(*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2005-2008 Andrey Korotaev <unC0Rr@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*)
unit uLand;
interface
uses SDLh, uLandTemplates, uFloat,
{$IFDEF GLES11}
gles11,
{$ELSE}
GL,
{$ENDIF}
uConsts;
{$include options.inc}
type TLandArray = packed array[0 .. LAND_HEIGHT - 1, 0 .. LAND_WIDTH - 1] of LongWord;
TCollisionArray = packed array[0 .. LAND_HEIGHT - 1, 0 .. LAND_WIDTH - 1] of Word;
TPreview = packed array[0..127, 0..31] of byte;
TDirtyTag = packed array[0 .. LAND_HEIGHT div 32 - 1, 0 .. LAND_WIDTH div 32 - 1] of byte;
var Land: TCollisionArray;
LandPixels: TLandArray;
LandDirty: TDirtyTag;
hasBorder: boolean; // I'm putting this here for now. I'd like it to be toggleable by user (so user can set a border on a non-cave map) - will turn off air attacks
hasGirders: boolean; // I think should be on template by template basis. some caverns might have open water and large spaces. Some islands do not need? It might be better to tweak the girder code based upon space above. dunno.
playHeight, playWidth, leftX, rightX, topY, MaxHedgehogs: Longword; // idea is that a template can specify height/width. Or, a map, a height/width by the dimensions of the image. If the map has pixels near top of image, it triggers border. Maybe not a good idea, but, for now? Could also be used to prevent placing a girder outside play area on maps with hasBorder = true
// in your coding style, it appears to be "isXXXX" for a verb, and "FooBar" for everything else - should be PlayHeight ?
procedure GenMap;
function GenPreview: TPreview;
procedure CheckLandDigest(s: shortstring);
implementation
uses uConsole, uStore, uMisc, uRandom, uTeams, uLandObjects, uSHA, uIO, uAmmos, uLandTexture;
type TPixAr = record
Count: Longword;
ar: array[0..Pred(cMaxEdgePoints)] of TPoint;
end;
procedure LogLandDigest;
var ctx: TSHA1Context;
dig: TSHA1Digest;
s: shortstring;
begin
SHA1Init(ctx);
SHA1UpdateLongwords(ctx, @Land, sizeof(Land) div 4);
dig:= SHA1Final(ctx);
s:='M{'+inttostr(dig[0])+':'
+inttostr(dig[1])+':'
+inttostr(dig[2])+':'
+inttostr(dig[3])+':'
+inttostr(dig[4])+'}';
CheckLandDigest(s);
SendIPCRaw(@s[0], Length(s) + 1)
end;
procedure CheckLandDigest(s: shortstring);
const digest: shortstring = '';
begin
{$IFDEF DEBUGFILE}
AddFileLog('CheckLandDigest: ' + s);
{$ENDIF}
if digest = '' then
digest:= s
else
TryDo(s = digest, 'Different maps generated, sorry', true)
end;
procedure DrawLine(X1, Y1, X2, Y2: LongInt; Color: Longword);
var
eX, eY, dX, dY: LongInt;
i, sX, sY, x, y, d: LongInt;
begin
eX:= 0;
eY:= 0;
dX:= X2 - X1;
dY:= Y2 - Y1;
if (dX > 0) then sX:= 1
else
if (dX < 0) then
begin
sX:= -1;
dX:= -dX
end else sX:= dX;
if (dY > 0) then sY:= 1
else
if (dY < 0) then
begin
sY:= -1;
dY:= -dY
end else sY:= dY;
if (dX > dY) then d:= dX
else d:= dY;
x:= X1;
y:= Y1;
for i:= 0 to d do
begin
inc(eX, dX);
inc(eY, dY);
if (eX > d) then
begin
dec(eX, d);
inc(x, sX);
end;
if (eY > d) then
begin
dec(eY, d);
inc(y, sY);
end;
