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added ore density calculation; added ore growth logic

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This commit is contained in:
Chris Forbes
2009-11-02 23:04:36 +13:00
parent 3ada04ac8a
commit c615920209
3 changed files with 118 additions and 33 deletions
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113
OpenRa.FileFormats/Map.cs
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@@ -3,6 +3,7 @@ using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Drawing;
using System.Linq;
namespace OpenRa.FileFormats
{
@@ -22,6 +23,33 @@ namespace OpenRa.FileFormats
public readonly TileReference[ , ] MapTiles = new TileReference[ 128, 128 ];
public readonly List<TreeReference> Trees = new List<TreeReference>();
public static bool[] overlayIsFence =
{
true, true, true, true, true,
false, false, false, false,
false, false, false, false,
false, false, false, false, false, false, false,
false, false, false, true, true,
};
public static bool[] overlayIsOre =
{
false, false, false, false, false,
true, true, true, true,
false, false, false, false,
false, false, false, false, false, false, false,
false, false, false, false, false,
};
public static bool[] overlayIsGems =
{
false, false, false, false, false,
false, false, false, false,
true, true, true, true,
false, false, false, false, false, false, false,
false, false, false, false, false,
};
static string Truncate( string s, int maxLength )
{
return s.Length <= maxLength ? s : s.Substring(0,maxLength );
@@ -47,9 +75,90 @@ namespace OpenRa.FileFormats
Width = int.Parse(map.GetValue("Width", "0"));
Height = int.Parse(map.GetValue("Height", "0"));
UnpackTileData( ReadPackedSection( file.GetSection( "MapPack" ) ) );
UnpackOverlayData( ReadPackedSection( file.GetSection( "OverlayPack" ) ) );
UnpackTileData(ReadPackedSection(file.GetSection("MapPack")));
UnpackOverlayData(ReadPackedSection(file.GetSection("OverlayPack")));
ReadTrees(file);
InitOreDensity();
}
IEnumerable<int2> AdjacentTiles(int2 p)
{
for (var u = -1; u < 2; u++)
for (var v = -1; v < 2; v++)
yield return new int2(u, v) + p;
}
byte GetOreDensity(int i, int j)
{
return (byte)Math.Min(11, (3 * AdjacentTiles(new int2(i, j)).Sum(
p => ContainsOre(p.X, p.Y) ? 1 : 0) / 2));
}
byte GetGemDensity(int i, int j)
{
return (byte)Math.Min(2, (AdjacentTiles(new int2(i, j)).Sum(
p => ContainsGem(p.X, p.Y) ? 1 : 0) / 3));
}
void InitOreDensity()
{
for( int j = 0; j < 128; j++ )
for (int i = 0; i < 128; i++)
{
if (ContainsOre(i,j)) MapTiles[i, j].density = GetOreDensity(i, j);
if (ContainsGem(i,j)) MapTiles[i,j].density = GetGemDensity(i,j);
}
}
bool HasOverlay(int i, int j)
{
return MapTiles[i, j].overlay < overlayIsOre.Length;
}
bool ContainsOre(int i, int j)
{
return HasOverlay(i,j) && overlayIsOre[MapTiles[i,j].overlay];
}
bool ContainsGem(int i, int j)
{
return HasOverlay(i, j) && overlayIsGems[MapTiles[i, j].overlay];
}
public void GrowOre( Func<int2, bool> canSpreadIntoCell ) /* todo: deal with ore pits */
{
/* phase 1: grow into neighboring regions */
var newOverlay = new byte[128, 128];
for( int j = 1; j < 127; j++ )
for (int i = 1; i < 127; i++)
{
newOverlay[i,j] = 0xff;
if (!HasOverlay(i, j) && GetOreDensity(i, j) > 0 && canSpreadIntoCell(new int2(i,j)))
newOverlay[i, j] = 5; /* todo: randomize [5..8] */
if (!HasOverlay(i, j) && GetGemDensity(i, j) > 0 && canSpreadIntoCell(new int2(i, j)))
newOverlay[i, j] = 9; /* todo: randomize [9..12] */
}
for (int j = 1; j < 127; j++)
for (int i = 1; i < 127; i++)
if (newOverlay[i, j] != 0xff)
MapTiles[i, j].overlay = newOverlay[i, j];
/* phase 2: increase density of existing areas */
var newDensity = new byte[128, 128];
for (int j = 1; j < 127; j++)
for (int i = 1; i < 127; i++)
{
if (ContainsOre(i, j)) newDensity[i,j] = GetOreDensity(i, j);
if (ContainsGem(i, j)) newDensity[i,j] = GetGemDensity(i, j);
}
for (int j = 1; j < 127; j++)
for (int i = 1; i < 127; i++)
if (MapTiles[i, j].density < newDensity[i, j])
MapTiles[i, j].density = newDensity[i, j];
}
static MemoryStream ReadPackedSection(IniSection mapPackSection)