Fork of Poseidon providing Bukkit #1060 to older Beta versions (b1.0-b1.7.3)
keii.dev
1package net.minecraft.server;
2
3import org.bukkit.Bukkit;
4import org.bukkit.event.world.PortalCreateEvent;
5
6import java.util.Random;
7
8// CraftBukkit start
9// CraftBukkit end
10
11public class PortalTravelAgent {
12
13 private Random a = new Random();
14
15 public PortalTravelAgent() {
16 }
17
18 public void a(World world, Entity entity) {
19 if (!this.b(world, entity)) {
20 this.c(world, entity);
21 this.b(world, entity);
22 }
23 }
24
25 public boolean b(World world, Entity entity) {
26 short short1 = 128;
27 double d0 = -1.0D;
28 int i = 0;
29 int j = 0;
30 int k = 0;
31 int l = MathHelper.floor(entity.locX);
32 int i1 = MathHelper.floor(entity.locZ);
33
34 double d1;
35
36 for (int j1 = l - short1; j1 <= l + short1; ++j1) {
37 double d2 = (double) j1 + 0.5D - entity.locX;
38
39 for (int k1 = i1 - short1; k1 <= i1 + short1; ++k1) {
40 double d3 = (double) k1 + 0.5D - entity.locZ;
41
42 for (int l1 = 127; l1 >= 0; --l1) {
43 if (world.getTypeId(j1, l1, k1) == Block.PORTAL.id) {
44 while (world.getTypeId(j1, l1 - 1, k1) == Block.PORTAL.id) {
45 --l1;
46 }
47
48 d1 = (double) l1 + 0.5D - entity.locY;
49 double d4 = d2 * d2 + d1 * d1 + d3 * d3;
50
51 if (d0 < 0.0D || d4 < d0) {
52 d0 = d4;
53 i = j1;
54 j = l1;
55 k = k1;
56 }
57 }
58 }
59 }
60 }
61
62 if (d0 >= 0.0D) {
63 double d5 = (double) i + 0.5D;
64 double d6 = (double) j + 0.5D;
65
66 d1 = (double) k + 0.5D;
67 if (world.getTypeId(i - 1, j, k) == Block.PORTAL.id) {
68 d5 -= 0.5D;
69 }
70
71 if (world.getTypeId(i + 1, j, k) == Block.PORTAL.id) {
72 d5 += 0.5D;
73 }
74
75 if (world.getTypeId(i, j, k - 1) == Block.PORTAL.id) {
76 d1 -= 0.5D;
77 }
78
79 if (world.getTypeId(i, j, k + 1) == Block.PORTAL.id) {
80 d1 += 0.5D;
81 }
82
83 entity.setPositionRotation(d5, d6, d1, entity.yaw, 0.0F);
84 entity.motX = entity.motY = entity.motZ = 0.0D;
85 return true;
86 } else {
87 return false;
88 }
89 }
90
91 public boolean c(World world, Entity entity) {
92 byte b0 = 16;
93 double d0 = -1.0D;
94 int i = MathHelper.floor(entity.locX);
95 int j = MathHelper.floor(entity.locY);
96 int k = MathHelper.floor(entity.locZ);
97 int l = i;
98 int i1 = j;
99 int j1 = k;
100 int k1 = 0;
101 int l1 = this.a.nextInt(4);
102
103 int i2;
104 double d1;
105 int j2;
106 double d2;
107 int k2;
108 int l2;
109 int i3;
110 int j3;
111 int k3;
112 int l3;
113 int i4;
114 int j4;
115 int k4;
116 double d3;
117 double d4;
118
119 for (i2 = i - b0; i2 <= i + b0; ++i2) {
120 d1 = (double) i2 + 0.5D - entity.locX;
121
122 for (j2 = k - b0; j2 <= k + b0; ++j2) {
123 d2 = (double) j2 + 0.5D - entity.locZ;
124
125 label271:
126 for (l2 = 127; l2 >= 0; --l2) {
127 if (world.isEmpty(i2, l2, j2)) {
128 while (l2 > 0 && world.isEmpty(i2, l2 - 1, j2)) {
129 --l2;
130 }
131
132 for (k2 = l1; k2 < l1 + 4; ++k2) {
133 j3 = k2 % 2;
134 i3 = 1 - j3;
135 if (k2 % 4 >= 2) {
136 j3 = -j3;
137 i3 = -i3;
138 }
139
140 for (l3 = 0; l3 < 3; ++l3) {
141 for (k3 = 0; k3 < 4; ++k3) {
142 for (j4 = -1; j4 < 4; ++j4) {
143 i4 = i2 + (k3 - 1) * j3 + l3 * i3;
144 k4 = l2 + j4;
145 int l4 = j2 + (k3 - 1) * i3 - l3 * j3;
146
147 if (j4 < 0 && !world.getMaterial(i4, k4, l4).isBuildable() || j4 >= 0 && !world.isEmpty(i4, k4, l4)) {
148 continue label271;
149 }
150 }
151 }
152 }
153
154 d3 = (double) l2 + 0.5D - entity.locY;
155 d4 = d1 * d1 + d3 * d3 + d2 * d2;
156 if (d0 < 0.0D || d4 < d0) {
157 d0 = d4;
158 l = i2;
