Added demo CEL/CELX scripts for overlay & verbosity
# Conflicts: # scripts/audio/sound_demo.celxpull/110/head
Alexell
Hleb Valoshka
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This folder for placing images that will be used by the overlay / celestia:overlay command in the CEL / CELX scripts.
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If necessary, you can create subfolders to organize and classify audio files for various needs.
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# ---------------------------------------------------------------------------------------
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# This file demonstrates the 'overlay' command
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# The command allows you to display an image in the format BMP, JPG, PNG, which must be
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# Pre-located in the "images" folder or its sub-folders of the Celestia main directory.
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# Supports image scaling, transparency and positioning.
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# Script author: Vincent (June 2006, contact: vince.gian@free.fr)
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# Modified by: Sergey Leonov aka Leserg <leserg@ua.fm> (June 2014)
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#
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# This command accepts 6 arguments:
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#
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# overlay ( duration [float] xoffset [float] yoffset [float] alpha [float] filename [str] fitscreen [int] )
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#
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# duration - Determines the duration of the image display.
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# If not specified, the default time is 3 seconds.
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#
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# xoffset - Determines the placement of the image horizontally
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# relative to the center of the working area of the Celestia window.
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# If not specified, the default value is 0.0.
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# Valid values are in the range from -1 to 1 relative to the center of the Celestia window:
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# > if xoffset = -1 -> The image is placed in the center of the left edge
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# of Celestia window => You will only see the right half of the image;
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# > if xoffset = 1 -> The image is placed in the center of the right edge
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# of Celestia window => You will only see the left half of the image;
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#
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# yoffset - Determines the placement of the image vertically
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# relative to the center of the working area of the Celestia window.
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# If not specified, the default value is 0.0.
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# Valid values are in the range from -1 to 1 relative to the center of the Celestia window:
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# > if yoffset = -1 -> The image is placed in the center of the bottom edge
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# of Celestia window => You will only see the upper half of the image;
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# > if yoffset = 1 -> The image is placed in the center of the upper edge
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# of Celestia window => You will only see the bottom half of the image;
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# > if xoffset = 0.0 and yoffset = 0.0 -> The image is centered.
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#
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# alpha - Determines the transparency of the image on the screen.
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# If not specified, the default value is 1.0
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# Valid values are in the range from 0.0 to 1.0
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# > if alpha = 0.0 -> The image is completely transparent (ie invisible);
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# > if alpha = 1.0 -> The image is opaque (i.e., fully visible).
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#
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# filename - Specifies the name of the image file to display.
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# The search for files is relative to the "images" subfolder,
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# which should be located in the Celestia main directory.
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# Thus, all the images for display using the script command must be in the
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# "images" folder or its subfolders.
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#
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# fitscreen - Determines the image zoom mode:
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# > if fitscreen = 0 -> The image will be shown in the original size;
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# > if fitscreen = 1 -> The image will be scaled by the Celestia window.
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# If not specified, the default value is 0.
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# --------------------------------------------------------------------------------------
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{
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print { origin "bottomleft" row -5 column 3 duration 5 text "Welcome!\n\nYou start a script with examples of displaying the image on the screen." }
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wait { duration 5 }
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# ======< Example 1 >======
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# In the center of the Celestia window, display the image file "image.jpg". Time 6 seconds.
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# For the rest of the parameters we use default values, so we do not specify them.
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overlay { duration 6 filename "image.jpg" }
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wait { duration 1 }
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print { origin "bottomleft" row -3 column 3 duration 4 text "The image is placed in the center of the window." }
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wait { duration 4 }
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wait { duration 2 }
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# ======< Example 2 >======
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# In the center of the Celestia window, display the image file "image.jpg". Time 6 seconds.
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# Set the transparency to 0.5.
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overlay { duration 6 alpha 0.5 filename "image.jpg" }
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wait { duration 1 }
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print { origin "bottomleft" row -3 column 3 duration 4 text "The image is placed in the center of the window, the transparency is 0.5." }
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wait { duration 4 }
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wait { duration 2 }
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# ======< Example 3 >======
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# In the center of the image "image.jpg" and deploy it to the entire Celestia window.
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# Set the transparency level to 0.5. Time 6 seconds.
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overlay { duration 6 alpha 0.5 filename "image.jpg" fitscreen 1 }
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wait { duration 1 }
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print { origin "bottomleft" row -3 column 3 duration 4 text "The image is maximized on the whole window." }
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wait { duration 4 }
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wait { duration 2 }
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# ======< Example 4 >======
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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# Now we will display the image sequentially at the corners of the Celestia window.
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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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print { origin "bottomleft" row -3 column 3 duration 4 text "Now the image will be shown at the corners of the window." }
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wait { duration 6 }
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overlay { xoffset -0.5 yoffset 0.5 alpha 0.5 filename "image.jpg" }
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wait { duration 3 }
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overlay { xoffset -0.5 yoffset -0.5 alpha 0.5 filename "image.jpg" }
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wait { duration 3 }
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overlay { xoffset 0.5 yoffset -0.5 alpha 0.5 filename "image.jpg" }
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wait { duration 3 }
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overlay { xoffset 0.5 yoffset 0.5 alpha 0.5 filename "image.jpg"}
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wait { duration 3 }
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print { origin "bottomleft" row -5 column 2 duration 5 text "End of script..." }
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wait { duration 5 }
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}
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-- ---------------------------------------------------------------------------------------
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-- This file demonstrates the 'celestia:overlay' command
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-- The command allows you to display an image in the format BMP, JPG, PNG, which must be
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-- Pre-located in the "images" folder or its sub-folders of the Celestia main directory.
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-- Supports image scaling, transparency and positioning.
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-- Script author: Vincent (June 2006, contact: vince.gian@free.fr)
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-- Modified by: Sergey Leonov aka Leserg <leserg@ua.fm>
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--
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-- This command accepts 6 arguments:
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--
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-- celestia:overlay ( float [duration], float [xoffset], float [yoffset], float [alpha], str [filename], int [fitscreen] )
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--
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-- duration - Determines the duration of the image display.
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-- If not specified, the default time is 3 seconds.
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--
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-- xoffset - Determines the placement of the image horizontally
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-- relative to the center of the working area of the Celestia window.
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-- If not specified, the default value is 0.0.
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-- Valid values are in the range from -1 to 1 relative to the center of the Celestia window:
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-- > if xoffset = -1 -> The image is placed in the center of the left edge
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-- Celestia window => You will only see the right half of the image;
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-- > if xoffset = 1 -> The image is placed in the center of the right edge
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-- Celestia window => You will only see the left half of the image;
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--
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-- yoffset - Determines the placement of the image vertically
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-- relative to the center of the working area of the Celestia window.
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-- If not specified, the default value is 0.0.
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-- Valid values are in the range from -1 to 1 relative to the center of the Celestia window:
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-- > if yoffset = -1 -> The image is placed in the center of the bottom edge
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-- of Celestia window => You will only see the upper half of the image;
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-- > if yoffset = 1 -> The image is placed in the center of the upper edge
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-- of Celestia window => You will only see the bottom half of the image;
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-- > if xoffset = 0.0 and yoffset = 0.0 -> The image is centered.
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--
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-- alpha - Determines the transparency of the image on the screen.
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-- If not specified, the default value is 1.0
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-- Valid values are in the range from 0.0 to 1.0
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-- > if alpha = 0.0 -> The image is completely transparent (ie invisible);
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-- > if alpha = 1.0 -> The image is opaque (i.e., fully visible).
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--
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-- filename - Specifies the name of the image file to display.
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-- The search for files is relative to the "images" subfolder,
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-- which should be located in the Celestia main directory.
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-- Thus, all the images for display using the script command must be in the
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-- "images" folder or its subfolders.
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--
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-- fitscreen - Determines the image zoom mode:
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-- > if fitscreen = 0 -> The image will be shown in the original size;
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-- > if fitscreen = 1 -> The image will be scaled by the Celestia window.
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-- If not specified, the default value is 0.
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-- --------------------------------------------------------------------------------------
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celestia:print ( "Welcome!\n\nYou start a script with examples of displaying the image on the screen.", 5.0, -1, -1, 3, 5 )
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wait (5)
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-- ======< Example 1 >======
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-- In the center of the Celestia window, display the image file "image.jpg". Time 6 seconds.
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-- Set the transparency level to 0.7. The parameter 'fitscreen' is used with default value,
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-- so do not specify it.
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celestia:overlay ( 6, 0, 0, 0.7, "image.jpg" )
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wait(1)
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celestia:print ( "The image is placed in the center of the window.", 4.0, -1, -1, 3, 5 )
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wait(4)
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wait(2)
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-- ======< Example 2 >======
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-- We will deduce on the center an image file "image.jpg" and we will deploy it on all window Celestia.
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-- Set the transparency level to 0.5. Time 6 seconds.
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celestia:overlay ( 6, 0, 0, 0.5, "image.jpg", 1 )
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wait(1)
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celestia:print ( "The image is maximized on the whole window.", 4.0, -1, -1, 3, 5 )
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wait(4)
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wait(2)
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-- ======< Example 3 >======
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-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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-- Now we will display the image sequentially at the corners of the Celestia window.
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-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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-- The original width of the image in pixels
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image_width = 512
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-- The original height of the image in pixels
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image_height = 256
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-- Determine the width and height for the working area of the Celestia window
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screen_width, screen_height = celestia:getscreendimension()
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xoffset_left = (image_width/screen_width) - 1
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-- (xoffset_right = - xoffset_left).
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xoffset_right = 1 - (image_width/screen_width)
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yoffset_bottom = (image_height/screen_height) - 1
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-- (yoffset_top = - yoffset_bottom).
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yoffset_top = 1 - (image_height/screen_height)
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celestia:print ( "Now the image will be shown at the corners of the window.", 5.0, -1, -1, 3, 5 )
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wait(6)
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celestia:overlay (3, xoffset_left, yoffset_bottom, 0.5, "image.jpg")
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wait(3)
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celestia:overlay (3, xoffset_left, yoffset_top, 0.5, "image.jpg")
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wait(3)
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celestia:overlay (3, xoffset_right, yoffset_top, 0.5, "image.jpg")
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wait(3)
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celestia:overlay (3, xoffset_right, yoffset_bottom, 0.5, "image.jpg")
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wait(3)
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wait(1)
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-- ======< Example 4 >======
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-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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-- Now the image will move around the screen with the 'ping-pong' effect.
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-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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x_pos = 0
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y_pos = 0
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x_mod = 0.05
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y_mod = 0.05
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script_running = true
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celestia:print ( "Now the image will move around the screen.", 5.0, -1, -1, 3, 5 )
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wait(5)
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wait(1)
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-- Define the keystroke processing function
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function celestia_keyboard_callback(str)
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script_running = false
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end
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-- Enable event handling by keystrokes
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celestia:requestkeyboard(true)
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-- Run the execution of the loop, which will work until you press any key on the keyboard.
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while script_running do
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image_width = 512
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image_height = 256
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screen_width, screen_height = celestia:getscreendimension()
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xoffset_left = (image_width/screen_width) - 1
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xoffset_right = - xoffset_left
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yoffset_bottom = (image_height/screen_height) - 1
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yoffset_top = - yoffset_bottom
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if x_pos < xoffset_left then
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x_pos = xoffset_left
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x_mod = 0.02
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end
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if x_pos > xoffset_right then
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x_pos = xoffset_right
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x_mod = -0.02
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end
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if y_pos < yoffset_bottom then
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y_pos = yoffset_bottom
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y_mod = 0.02
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end
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if y_pos > yoffset_top then
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y_pos = yoffset_top
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y_mod = -0.02
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end
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-- Display the image on the screen, according to the calculated coordinates.
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celestia:overlay (0.01, x_pos, y_pos, 0.5, "image.jpg")
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-- Calculate the new coordinates of the image.
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x_pos = x_pos + x_mod
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y_pos = y_pos + y_mod
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celestia:print("Press any key to end the script ...", 0.5, -1, -1, 2, 4)
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wait (0.01)
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end
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# ---------------------------------------------------------------------------------------
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# verbosity ( level [int] )
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#
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# level - Determines the mode of displaying information about the selected object.
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# The mode must be specified by an integer value (int) from 0 to 3:
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# 0 - Information display is disabled;
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# 1 - Short information display;
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# 2 - Detailed information display;
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# 3 - Very detailed information display.
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# ---------------------------------------------------------------------------------------
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{
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select { object "Sol/Mars" }
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follow {}
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gotolonglat { time 5 longitude 0 latitude 0 distance 5.5 }
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wait { duration 5 }
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wait { duration 2 }
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verbosity { level 0 }
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wait { duration 6 }
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verbosity { level 1 }
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wait { duration 4 }
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verbosity { level 2 }
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wait { duration 4 }
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verbosity { level 3 }
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wait { duration 4 }
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verbosity { level 2 }
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print { origin "bottomleft" row -5 column 2 duration 5 text "End of script (default information display mode is set)..." }
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wait { duration 5 }
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}
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-- ---------------------------------------------------------------------------------------
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-- celestia:verbosity ( int )
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--
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-- level - Determines the mode of displaying information about the selected object.
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-- The mode must be specified by an integer value (int) from 0 to 3:
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-- 0 - Information display is disabled;
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-- 1 - Short information display;
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-- 2 - Detailed information display;
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-- 3 - Very detailed information display.
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-- ---------------------------------------------------------------------------------------
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actual_renderflags = celestia:getrenderflags()
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sel0 = celestia:getselection()
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obs = celestia:getobserver()
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actual_obspos = obs:getposition()
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sel = celestia:find ("Sol/Mars")
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celestia:select(sel)
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obs:follow (sel)
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obs:gotolonglat (sel, 0, 0, 2e4, 5)
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wait (5)
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celestia:verbosity (0)
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wait (4)
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celestia:verbosity (1)
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wait (4)
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celestia:verbosity (2)
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wait (4)
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celestia:verbosity (3)
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wait (4)
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celestia:setrenderflags(actual_renderflags)
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obs:setposition(actual_obspos)
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celestia:select(sel0)
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obs:center(sel0, 3.0)
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wait(3.0)
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obs:follow(sel0)
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celestia:verbosity (2)
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celestia:print ( "End of script (default information display mode is set)...", 5.0, -1, -1, 3, 5 )
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wait (5)
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