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- [Instructor] Hi,

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and welcome to the first
section of this course.

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Abstraction and code management,

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making better use of OOP.

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In this section,

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we will start off with an
introduction to the final project,

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Thomas Was Late.

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We would then move on to structuring

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the Thomas Was Late code.

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In the later videos,

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we would learn building the game engine

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and coding the main function.

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Now we move on to the first
video of this section.

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The Thomas Was Late Game.

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In this video,

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we are going to take a look at
features of Thomas Was Late,

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creating a project from template

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and the project assets.

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At this point,

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if you haven't already,

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I would suggest you go and watch a video

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of Thomas Was Alone at
store.steampowered.com.

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Notice the really simple

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but aesthetically excellent graphics.

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The video also shows a
variety of gameplay challenges

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such as using the character
different attributes.

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Height, jump, power and so on.

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To keep our game simple
without losing the challenge,

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we will have fewer puzzle
features than Thomas Was Alone.

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But we'll have the additional challenge

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of creating the need for two
players to play cooperatively.

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Just to make sure the
game is not too easy,

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you will also make the players
race against the clock.

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Hence the name of our game is,

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Thomas Was Late.

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Our game will not be nearly
as advanced as the masterpiece

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that we're attempting to emulate.

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But we'll have a good selection

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of exciting gameplay features,

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like these.

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A clock that countdowns
from a time appropriate

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to the challenge of the level.

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Fire pits that are made of roar

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relative to the position of the player

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and respond the player at the start,

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if they fall in.

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Water pits have the same effect.

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But without the directional sound effects.

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Cooperative gameplay.

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Both of players will have
to get their characters

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to the goal within the allotted time.

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They will frequently
need to work together,

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for example the shorter
lower jumping bomb,

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will need to stand on his
friend's Thomas's head.

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The player will have the option
of switching between full

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and split screen.

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So he can attempt to control
both characters himself.

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Each level will be designed in
and loaded from a text file.

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This will make it really
easy to design varied

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and numerous levels.

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Take a look at this image of our game

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to see some of the features in action.

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And the component assets
that make up the game.

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Let's take a look at
each of those features.

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The image shows a simple HUD
that details the level number

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and the number of seconds remaining,

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until the players failed and
have to restart the level.

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You can also clearly see,

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the split screen co-op in action.

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Remember that this is optional.

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A single player can take
on the game full screen,

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while switching the camera
focus between Thomas and Bob.

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It is not very clear in this image

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but when a character dies,

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he will explode in a starburst,

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firework-like particle effect.

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The water and fire tiles
can be strategically place

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to make the level fun

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and force cooperation
between the characters.

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Notice Thomas and Bob,

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not only are they different in heights,

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but they also have significantly

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different jumping abilities.

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This means that Bob is dependent
upon Thomas for big jumps.

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And levels can be designed to
force Thomas to take a route

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that avoids him banging his head.

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In addition,

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the fire tiles will emit a roaring sound.

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This will be relative to
the position of Thomas.

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Not only will they be directional

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and come from either the
left or right speaker.

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They will also get louder and quieter

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as Thomas moves closer or
further away from the source.

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Here,

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Thomas and Bob arriving at the fire pit

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that Bob has no chance of
jumping over without help.

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This instance shows Bob
and Thomas collaborating

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to clear up precarious jump.

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Here we see how we can design puzzles,

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where our leap of faith is required

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in order to reach the goal.

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Look at this instance.

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See how we can design
oppressive cave systems

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of almost any size.

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We can also devise levels,

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where Bob and Thomas
are forced to split up

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and go different routes.

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Creating the Thomas Was Late project,

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is the same as the other two projects.

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I'll guide you through the
steps in visual studio.

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First you have select
file in the main menu

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and in that,

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you have to click new project.

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Now,

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make sure that Visual C++ is
selected in the left hand menu

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and then select HelloSFML,

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from the list of presented options.

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In the name field,

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type TWL in upper case

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and also ensure

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that the create directory for
solution option is checked.

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Now click OK.

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Now that our project is
created successfully,

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we need to copy the smfl.dll files

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which resides in SMFL,

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bin subfolder into the
main project directory.

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These are the dll files we have to copy.

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My main project directory
lies in documents.

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Visual Studio Stuff,

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Projects,

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TWL,

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TWL subfolder.

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Let's copy them into the TWL subfolder.

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So the project is now
setup and ready to go.

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The assets in this project
are even more numerous

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and diverse than the zombie arena game.

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As usual the assets include a font

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for the writing on the screen.