if ((x and LAND_WIDTH_MASK) = 0) and ((y and LAND_HEIGHT_MASK) = 0) then
Land[y, x]:= Color;
end
end;
procedure DrawEdge(var pa: TPixAr; Color: Longword);
var i: LongInt;
begin
i:= 0;
with pa do
while i < LongInt(Count) - 1 do
if (ar[i + 1].X = NTPX) then inc(i, 2)
else begin
DrawLine(ar[i].x, ar[i].y, ar[i + 1].x, ar[i + 1].y, Color);
inc(i)
end
end;
procedure Vector(p1, p2, p3: TPoint; var Vx, Vy: hwFloat);
var d1, d2, d: hwFloat;
begin
Vx:= int2hwFloat(p1.X - p3.X);
Vy:= int2hwFloat(p1.Y - p3.Y);
d:= DistanceI(p2.X - p1.X, p2.Y - p1.Y);
d1:= DistanceI(p2.X - p3.X, p2.Y - p3.Y);
d2:= Distance(Vx, Vy);
if d1 < d then d:= d1;
if d2 < d then d:= d2;
d:= d * _1div3;
if d2.QWordValue = 0 then
begin
Vx:= _0;
Vy:= _0
end else
begin
d2:= _1 / d2;
Vx:= Vx * d2;
Vy:= Vy * d2;
Vx:= Vx * d;
Vy:= Vy * d
end
end;
procedure AddLoopPoints(var pa, opa: TPixAr; StartI, EndI: LongInt; Delta: hwFloat);
var i, pi, ni: LongInt;
NVx, NVy, PVx, PVy: hwFloat;
x1, x2, y1, y2: LongInt;
tsq, tcb, t, r1, r2, r3, cx1, cx2, cy1, cy2: hwFloat;
X, Y: LongInt;
begin
pi:= EndI;
i:= StartI;
ni:= Succ(StartI);
Vector(opa.ar[pi], opa.ar[i], opa.ar[ni], NVx, NVy);
repeat
inc(pi);
if pi > EndI then pi:= StartI;
inc(i);
if i > EndI then i:= StartI;
inc(ni);
if ni > EndI then ni:= StartI;
PVx:= NVx;
PVy:= NVy;
Vector(opa.ar[pi], opa.ar[i], opa.ar[ni], NVx, NVy);
x1:= opa.ar[pi].x;
y1:= opa.ar[pi].y;
x2:= opa.ar[i].x;
y2:= opa.ar[i].y;
cx1:= int2hwFloat(x1) - PVx;
cy1:= int2hwFloat(y1) - PVy;
cx2:= int2hwFloat(x2) + NVx;
cy2:= int2hwFloat(y2) + NVy;
t:= _0;
while t.Round = 0 do
begin
tsq:= t * t;
tcb:= tsq * t;
r1:= (_1 - t*3 + tsq*3 - tcb);
r2:= ( t*3 - tsq*6 + tcb*3);
r3:= ( tsq*3 - tcb*3);
X:= hwRound(r1 * x1 + r2 * cx1 + r3 * cx2 + tcb * x2);
Y:= hwRound(r1 * y1 + r2 * cy1 + r3 * cy2 + tcb * y2);
t:= t + Delta;
pa.ar[pa.Count].x:= X;
pa.ar[pa.Count].y:= Y;
inc(pa.Count);
TryDo(pa.Count <= cMaxEdgePoints, 'Edge points overflow', true)
end;
until i = StartI;
pa.ar[pa.Count].x:= opa.ar[StartI].X;
pa.ar[pa.Count].y:= opa.ar[StartI].Y;
inc(pa.Count)
end;
procedure BezierizeEdge(var pa: TPixAr; Delta: hwFloat);
var i, StartLoop: LongInt;
opa: TPixAr;
begin
opa:= pa;
pa.Count:= 0;
i:= 0;
StartLoop:= 0;
while i < LongInt(opa.Count) do
if (opa.ar[i + 1].X = NTPX) then
begin
AddLoopPoints(pa, opa, StartLoop, i, Delta);
inc(i, 2);
StartLoop:= i;
pa.ar[pa.Count].X:= NTPX;
inc(pa.Count);
end else inc(i)
end;
procedure FillLand(x, y: LongInt);
var Stack: record
Count: Longword;
points: array[0..8192] of record
xl, xr, y, dir: LongInt;
end
end;
procedure Push(_xl, _xr, _y, _dir: LongInt);
begin
TryDo(Stack.Count <= 8192, 'FillLand: stack overflow', true);
_y:= _y + _dir;
if (_y < 0) or (_y >= LAND_HEIGHT) then exit;
with Stack.points[Stack.Count] do
begin
xl:= _xl;
xr:= _xr;
y:= _y;
dir:= _dir
end;
inc(Stack.Count)
end;
procedure Pop(var _xl, _xr, _y, _dir: LongInt);
begin
dec(Stack.Count);
with Stack.points[Stack.Count] do
begin
_xl:= xl;
_xr:= xr;
_y:= y;
_dir:= dir
end
end;
var xl, xr, dir: LongInt;
begin
Stack.Count:= 0;
