author | unc0rr |
Fri, 09 Jan 2009 11:28:18 +0000 | |
changeset 1623 | d590e6da04da |
parent 1066 | 1f1b3686a2b0 |
child 1738 | 00e8dadce69a |
permissions | -rw-r--r-- |
393 | 1 |
(* |
1066 | 2 |
* Hedgewars, a free turn based strategy game |
883 | 3 |
* Copyright (c) 2005-2008 Andrey Korotaev <unC0Rr@gmail.com> |
393 | 4 |
* |
5 |
* This program is free software; you can redistribute it and/or modify |
|
6 |
* it under the terms of the GNU General Public License as published by |
|
7 |
* the Free Software Foundation; version 2 of the License |
|
8 |
* |
|
9 |
* This program is distributed in the hope that it will be useful, |
|
10 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
11 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
12 |
* GNU General Public License for more details. |
|
13 |
* |
|
14 |
* You should have received a copy of the GNU General Public License |
|
15 |
* along with this program; if not, write to the Free Software |
|
16 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
|
17 |
*) |
|
18 |
||
184 | 19 |
unit uLandGraphics; |
20 |
interface |
|
409 | 21 |
uses uFloat, uConsts; |
345 | 22 |
{$INCLUDE options.inc} |
184 | 23 |
|
24 |
type PRangeArray = ^TRangeArray; |
|
25 |
TRangeArray = array[0..31] of record |
|
371 | 26 |
Left, Right: LongInt; |
184 | 27 |
end; |
28 |
||
371 | 29 |
procedure DrawExplosion(X, Y, Radius: LongInt); |
30 |
procedure DrawHLinesExplosions(ar: PRangeArray; Radius: LongInt; y, dY: LongInt; Count: Byte); |
|
31 |
procedure DrawTunnel(X, Y, dX, dY: hwFloat; ticks, HalfWidth: LongInt); |
|
32 |
procedure FillRoundInLand(X, Y, Radius: LongInt; Value: Longword); |
|
511 | 33 |
procedure ChangeRoundInLand(X, Y, Radius: LongInt; doSet: boolean); |
184 | 34 |
|
520 | 35 |
function TryPlaceOnLand(cpX, cpY: LongInt; Obj: TSprite; Frame: LongInt; doPlace: boolean): boolean; |
409 | 36 |
|
184 | 37 |
implementation |
409 | 38 |
uses SDLh, uMisc, uLand; |
184 | 39 |
|
371 | 40 |
procedure FillCircleLines(x, y, dx, dy: LongInt; Value: Longword); |
41 |
var i: LongInt; |
|
184 | 42 |
begin |
43 |
if ((y + dy) and $FFFFFC00) = 0 then |
|
44 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do Land[y + dy, i]:= Value; |
|
45 |
if ((y - dy) and $FFFFFC00) = 0 then |
|
46 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do Land[y - dy, i]:= Value; |
|
47 |
if ((y + dx) and $FFFFFC00) = 0 then |
|
48 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do Land[y + dx, i]:= Value; |
|
49 |
if ((y - dx) and $FFFFFC00) = 0 then |
|
50 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do Land[y - dx, i]:= Value; |
|
51 |
end; |
|
52 |
||
511 | 53 |
procedure ChangeCircleLines(x, y, dx, dy: LongInt; doSet: boolean); |
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54 |
var i: LongInt; |
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55 |
begin |
511 | 56 |
if not doSet then |
57 |
begin |
|
58 |
if ((y + dy) and $FFFFFC00) = 0 then |
|
59 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do |
|
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60 |
if (Land[y + dy, i] > 0) then dec(Land[y + dy, i]); // check > 0 because explosion can erase collision data |
511 | 61 |
if ((y - dy) and $FFFFFC00) = 0 then |
