Add basic algorithms for best jumper and rising star

Author: SiekamCebule

jumpers_female.json

@@ -1 +1 @@
-[{"age":35,"name":"Philipp","surname":"Aschenwald","country":"at","sex":1,"skills":{"qualityOnSmallerHills":82.0,"qualityOnLargerHills":72.0,"landingStyle":-1,"jumpsConsistency":-1}},{"age":32,"name":"Daniel","surname":"Huber","country":"at","sex":1,"skills":{"qualityOnSmallerHills":81.24,"qualityOnLargerHills":88.0,"landingStyle":1,"jumpsConsistency":1}},{"age":37,"name":"Kamil","surname":"Stoch","country":"pl","sex":1,"skills":{"qualityOnSmallerHills":82.0,"qualityOnLargerHills":83.0,"landingStyle":3,"jumpsConsistency":2}},{"age":25,"name":"Silje","surname":"Opseth","country":"no","sex":1,"skills":{"qualityOnSmallerHills":87.0,"qualityOnLargerHills":94.0,"landingStyle":0,"jumpsConsistency":0}},{"age":31,"name":"Stefan","surname":"Kraft","country":"at","sex":1,"skills":{"qualityOnSmallerHills":88.0,"qualityOnLargerHills":95.0,"landingStyle":3,"jumpsConsistency":1}},{"age":37,"name":"Dawid","surname":"Kubacki","country":"pl","sex":1,"skills":{"qualityOnSmallerHills":91.25,"qualityOnLargerHills":81.0,"landingStyle":1,"jumpsConsistency":0}}]
+[{"age":35,"name":"Philipp","surname":"Aschenwald","country":"at","sex":1,"skills":{"qualityOnSmallerHills":82.0,"qualityOnLargerHills":72.0,"landingStyle":-1,"jumpsConsistency":-1}},{"age":32,"name":"Daniel","surname":"Huber","country":"at","sex":1,"skills":{"qualityOnSmallerHills":81.24,"qualityOnLargerHills":88.0,"landingStyle":1,"jumpsConsistency":1}},{"age":22,"name":"Kamil","surname":"Stoch","country":"pl","sex":1,"skills":{"qualityOnSmallerHills":82.0,"qualityOnLargerHills":83.0,"landingStyle":3,"jumpsConsistency":2}},{"age":14,"name":"Stefan","surname":"Kraft","country":"at","sex":1,"skills":{"qualityOnSmallerHills":88.0,"qualityOnLargerHills":95.0,"landingStyle":3,"jumpsConsistency":1}},{"age":21,"name":"Dawid","surname":"Kubacki","country":"pl","sex":1,"skills":{"qualityOnSmallerHills":91.25,"qualityOnLargerHills":81.0,"landingStyle":1,"jumpsConsistency":0}}]

lib/ui/screens/main_screen/large/simulation_wizard/simulation_wizard_dialog.dart

@@ -19,7 +19,6 @@ import 'package:sj_manager/models/db/team/country_team.dart';
 import 'package:sj_manager/models/simulations/enums.dart';
 import 'package:sj_manager/models/simulations/simulation_wizard_options_repo.dart';
 import 'package:sj_manager/models/db/team/team.dart';
-import 'package:sj_manager/repositories/generic/db_items_json_configuration.dart';
 import 'package:sj_manager/ui/reusable_widgets/countries/country_flag.dart';
 import 'package:sj_manager/ui/screens/main_screen/large/simulation_wizard/widgets/country_screen/country_title.dart';
 import 'package:sj_manager/ui/screens/main_screen/large/simulation_wizard/widgets/country_screen/preview_stat_texts.dart';

