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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

where we get a research paper on Nano chemistry....?
Maira Reply
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
what is variations in raman spectra for nanomaterials
Jyoti Reply
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
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
analytical skills graphene is prepared to kill any type viruses .
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
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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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