159 i1 = l2;
160 j1 = j2;
161 k1 = k2 % 4;
162 }
163 }
164 }
165 }
166 }
167 }
168
169 if (d0 < 0.0D) {
170 for (i2 = i - b0; i2 <= i + b0; ++i2) {
171 d1 = (double) i2 + 0.5D - entity.locX;
172
173 for (j2 = k - b0; j2 <= k + b0; ++j2) {
174 d2 = (double) j2 + 0.5D - entity.locZ;
175
176 label219:
177 for (l2 = 127; l2 >= 0; --l2) {
178 if (world.isEmpty(i2, l2, j2)) {
179 while (world.isEmpty(i2, l2 - 1, j2)) {
180 --l2;
181 }
182
183 for (k2 = l1; k2 < l1 + 2; ++k2) {
184 j3 = k2 % 2;
185 i3 = 1 - j3;
186
187 for (l3 = 0; l3 < 4; ++l3) {
188 for (k3 = -1; k3 < 4; ++k3) {
189 j4 = i2 + (l3 - 1) * j3;
190 i4 = l2 + k3;
191 k4 = j2 + (l3 - 1) * i3;
192 if (k3 < 0 && !world.getMaterial(j4, i4, k4).isBuildable() || k3 >= 0 && !world.isEmpty(j4, i4, k4)) {
193 continue label219;
194 }
195 }
196 }
197
198 d3 = (double) l2 + 0.5D - entity.locY;
199 d4 = d1 * d1 + d3 * d3 + d2 * d2;
200 if (d0 < 0.0D || d4 < d0) {
201 d0 = d4;
202 l = i2;
203 i1 = l2;
204 j1 = j2;
205 k1 = k2 % 2;
206 }
207 }
208 }
209 }
210 }
211 }
212 }
213
214 int i5 = l;
215 int j5 = i1;
216
217 j2 = j1;
218 int k5 = k1 % 2;
219 int l5 = 1 - k5;
220
221 if (k1 % 4 >= 2) {
222 k5 = -k5;
223 l5 = -l5;
224 }
225
226 boolean flag;
227
228 // CraftBukkit start - portal create event
229 java.util.Collection<org.bukkit.block.Block> blocks = new java.util.HashSet<org.bukkit.block.Block>();
230 // Find out what blocks the portal is going to modify, duplicated from below
231 org.bukkit.World bworld = world.getWorld();
232
233 if (d0 < 0.0D) {
234 if (i1 < 70) {
235 i1 = 70;
236 }
237
238 if (i1 > 118) {
239 i1 = 118;
240 }
241
242 j5 = i1;
243
244 for (l2 = -1; l2 <= 1; ++l2) {
245 for (k2 = 1; k2 < 3; ++k2) {
246 for (j3 = -1; j3 < 3; ++j3) {
247 i3 = i5 + (k2 - 1) * k5 + l2 * l5;
248 l3 = j5 + j3;
249 k3 = j2 + (k2 - 1) * l5 - l2 * k5;
250 blocks.add(bworld.getBlockAt(i3, l3, k3));
251 }
252 }
253 }
254 }
255
256 for (l2 = 0; l2 < 4; ++l2) {
257 for (k2 = 0; k2 < 4; ++k2) {
258 for (j3 = -1; j3 < 4; ++j3) {
259 i3 = i5 + (k2 - 1) * k5;
260 l3 = j5 + j3;
261 k3 = j2 + (k2 - 1) * l5;
262 blocks.add(bworld.getBlockAt(i3, l3, k3));
263 }
264 }
265 }
266
267 PortalCreateEvent event = new PortalCreateEvent(blocks, bworld);
268 Bukkit.getServer().getPluginManager().callEvent(event);
269
270 if (event.isCancelled()) {
271 return true;
272 }
273 // CraftBukkit end
274
275 if (d0 < 0.0D) {
276 if (i1 < 70) {
277 i1 = 70;
278 }
279
280 if (i1 > 118) {
281 i1 = 118;
282 }
283
284 j5 = i1;
285
286 for (l2 = -1; l2 <= 1; ++l2) {
287 for (k2 = 1; k2 < 3; ++k2) {
288 for (j3 = -1; j3 < 3; ++j3) {
289 i3 = i5 + (k2 - 1) * k5 + l2 * l5;
290 l3 = j5 + j3;
291 k3 = j2 + (k2 - 1) * l5 - l2 * k5;
292 flag = j3 < 0;
293 world.setTypeId(i3, l3, k3, flag ? Block.OBSIDIAN.id : 0);
294 }
295 }
296 }
297 }
298
299 for (l2 = 0; l2 < 4; ++l2) {
300 world.suppressPhysics = true;
301
302 for (k2 = 0; k2 < 4; ++k2) {
303 for (j3 = -1; j3 < 4; ++j3) {
304 i3 = i5 + (k2 - 1) * k5;
305 l3 = j5 + j3;
306 k3 = j2 + (k2 - 1) * l5;
307 flag = k2 == 0 || k2 == 3 || j3 == -1 || j3 == 3;
308 world.setTypeId(i3, l3, k3, flag ? Block.OBSIDIAN.id : Block.PORTAL.id);
309 }
310 }
311
312 world.suppressPhysics = false;
313
314 for (k2 = 0; k2 < 4; ++k2) {
315 for (j3 = -1; j3 < 4; ++j3) {
316 i3 = i5 + (k2 - 1) * k5;
317 l3 = j5 + j3;
318 k3 = j2 + (k2 - 1) * l5;
319 world.applyPhysics(i3, l3, k3, world.getTypeId(i3, l3, k3));
320 }
321 }
322 }
323
324 return true;
325 }
326}