Commit graph

872 commits

Author SHA1 Message Date
wraitii
892f97743b Fix some cases of units getting stuck.
This fixes an off-by-one error that led to entities sometimes getting
stuck against obstructions.
It also increases the max-range of the short pathfinder to help entities
find their way around corridors and house blocks.

Fixes 2ff8614ce2 (off-by-one error) and reverts the range changes from
32e8ed51aa

Reported By: Freagarach
Fixes #5586 . Refs #5624

Differential Revision: https://code.wildfiregames.com/D2754
This was SVN commit r23699.
2020-05-25 20:13:35 +00:00
elexis
ebf0591a8f Skip and warn about globalscripts and random map tests following 077c4f2576 and 0a6db43c83 when testing without public mod present or if the respective folders don't exist.
Differential Revision: https://code.wildfiregames.com/D2645
Reported By: ricotz
Reviewed By: Angen
Comments By: Stan, Freagarach
This was SVN commit r23598.
2020-04-23 12:06:56 +00:00
Stan
0ad79096bd Add a C++ interface for CCmpAttack.
This allows Atlas not to rely on eval() to get access to the attack
component.
Add a quick test for the added method.
This fixes the animation speed matching that of the actor instead of the
template.
Remove some dead code after af2abb8cbf
Fixes: #5129
Reviewed by: @Angen
Comments by: @elexis
Differential Revision: https://code.wildfiregames.com/D2464
This was SVN commit r23592.
2020-04-21 21:44:05 +00:00
Angen
8bfb449375 Support garrisoned enitites defined in map files.
This is adding support to handle garrisoned entities defined in map
files by game engine and atlas allowing future extension for atlas ui
and solving recreation of entites on init in D1958. Also solving
deepfreeze described in D2562.

Differential Revision; https://code.wildfiregames.com/D2597
Ticket: #3008
Patch by: Freagarach
Comments by: elexis
This was SVN commit r23529.
2020-03-15 13:54:50 +00:00
Angen
0b8aa7eb5a Fix GetTerritoryPercentage when changing number of players
Check for player being out of bounds after m_TerritoryCellCounts may be
recomputed.

Differential Revision: https://code.wildfiregames.com/D2046
Reviewed by: @Stan
This was SVN commit r23510.
2020-02-23 18:24:31 +00:00
Angen
0535eb9b92 Fix formationmember not leaving walking state if offset cannot be reached
Fail movement for formationmember when cannot find path to destination
and formationcontroller is not moving so formationmember will enter idle
state or follow next command relying on member stopping movement first.

Introduced in a1dc9cadd8.

Differentail Revision: https://code.wildfiregames.com/D2438

This was SVN commit r23496.
2020-02-13 19:44:03 +00:00
elexis
0dff6940f7 Implement a FixedVector2D::CompareLengthSquared function to provide a more performant alternative to CompareLength.
Avoids computing the square of the compared value every call.

Differential Revision: https://code.wildfiregames.com/D2058
Reviewed By: Vladislav
This was SVN commit r23489.
2020-02-09 21:00:43 +00:00
vladislavbelov
39986f80e1 Adds const to PathfinderPassability where possible.
This was SVN commit r23362.
2020-01-10 20:37:59 +00:00
vladislavbelov
c3ded34cf7 Improves performance of Atlas terrain elevation by updating the only changed terrain.
Reviewed By: Itms
Comments By: Stan
Differential Revision: https://code.wildfiregames.com/D2557
This was SVN commit r23361.
2020-01-10 19:54:35 +00:00
vladislavbelov
a8f241da5d Adds snapping to edges for buildings
Allows to place buildings a bit faster and more perfectly aligned. Also
it helps to find a nearest placeable position in some cases.