xl:= x - 1;
xr:= x;
Push(xl, xr, y, -1);
Push(xl, xr, y, 1);
while Stack.Count > 0 do
begin
Pop(xl, xr, y, dir);
while (xl > 0) and (Land[y, xl] <> 0) do dec(xl);
while (xr < LAND_WIDTH - 1) and (Land[y, xr] <> 0) do inc(xr);
while (xl < xr) do
begin
while (xl <= xr) and (Land[y, xl] = 0) do inc(xl);
x:= xl;
while (xl <= xr) and (Land[y, xl] <> 0) do
begin
Land[y, xl]:= 0;
inc(xl)
end;
if x < xl then
begin
Push(x, Pred(xl), y, dir);
Push(x, Pred(xl), y,-dir);
end;
end;
end;
end;
procedure ColorizeLand(Surface: PSDL_Surface);
var tmpsurf: PSDL_Surface;
r, rr: TSDL_Rect;
x, yd, yu: LongInt;
begin
tmpsurf:= LoadImage(Pathz[ptCurrTheme] + '/LandTex', ifCritical or ifIgnoreCaps);
r.y:= 0;
while r.y < LAND_HEIGHT do
begin
r.x:= 0;
while r.x < LAND_WIDTH do
begin
SDL_UpperBlit(tmpsurf, nil, Surface, @r);
inc(r.x, tmpsurf^.w)
end;
inc(r.y, tmpsurf^.h)
end;
SDL_FreeSurface(tmpsurf);
tmpsurf:= LoadImage(Pathz[ptCurrTheme] + '/Border', ifCritical or ifIgnoreCaps or ifTransparent);
for x:= 0 to LAND_WIDTH - 1 do
begin
yd:= LAND_HEIGHT - 1;
repeat
while (yd > 0) and (Land[yd, x] = 0) do dec(yd);
if (yd < 0) then yd:= 0;
while (yd < LAND_HEIGHT) and (Land[yd, x] <> 0) do inc(yd);
dec(yd);
yu:= yd;
while (yu > 0 ) and (Land[yu, x] <> 0) do dec(yu);
while (yu < yd ) and (Land[yu, x] = 0) do inc(yu);
if (yd < LAND_HEIGHT - 1) and ((yd - yu) >= 16) then
begin
rr.x:= x;
rr.y:= yd - 15;
r.x:= x mod tmpsurf^.w;
r.y:= 16;
r.w:= 1;
r.h:= 16;
SDL_UpperBlit(tmpsurf, @r, Surface, @rr);
end;
if (yu > 0) then
begin
rr.x:= x;
rr.y:= yu;
r.x:= x mod tmpsurf^.w;
r.y:= 0;
r.w:= 1;
r.h:= min(16, yd - yu + 1);
SDL_UpperBlit(tmpsurf, @r, Surface, @rr);
end;
yd:= yu - 1;
until yd < 0;
end;
end;
procedure SetPoints(var Template: TEdgeTemplate; var pa: TPixAr);
var i: LongInt;
begin
with Template do
begin
pa.Count:= BasePointsCount;
for i:= 0 to pred(pa.Count) do
begin
pa.ar[i].x:= BasePoints^[i].x + LongInt(GetRandom(BasePoints^[i].w));
if pa.ar[i].x <> NTPX then
pa.ar[i].x:= pa.ar[i].x + ((LAND_WIDTH - Template.TemplateWidth) div 2);
pa.ar[i].y:= BasePoints^[i].y + LongInt(GetRandom(BasePoints^[i].h)) + LAND_HEIGHT - Template.TemplateHeight
end;
if canMirror then
if getrandom(2) = 0 then
begin
for i:= 0 to pred(BasePointsCount) do
if pa.ar[i].x <> NTPX then
pa.ar[i].x:= LAND_WIDTH - 1 - pa.ar[i].x;
for i:= 0 to pred(FillPointsCount) do
FillPoints^[i].x:= LAND_WIDTH - 1 - FillPoints^[i].x;
end;
(* Experiment in making this option more useful
if ((not isNegative) and (cTemplateFilter = 4)) or
(canFlip and (getrandom(2) = 0)) then
begin
for i:= 0 to pred(BasePointsCount) do
begin
pa.ar[i].y:= LAND_HEIGHT - 1 - pa.ar[i].y + (LAND_HEIGHT - TemplateHeight) * 2;
if pa.ar[i].y > LAND_HEIGHT - 1 then
pa.ar[i].y:= LAND_HEIGHT - 1;
end;
for i:= 0 to pred(FillPointsCount) do
begin
FillPoints^[i].y:= LAND_HEIGHT - 1 - FillPoints^[i].y + (LAND_HEIGHT - TemplateHeight) * 2;
if FillPoints^[i].y > LAND_HEIGHT - 1 then
FillPoints^[i].y:= LAND_HEIGHT - 1;
end;
end;
end
*)
// template recycling. Pull these off the floor a bit