lib/utils/team_preview_creator.dart

@@ -1,11 +1,13 @@
 import 'package:sj_manager/models/db/hill/hill.dart';
 import 'package:sj_manager/models/db/jumper/jumper.dart';
+import 'package:sj_manager/models/db/jumper/jumps_consistency.dart';
+import 'package:sj_manager/models/db/jumper/landing_style.dart';
 import 'package:sj_manager/models/db/jumps/simple_jump.dart';
 import 'package:sj_manager/models/db/local_db_repo.dart';
+import 'package:sj_manager/models/db/sex.dart';
 import 'package:sj_manager/models/db/team/country_team.dart';
 import 'package:sj_manager/models/db/team/team.dart';
 import 'package:sj_manager/utils/db_items.dart';
-import 'package:sj_manager/utils/iterable_random_access.dart';
 
 abstract class TeamPreviewCreator<T extends Team> {
   const TeamPreviewCreator();
@@ -45,17 +47,65 @@ class DefaultCountryTeamPreviewCreator extends TeamPreviewCreator<CountryTeam> {
 
   @override
   Jumper? bestJumper(CountryTeam team) {
-    // TODO: Some algorithm
-    final fromCountry = database.maleJumpers.last.fromCountryByCode(team.country.code);
-    if (fromCountry.isEmpty) return null;
-    return fromCountry.randomElement();
+    final jumpers =
+        team.sex == Sex.male ? database.maleJumpers.last : database.femaleJumpers.last;
+    final jumpersFromCountry = jumpers.fromCountryByCode(team.country.code);
+    if (jumpersFromCountry.isEmpty) return null;
+    final jumperRatings = {
+      for (var jumper in jumpersFromCountry) jumper: _calculateRating(jumper),
+    };
+    return _bestJumper(jumperRatings);
   }
 
   @override
   Jumper? risingStar(CountryTeam team) {
-    // TODO: Some algorithm
-    final fromCountry = database.maleJumpers.last.fromCountryByCode(team.country.code);
-    if (fromCountry.isEmpty) return null;
-    return fromCountry.first;
+    final jumpers =
+        team.sex == Sex.male ? database.maleJumpers.last : database.femaleJumpers.last;
+    final jumpersFromCountry = jumpers.fromCountryByCode(team.country.code);
+    if (jumpersFromCountry.isEmpty) return null;
+    final jumperRatings = {
+      for (var jumper in jumpersFromCountry)
+        jumper: _calculateRatingForRisingStar(jumper),
+    };
+    return _bestJumper(jumperRatings);
+  }
+
+  double _calculateRatingForRisingStar(Jumper jumper) {
+    final base = _calculateRating(jumper);
+    final age = jumper.age;
+    const k = 27;
+    final multiplierByAge = (age == 17) ? 1.0 : (1.0 / (1.0 + (age - 18).abs() / k));
+    print('multiplier by age ($age): $multiplierByAge');
+    return base * multiplierByAge;
+  }
+
+  double _calculateRating(Jumper jumper) {
+    final skills = jumper.skills;
+    final byQualityOnSmallerHills = skills.qualityOnSmallerHills * 1.0;
+    final byQualityOnLargerHills = skills.qualityOnLargerHills * 1.0;
+    final multiplierByConsistency = switch (skills.jumpsConsistency) {
+      JumpsConsistency.veryConsistent => 1.08,
+      JumpsConsistency.consistent => 1.04,
+      JumpsConsistency.average => 1.0,
+      JumpsConsistency.inconsistent => 0.96,
+      JumpsConsistency.veryInconsistent => 0.92,
+    };
+    final multiplierByLandingStyle = switch (skills.landingStyle) {
+      LandingStyle.perfect => 1.06,
+      LandingStyle.veryGraceful => 1.04,
+      LandingStyle.graceful => 1.02,
+      LandingStyle.average => 1.00,
+      LandingStyle.ugly => 0.98,
+      LandingStyle.veryUgly => 0.96,
+      LandingStyle.terrible => 0.94,
+    };
+    final rating = (byQualityOnSmallerHills + byQualityOnLargerHills) *
+        multiplierByConsistency *
+        multiplierByLandingStyle;
+    return rating;
+  }
+
+  Jumper _bestJumper(Map<Jumper, double> jumperRatings) {
+    return jumperRatings.entries.reduce((a, b) => a.value > b.value ? a : b).key;
   }
 }