Reviewed By: elexis
Comments By: Stan, wraitii
Differential Revision: https://code.wildfiregames.com/D2079
This was SVN commit r23330.
2020-01-05 01:08:05 +00:00
Angen
b1a78ce285 Treat min range in the same manner as max range when computing goal
Problem description:
When unit gets command to move to the range exactly X units from some
point/entity, what means minRange == maxRange, that triggers computing
goal when distance < minRange with result distance(goal, target) >
maxRange, because minRange computation uses clearance even when is
treating target as circle.

Solution:
Do not use clearance when treating target as circle, so computation when
distance < minimum range is done in same way as computation when
distance > maximum range and so computed goal has correct position.

Reported on forum:
https://wildfiregames.com/forum/index.php?/topic/27384-strange-landing-on-the-island-and-unable-to-attack/
Differential Revision: https://code.wildfiregames.com/D2512
Tested by: gameboy
This was SVN commit r23283.
2019-12-26 21:03:15 +00:00
vladislavbelov
d6d6cb0696 Refactors ownership of SOverlayTexturedLine in CCmpRangeOverlayRenderer
Differential Revision: https://code.wildfiregames.com/D2463
This was SVN commit r23270.
2019-12-20 22:33:50 +00:00
vladislavbelov
df329d1b81 Optimise out of frustum rendering of texture overlays.
Reviewed By: wraitii
Commented By: Stan
Differential Revision: https://code.wildfiregames.com/D1847
This was SVN commit r23229.
2019-12-10 23:13:37 +00:00
Stan
28e94c0d96 Cleanup CCmpRallyPointRenderer
Replace std::deque by std::vector
Replace some casts by cpp casts
Move the class and struct declaration to a separate file for clarity.
Fixes db864f10c3 by removing offending function
Refs #5288
Refs D1681

Reviewed by: @vladislavbelov
Differential Revision: https://code.wildfiregames.com/D1682
This was SVN commit r23029.
2019-10-02 15:01:46 +00:00
wraitii
92ad6a61fa Fix OOS introduced by pathfinder threading preparation diff d592bf9cb6
Following d592bf9cb6, paths were computed at the end of turn N, and then
messages were sent at the beginning of turn N+1. However, the path
requests were removed at the end of turn N and so weren't serialised,
and neither were computed paths. This meant rejoiners would OOS when the
game was serialised with pending path results.

To fix this in preparation for threading, the architecture needs to
change slightly so that requests are kept and serialised correctly, and
rejoiners can compute the paths after deserialisation, in order to send
the messages at the beginning of turn N+1.

Fixes #5604

Reported By: elexis
Differential Revision: https://code.wildfiregames.com/D2317
This was SVN commit r22979.
2019-09-23 06:38:16 +00:00
wraitii
077c4f2576 Adds a "properties"-property to resources and let mods be able to prevent resources from being bartered, traded and/or tributed.
Patch By: Freagarach
Comments By: elexis, Stan`, Nescio
Reviewed By: wraitii, Angen
Fixes #4370

Differential Revision: https://code.wildfiregames.com/D1846
This was SVN commit r22970.
2019-09-22 14:53:47 +00:00
vladislavbelov
c17e7ee92f Adds a helper function to pick entities with a given component and a given filter on screen.
Reviewed By: wraitii
Commented By: Stan, elexis
Differential Revision: https://code.wildfiregames.com/D2207
This was SVN commit r22939.
2019-09-20 07:45:55 +00:00
vladislavbelov
7985ea4b8e Removes usages of duplication of Clamp function in simulation and atlas. Refs D1763.
This was SVN commit r22927.
2019-09-18 15:02:36 +00:00
wraitii
d592bf9cb6 Move path computations to an actual worker to prepare for threading.
This moves the "async" pathfinding computations to a worker, preparing
the architecture for threading.

Tested By: Kuba386, Stan`
Differential Revision: https://code.wildfiregames.com/D1918
This was SVN commit r22902.
2019-09-15 09:27:10 +00:00
elexis
a84e2e57df Use ScriptInterface::CreateObject for ToJSVal<CColor>, and for ToJSVal<Grid<u8> >, ToJSVal<Grid<u16> > used by the AIManager obtaining the pathfinder grid.
Make that function static, so that it can be used for these functions
without slowly having to obtain the ScriptInterface instance using
GetScriptInterfaceAndCBData just to get the JSContext again.
Remove few redundant conversions for CreateObject arguments.