if (not isNegative) and (cTemplateFilter = 4) then
begin
for i:= 0 to pred(BasePointsCount) do
begin
dec(pa.ar[i].y, 100);
if pa.ar[i].y < 0 then
pa.ar[i].y:= 0;
end;
for i:= 0 to pred(FillPointsCount) do
begin
dec(FillPoints^[i].y, 100);
if FillPoints^[i].y < 0 then
FillPoints^[i].y:= 0;
end;
end;
if (canFlip and (getrandom(2) = 0)) then
begin
for i:= 0 to pred(BasePointsCount) do
pa.ar[i].y:= LAND_HEIGHT - 1 - pa.ar[i].y;
for i:= 0 to pred(FillPointsCount) do
FillPoints^[i].y:= LAND_HEIGHT - 1 - FillPoints^[i].y;
end;
end
end;
function CheckIntersect(V1, V2, V3, V4: TPoint): boolean;
var c1, c2, dm: LongInt;
begin
dm:= (V4.y - V3.y) * (V2.x - V1.x) - (V4.x - V3.x) * (V2.y - V1.y);
c1:= (V4.x - V3.x) * (V1.y - V3.y) - (V4.y - V3.y) * (V1.x - V3.x);
if dm = 0 then exit(false);
c2:= (V2.x - V3.x) * (V1.y - V3.y) - (V2.y - V3.y) * (V1.x - V3.x);
if dm > 0 then
begin
if (c1 < 0) or (c1 > dm) then exit(false);
if (c2 < 0) or (c2 > dm) then exit(false)
end else
begin
if (c1 > 0) or (c1 < dm) then exit(false);
if (c2 > 0) or (c2 < dm) then exit(false)
end;
//AddFileLog('1 (' + inttostr(V1.x) + ',' + inttostr(V1.y) + ')x(' + inttostr(V2.x) + ',' + inttostr(V2.y) + ')');
//AddFileLog('2 (' + inttostr(V3.x) + ',' + inttostr(V3.y) + ')x(' + inttostr(V4.x) + ',' + inttostr(V4.y) + ')');
CheckIntersect:= true
end;
function CheckSelfIntersect(var pa: TPixAr; ind: Longword): boolean;
var i: Longword;
begin
if (ind <= 0) or (ind >= Pred(pa.Count)) then exit(false);
for i:= 1 to pa.Count - 3 do
if (i <= ind - 1) or (i >= ind + 2) then
begin
if (i <> ind - 1) and
CheckIntersect(pa.ar[ind], pa.ar[ind - 1], pa.ar[i], pa.ar[i - 1]) then exit(true);
if (i <> ind + 2) and
CheckIntersect(pa.ar[ind], pa.ar[ind + 1], pa.ar[i], pa.ar[i - 1]) then exit(true);
end;
CheckSelfIntersect:= false
end;
procedure RandomizePoints(var pa: TPixAr);
const cEdge = 55;
cMinDist = 8;
var radz: array[0..Pred(cMaxEdgePoints)] of LongInt;
i, k, dist, px, py: LongInt;
begin
radz[0]:= 0;
for i:= 0 to Pred(pa.Count) do
with pa.ar[i] do
if x <> NTPX then
begin
radz[i]:= Min(Max(x - cEdge, 0), Max(LAND_WIDTH - cEdge - x, 0));
radz[i]:= Min(radz[i], Min(Max(y - cEdge, 0), Max(LAND_HEIGHT - cEdge - y, 0)));
if radz[i] > 0 then
for k:= 0 to Pred(i) do
begin
dist:= Max(abs(x - pa.ar[k].x), abs(y - pa.ar[k].y));
radz[k]:= Max(0, Min((dist - cMinDist) div 2, radz[k]));
radz[i]:= Max(0, Min(dist - radz[k] - cMinDist, radz[i]))
end
end;
for i:= 0 to Pred(pa.Count) do
with pa.ar[i] do
if ((x and LAND_WIDTH_MASK) = 0) and ((y and LAND_HEIGHT_MASK) = 0) then
begin
px:= x;
py:= y;
x:= x + LongInt(GetRandom(7) - 3) * (radz[i] * 5 div 7) div 3;
y:= y + LongInt(GetRandom(7) - 3) * (radz[i] * 5 div 7) div 3;
if CheckSelfIntersect(pa, i) then
begin
x:= px;
y:= py
end;
end
end;
procedure GenBlank(var Template: TEdgeTemplate);
var pa: TPixAr;
i: Longword;
y, x: Longword;
begin
for y:= 0 to LAND_HEIGHT - 1 do
for x:= 0 to LAND_WIDTH - 1 do
Land[y, x]:= COLOR_LAND;
SetPoints(Template, pa);
