Disable gfMoreWind for land objects on turn end only after a fixed-time delay
15s sounds much, but it's the average amount for gfMineStrike mines to settle
naturally. And it would be very confusing to see falling mines suddenly not
caring about gfMoreWind for no apparent reason.
Note this whole thing is a giant hack anyway, to prevent a turn being
blocked by infinitely bouncing mines.
The better solution would be to help gfMoreWind-affected land objects settle
naturally more reliably even under extreme wind.
But this commit is "good enough" for now.
If you don't like the delay, you can always tweak the constant.
{$INCLUDE "options.inc"}
unit uLandGenPerlin;
interface
procedure GenPerlin;
implementation
uses uVariables
, uConsts
, uRandom
, uLandOutline // FillLand
, uUtils
;
var p: array[0..511] of LongInt;
const fadear: array[byte] of LongInt =
(0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 3, 4, 6, 7, 9, 10, 12,
14, 17, 19, 22, 25, 29, 32, 36, 40, 45, 49, 54, 60, 65, 71,
77, 84, 91, 98, 105, 113, 121, 130, 139, 148, 158, 167, 178,
188, 199, 211, 222, 234, 247, 259, 273, 286, 300, 314, 329, 344,
359, 374, 390, 407, 424, 441, 458, 476, 494, 512, 531, 550,
570, 589, 609, 630, 651, 672, 693, 715, 737, 759, 782, 805, 828,
851, 875, 899, 923, 948, 973, 998, 1023, 1049, 1074, 1100, 1127,
1153, 1180, 1207, 1234, 1261, 1289, 1316, 1344, 1372, 1400, 1429,
1457, 1486, 1515, 1543, 1572, 1602, 1631, 1660, 1690, 1719, 1749,
1778, 1808, 1838, 1868, 1898, 1928, 1958, 1988, 2018, 2048, 2077,
2107, 2137, 2167, 2197, 2227, 2257, 2287, 2317, 2346, 2376, 2405,
2435, 2464, 2493, 2523, 2552, 2580, 2609, 2638, 2666, 2695, 2723,
2751, 2779, 2806, 2834, 2861, 2888, 2915, 2942, 2968, 2995, 3021,
3046, 3072, 3097, 3122, 3147, 3172, 3196, 3220, 3244, 3267, 3290,
3313, 3336, 3358, 3380, 3402, 3423, 3444, 3465, 3486, 3506, 3525,
3545, 3564, 3583, 3601, 3619, 3637, 3654, 3672, 3688, 3705, 3721,
3736, 3751, 3766, 3781, 3795, 3809, 3822, 3836, 3848, 3861, 3873,
3884, 3896, 3907, 3917, 3928, 3937, 3947, 3956, 3965, 3974, 3982,
3990, 3997, 4004, 4011, 4018, 4024, 4030, 4035, 4041, 4046, 4050,
4055, 4059, 4063, 4066, 4070, 4073, 4076, 4078, 4081, 4083, 4085,
4086, 4088, 4089, 4091, 4092, 4092, 4093, 4094, 4094, 4095, 4095,
4095, 4095, 4095, 4095, 4095);
function fade(t: LongInt) : LongInt; inline;
var t0, t1: LongInt;
begin
t0:= fadear[t shr 8];
if t0 = fadear[255] then
t1:= t0
else
t1:= fadear[t shr 8 + 1];
fade:= t0 + ((t and 255) * (t1 - t0) shr 8)
end;
function lerp(t, a, b: LongInt) : LongInt; inline;
begin
lerp:= a + ((Int64(b) - a) * t shr 12)
end;
function grad(hash, x, y: LongInt) : LongInt; inline;
var h, v, u: LongInt;
begin
h:= hash and 15;
if h < 8 then u:= x else u:= y;
if h < 4 then v:= y else
if (h = 12) or (h = 14) then v:= x else v:= 0;
if (h and 1) <> 0 then u:= -u;
if (h and 2) <> 0 then v:= -v;
grad:= u + v
end;
function inoise(x, y: LongInt) : LongInt; inline;
const N = $10000;
var xx, yy, u, v, A, AA, AB, B, BA, BB: LongInt;
begin
xx:= (x shr 16) and 255;
yy:= (y shr 16) and 255;
x:= x and $FFFF;
y:= y and $FFFF;
u:= fade(x);
v:= fade(y);
A:= p[xx ] + yy; AA:= p[A]; AB:= p[A + 1];
B:= p[xx + 1] + yy; BA:= p[B]; BB:= p[B + 1];
inoise:=
lerp(v, lerp(u, grad(p[AA ], x , y ),
grad(p[BA ], x-N , y )),
lerp(u, grad(p[AB ], x , y-N),
grad(p[BB ], x-N , y-N)));