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Sound effects for different
actions such as jumping,

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reaching the goal or
the distant roar of fire

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and of course graphics for Thomas and Bob.

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As well as the spreadsheet
for all the background tiles.

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All the assets required for the game

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are included in the download bundle.

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They can be found in
section one graphics folder

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and sound folders respectively.

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As you can see,

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in section one graphics folder,

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we have images for background,

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Bob and Thomas,

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and this is our tiles sheet

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that we are going to use for
all of our background tiles.

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This is the sound folder
where we have various sounds

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which are fallinfire, fallinwater,

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fire1, jump and reach goal.

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Now in the fonts folder,

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the font that is required
has not been supplied.

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This is because I wanted to
avoid any possible ambiguity

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regarding license.

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This will not cause a problem though,

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as I will show you exactly where and how,

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to choose and download fonts for yourself.

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In addition to the
graphics, sound and fonts

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that we have come to expect,

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this game has two new asset types.

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There are level design files

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and GLSL shader programs.

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Let's find out about each of them.

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Levels are all created in a text file,

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by using the numbers zero through three,

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we can build level designs
to challenge players.

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All the level designs
are in the levels folder

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in the same directory as the other assets.

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In addition to these level design assets,

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we have a special type of graphical asset

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called shaders.

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Shaders are programs written in GLSL,

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Graphics Library Shading Language.

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Don't worry about having
to learn another language

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as we don't need to get too
in-depth to take advantage

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of shaders.

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Shaders are a special

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as they are entire programs
separate from our C++ code

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which are executed by the
GPU each and every frame.

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In fact some of these shader
programs are run every frame

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for every pixel.

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Let's see how we're
going to use the assets.

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The graphical assets make up the parts

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of the scene of our game.

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Take a look at the graphical assets

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and it should be clear where
in our game they will be used.

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If the tiles on the tiles_sheet graphic

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look a little different,

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this is because they
are partly transparent

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and the background showing
through changes them a little.

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If the background graphic
looks totally different

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to the actual background in the game,

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that is because the shader
programs we will write

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will manipulate each and every pixel,

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each and every frame to create
a kind of moulton effect.

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Now for the sound assets.

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These are all .wav format.

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These are files that
contain the sound effects

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we will play at certain
events throughout the game.

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First, fallinfire.wav.

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A sound that will be played
when the player's head,

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goes into the fire and the
player has no chance of escape.

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Fallinwater.wav.

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Water has the same end effect as fire,

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death.

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This sound effect notifies the player,

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they need to start from
the beginning of the level.

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Fire1.wav.

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This sound effect is recorded in mono.

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It will be played in different volumes

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based on the player's
distance from fire tiles

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and from different speakers
based on whether the player

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is to the left or the
right of the fire tile.

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Clearly we will need to
learn a few more tricks

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to implement this functionality.

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Jump.wav.

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A pleasing slightly
predictable whooping sound

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when the player jumps.

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Reachgoal.wav.

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A pleasing victory sound
from when the player

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or players gets both characters,

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Thomas and Bob,

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to the goal tile.

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Now that we've decided
which assets we'll use,

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it is time to add them to the project.

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In case you using different assets,

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simply replace to your appropriate sound

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or graphic file with your chosen file,

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using exactly the same file name.

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First,

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we have to browse to the visual directory.

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My project directory is highlighted here.

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This is the TWL subfolder.

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Create five new folders within this folder

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and name them as fonts,

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graphics, levels, shaders and sound.

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Now from the download bundle,

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copy the entire contents of section one

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into the TWL graphics folder.

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I've copied and pasted them here.

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Summarily,

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copy the entire contents of sound folder

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from the download bundle

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into the TWL sound folder.

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You can see I pasted the entire content

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of sound folder here.

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Now for the fonts.

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Visit dafont.com in your web browser.

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And then download the roboto light font.

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You'll get this roboto.zip file.

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Extract the contents of the zip download.

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This is the folder
created after extraction.

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In this folder,

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select the Roboto-Light.ttv file.

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Copy this to our fonts folder.

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We are done with fonts,
graphics and sound.

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Now we're left with levels and shaders.

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From the download bundle,

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copy the entire contents

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of section one levels
into our levels folder.

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Summarily for shaders,

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from the download bundle,

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copy the entire contents
of section one shaders

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into our shaders folder.

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Now that we have a new project
along with all the assets

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we will need for the entire project,

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we can talk about how we will structure

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the game engine code.

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In this video,

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we've looked to the Thomas Was Late game,

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creating the project and from template

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and the project assets.

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Cool.

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Next we'll see structuring
the Thomas Was Late code.