-
Notifications
You must be signed in to change notification settings - Fork 497
/
PowerHandler.java
462 lines (398 loc) · 12 KB
/
PowerHandler.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
/**
* Copyright (c) SpaceToad, 2011 http://www.mod-buildcraft.com
*
* BuildCraft is distributed under the terms of the Minecraft Mod Public License
* 1.0, or MMPL. Please check the contents of the license located in
* http://www.mod-buildcraft.com/MMPL-1.0.txt
*/
package buildcraft.api.power;
import buildcraft.api.core.SafeTimeTracker;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraftforge.common.ForgeDirection;
/**
* The PowerHandler is similar to FluidTank in that it holds your power and
* allows standardized interaction between machines.
*
* To receive power to your machine you needs create an instance of PowerHandler
* and implement IPowerReceptor on the TileEntity.
*
* If you plan emit power, you need only implement IPowerEmitter. You do not
* need a PowerHandler. Engines have a PowerHandler because they can also
* receive power from other Engines.
*
* See TileRefinery for a simple example of a power using machine.
*
* @see IPowerReceptor
* @see IPowerEmitter
*
* @author CovertJaguar <http://www.railcraft.info/>
*/
public final class PowerHandler {
public static enum Type {
ENGINE, GATE, MACHINE, PIPE, STORAGE;
public boolean canReceiveFromPipes() {
switch (this) {
case MACHINE:
case STORAGE:
return true;
default:
return false;
}
}
public boolean eatsEngineExcess() {
switch (this) {
case MACHINE:
case STORAGE:
return true;
default:
return false;
}
}
}
/**
* Extend this class to create custom Perdition algorithms (its not final).
*
* NOTE: It is not possible to create a Zero perdition algorithm.
*/
public static class PerditionCalculator {
public static final float DEFAULT_POWERLOSS = 1F;
public static final float MIN_POWERLOSS = 0.01F;
private final double powerLoss;
public PerditionCalculator() {
powerLoss = DEFAULT_POWERLOSS;
}
/**
* Simple constructor for simple Perdition per tick.
*
* @param powerLoss power loss per tick
*/
public PerditionCalculator(double powerLoss) {
if (powerLoss < MIN_POWERLOSS) {
powerLoss = MIN_POWERLOSS;
}
this.powerLoss = powerLoss;
}
/**
* Apply the perdition algorithm to the current stored energy. This
* function can only be called once per tick, but it might not be called
* every tick. It is triggered by any manipulation of the stored energy.
*
* @param powerHandler the PowerHandler requesting the perdition update
* @param current the current stored energy
* @param ticksPassed ticks since the last time this function was called
* @return
*/
public double applyPerdition(PowerHandler powerHandler, double current, long ticksPassed) {
// float prev = current;
current -= powerLoss * ticksPassed;
if (current < 0) {
current = 0;
}
// powerHandler.totalLostPower += prev - current;
return current;
}
/**
* Taxes a flat rate on all incoming power.
*
* Defaults to 0% tax rate.
*
* @return percent of input to tax
*/
public double getTaxPercent() {
return 0;
}
}
public static final PerditionCalculator DEFAULT_PERDITION = new PerditionCalculator();
private double minEnergyReceived;
private double maxEnergyReceived;
private double maxEnergyStored;
private double activationEnergy;
private double energyStored = 0;
private final SafeTimeTracker doWorkTracker = new SafeTimeTracker();
private final SafeTimeTracker sourcesTracker = new SafeTimeTracker();
private final SafeTimeTracker perditionTracker = new SafeTimeTracker();
public final int[] powerSources = new int[6];
public final IPowerReceptor receptor;
private PerditionCalculator perdition;
private final PowerReceiver receiver;
private final Type type;
// Debug
// private double totalLostPower = 0;
// private double totalReceivedPower = 0;
// private double totalUsedPower = 0;
// private long startTime = -1;
public PowerHandler(IPowerReceptor receptor, Type type) {
this.receptor = receptor;
this.type = type;
this.receiver = new PowerReceiver();
this.perdition = DEFAULT_PERDITION;
}
public PowerReceiver getPowerReceiver() {
return receiver;
}
public double getMinEnergyReceived() {
return minEnergyReceived;
}
public double getMaxEnergyReceived() {
return maxEnergyReceived;
}
public double getMaxEnergyStored() {
return maxEnergyStored;
}
public double getActivationEnergy() {
return activationEnergy;
}
public double getEnergyStored() {
return energyStored;
}
/**
* Setup your PowerHandler's settings.
