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Assignment
Assignment - Task
• Title
– Develop from scratch an interactive 3D game
• Task
– The aim of the assignment is two fold: (a) develop a
small game engine in C++ and (b) develop the graphics
and physics components for an interactive 3D game
• These components should that cover the general motion of
a rigid body in three dimensional space, including issues of
collision of bodies and their subsequent motion
Game Engine - Task
• Task
– The aim of the game engine component is to
implement from scratch a set of computer
graphics classes that will be used for
• Modelling the scene of the game
• creating the physics components of different interactive
computer games
Game Engine - Specification
• Based on the vector theory you should
implement a 3D vector class in C++ which will
be used as a basis for the rest of the course
• Based on the matrices theory you should
implement a 3×3 matrix class in C++ which will
be used as a basis for the rest of the course
• Finally you should implement a ray class in
C++
Game Engine - Minimum
Implementation
• The basic implementation should include the
following:
– A 3D vector class, which you can call TVector, with
three components (x, y and z)
– A 3×3 matrix class, which you can call Tmatrix,
with a two-dimensional array (i.e. double
_Mx[3][3])
– A Ray class which will be based on the vector and
matrix class
Game Engine - Minimum Functionality
• Unit vector (for vector class)
• Magnitude of a vector (for vector class)
• Invert a vector (for vector class)
• Add two vectors (for vector class)
• Subtract two vectors (for vector class)
• Dot product vector (for vector class)
• Cross product vector (for vector class)
• Addition (for matrix class)
• Subtraction (for matrix class)
• Multiplication (for matrix class)
• Transpose (for matrix class)
• Inverse (for matrix class)
• Calculate distance between two rays (for ray class)
• Calculate distance between a ray and a point (for ray class)
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Game Engine - Extra Features
• Extra credit will be given for adding more
features to the classes
Game Specification
• The traditional 2D Breakout is one of the first
interactive video games available on personal
computers
• The main idea is to knock down a set of 2D bricks
using a 2D racket and a ball moving at constant
speed
• As soon as the ball collides with a brick then it
vanishes
• The goal of the game is to make all bricks disappear
from the game arena
• To increase the level of difficulty and game-play,
later versions make use of multiple rackets and balls
and vary the speed of the ball
Game Specification .
• The 3D Breakout, a cylindrical wall that
consists of 3D bricks, exists in the middle of
the simulation area
Game Specification ..
• A single player controls three curved bats, each
positioned at an angle of 120 degrees to each
other
• The bats can move clockwise or anticlockwise
using the keyboard arrow keys as input
• The cylindrical wall is situated in the middle of
the circle and is constructed by twelve bricks in
such a way that it looks like a shaft
• The main idea of the 3D game is to knock down
all the 3D bricks and ‘destroy’ the well
Game - Graphics Minimum
Implementation
• Colour
– Bats, Ball and Bricks of the well
• Manipulate the scene
– Rotate, translate and scale
• Change camera positions
– Perspective view, top view and ball view
• Transparency
– Bats and bricks of the well
• Add lighting to the game
– Ambient light, diffuse light and specular light
• Record the score
• Texturing
– Ground
Game - Graphics Extra Features
• Appropriate gaming scenario
• Logo introduction page
• Increase/decrease the speed of the ball
• Use of textures to the bricks and bats
• Add sound
• Special effects
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Game - Physics Minimum
Implementation
• Construct from scratch a gaming environment
– Three bats
– One well
– A ground
– One ball
• A real-time simulation of a ball
• Collision detection between:
– Ball-bats
– Ball-well
– Ball-Invisible wall
Game - Physics Extra Features
• Extra credit will be given for adding more
features to the game
• Some ideas for improvement include the
following:
– Friction
– Weight
– Make the ball bounce
– Gravity
– Deformations
Report Structure
• Title page
• Contents
• Abstract (or summary)
• Introduction
• Background theory
• Methodology and results
• Conclusions
• References
• Appendices