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(svn r9558) -Documentation: doxygen and comment changes: 'T' now. Almost done

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belugas
2007-04-04 03:21:14 +00:00
parent 695ff8dd37
commit 4c4f2a34ef
21 changed files with 435 additions and 370 deletions
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43
src/tgp.cpp
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@@ -1,5 +1,7 @@
/* $Id$ */
/** @file tgp.cpp OTTD Perlin Noise Landscape Generator, aka TerraGenesis Perlin */
#include "stdafx.h"
#include <math.h>
#include "openttd.h"
@@ -17,7 +19,6 @@
#include "helpers.hpp"
/*
* OTTD Perlin Noise Landscape Generator, aka TerraGenesis Perlin
*
* Quickie guide to Perlin Noise
* Perlin noise is a predictable pseudo random number sequence. By generating
@@ -167,11 +168,11 @@ static const int amplitude_decimal_bits = 10;
/** Height map - allocated array of heights (MapSizeX() + 1) x (MapSizeY() + 1) */
struct HeightMap
{
height_t *h; //! array of heights
uint dim_x; //! height map size_x MapSizeX() + 1
uint total_size; //! height map total size
uint size_x; //! MapSizeX()
uint size_y; //! MapSizeY()
height_t *h; //< array of heights
uint dim_x; //< height map size_x MapSizeX() + 1
uint total_size; //< height map total size
uint size_x; //< MapSizeX()
uint size_y; //< MapSizeY()
};
/** Global height map instance */
@@ -200,13 +201,13 @@ static HeightMap _height_map = {NULL, 0, 0, 0, 0};
/** Noise amplitudes (multiplied by 1024)
* - indexed by "smoothness setting" and log2(frequency) */
static const amplitude_t _amplitudes_by_smoothness_and_frequency[4][12] = {
// Very smooth
/* Very smooth */
{1000, 350, 123, 43, 15, 1, 1, 0, 0, 0, 0, 0},
// Smooth
/* Smooth */
{1000, 1000, 403, 200, 64, 8, 1, 0, 0, 0, 0, 0},
// Rough
/* Rough */
{1000, 1200, 800, 500, 200, 16, 4, 0, 0, 0, 0, 0},
// Very Rough
/* Very Rough */
{1500, 1000, 1200, 1000, 500, 32, 20, 0, 0, 0, 0, 0},
};
@@ -215,13 +216,17 @@ static const amplitude_t _water_percent[4] = {20, 80, 250, 400};
/** Desired maximum height - indexed by _opt.diff.terrain_type */
static const int8 _max_height[4] = {
6, // Very flat
9, // Flat
12, // Hilly
15 // Mountainous
6, ///< Very flat
9, ///< Flat
12, ///< Hilly
15 ///< Mountainous
};
/** Check if a X/Y set are within the map. */
/** Check if a X/Y set are within the map.
* @param x coordinate x
* @param y coordinate y
* @return true if within the map
*/
static inline bool IsValidXY(uint x, uint y)
{
return ((int)x) >= 0 && x < _height_map.size_x && ((int)y) >= 0 && y < _height_map.size_y;
@@ -680,10 +685,10 @@ static inline int perlin_landXY(uint x, uint y)
/* The following decimals are the octave power modifiers for the Perlin noise */
static const double _perlin_p_values[][7] = { // perlin frequency per power
{ 0.35, 0.35, 0.35, 0.35, 0.35, 0.25, 0.539 }, // Very smooth
{ 0.45, 0.55, 0.45, 0.45, 0.35, 0.25, 0.89 }, // Smooth
{ 0.85, 0.80, 0.70, 0.45, 0.45, 0.35, 1.825 }, // Rough 1.825
{ 0.95, 0.85, 0.80, 0.55, 0.55, 0.45, 2.245 } // Very Rough 2.25
{ 0.35, 0.35, 0.35, 0.35, 0.35, 0.25, 0.539 }, ///< Very smooth
{ 0.45, 0.55, 0.45, 0.45, 0.35, 0.25, 0.89 }, ///< Smooth
{ 0.85, 0.80, 0.70, 0.45, 0.45, 0.35, 1.825 }, ///< Rough 1.825
{ 0.95, 0.85, 0.80, 0.55, 0.55, 0.45, 2.245 } //< Very Rough 2.25
};
/**