*
* @param minEnergyReceived This is the minimum about of power that will be
* accepted by the PowerHandler. This should generally be greater than the
* activationEnergy if you plan to use the doWork() callback. Anything
* greater than 1 will prevent Redstone Engines from powering this Provider.
* @param maxEnergyReceived The maximum amount of power accepted by the
* PowerHandler. This should generally be less than 500. Too low and larger
* engines will overheat while trying to power the machine. Too high, and
* the engines will never warm up. Greater values also place greater strain
* on the power net.
* @param activationEnergy If the stored energy is greater than this value,
* the doWork() callback is called (once per tick).
* @param maxStoredEnergy The maximum amount of power this PowerHandler can
* store. Values tend to range between 100 and 5000. With 1000 and 1500
* being common.
*/
public void configure(double minEnergyReceived, double maxEnergyReceived, double activationEnergy, double maxStoredEnergy) {
if (minEnergyReceived > maxEnergyReceived) {
maxEnergyReceived = minEnergyReceived;
}
this.minEnergyReceived = minEnergyReceived;
this.maxEnergyReceived = maxEnergyReceived;
this.maxEnergyStored = maxStoredEnergy;
this.activationEnergy = activationEnergy;
}
/**
* Allows you define perdition in terms of loss/ticks.
*
* This function is mostly for legacy implementations. See
* PerditionCalculator for more complex perdition formulas.
*
* @param powerLoss
* @param powerLossRegularity
* @see PerditionCalculator
*/
public void configurePowerPerdition(int powerLoss, int powerLossRegularity) {
if (powerLoss == 0 || powerLossRegularity == 0) {
perdition = new PerditionCalculator(0);
return;
}
perdition = new PerditionCalculator((float) powerLoss / (float) powerLossRegularity);
}
/**
* Allows you to define a new PerditionCalculator class to handler perdition
* calculations.
*
* For example if you want exponentially increasing loss based on amount
* stored.
*
* @param perdition
*/
public void setPerdition(PerditionCalculator perdition) {
if (perdition == null)
perdition = DEFAULT_PERDITION;
this.perdition = perdition;
}
public PerditionCalculator getPerdition() {
if (perdition == null)
return DEFAULT_PERDITION;
return perdition;
}
/**
* Ticks the power handler. You should call this if you can, but its not
* required.
*
* If you don't call it, the possibility exists for some weirdness with the
* perdition algorithm and work callback as its possible they will not be
* called on every tick they otherwise would be. You should be able to
* design around this though if you are aware of the limitations.
*/
public void update() {
// if (startTime == -1)
// startTime = receptor.getWorld().getTotalWorldTime();
// else {
// long duration = receptor.getWorld().getTotalWorldTime() - startTime;
// System.out.printf("Power Stats: %s - Stored: %.2f Gained: %.2f - %.2f/t Lost: %.2f - %.2f/t Used: %.2f - %.2f/t%n", receptor.getClass().getSimpleName(), energyStored, totalReceivedPower, totalReceivedPower / duration, totalLostPower, totalLostPower / duration, totalUsedPower, totalUsedPower / duration);
// }
applyPerdition();
applyWork();
validateEnergy();
}
private void applyPerdition() {
if (perditionTracker.markTimeIfDelay(receptor.getWorld(), 1) && energyStored > 0) {
double newEnergy = getPerdition().applyPerdition(this, energyStored, perditionTracker.durationOfLastDelay());
if (newEnergy == 0 || newEnergy < energyStored)
energyStored = newEnergy;
else
energyStored = DEFAULT_PERDITION.applyPerdition(this, energyStored, perditionTracker.durationOfLastDelay());
validateEnergy();
}
}
private void applyWork() {
if (energyStored >= activationEnergy) {
if (doWorkTracker.markTimeIfDelay(receptor.getWorld(), 1)) {
receptor.doWork(this);
}
}
}
private void updateSources(ForgeDirection source) {
if (sourcesTracker.markTimeIfDelay(receptor.getWorld(), 1)) {
for (int i = 0; i < 6; ++i) {
powerSources[i] -= sourcesTracker.durationOfLastDelay();
if (powerSources[i] < 0) {
powerSources[i] = 0;
}
}
}
if (source != null)
powerSources[source.ordinal()] = 10;
}
/**
* Extract energy from the PowerHandler. You must call this even if doWork()
* triggers.
