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Improve splash damage falloff calculation to account somewhat for obstruction size
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Authored by wraitii on Aug 17 2020, 12:32 PM.

Details

Summary

As noted in D2759, splash calculates falloff based on centre-to-point distance, which is somewhat incorrect -> it ought to use nearest-edge-to-point distance.

This:

  • cleans up GetUnitSize for just GetSize (unrelated in this iteration of the patch but I noticed it while working on this)
  • Uses DistanceToPoint to calculate an exact distance for falloff
  • Makes sure the damage multiplier cannot be below 0.

The change to DistanceToPoint might be controversial - it's certainly slower, but for buildings it's required.

Test Plan

Check that the new maths is correct and agree that this new behaviour is preferable.

Event Timeline

wraitii created this revision.Aug 17 2020, 12:32 PM
wraitii updated this revision to Diff 13219.Aug 17 2020, 12:32 PM

Update to the good diff.

Successful build - Chance fights ever on the side of the prudent.

builderr-debug-macos.txt
../../../source/simulation2/scripting/JSInterface_Simulation.cpp:154:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CFixedVector2D(-halfSize.X, -halfSize.Y),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/graphics/tests/test_Camera.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/graphics/tests/test_Camera.h:168:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CVector3D(-101.0f, -101.0f, 101.0f),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/simulation2/tests/test_SerializeTemplates.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/simulation2/tests/test_SerializeTemplates.h:39:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        3, 0, 1, 4, 1, 5
                        ^~~~~~~~~~~~~~~~
                        {               }
1 warning generated.
builderr-release-macos.txt
../../../source/simulation2/scripting/JSInterface_Simulation.cpp:154:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CFixedVector2D(-halfSize.X, -halfSize.Y),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libsimulation2.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libgraphics.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libatlas.a(precompiled.o) has no symbols
In file included from ../../../source/graphics/tests/test_Camera.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/graphics/tests/test_Camera.h:168:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CVector3D(-101.0f, -101.0f, 101.0f),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/simulation2/tests/test_SerializeTemplates.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/simulation2/tests/test_SerializeTemplates.h:39:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        3, 0, 1, 4, 1, 5
                        ^~~~~~~~~~~~~~~~
                        {               }
1 warning generated.

Link to build: https://jenkins.wildfiregames.com/job/macos-differential/1358/display/redirect

Successful build - Chance fights ever on the side of the prudent.

builderr-debug-macos.txt
../../../source/simulation2/scripting/JSInterface_Simulation.cpp:154:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CFixedVector2D(-halfSize.X, -halfSize.Y),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/graphics/tests/test_Camera.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/graphics/tests/test_Camera.h:168:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CVector3D(-101.0f, -101.0f, 101.0f),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/simulation2/tests/test_SerializeTemplates.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/simulation2/tests/test_SerializeTemplates.h:39:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        3, 0, 1, 4, 1, 5
                        ^~~~~~~~~~~~~~~~
                        {               }
1 warning generated.
builderr-release-macos.txt
../../../source/simulation2/scripting/JSInterface_Simulation.cpp:154:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CFixedVector2D(-halfSize.X, -halfSize.Y),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libsimulation2.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libgraphics.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libatlas.a(precompiled.o) has no symbols
In file included from ../../../source/graphics/tests/test_Camera.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/graphics/tests/test_Camera.h:168:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CVector3D(-101.0f, -101.0f, 101.0f),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/simulation2/tests/test_SerializeTemplates.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/simulation2/tests/test_SerializeTemplates.h:39:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        3, 0, 1, 4, 1, 5
                        ^~~~~~~~~~~~~~~~
                        {               }
1 warning generated.

Link to build: https://jenkins.wildfiregames.com/job/macos-differential/1359/display/redirect

wraitii requested review of this revision.Aug 17 2020, 1:04 PM
bb accepted this revision.Aug 25 2020, 1:55 PM

Good use of those range functions imo.

Some small stuffs, otherwise good to go:

./source/simulation2/components/tests/test_ObstructionManager.h has a GetUnitRadius reference. Straightforward nuke

binaries/data/mods/public/simulation/components/Trader.js
301

could add spaces while at it

binaries/data/mods/public/simulation/components/tests/test_Builder.js
80

can nuke a .0 while at it

binaries/data/mods/public/simulation/components/tests/test_Damage.js
201

Make the linter happy, by quoting the object keys

203

weird that the linter doesn't complain about trailing comma's

297

Please some linter

binaries/data/mods/public/simulation/helpers/Attacking.js
333

I believe this reason not to be accurate. The reason it can become negative is the rangemanager returning to many to far away entities (due to square/circular shape mismatch)

This revision is now accepted and ready to land.Aug 25 2020, 1:55 PM
wraitii added inline comments.Aug 27 2020, 9:38 AM
binaries/data/mods/public/simulation/helpers/Attacking.js
333

Mh, that's kind of what I meant here. I'll clarify.

wraitii updated this revision to Diff 13351.Aug 31 2020, 11:19 AM

@bb's comments + Rebased.

Will commit once lights are green.

Successful build - Chance fights ever on the side of the prudent.

builderr-debug-macos.txt
../../../source/simulation2/scripting/JSInterface_Simulation.cpp:155:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CFixedVector2D(-halfSize.X, -halfSize.Y),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/graphics/tests/test_Camera.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/graphics/tests/test_Camera.h:168:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CVector3D(-101.0f, -101.0f, 101.0f),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/simulation2/tests/test_SerializeTemplates.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/simulation2/tests/test_SerializeTemplates.h:39:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        3, 0, 1, 4, 1, 5
                        ^~~~~~~~~~~~~~~~
                        {               }
1 warning generated.
builderr-release-macos.txt
../../../source/simulation2/scripting/JSInterface_Simulation.cpp:155:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CFixedVector2D(-halfSize.X, -halfSize.Y),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libsimulation2.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libgraphics.a(precompiled.o) has no symbols
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../../../binaries/system/libatlas.a(precompiled.o) has no symbols
In file included from ../../../source/graphics/tests/test_Camera.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/graphics/tests/test_Camera.h:168:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        CVector3D(-101.0f, -101.0f, 101.0f),
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
In file included from ../../../source/simulation2/tests/test_SerializeTemplates.cpp:17:
/Users/wfg/Jenkins/workspace/macos-differential/source/simulation2/tests/test_SerializeTemplates.h:39:4: warning: suggest braces around initialization of subobject [-Wmissing-braces]
                        3, 0, 1, 4, 1, 5
                        ^~~~~~~~~~~~~~~~
                        {               }
1 warning generated.

Link to build: https://jenkins.wildfiregames.com/job/macos-differential/1446/display/redirect