for i:= 1 to Template.BezierizeCount do
begin
BezierizeEdge(pa, _0_5);
RandomizePoints(pa);
RandomizePoints(pa)
end;
for i:= 1 to Template.RandPassesCount do RandomizePoints(pa);
BezierizeEdge(pa, _0_1);
DrawEdge(pa, 0);
with Template do
for i:= 0 to pred(FillPointsCount) do
with FillPoints^[i] do
FillLand(x, y);
DrawEdge(pa, COLOR_LAND);
MaxHedgehogs:= Template.MaxHedgehogs;
hasGirders:= Template.hasGirders;
playHeight:= Template.TemplateHeight;
playWidth:= Template.TemplateWidth;
leftX:= ((LAND_WIDTH - playWidth) div 2);
rightX:= (playWidth + ((LAND_WIDTH - playWidth) div 2)) - 1;
topY:= LAND_HEIGHT - playHeight;
// force to only cavern even if a cavern map is invertable if cTemplateFilter = 4 ?
if (cTemplateFilter = 4) or
(Template.canInvert and (getrandom(2) = 0)) or
(not Template.canInvert and Template.isNegative) then
begin
hasBorder:= true;
for y:= 0 to LAND_HEIGHT - 1 do
for x:= 0 to LAND_WIDTH - 1 do
if (y < topY) or (x < leftX) or (x > rightX) then
Land[y, x]:= 0
else
begin
if Land[y, x] = 0 then
Land[y, x]:= COLOR_LAND
else if Land[y, x] = COLOR_LAND then
Land[y, x]:= 0;
end;
end;
end;
function SelectTemplate: LongInt;
begin
case cTemplateFilter of
0: begin
SelectTemplate:= getrandom(Succ(High(EdgeTemplates)));
end;
1: begin
SelectTemplate:= SmallTemplates[getrandom(Succ(High(SmallTemplates)))];
end;
2: begin
SelectTemplate:= MediumTemplates[getrandom(Succ(High(MediumTemplates)))];
end;
3: begin
SelectTemplate:= LargeTemplates[getrandom(Succ(High(LargeTemplates)))];
end;
4: begin
SelectTemplate:= CavernTemplates[getrandom(Succ(High(CavernTemplates)))];
end;
5: begin
SelectTemplate:= WackyTemplates[getrandom(Succ(High(WackyTemplates)))];
end;
end;
WriteLnToConsole('Selected template #'+inttostr(SelectTemplate)+' using filter #'+inttostr(cTemplateFilter));
end;
procedure LandSurface2LandPixels(Surface: PSDL_Surface);
var x, y: LongInt;
p: PLongwordArray;
begin
TryDo(Surface <> nil, 'Assert (LandSurface <> nil) failed', true);
if SDL_MustLock(Surface) then
SDLTry(SDL_LockSurface(Surface) >= 0, true);
p:= Surface^.pixels;
for y:= 0 to LAND_HEIGHT - 1 do
begin
for x:= 0 to LAND_WIDTH - 1 do
if Land[y, x] <> 0 then LandPixels[y, x]:= p^[x] or $FF000000;
p:= @(p^[Surface^.pitch div 4]);
end;
if SDL_MustLock(Surface) then
SDL_UnlockSurface(Surface);
end;
procedure GenLandSurface;
var tmpsurf: PSDL_Surface;
begin
WriteLnToConsole('Generating land...');
GenBlank(EdgeTemplates[SelectTemplate]);
AddProgress;
tmpsurf:= SDL_CreateRGBSurface(SDL_SWSURFACE, LAND_WIDTH, LAND_HEIGHT, 32, RMask, GMask, BMask, 0);
TryDo(tmpsurf <> nil, 'Error creating pre-land surface', true);
ColorizeLand(tmpsurf);
AddOnLandObjects(tmpsurf);
LandSurface2LandPixels(tmpsurf);
SDL_FreeSurface(tmpsurf);
AddProgress;
end;
procedure MakeFortsMap;
var tmpsurf: PSDL_Surface;
begin
// For now, defining a fort is playable area as 3072x1200 - there are no tall forts. The extra height is to avoid triggering border with current code, also if user turns on a border, it will give a bit more maneuvering room.