62 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do |
|
63 |
if (Land[y - dy, i] > 0) then dec(Land[y - dy, i]); |
|
64 |
if ((y + dx) and $FFFFFC00) = 0 then |
|
65 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do |
|
66 |
if (Land[y + dx, i] > 0) then dec(Land[y + dx, i]); |
|
67 |
if ((y - dx) and $FFFFFC00) = 0 then |
|
68 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do |
|
69 |
if (Land[y - dx, i] > 0) then dec(Land[y - dx, i]); |
|
70 |
end else |
|
71 |
begin |
|
72 |
if ((y + dy) and $FFFFFC00) = 0 then |
|
73 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do inc(Land[y + dy, i]); |
|
74 |
if ((y - dy) and $FFFFFC00) = 0 then |
|
75 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do inc(Land[y - dy, i]); |
|
76 |
if ((y + dx) and $FFFFFC00) = 0 then |
|
77 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do inc(Land[y + dx, i]); |
|
78 |
if ((y - dx) and $FFFFFC00) = 0 then |
|
79 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do inc(Land[y - dx, i]); |
|
80 |
end |
|
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81 |
end; |
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82 |
|
371 | 83 |
procedure FillRoundInLand(X, Y, Radius: LongInt; Value: Longword); |
84 |
var dx, dy, d: LongInt; |
|
184 | 85 |
begin |
86 |
dx:= 0; |
|
87 |
dy:= Radius; |
|
88 |
d:= 3 - 2 * Radius; |
|
89 |
while (dx < dy) do |
|
90 |
begin |
|
91 |
FillCircleLines(x, y, dx, dy, Value); |
|
92 |
if (d < 0) |
|
93 |
then d:= d + 4 * dx + 6 |
|
94 |
else begin |
|
95 |
d:= d + 4 * (dx - dy) + 10; |
|
96 |
dec(dy) |
|
97 |
end; |
|
98 |
inc(dx) |
|
99 |
end; |
|
100 |
if (dx = dy) then FillCircleLines(x, y, dx, dy, Value); |
|
101 |
end; |
|
102 |
||
511 | 103 |
procedure ChangeRoundInLand(X, Y, Radius: LongInt; doSet: boolean); |
504
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104 |
var dx, dy, d: LongInt; |
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105 |
begin |
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106 |
dx:= 0; |
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107 |
dy:= Radius; |
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|
108 |
d:= 3 - 2 * Radius; |
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109 |
while (dx < dy) do |
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110 |
begin |
511 | 111 |
ChangeCircleLines(x, y, dx, dy, doSet); |
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112 |
if (d < 0) |
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113 |
then d:= d + 4 * dx + 6 |
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|
114 |
else begin |
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115 |
d:= d + 4 * (dx - dy) + 10; |
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|
116 |
dec(dy) |
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|
117 |
end; |
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|
118 |
inc(dx) |
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|
119 |
end; |
511 | 120 |
if (dx = dy) then ChangeCircleLines(x, y, dx, dy, doSet) |
504
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|
121 |
end; |
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122 |
|
371 | 123 |
procedure FillLandCircleLines0(x, y, dx, dy: LongInt); |
124 |
var i: LongInt; |
|
