3D Game Engine

Using oop principles one can create personal 3D Universe.

At this moment users can use engine to draw rotate and move different simple and complex objects.

At this point engine supports drawing of following objects:

1. Cube
2. Paralleliped
3. Pyramid
4. Plane
5. Sphere
6. PartsObject
7. ComplexObject (Multiple objects rotating over one axis(its x, y and z))
8. Cylinder(in progress)

Basic concepts

• Every object extends Object3D
• Every object has DeepPoints which is an array of points in space
• Every object can be rotated depending their rotation param
• Every object can be moved either by changing its x, y and z or using the MovingService

DeepPoint:

• float x, float y, float z

What params do we need for each element

Cube parameters:

• float x, float y, float z, float edgeLength, Paint edgePaint, Paint wallPaint, float rotation

Parallelepiped parameters:

• float x, float y, float z, float aLength, float bLength, float cLength, Paint edgePaint, Paint wallPaint, float rotation

Pyramid parameters:

• float x, float y, float z, Paint edgePaint, Paint wallPaint, float rotation, float aLength, float bLength, float h(the depth of pyramid)

Plane parameters:

• float x, float y, float z, Paint edgePaint, Paint wallPaint, float rotation, float aLength, float bLength

Sphere parameters:

• float x, float y, float z, Paint edgePaint, Paint wallPaint, float rotation, float radius

PartsObject parameters(Object that is customized by the deepPoints and parts it has):

• float x, float y, float z, Paint edgePaint, Paint wallPaint, float rotation, DeepPoint[] points, ArrayList<DeepPoint[]> parts

ComplexObject parameters:

• float x, float y, float z, Paint edgePaint, Paint wallPaint, float rotation, ArrayList objects

Services

• DrawingService(knows how to draw objects)
• PaintService(knows how to generate paints for different objects)
• SortingService(used by drawing service and arranges objects so they are sorted by depth parameter)
• BreakingService(breaks object to smaller objects so every one is calculated more precisely where it is relative to others)
• CanvasService(updates and draws the GamePanel state) Canvas Service only has method updateAndDraw which requires GamePanel as param.