main.cpp File Reference

Main. More...

#include <stdio.h>
#include <stdlib.h>
#include "defines.h"
#include "perlin.h"

Functions
void	GenerateAndSave (const unsigned int x, const unsigned int y, const char *filename)
	Generate and save a cell of terrain elevations.
int	main (int argc, char *argv[])
	Main.

Variables
const int	CELLSIZE = 4096
	Number of vertices on side of square cell.
int	g_nNumOctaves = 8
	Number of octaves.
float	g_fAltitude = 5000.0f
	Altitude cap.
float	g_fMu = 1.02f
	Mu, the gradient magnitude exponent.

Function Documentation

void GenerateAndSave	(	const unsigned int	x,
		const unsigned int	y,
		const char *	filename
	)

Generate and save a cell of noise as a DEM file. The output file will have a ".asc" file expension, which is standard for DEM files.

Parameters

x	X coordinate of corner of cell.
y	Y coordinate of corner of cell.
filename	Name of DEM file for output, without extension.

int main	(	int	argc,
		char *	argv[]
	)

Prompts the user for a random number seed, number of octaves, mu, and an elevation cap, saves a DEM file output.asc of terrain elevations generated using Perlin noise with an exponentially distributed gradient magnitude.

Parameters

argc	Argument count
argv	Arguments.

Returns

0 for success, 1 for failure.