Differential Revision: https://code.wildfiregames.com/D2128
Tested on: gcc 9.1.0, clang 8.0.1, Jenkins
Tedious performance testing in: D2128, D2127

This was SVN commit r22894.
2019-09-13 00:56:51 +00:00
wraitii
2233a76e2a Fix units sometimes turning around when fleeing (introduced by D1987/99a341f379)
D1987/99a341f379 introduced logic to predict the target movement, which
fixed unit chasing. However, sometimes fleeing units would then predict
that their target will end up in front of them, so they turned around
towards the attacker.

This is fixed by not anticipating the position when it would cause the
vector towards to target to change direction.

Reported By: Freagarach
Tested By: Freagarach
Fixes #5541

Differential Revision: https://code.wildfiregames.com/D2275
This was SVN commit r22885.
2019-09-10 18:11:07 +00:00
wraitii
fcc7a831bb Fix issues with MakeGoalReachable when the goal wasn't reachable following D1882/208fc30ddd
This fixes the issue and adds a regression test.

Differential Revision: https://code.wildfiregames.com/D2277
This was SVN commit r22878.
2019-09-09 18:57:59 +00:00
elexis
508da732af Implement NetClient PushGuiMessage using parameter pack and ScriptInterface::CreateObject from D2080 / b4626359f5 to replace remaining Eval function calls.
Specialize ToJSVal<char[n]> to allow passing string literals as
arguments.
Freeze NetClient GUI messages.
Supersede related c-style casts with static casts.
Remove few unneeded conversions.

Differential Revision: https://code.wildfiregames.com/D2267
Tested: clang 8.0.1, Jenkins

This was SVN commit r22867.
2019-09-07 16:51:44 +00:00
elexis
de050ef7e2 Remove some unused Profiler.h and CLogger.h includes.
NativeWrapperDefns.h from 4e87fef3da, found in audit of 7c21a0cf8e.

Differential Revision: https://code.wildfiregames.com/D2268
Tested on: clang 8.0.1, Jenkins

This was SVN commit r22863.
2019-09-07 13:35:45 +00:00
wraitii
67795d4451 Fix duplication and clang warning in unreachable gathering target fix 30dcd696eb / D2120
The function was put in an anonymous namespace to avoid linking errors
should another one be defined elsewhere.

Reviewed By: elexis
Differential Revision: https://code.wildfiregames.com/D2243
This was SVN commit r22825.
2019-09-01 14:10:02 +00:00
wraitii
208fc30ddd Optimise MakeGoalReachable and FindNearestNavcellInRegions (D53 outtake)
By leveraging custom ordering in std::set, MakeGoalReachable and
FindNearestNavcellInRegions can be optimised and the code simplified.

Differential Revision: https://code.wildfiregames.com/D1882
This was SVN commit r22817.
2019-09-01 08:59:17 +00:00
wraitii
30dcd696eb Improve gathering behaviour when a target is not reachable
Units can be stuck in gather states when the target ought to be
collectable from, but it's actually unreachable.

A new FINDINGNEWTARGET intermediate state for GATHER will try and find a
new, different target to collect from. This should generally improve the
behaviour (perfect reachability checks would be required to completely
fix it).
Use this also when the target is knowably unreachable / uncollectible.

Fixes #5529

Differential Revision: https://code.wildfiregames.com/D2120
This was SVN commit r22816.
2019-09-01 07:35:32 +00:00
wraitii
9e41ff39fc Unit Motion - make sure units don't get stuck in the special long-path computation step.
In some rare cases, units could be stuck in the special state of 3
failed path computations, making them always compute long paths instead
of trying short paths again. This can happen when they compute a long
path successfully, but the unit cannot actually move as it gets
obstructed right away.
Make sure this state is never kept for more than one turn to fix this
problem.