184 | 125 |
begin |
126 |
if ((y + dy) and $FFFFFC00) = 0 then |
|
768 | 127 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do LandPixels[y + dy, i]:= 0; |
184 | 128 |
if ((y - dy) and $FFFFFC00) = 0 then |
768 | 129 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do LandPixels[y - dy, i]:= 0; |
184 | 130 |
if ((y + dx) and $FFFFFC00) = 0 then |
768 | 131 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do LandPixels[y + dx, i]:= 0; |
184 | 132 |
if ((y - dx) and $FFFFFC00) = 0 then |
768 | 133 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do LandPixels[y - dx, i]:= 0; |
184 | 134 |
end; |
135 |
||
371 | 136 |
procedure FillLandCircleLinesEBC(x, y, dx, dy: LongInt); |
137 |
var i: LongInt; |
|
184 | 138 |
begin |
139 |
if ((y + dy) and $FFFFFC00) = 0 then |
|
140 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do |
|
768 | 141 |
if Land[y + dy, i] = COLOR_LAND then LandPixels[y + dy, i]:= cExplosionBorderColor; |
184 | 142 |
if ((y - dy) and $FFFFFC00) = 0 then |
143 |
for i:= max(x - dx, 0) to min(x + dx, 2047) do |
|
768 | 144 |
if Land[y - dy, i] = COLOR_LAND then LandPixels[y - dy, i]:= cExplosionBorderColor; |
184 | 145 |
if ((y + dx) and $FFFFFC00) = 0 then |
146 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do |
|
768 | 147 |
if Land[y + dx, i] = COLOR_LAND then LandPixels[y + dx, i]:= cExplosionBorderColor; |
184 | 148 |
if ((y - dx) and $FFFFFC00) = 0 then |
149 |
for i:= max(x - dy, 0) to min(x + dy, 2047) do |
|
768 | 150 |
if Land[y - dx, i] = COLOR_LAND then LandPixels[y - dx, i]:= cExplosionBorderColor; |
184 | 151 |
end; |
152 |
||
371 | 153 |
procedure DrawExplosion(X, Y, Radius: LongInt); |
154 |
var dx, dy, d: LongInt; |
|
184 | 155 |
begin |
156 |
FillRoundInLand(X, Y, Radius, 0); |
|
157 |
||
158 |
dx:= 0; |
|
159 |
dy:= Radius; |
|
160 |
d:= 3 - 2 * Radius; |
|
161 |
while (dx < dy) do |
|
162 |
begin |
|
163 |
FillLandCircleLines0(x, y, dx, dy); |
|
164 |
if (d < 0) |
|
165 |
then d:= d + 4 * dx + 6 |
|
166 |
else begin |
|
167 |
d:= d + 4 * (dx - dy) + 10; |
|
168 |
dec(dy) |
|
169 |
end; |
|
170 |
inc(dx) |
|
171 |
end; |
|
172 |
if (dx = dy) then FillLandCircleLines0(x, y, dx, dy); |
|
173 |
inc(Radius, 4); |
|
174 |
dx:= 0; |
|
175 |
dy:= Radius; |
|
176 |
d:= 3 - 2 * Radius; |
|
177 |
while (dx < dy) do |
|
178 |
begin |
|
179 |
FillLandCircleLinesEBC(x, y, dx, dy); |
|
180 |
if (d < 0) |
|
181 |
then d:= d + 4 * dx + 6 |
|
182 |
else begin |
|
183 |
d:= d + 4 * (dx - dy) + 10; |
|
184 |
dec(dy) |
|
185 |
end; |
|
186 |
inc(dx) |
|
187 |
end; |
|
351 | 188 |
if (dx = dy) then FillLandCircleLinesEBC(x, y, dx, dy); |
189 |
||
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190 |
d:= max(Y - Radius - 1, 0); |
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|
191 |
dy:= min(Y + Radius + 1, 1023) - d; |
768 | 192 |
UpdateLandTexture(d, dy) |
184 | 193 |
end; |
194 |
||
371 | 195 |
procedure DrawHLinesExplosions(ar: PRangeArray; Radius: LongInt; y, dY: LongInt; Count: Byte); |
184 | 196 |
var tx, ty, i: LongInt; |
197 |
begin |
|
198 |
for i:= 0 to Pred(Count) do |
|
199 |
begin |
|
188 | 200 |
for ty:= max(y - Radius, 0) to min(y + Radius, 1023) do |
351 | 201 |
for tx:= max(0, ar^[i].Left - Radius) to min(2047, ar^[i].Right + Radius) do |