end;
procedure inoise_setup();
var i, ii, t: Longword;
begin
for i:= 0 to 254 do
p[i]:= i + 1;
p[255]:= 0;
for i:= 0 to 254 do
begin
ii:= GetRandom(256 - i) + i;
t:= p[i];
p[i]:= p[ii];
p[ii]:= t
end;
for i:= 0 to 255 do
p[256 + i]:= p[i];
end;
const width = 4096;
height = 2048;
minY = 500;
//bottomPlateHeight = 90;
//bottomPlateMargin = 1200;
margin = 200;
procedure GenPerlin;
var y, x, di, dj, r, param1, param2, rCutoff, detail: LongInt;
var df: Int64;
begin
param1:= cTemplateFilter div 3;
param2:= cTemplateFilter mod 3;
rCutoff:= min(max((26-cFeatureSize)*4,15),85);
detail:= (26-cFeatureSize)*16000+50000; // feature size is a slider from 1-25 at present. flip it for perlin
df:= detail * (6 - param2 * 2);
// Calculate estimate for max. hedgehog count
// Tunnels
if param1 = 0 then
begin
// Small tunnels
if param2 = 0 then
// 12..24
MaxHedgehogs:= 12 + 1 * (cFeatureSize - 1)
// Medium tunnels
else if param2 = 1 then
// 14..24
MaxHedgehogs:= 14 + max(0, 1 * (cFeatureSize - 3))
// Large tunnels
else if param2 = 2 then
// 16..24
MaxHedgehogs:= 16 + max(0, 1 * (cFeatureSize - 5));
if MaxHedgehogs > 24 then
MaxHedgehogs:= 24;
end
// Islands
else if (param1 = 1) and (cFeatureSize <= 25) then
// Small islands
if param2 = 0 then
// 64..32
MaxHedgehogs:= 32 + ((((25 - (cFeatureSize-1))*1000000) div 24) * 32) div 1000000
// Medium islands
else if param2 = 1 then
// 56..28
MaxHedgehogs:= 28 + ((((25 - (cFeatureSize-1))*1000000) div 24) * 28) div 1000000
// Large islands
else if param2 = 2 then
// 48..24
MaxHedgehogs:= 24 + ((((25 - (cFeatureSize-1))*1000000) div 24) * 24) div 1000000;
// We only want even numbers
if (MaxHedgehogs > 0) and ((MaxHedgehogs mod 2) = 1) then
MaxHedgehogs:= MaxHedgehogs - 1;
inoise_setup();
for y:= minY to pred(height) do
begin
di:= df * y div height;
for x:= 0 to pred(width) do
begin
dj:= df * x div width;
r:= ((abs(inoise(di, dj)) + y*4) mod 65536 - (height - y) * 8) div 256;
//r:= (abs(inoise(di, dj))) shr 8 and $ff;
if (x < margin) or (x > width - margin) then r:= r - abs(x - width div 2) + width div 2 - margin; // fade on edges
//r:= r - max(0, - abs(x - width div 2) + width * 2 div 100); // split vertically in the middle
//r:= r + (trunc(1000 - sqrt(sqr(x - (width div 2)) * 4 + sqr(y - height * 5 div 4) * 22))) div 600 * 20; // ellipse
//r:= r + 1 - ((abs(x - (width div 2)) + abs(y - height) * 2)) div 32; // manhattan length ellipse
{
if (y > height - bottomPlateHeight) and (x > bottomPlateMargin) and (x + bottomPlateMargin < width) then
begin
dy:= (y - height + bottomPlateHeight);
r:= r + dy;
if x < bottomPlateMargin + bottomPlateHeight then
r:= r + (x - bottomPlateMargin - bottomPlateHeight)
else
if x + bottomPlateMargin + bottomPlateHeight > width then
r:= r - (x - width + bottomPlateMargin + bottomPlateHeight);
end;
}
if r < rCutoff then
Land[y, x]:= 0
else if param1 = 0 then
Land[y, x]:= lfObjMask
else
Land[y, x]:= lfBasic
end;
end;
if param1 = 0 then
begin
for x:= 0 to width do
if Land[height - 1, x] = lfObjMask then FillLand(x, height - 1, 0, lfBasic);
// strip all lfObjMask pixels
for y:= minY to LAND_HEIGHT - 1 do
for x:= 0 to LAND_WIDTH - 1 do
if Land[y, x] = lfObjMask then
Land[y, x]:= 0;
end;
playWidth:= width;
playHeight:= height;
leftX:= 0;
rightX:= playWidth - 1;
topY:= 0;
hasBorder:= false;
end;
end.