Refs #5569 (probable fix but kept open for further investigating).

Differential Revision: https://code.wildfiregames.com/D2239
This was SVN commit r22815.
2019-09-01 07:31:21 +00:00
wraitii
e16c4c4800 Add a system component to handle stat modifiers, make technologies and auras use this common interface.
The ModifiersManager system component provides an interface to add and
remove modifiers, and get modified stats.
The goal is to merge all the different stat-modifying systems 0 A.D. has
implemented over the years.
This commit makes technologies and auras use ModifiersManager. Some
cheats and AI bonuses also have a similar stat-modifying effect that
have not yet been updated.

Further, this system component makes it possible for e.g. triggers to
easily add modifiers, enabling the writing of Castle Blood Automatic,
RPG or Tower Defense maps without the need for mods or hacks.

The 'Modifier' name was preferred over 'Modification' as it is shorter
and more readable, along with the logic that 'modifiers' store
'modifications' and this stores modifiers. Renaming of other functions
and classes has been left for future work for now.

Internally, this uses a JS data structure. If performance issues arise
with it in the future, this data structure or the whole component could
be moved to C++.
The performance has been tested to be about as fast as the current
implementations (and specifically much faster for global auras with no
icons). Testing showed that sending value modification messages was by
far the slowest part.

Comments by: leper, Stan, elexis
Differential Revision: https://code.wildfiregames.com/D274
This was SVN commit r22767.
2019-08-24 07:37:07 +00:00
wraitii
a908ce889c Hierarchical Pathfinder - Add Global Regions / Optimise MakeGoalReachable
Optimise MakeGoalReachable using global regions, by leveraging the fact
that we can easily know which goal regions we can reach. Particularly
for point-goals, it becomes almost instant.
This does not change hashes.

Differential Revision: https://code.wildfiregames.com/D1835
This was SVN commit r22653.
2019-08-12 13:19:01 +00:00
wraitii
8ef8a9de89 Fix VisualActor OOS introduced in rp22586
A call to SelectAnimation("idle") was left over.

Reported by: elexis
Fixes #5552

Differential Revision: https://code.wildfiregames.com/D2169
This was SVN commit r22648.
2019-08-12 08:05:04 +00:00
Itms
64b477625d Upgrade SpiderMonkey to version 45.0.2, refs #4893.
- Various build changes, in particular NSPR is not needed on Unix
anymore
- Add js/Initialization.h to source/scriptinterface/ScriptEngine.h
- Use nullptr instead of JS::NullPtr(), see
https://bugzilla.mozilla.org/show_bug.cgi?id=1164602
- Remove `JS::RuntimeOptionsRef.varObjFix`, see
https://bugzilla.mozilla.org/show_bug.cgi?id=1171177
- Remove uses of `AutoIdArray`, see
https://bugzilla.mozilla.org/show_bug.cgi?id=1191529
- `JS_InternUCStringN` has been renamed, see
https://bugzilla.mozilla.org/show_bug.cgi?id=1178581
- `JS::Evaluate` now takes scope chains explicitly, see
https://bugzilla.mozilla.org/show_bug.cgi?id=1097987
- Array functions (such as `JS_IsArrayObject`) are fallible and output
to params, see https://bugzilla.mozilla.org/show_bug.cgi?id=f3d35d8
- Remove `JSCLASS_CACHED_PROTO_WIDTH` workaround in our code, see
https://bugzilla.mozilla.org/show_bug.cgi?id=1236373
- Remove compile'n go (`setCompileAndGo`) and replace it by
`setIsRunOnce` which will become the default in the future, see
https://bugzilla.mozilla.org/show_bug.cgi?id=679939
- Mark shared memory in direct access operations
(`JS_GetUint16ArrayData` and `JS_GetUint8ArrayData`), see
https://bugzilla.mozilla.org/show_bug.cgi?id=1176214
- Use new `JS::ObjectOpResult`, see
https://bugzilla.mozilla.org/show_bug.cgi?id=1113369

Thanks to wraitii, elexis, Krinkle and historic_bruno for contributions
and comments, and to gentz, madpilot, s0600204 and Stan for testing and
indirect contributions.