playHeight:= 1200;
playWidth:= 2560;
leftX:= (LAND_WIDTH - playWidth) div 2;
rightX:= ((playWidth + (LAND_WIDTH - playWidth) div 2) - 1);
topY:= LAND_HEIGHT - playHeight;
WriteLnToConsole('Generating forts land...');
tmpsurf:= LoadImage(Pathz[ptForts] + '/' + ClansArray[0]^.Teams[0]^.FortName + 'L', ifAlpha or ifCritical or ifTransparent or ifIgnoreCaps);
BlitImageAndGenerateCollisionInfo(leftX+150, LAND_HEIGHT - tmpsurf^.h, tmpsurf^.w, tmpsurf);
SDL_FreeSurface(tmpsurf);
tmpsurf:= LoadImage(Pathz[ptForts] + '/' + ClansArray[1]^.Teams[0]^.FortName + 'R', ifAlpha or ifCritical or ifTransparent or ifIgnoreCaps);
BlitImageAndGenerateCollisionInfo(rightX - 150 - tmpsurf^.w, LAND_HEIGHT - tmpsurf^.h, tmpsurf^.w, tmpsurf);
SDL_FreeSurface(tmpsurf);
end;
// Hi unC0Rr.
// This is a function that Tiy assures me would not be good for gameplay.
// It allows the setting of arbitrary portions of landscape as indestructible, or regular, or even blank.
// He said I could add it here only when I swore it would not impact gameplay. Which, as far as I can tell, is true.
// I would just like to play with it with my friends if you do not mind.
// Can allow for amusing maps.
procedure LoadMask;
var tmpsurf: PSDL_Surface;
p: PLongwordArray;
x, y, cpX, cpY: Longword;
begin
tmpsurf:= LoadImage(Pathz[ptMapCurrent] + '/mask', ifAlpha or ifTransparent or ifIgnoreCaps);
if (tmpsurf <> nil) and (tmpsurf^.w <= LAND_WIDTH) and (tmpsurf^.h <= LAND_HEIGHT) and (tmpsurf^.format^.BytesPerPixel = 4) then
begin
cpX:= (LAND_WIDTH - tmpsurf^.w) div 2;
cpY:= LAND_HEIGHT - tmpsurf^.h;
if SDL_MustLock(tmpsurf) then
SDLTry(SDL_LockSurface(tmpsurf) >= 0, true);
p:= tmpsurf^.pixels;
for y:= 0 to Pred(tmpsurf^.h) do
begin
for x:= 0 to Pred(tmpsurf^.w) do
begin
if (($FF000000 and p^[x]) = 0) then // Tiy was having trouble generating transparent black
Land[cpY + y, cpX + x]:= 0
else if p^[x] = $FF0000FF then
Land[cpY + y, cpX + x]:= COLOR_INDESTRUCTIBLE
else if p^[x] = $FFFFFFFF then
Land[cpY + y, cpX + x]:= COLOR_LAND;
end;
p:= @(p^[tmpsurf^.pitch div 4]);
end;
if SDL_MustLock(tmpsurf) then
SDL_UnlockSurface(tmpsurf);
SDL_FreeSurface(tmpsurf);
end;
end;
procedure LoadMap;
var tmpsurf: PSDL_Surface;
s: string;
f: textfile;
begin
WriteLnToConsole('Loading land from file...');
AddProgress;
tmpsurf:= LoadImage(Pathz[ptMapCurrent] + '/map', ifAlpha or ifCritical or ifTransparent or ifIgnoreCaps);
TryDo((tmpsurf^.w <= LAND_WIDTH) and (tmpsurf^.h <= LAND_HEIGHT), 'Map dimensions too big!', true);
// unC0Rr - should this be passed from the GUI? I am not sure which layer does what
s:= Pathz[ptMapCurrent] + '/map.cfg';
