Package eu.svjatoslav.sixth.e3d.examples.terrain_demo

Class DiamondSquareTerrain

java.lang.Object

eu.svjatoslav.sixth.e3d.renderer.raster.shapes.AbstractShape

eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.AbstractCompositeShape

eu.svjatoslav.sixth.e3d.examples.terrain_demo.DiamondSquareTerrain

public class DiamondSquareTerrain
extends eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.AbstractCompositeShape

A procedurally generated terrain mesh using the diamond-square algorithm. Creates a grid of triangular polygons with height variation for mountains.

Field Summary

Fields inherited from class eu.svjatoslav.sixth.e3d.renderer.raster.shapes.AbstractShape

cachedBoundingBox, mouseInteractionController

Constructor Summary

Constructors

Constructor	Description
DiamondSquareTerrain(int gridSize, double minHeight, double maxHeight, long seed)	Creates a diamond-square terrain with the specified parameters.

Method Summary

Modifier and Type	Method	Description
double	getHeightAt(double worldX, double worldZ)	Returns the terrain height at the specified world XZ coordinates.

Methods inherited from class eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.AbstractCompositeShape

addShape, addShape, beforeTransformHook, extractSolidPolygons, getBoundingBox, getGroup, getLocation, getSubShapesRegistry, getTransform, getViewSpaceTracker, hideGroup, intersect, removeGroup, setBackfaceCulling, setCacheNeedsRebuild, setColor, setGroupForUngrouped, setMouseInteractionController, setRootComposite, setShadingEnabled, setTransform, showGroup, subtract, transform, union

Methods inherited from class eu.svjatoslav.sixth.e3d.renderer.raster.shapes.AbstractShape

invalidateBounds

Methods inherited from class java.lang.Object

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

Constructor Details

DiamondSquareTerrain

public DiamondSquareTerrain(int gridSize,
 double minHeight,
 double maxHeight,
 long seed)

Creates a diamond-square terrain with the specified parameters.

Parameters:

gridSize - the size of the heightmap grid (must be 2^n + 1)

minHeight - the minimum terrain height

maxHeight - the maximum terrain height

seed - random seed for reproducible terrain

Method Details

getHeightAt

public double getHeightAt(double worldX,
 double worldZ)

Returns the terrain height at the specified world XZ coordinates.

Parameters:

worldX - the world X coordinate

worldZ - the world Z coordinate

Returns:

the terrain height at that position, or 0 if outside terrain bounds