Differential Revision: https://code.wildfiregames.com/D1510
This was SVN commit r22627.
2019-08-07 22:37:43 +00:00
wraitii
5c4d124d2a Refactor renderer options.
This moves the renderer options into their own class to:@
  - allow one to only include the rendering options, not the whole
renderer header, when one wants access to rendering options.
  - centralise rendering changes and their side-effects.
  - clean up code.

Tested by: historic_bruno, Freagarach
Commented by: historic_bruno
Differential Revision: https://code.wildfiregames.com/D1929
This was SVN commit r22610.
2019-08-04 08:28:30 +00:00
wraitii
2ff8614ce2 Unit Motion - Improve behaviour around obstructions and unreachable goals
Use the "pretend correct path" behaviour for short goals too. This is a
fix for #5545, since the position check now works correctly without
needing to add a tricky check for path-vs-path distance.

Simplify HandleObstructedMove to use ComputePathToGoal more. This means
we occasionally compute a long path when stuck, which fixes two cases of
stuck units reported in #5547.

Move some common calls into functions for convenience.

Make sure the short-path-waypoint-range-relaxing introduced in
32e8ed51aa doesn't happen for the last waypoint, which caused units to
occasionally never get in range of the last waypoint.

Clear short path waypoints when computing a long path.

This won't fix all instances of unit dancing, but it should improve most
of them.

Fixes #5545, Fixes #5547

Differential Revision: https://code.wildfiregames.com/D2135
This was SVN commit r22609.
2019-08-04 08:16:09 +00:00
wraitii
eab4f9fdde Replace {gender} by {phenotype} and support this tag in VisualActor.
A random phenotype can be chosen by giving multiple tokens to the
template.
This allows giving different looks to the same template.

Comments By: stan, vladislav, elexis
Patch By: Freagarach
Reviewed By: wraitii
Differential Revision: https://code.wildfiregames.com/D1955
This was SVN commit r22586.
2019-08-01 19:14:40 +00:00
wraitii
c03abd1e92 UnitMotion cleanup - remove dead code, add a common path for MoveTo functions, rename BeginPathing, move functions around for better readability.
BeginPathing renamed to ComputePathToGoal, as that is what this function
does.
IsMoving renamed to IsMoveRequested, as the function returns true when
the unit has a move request going on, not when it is actually moving
across the map, which was misleading.

UpdateMovementState's implementation moved closer to where it is used.

PathIsShort and WAYPOINT_ADVANCE_MAX are currently unused, thus deleted.

Differential Revision: https://code.wildfiregames.com/D2067
This was SVN commit r22568.
2019-07-28 10:51:12 +00:00
wraitii
1e2f511a09 UnitMotion - reject paths that would not take the unit closer to the goal than it is now.
This helps with #3144 and units not going idle when ordered to clump
together.

By rejecting paths that would not take the unit closer to the goal than
it is, we can avoid the case where a unit at A finds a short path to B,
goes there, gets stuck, finds a new short path to A, etc. ad infinitum.

It doesn't completely fix the problem since two units moving might still
occasionally become stuck against one another, but it makes it rarer
(unit pushing would probably finish solving this).

This assumes that being as close as possible to the goal is the best
behaviour when trying to move somewhere, even when it is unreachable.

Refs #3144

Differential Revision: https://code.wildfiregames.com/D2075
This was SVN commit r22566.
2019-07-28 10:29:28 +00:00
wraitii
7a823ca671 UnitMotion - Fix a rare pathfinding issues where units tried going straight through walls, and make sure a long path is computed even when the target is within short path or direct path range.
This fixes a regression introduced by 055c848c1a: when an entity is
ordered to move to a target within short path distance (or direct path
distance), it no longer computed at least one long path, which meant it
could be stuck forever if the target was not actually reachable (such as
behind a wall).
To fix this, compute a long path after 3 failed computations, which
should result in a delay of 1-3 turns. The previous code did this after
1 failed try - the decision to make it 3 is mostly based on the idea
that in most cases, being stuck means we ran into units, not that we
were ordered somewhere close. Should there be complaints, it could be
lowered to 2 or 1.