*
* @param min
* @param max
* @param doUse
* @return amount used
*/
public double useEnergy(double min, double max, boolean doUse) {
applyPerdition();
double result = 0;
if (energyStored >= min) {
if (energyStored <= max) {
result = energyStored;
if (doUse) {
energyStored = 0;
}
} else {
result = max;
if (doUse) {
energyStored -= max;
}
}
}
validateEnergy();
// if (doUse)
// totalUsedPower += result;
return result;
}
public void readFromNBT(NBTTagCompound data) {
readFromNBT(data, "powerProvider");
}
public void readFromNBT(NBTTagCompound data, String tag) {
NBTTagCompound nbt = data.getCompoundTag(tag);
energyStored = nbt.getDouble("energyStored");
}
public void writeToNBT(NBTTagCompound data) {
writeToNBT(data, "powerProvider");
}
public void writeToNBT(NBTTagCompound data, String tag) {
NBTTagCompound nbt = new NBTTagCompound();
nbt.setDouble("energyStored", energyStored);
data.setCompoundTag(tag, nbt);
}
public final class PowerReceiver {
private PowerReceiver() {
}
public double getMinEnergyReceived() {
return minEnergyReceived;
}
public double getMaxEnergyReceived() {
return maxEnergyReceived;
}
public double getMaxEnergyStored() {
return maxEnergyStored;
}
public double getActivationEnergy() {
return activationEnergy;
}
public double getEnergyStored() {
return energyStored;
}
public Type getType() {
return type;
}
public void update() {
PowerHandler.this.update();
}
/**
* The amount of power that this PowerHandler currently needs.
*
* @return
*/
public double powerRequest() {
update();
return Math.min(maxEnergyReceived, maxEnergyStored - energyStored);
}
/**
* Add power to the PowerReceiver from an external source.
*
* IPowerEmitters are responsible for calling this themselves.
*
* @param quantity
* @param from
* @return the amount of power used
*/
public double receiveEnergy(Type source, final double quantity, ForgeDirection from) {
double used = quantity;
if (source == Type.ENGINE) {
if (used < minEnergyReceived) {
return 0;
} else if (used > maxEnergyReceived) {
used = maxEnergyReceived;
}
}
updateSources(from);
used -= used * getPerdition().getTaxPercent();
used = addEnergy(used);
applyWork();
if (source == Type.ENGINE && type.eatsEngineExcess()) {
used = Math.min(quantity, maxEnergyReceived);
}
// totalReceivedPower += used;
return used;
}
}
/**
*
* @return the amount the power changed by
*/
public double addEnergy(double quantity) {
energyStored += quantity;
if (energyStored > maxEnergyStored) {
quantity -= energyStored - maxEnergyStored;
energyStored = maxEnergyStored;
} else if (energyStored < 0) {
quantity -= energyStored;
energyStored = 0;
}
applyPerdition();
return quantity;
}
public void setEnergy(double quantity) {
this.energyStored = quantity;
validateEnergy();
}
public boolean isPowerSource(ForgeDirection from) {
return powerSources[from.ordinal()] != 0;
}
private void validateEnergy() {
if (energyStored < 0) {
energyStored = 0;
}
if (energyStored > maxEnergyStored) {
energyStored = maxEnergyStored;
}
}
}