WriteLnToConsole('Fetching map HH limit');
Assign(f, s);
Reset(f);
Readln(f);
if not eof(f) then Readln(f, MaxHedgehogs);
if(MaxHedgehogs = 0) then MaxHedgehogs:= 18;
playHeight:= tmpsurf^.h;
playWidth:= tmpsurf^.w;
leftX:= (LAND_WIDTH - playWidth) div 2;
rightX:= (playWidth + ((LAND_WIDTH - playWidth) div 2)) - 1;
topY:= LAND_HEIGHT - playHeight;
TryDo(tmpsurf^.format^.BytesPerPixel = 4, 'Map should be 32bit', true);
BlitImageAndGenerateCollisionInfo(
(LAND_WIDTH - tmpsurf^.w) div 2,
LAND_HEIGHT - tmpsurf^.h,
tmpsurf^.w,
tmpsurf);
SDL_FreeSurface(tmpsurf);
LoadMask;
end;
procedure GenMap;
var x, y, w, c: Longword;
begin
hasBorder:= false;
hasGirders:= true;
LoadThemeConfig;
if (GameFlags and gfForts) = 0 then
if Pathz[ptMapCurrent] <> '' then LoadMap
else GenLandSurface
else MakeFortsMap;
AddProgress;
{$IFDEF DEBUGFILE}LogLandDigest;{$ENDIF}
// check for land near top
c:= 0;
if (GameFlags and gfBorder) <> 0 then
hasBorder:= true
else
for y:= topY to topY + 5 do
for x:= leftX to rightX do
if Land[y, x] <> 0 then
begin
inc(c);
if c > 200 then // avoid accidental triggering
begin
hasBorder:= true;
break;
end;
end;
if hasBorder then
begin
for y:= 0 to LAND_HEIGHT - 1 do
for x:= 0 to LAND_WIDTH - 1 do
if (y < topY) or (x < leftX) or (x > rightX) then
Land[y, x]:= COLOR_INDESTRUCTIBLE;
// experiment hardcoding cave
// also try basing cave dimensions on map/template dimensions, if they exist
for w:= 0 to 5 do // width of 3 allowed hogs to be knocked through with grenade
begin
for y:= topY to LAND_HEIGHT - 1 do
begin
Land[y, leftX + w]:= COLOR_INDESTRUCTIBLE;
Land[y, rightX - w]:= COLOR_INDESTRUCTIBLE;
if (y + w) mod 32 < 16 then
c:= $FF000000
else
c:= $FF00FFFF;
LandPixels[y, leftX + w]:= c;
LandPixels[y, rightX - w]:= c;
end;
for x:= leftX to rightX do
begin
Land[topY + w, x]:= COLOR_INDESTRUCTIBLE;
if (x + w) mod 32 < 16 then
c:= $FF000000
else
c:= $FF00FFFF;
LandPixels[topY + w, x]:= c;
end;
end;
end;
if ((GameFlags and gfForts) = 0) and (Pathz[ptMapCurrent] = '') then AddObjects;
UpdateLandTexture(0, LAND_WIDTH, 0, LAND_HEIGHT);
end;
function GenPreview: TPreview;
var x, y, xx, yy, t, bit: LongInt;
Preview: TPreview;
begin
WriteLnToConsole('Generating preview...');
GenBlank(EdgeTemplates[SelectTemplate]);
for y:= 0 to 127 do
for x:= 0 to 31 do
begin
Preview[y, x]:= 0;
for bit:= 0 to 7 do
begin
t:= 0;
for yy:= y * (LAND_HEIGHT div 128) to y * (LAND_HEIGHT div 128) + 7 do
for xx:= x * (LAND_WIDTH div 32) + bit * 8 to x * (LAND_WIDTH div 32) + bit * 8 + 7 do
if Land[yy, xx] <> 0 then inc(t);
if t > 8 then Preview[y, x]:= Preview[y, x] or ($80 shr bit)
end
end;
GenPreview:= Preview
end;
initialization
end.