com.brackeen.javagamebook.bsp2D
Class BSPRenderer

java.lang.Object
  com.brackeen.javagamebook.graphics3D.PolygonRenderer
      com.brackeen.javagamebook.graphics3D.FastTexturedPolygonRenderer
          com.brackeen.javagamebook.graphics3D.ShadedSurfacePolygonRenderer
              com.brackeen.javagamebook.graphics3D.ZBufferedRenderer
                  com.brackeen.javagamebook.bsp2D.BSPRenderer

All Implemented Interfaces:

BSPTreeTraverseListener, GameObjectRenderer

public class BSPRenderer

extends ZBufferedRenderer

implements BSPTreeTraverseListener

The BSPRenderer class is a renderer capable of drawing polygons in a BSP tree and any polygon objects in the scene. When drawing BSP polygons, the BSPRenderer writes the BSP polygon depth to a z-buffer. Polygon objects use the z-buffer to determine their visibility within the scene on a per-pixel basis.

Nested Class Summary

Nested classes inherited from class com.brackeen.javagamebook.graphics3D.ZBufferedRenderer

ZBufferedRenderer.PowerOf2TextureZRenderer, ZBufferedRenderer.ShadedSurfaceZRenderer, ZBufferedRenderer.ShadedTextureZRenderer

Nested classes inherited from class com.brackeen.javagamebook.graphics3D.FastTexturedPolygonRenderer

FastTexturedPolygonRenderer.Method0, FastTexturedPolygonRenderer.Method1, FastTexturedPolygonRenderer.Method2, FastTexturedPolygonRenderer.Method3, FastTexturedPolygonRenderer.PowerOf2TextureRenderer, FastTexturedPolygonRenderer.ScanRenderer, FastTexturedPolygonRenderer.ShadedSurfaceRenderer, FastTexturedPolygonRenderer.ShadedTextureRenderer

Field Summary

Fields inherited from class com.brackeen.javagamebook.graphics3D.FastTexturedPolygonRenderer

INTERP_SIZE, INTERP_SIZE_BITS, SCALE, SCALE_BITS

Constructor Summary

BSPRenderer(Transform3D camera, ViewWindow viewWindow)
Creates a new BSP renderer with the specified camera object and view window.

Method Summary

void	draw(java.awt.Graphics2D g, BSPTree tree) Draws the visible polygons in a BSP tree based on the camera location.
void	endFrame(java.awt.Graphics2D g) Indicates the end of rendering of a frame.
void	setGameObjectManager(GameObjectManager gameObjectManager) Sets the GamebjectManager.
void	startFrame(java.awt.Graphics2D g) Indicates the start of rendering of a frame.
boolean	visitPolygon(BSPPolygon poly, boolean isBack) Visits a BSP polygon.

Methods inherited from class com.brackeen.javagamebook.graphics3D.ZBufferedRenderer

draw, draw

Methods inherited from class com.brackeen.javagamebook.graphics3D.PolygonRenderer

draw, getCamera

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BSPRenderer

public BSPRenderer(Transform3D camera,
                   ViewWindow viewWindow)

Creates a new BSP renderer with the specified camera object and view window.

Method Detail

setGameObjectManager

public void setGameObjectManager(GameObjectManager gameObjectManager)

Sets the GamebjectManager. The BSP traverser sets the visibily of the objects.

startFrame

public void startFrame(java.awt.Graphics2D g)

Description copied from class: PolygonRenderer

Indicates the start of rendering of a frame. This method should be called every frame before any polygons are drawn.

Overrides:

startFrame in class ZBufferedRenderer

endFrame

public void endFrame(java.awt.Graphics2D g)

Description copied from class: PolygonRenderer

Indicates the end of rendering of a frame. This method should be called every frame after all polygons are drawn.

Overrides:

endFrame in class ShadedSurfacePolygonRenderer

draw

public void draw(java.awt.Graphics2D g,
                 BSPTree tree)

Draws the visible polygons in a BSP tree based on the camera location. The polygons are drawn front-to-back.

visitPolygon

public boolean visitPolygon(BSPPolygon poly,
                            boolean isBack)

Description copied from interface: BSPTreeTraverseListener

Visits a BSP polygon. Called by a BSPTreeTraverer. If this method returns true, the BSPTreeTraverer will stop the current traversal. Otherwise, the BSPTreeTraverer will continue if there are polygons in the tree that have not yet been traversed.

Specified by:

visitPolygon in interface BSPTreeTraverseListener