main is Game
            action Main
                StartGame()
            end

            action CreateGame
                GlyphProfile glyphProfile
                output glyphProfile:XInterceptsToText(0)
            end
        e