768 | 202 |
LandPixels[ty, tx]:= 0; |
184 | 203 |
inc(y, dY) |
204 |
end; |
|
205 |
||
206 |
inc(Radius, 4); |
|
351 | 207 |
dec(y, Count * dY); |
184 | 208 |
|
209 |
for i:= 0 to Pred(Count) do |
|
210 |
begin |
|
188 | 211 |
for ty:= max(y - Radius, 0) to min(y + Radius, 1023) do |
351 | 212 |
for tx:= max(0, ar^[i].Left - Radius) to min(2047, ar^[i].Right + Radius) do |
188 | 213 |
if Land[ty, tx] = $FFFFFF then |
768 | 214 |
LandPixels[ty, tx]:= cExplosionBorderColor; |
184 | 215 |
inc(y, dY) |
216 |
end; |
|
217 |
||
818 | 218 |
|
219 |
UpdateLandTexture(0, 1023) |
|
184 | 220 |
end; |
221 |
||
222 |
// |
|
223 |
// - (dX, dY) - direction, vector of length = 0.5 |
|
224 |
// |
|
371 | 225 |
procedure DrawTunnel(X, Y, dX, dY: hwFloat; ticks, HalfWidth: LongInt); |
358 | 226 |
var nx, ny, dX8, dY8: hwFloat; |
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227 |
i, t, tx, ty, stY: Longint; |
184 | 228 |
begin // (-dY, dX) is (dX, dY) rotated by PI/2 |
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229 |
stY:= hwRound(Y); |
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|
230 |
|
184 | 231 |
nx:= X + dY * (HalfWidth + 8); |
232 |
ny:= Y - dX * (HalfWidth + 8); |
|
233 |
||
358 | 234 |
dX8:= dX * 8; |
235 |
dY8:= dY * 8; |
|
184 | 236 |
for i:= 0 to 7 do |
237 |
begin |
|
358 | 238 |
X:= nx - dX8; |
239 |
Y:= ny - dY8; |
|
184 | 240 |
for t:= -8 to ticks + 8 do |
241 |
{$include tunsetborder.inc} |
|
242 |
nx:= nx - dY; |
|
243 |
ny:= ny + dX; |
|
244 |
end; |
|
245 |
||
246 |
for i:= -HalfWidth to HalfWidth do |
|
247 |
begin |
|
358 | 248 |
X:= nx - dX8; |
249 |
Y:= ny - dY8; |
|
184 | 250 |
for t:= 0 to 7 do |
251 |
{$include tunsetborder.inc} |
|
252 |
X:= nx; |
|
253 |
Y:= ny; |
|
254 |
for t:= 0 to ticks do |
|
255 |
begin |
|
256 |
X:= X + dX; |
|
257 |
Y:= Y + dY; |
|
351 | 258 |
tx:= hwRound(X); |
259 |
ty:= hwRound(Y); |
|
184 | 260 |
if ((ty and $FFFFFC00) = 0) and ((tx and $FFFFF800) = 0) then |
511 | 261 |
if Land[ty, tx] = COLOR_LAND then |
184 | 262 |
begin |
263 |
Land[ty, tx]:= 0; |
|
768 | 264 |
LandPixels[ty, tx]:= 0; |
184 | 265 |
end |
266 |
end; |
|
267 |
for t:= 0 to 7 do |
|
268 |
{$include tunsetborder.inc} |
|
269 |
nx:= nx - dY; |
|
270 |
ny:= ny + dX; |
|
271 |
end; |
|
272 |
||
273 |
for i:= 0 to 7 do |
|
274 |
begin |
|
358 | 275 |
X:= nx - dX8; |
276 |
Y:= ny - dY8; |
|
184 | 277 |
for t:= -8 to ticks + 8 do |
278 |
{$include tunsetborder.inc} |
|
279 |
nx:= nx - dY; |
|
280 |
ny:= ny + dX; |
|
281 |
end; |
|
282 |
||
828 | 283 |
t:= max(stY - HalfWidth * 2 - 4 - abs(hwRound(dY * ticks)), 0); |
284 |
ty:= min(stY + HalfWidth * 2 + 4 + abs(hwRound(dY * ticks)), 1023) - t; |
|
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|
285 |
UpdateLandTexture(t, ty) |
184 | 286 |
end; |
287 |
||
520 | 288 |
function TryPlaceOnLand(cpX, cpY: LongInt; Obj: TSprite; Frame: LongInt; doPlace: boolean): boolean; |
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|
289 |
var X, Y, bpp, h, w: LongInt; |
409 | 290 |
p: PByteArray; |
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diff
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|
291 |
Image: PSDL_Surface; |
409 | 292 |
begin |
769
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diff
