Computer Science Canada

Explain this code to me please!!!!

Author:  Angel [ Sun Jan 04, 2004 8:56 pm ]
Post subject:  Explain this code to me please!!!!

code:
var word := "W E L C O M E  T O  M O V I E  T R I V I A"
var height := 24
var font1 := Font.New ("raavi:" + intstr (height))
var x := (maxx - Font.Width (word, font1)) div 2
var y := (maxy - height) div 2
for rep : 1 .. length (word)
    delay (100)
    Draw.FillBox (x, y, x + Font.Width (word (rep), font1), y + height, black)
    Font.Draw (word (rep), x, y, font1, 13)
    x += (Font.Width (word (rep), font1))
end for


Please explain this? And how do I increase the size of the boxes? What do I have to alter?

Author:  Tony [ Sun Jan 04, 2004 10:29 pm ]
Post subject: 

you just expand the box... such as change
code:

Draw.FillBox (x, y, x + Font.Width (word (rep), font1), y + height, black)

to
code:

Draw.FillBox (x-5, y-5, x + Font.Width (word (rep), font1)+5, y + height +5, black)

Author:  Dan [ Sun Jan 04, 2004 10:35 pm ]
Post subject: 

code:

%%a basick string
var word := "W E L C O M E  T O  M O V I E  T R I V I A"

%% the high of the next
var height := 24

%% this is the font for Font.Draw, see turing docs for more info
var font1 := Font.New ("raavi:" + intstr (height))

%% this finds the center of the screen minuse the width of the string, see Font.Width
var x := (maxx - Font.Width (word, font1)) div 2

%% this finds the center of the screen minuse the hight of the text
var y := (maxy - height) div 2

%% a for loop that will go once for each char in the string
for rep : 1 .. length (word)

    %%bacik dealy
    delay (100)

    %%this draws a box from the vaule x and y (see above) to x plus the width
    %%of the substrinng word(rep) and y. rep is the index of the for loop so every time
    %%it runs it adds a char of the string word to the value. so the box gets biger
    Draw.FillBox (x, y, x + Font.Width (word (rep), font1), y + height, black)

    %%this wroks like the above where it uses substrings to draw more and more letters.
    %%word(1) whould be "W", word(5) whoudl be "W E L" and so on.
    %%so it draws one more char of the sting each time.
    Font.Draw (word (rep), x, y, font1, 13)

    %%this adds the length of the char that was added to x so the box will be biger next
    %%time round
    x += (Font.Width (word (rep), font1))

end for

Author:  Angel [ Mon Jan 05, 2004 10:46 pm ]
Post subject: 

Thank you! Very Happy


: