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The UFO image

The UFO image is shown in Figure 2 . Note the green background. All of the green pixels in the UFO image will be replaced by transparent black pixels whenthe program runs. I took advantage of the Color Key transparency feature by setting the properties for the UFO image as shown in Figure 1 .

Figure 2 . The UFO image.

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Image of the planet

Figure 3 shows a reduced view of the image showing the planet that I used as a background image.

Figure 3 . Reduced version of the alien planet image.

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The version that I used in the program was 640 pixels wide and 480 pixels high. However, that is too large to publish comfortably in this narrow publication format,so I reduced the image in Figure 3 to 450x338 for publication purposes only. The source code that you will see later is based on an image size of 640x480.

The screen output

Figure 4 through Figure 12 show nine screen shots taken while the animation was running.

In Figure 4 , the UFO is approaching the planet from some distance away. Note that the green portion of the UFO image has become transparent. Also note the sizeof the planet and its moon for comparison with subsequent screen shots.

Figure 4 . The UFO approaching the planet from some distance away.

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Flying a relatively straight path

In Figure 5 through Figure 7 , the UFO continues along a relatively straight path flying over the planet and getting closer to the surface of the planet all thetime. Note how the planet increases in size from one image to the next, giving the illusion that the UFO is getting closer to the surface of the planet.

The background is moving

Note also that the position of the UFO in the game window is not changing. Instead an illusion of motion is created by causing the background to change.This is a technique that was used for many years in the movies to create the illusion that actors were in a car driving along the highway when in fact, thecar was standing still inside a studio. The image of the stationary car was superimposed on a moving background image.

Figure 5 . Flying over the planet.

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Figure 6 . Flying over the planet.

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Figure 7 . Flying over the planet.

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Preparing to change course

In Figure 8 , the UFO has gone about as far as it is going to go along the original course. It is preparing to change course and come back towards thecamera getting ever closer to the surface of the planet.

Figure 8 . Preparing to change course.

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Flying towards the camera

In Figure 9 and Figure 10 , the UFO has changed course. It is now flying towards the camera very close to the surface of the planet. You can even see some surfacefeatures on the planet (due to the distortion that is produced when a bitmap image is enlarged).

Figure 9 . Flying towards the camera very close to the surface of the planet.

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Figure 10 . Still flying towards the camera very close to the surface of the planet.

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In Figure 11 , the UFO is almost touching the rings around the planet.

Figure 11 . Almost touching the rings around the planet.

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Heading for home

In Figure 12 , the UFO leaves the planet and heads for home. Shortly after this, the program will reset and repeat the animation sequence.

Questions & Answers

who was the first nanotechnologist
Lizzy Reply
technologist's thinker father is Richard Feynman but the literature first user scientist Nario Tagunichi.
Norio Taniguchi
I need help
anyone have book of Abdel Salam Hamdy Makhlouf book in pdf Fundamentals of Nanoparticles: Classifications, Synthesis
Naeem Reply
what happen with The nano material on The deep space.?
pedro Reply
It could change the whole space science.
the characteristics of nano materials can be studied by solving which equation?
sibaram Reply
plz answer fast
synthesis of nano materials by chemical reaction taking place in aqueous solvents under high temperature and pressure is call?
hydrothermal synthesis
how can chip be made from sand
Eke Reply
is this allso about nanoscale material
are nano particles real
Missy Reply
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
where is the latest information on a no technology how can I find it
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
Application of nanotechnology in medicine
has a lot of application modern world
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
Nasa has use it in the 60's, copper as water purification in the moon travel.
nanocopper obvius
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
STM - Scanning Tunneling Microscope.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Xna game studio. OpenStax CNX. Feb 28, 2014 Download for free at https://legacy.cnx.org/content/col11634/1.6
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