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|
293 |
TryDo(SpritesData[Obj].Surface <> nil, 'Assert SpritesData[Obj].Surface failed', true); |
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|
294 |
Image:= SpritesData[Obj].Surface; |
409 | 295 |
w:= SpritesData[Obj].Width; |
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diff
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|
296 |
h:= SpritesData[Obj].Height; |
409 | 297 |
|
298 |
if SDL_MustLock(Image) then |
|
299 |
SDLTry(SDL_LockSurface(Image) >= 0, true); |
|
300 |
||
301 |
bpp:= Image^.format^.BytesPerPixel; |
|
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diff
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|
302 |
TryDo(bpp = 4, 'It should be 32 bpp sprite', true); |
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diff
changeset
|
303 |
// Check that sprite fits free space |
409 | 304 |
p:= @(PByteArray(Image^.pixels)^[Image^.pitch * Frame * h]); |
305 |
case bpp of |
|
306 |
4: for y:= 0 to Pred(h) do |
|
307 |
begin |
|
308 |
for x:= 0 to Pred(w) do |
|
309 |
if PLongword(@(p^[x * 4]))^ <> 0 then |
|
310 |
if (((cpY + y) and $FFFFFC00) <> 0) or |
|
311 |
(((cpX + x) and $FFFFF800) <> 0) or |
|
312 |
(Land[cpY + y, cpX + x] <> 0) then |
|
313 |
begin |
|
314 |
if SDL_MustLock(Image) then |
|
315 |
SDL_UnlockSurface(Image); |
|
316 |
exit(false) |
|
317 |
end; |
|
318 |
p:= @(p^[Image^.pitch]); |
|
319 |
end; |
|
320 |
end; |
|
321 |
||
520 | 322 |
TryPlaceOnLand:= true; |
769
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diff
changeset
|
323 |
if not doPlace then |
788efc1d649f
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diff
changeset
|
324 |
begin |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
325 |
if SDL_MustLock(Image) then |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
326 |
SDL_UnlockSurface(Image); |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
327 |
exit |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
328 |
end; |
520 | 329 |
|
409 | 330 |
// Checked, now place |
331 |
p:= @(PByteArray(Image^.pixels)^[Image^.pitch * Frame * h]); |
|
332 |
case bpp of |
|
333 |
4: for y:= 0 to Pred(h) do |
|
334 |
begin |
|
335 |
for x:= 0 to Pred(w) do |
|
769
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
336 |
if PLongword(@(p^[x * 4]))^ <> 0 then |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
337 |
begin |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
338 |
Land[cpY + y, cpX + x]:= COLOR_LAND; |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
339 |
LandPixels[cpY + y, cpX + x]:= PLongword(@(p^[x * 4]))^ |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
340 |
end; |
409 | 341 |
p:= @(p^[Image^.pitch]); |
342 |
end; |
|
343 |
end; |
|
344 |
if SDL_MustLock(Image) then |
|
345 |
SDL_UnlockSurface(Image); |
|
346 |
||
769
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
347 |
y:= max(cpY, 0); |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
348 |
h:= min(cpY + Image^.h, 1023) - y; |
788efc1d649f
- Save 8 MB of memory by freeing LandSurface and not using it anymore after game initialization
unc0rr
parents:
768
diff
changeset
|
349 |
UpdateLandTexture(y, h) |
409 | 350 |
end; |
351 |
||
184 | 352 |
|
353 |
end. |