This fixes a second issue, reported in #4473: units sometimes get stuck,
particularly when trying to garrison a turret from 'inside' the walls.
The issue is that the turret is not accessible via the inside as its
obstruction + garrison range is blocked by the surrounding walls.
However, as introduced by 6e05a00929, TryGoingStraightToTargetEntity
ignores all entities with the obstruction group of the target (the
reason for this being that otherwise it would never succeed, since the
line towards the target would likely go through the target).
For walls and formations, this means ignoring possibly too many
entities, and in the case of #4473, ignoring wall pieces. The unit thus
mistakenly thought it could direct-path to the turret, and got stuck.

To fix this, we can ignore specifically the targeted entity's
obstruction tag. This can be considered a fix to 6e05a00929.

temple accepted an earlier version of this patch (specifically elexis'
version).

Fixes #4473

Based on a patch by: elexis
Differential Revision: https://code.wildfiregames.com/D1424
This was SVN commit r22533.
2019-07-23 06:18:07 +00:00
elexis
b4626359f5 Provide ScriptInterface CreateObject and CreateArray functions to replace Eval calls following 7c2e9027c2, 1c0536bf08 and later.
Differential Revision: https://code.wildfiregames.com/D2080
Previous version reviewed By: Krinkle
Comments By: historic_bruno, wraitii
This was SVN commit r22528.
2019-07-22 19:35:14 +00:00
wraitii
32e8ed51aa UnitMotion - Send messages to UnitAI when obstructed, to allow stopping early when walking and avoiding pathfinding lag.
As reported by #5521, Ordering units to walk to a point in a forest can
lag terribly, as units will end up computing long short paths in the
forest, which can result in `ComputeShortPath` calls that individually
take upwards of 80ms.

This can be alleviated by allowing units to stop a bit earlier. A23
handled this in UnitMotion directly, but it's better to handle this in
UnitAI to avoid surprises and to make it customisable on a per-state
level.

This diff further speeds up using the short pathfinder by starting with
a smaller search range, limiting the max-range more and moving the range
slightly towards the goal.

This also refactors UM sending messages to UnitAI so that we may in the
future push more information (in particular, the entity_id that a unit
was obstructed by could be interesting for COMBAT).

This doesn't fix the possibility of lag, but it reduces its occurrence
to levels that should be similar to A23 and thus acceptable enough.

Tested By: Freagarach
Fixes #5521

Differential Revision: https://code.wildfiregames.com/D2105
This was SVN commit r22526.
2019-07-22 18:07:24 +00:00
wraitii
6fc2114b58 Unit Motion - Improve handling of obstructed paths.
Units right now try going to their next long waypoint using the
short-range pathfinder. This works, but it tends to leads to units
clumping together when shuttling for example.

By switching to short paths earlier, and by scrapping the long waypoints
when doing so, we can make movement more natural until we have unit
pushing.

Some cleanup in how the short-path domain range gets handled, and
increase the max-range by one tile to improve rare cases.

Differential Revision: https://code.wildfiregames.com/D2095
This was SVN commit r22507.
2019-07-18 20:00:38 +00:00
historic_bruno
fc32e28c0a Fixes some ambiguous calls of abs().
Fixes #5515.
Reviewed By: elexis
Differential Revision: https://code.wildfiregames.com/D2091
This was SVN commit r22500.
2019-07-17 22:39:30 +00:00
wraitii
dbebe0a39a Fix max-range approach when treating a target as a circle.
As reported by @bb in #5512, catapults and other big-range units might
not approach targets correctly when trying to get in range.
To be sure that we will be in range of a square obstruction approximated
as a circle, we need to consider the inscribed circle and not the
circumscribed circle.

Reported by: bb
Fixes #5512

Differential Revision: https://code.wildfiregames.com/D2086
This was SVN commit r22495.
2019-07-17 18:08:47 +00:00
wraitii
b43904aae1 Unit Motion - optimisations to avoid recomputing paths too often
Three changes:
- Assume a certain incertain based on distance to the target, to avoid
recompute paths every turn when the target is far way and moving.
- Handle cases where the target is unreachable to the long-range
pathfinder and we would be recomputing every turn.
- If we went straight, assume we don't need to recompute a path.

These together make moving entities recompute paths far less often,
speeding up the game.

Differential Revision: https://code.wildfiregames.com/D2066
This was SVN commit r22474.
2019-07-14 11:08:15 +00:00
wraitii
5c642611c4 Vertex pathfinder - fixes to quadrant optimisation to ensure units don't take detours around obstructions.
Compute the outward quadrants once and for all instead of setting them
dynamically, because there is no reason why we should always arrive from
the same quadrant as the first time we see a vertex.
Don't consider quadrants for the start-vertex, because of the edge
expansion (which can put us in illegal quadrants)

These result in (much) better paths, the tradeoff being that we now look
at some more vertices.

Fixes #5476

Differential Revision: https://code.wildfiregames.com/D1908
This was SVN commit r22473.
2019-07-14 10:19:18 +00:00
wraitii
69f7a48dd9 Fix UB following 57362f7fa3, which could cause a crash when serialising.
Since m_ExpectedPathTicket.m_Type is uninitialised before being used,
serialisation could fail with an out of bouds error. This fixes it by
giving it an (arbitrary) default value.

Reported by: gameboy
Confirmed and debugged by: Angen
Reviewed By: Angen
Differential Revision: https://code.wildfiregames.com/D2074
This was SVN commit r22470.
2019-07-14 09:24:37 +00:00
wraitii
055c848c1a Unit Motion - improve PathResult/Obstructed move handling
Reorder code flow, handle long paths and short paths in a more explicit
manner, and only fail after a certain number of failed path computations
to avoid going idle too easily.

Make sure WALKING orders in UnitAI stop when the move fails to avoid
units being stuck.

Differential Revision: https://code.wildfiregames.com/D1907
This was SVN commit r22464.
2019-07-13 15:53:21 +00:00
elexis
d5a3437882 Unify the magic number indicating the number of impassable tiles at the map edge redundant in the Pathfinder, RangeManager and MapGenerator.
Refs #4034, #4636.
Differential Revision: https://code.wildfiregames.com/D2061
Reviewed By: wraitii
This was SVN commit r22459.
2019-07-12 16:38:51 +00:00
wraitii
dcf5bad7fd Unit motion - Check the return value of ComputeGoal and handle failure cases
As reported by @Freagarach on #5496, there can be broken behaviour as
UnitMotion::PathResult may call RequestLongPath with an uninitialised
path goal when ComputeGoal fails.

To fix this, check the return value everywhere and react accordingly in
case of failure.

Fixes #5496

Differential Revision: https://code.wildfiregames.com/D2063
This was SVN commit r22458.
2019-07-12 16:16:13 +00:00
wraitii
57362f7fa3 UnitMotion - remove m_PathState, which is redundant with other variables.
m_PathState kept 3 pieces of information that can be deduced using other
variables:
 - whether the entity was following a path. This can be better deduced
by checking if the entity has short/long waypoints.
- whether a path is currently being requested. This can be better
deduced by checking the value of m_ExpectedPathTicket
- whether the requested path is long or short. This can be stored
directly alonside the path request ticket number, making it more obvious
why it exists.

With these changes, m_PathState can be removed.

Differential Revision: https://code.wildfiregames.com/D1903
This was SVN commit r22456.
2019-07-12 14:49:32 +00:00