diff options
Diffstat (limited to 'Northstar.CustomServers/scripts/vscripts/gamemodes/_frontline.gnut')
| -rw-r--r-- | Northstar.CustomServers/scripts/vscripts/gamemodes/_frontline.gnut | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/Northstar.CustomServers/scripts/vscripts/gamemodes/_frontline.gnut b/Northstar.CustomServers/scripts/vscripts/gamemodes/_frontline.gnut new file mode 100644 index 00000000..7ece7dc1 --- /dev/null +++ b/Northstar.CustomServers/scripts/vscripts/gamemodes/_frontline.gnut @@ -0,0 +1,159 @@ +untyped + + +global function GetFrontline +global function SetFrontline +global function AddCalculateFrontlineCallback + +const DEBUG_FRONTLINE = false + +global struct Frontline +{ + vector origin = Vector( 0.0, 0.0, 0.0 ) + vector combatDir = Vector( 0.0, 0.0, 0.0 ) + vector line = Vector( 0.0, 0.0, 0.0 ) + vector friendlyCenter = Vector( 0.0, 0.0, 0.0 ) + vector enemyCenter = Vector( 0.0, 0.0, 0.0 ) + float lastCalcTime = -1.0 +} + +struct +{ + Frontline frontline + array<void functionref()> calculateFrontlineCallbacks +} file + +Frontline function GetFrontline( team ) +{ + if ( file.frontline.lastCalcTime < Time() ) + { + CalculateFrontline() + file.frontline.lastCalcTime = Time() + } + + Frontline fl + fl = clone file.frontline + + if ( team == TEAM_MILITIA ) + { + fl.combatDir *= -1.0 + vector temp = fl.friendlyCenter + fl.friendlyCenter = fl.enemyCenter + fl.enemyCenter = temp + } + + return fl +} + +void function AddCalculateFrontlineCallback( void functionref() callbackFunc ) +{ + // Check if this function has already been added + #if DEV + foreach ( func in file.calculateFrontlineCallbacks ) + { + Assert( func != callbackFunc ) + } + #endif + + file.calculateFrontlineCallbacks.append( callbackFunc ) +} + +void function CalculateFrontline() +{ + #if DEV + float debugTime = 0.2 + #endif + + if ( file.calculateFrontlineCallbacks.len() > 0 ) + { + foreach ( callbackFunc in file.calculateFrontlineCallbacks ) + { + callbackFunc() + } + } + else + { + vector militiaCenter = CalculateWeightedTeamCenter( TEAM_MILITIA ) + vector imcCenter = CalculateWeightedTeamCenter( TEAM_IMC ) + + file.frontline.friendlyCenter = imcCenter // friendlyCenter is for TEAM_IMC by default + file.frontline.enemyCenter = militiaCenter + + file.frontline.origin = ( militiaCenter + imcCenter ) * 0.5 + file.frontline.combatDir = Normalize( militiaCenter - imcCenter ) // combatDir is for TEAM_IMC by default + file.frontline.line = CrossProduct( file.frontline.combatDir, Vector( 0.0, 0.0, 1.0 ) ) + + #if DEV + if ( DEBUG_FRONTLINE ) + { + DrawBox( militiaCenter, Vector( -8.0, -8.0, -8.0 ), Vector( 8.0, 8.0, 8.0 ), 255, 102, 0, true, debugTime ) + DrawBox( imcCenter, Vector( -8.0, -8.0, -8.0 ), Vector( 8.0, 8.0, 8.0 ), 0, 0, 255, true, debugTime ) + DebugDrawLine( militiaCenter, imcCenter, 0, 255, 0, true, debugTime ) + } + #endif + } + + #if DEV + if ( DEBUG_FRONTLINE ) + { + DrawBox( file.frontline.origin, Vector( -32.0, -32.0, -32.0 ), Vector( 32.0, 32.0, 32.0 ), 255, 0, 0, true, debugTime ) + DebugDrawLine( file.frontline.origin - file.frontline.line * 500.0, file.frontline.origin + file.frontline.line * 500.0, 255, 0, 0, true, debugTime ) + } + #endif +} + +void function SetFrontline( vector origin, vector combatDir ) +{ + file.frontline.origin = origin + file.frontline.combatDir = combatDir + file.frontline.line = CrossProduct( file.frontline.combatDir, Vector( 0.0, 0.0, 1.0 ) ) +} + +vector function CalculateWeightedTeamCenter( int team ) +{ + array<entity> teamPlayers = GetPlayerArrayOfTeam_Alive( team ) + int teamPlayersCount = teamPlayers.len() + + if ( teamPlayersCount == 0 ) + return Vector( 0.0, 0.0, 0.0 ) + + // find minimum distances between teammates + array<float> minTeammateDistances// = arrayofsize( teamPlayersCount, 99999.0 ) + minTeammateDistances.resize( teamPlayersCount, 99999.0 ) + + for ( int i = 0; i < teamPlayersCount; i++ ) + { + entity playerI = teamPlayers[ i ] + + for ( int j = i + 1; j < teamPlayersCount; j++ ) + { + entity playerJ = teamPlayers[ j ] + float distanceBetweenPlayers = Distance( playerI.GetOrigin(), playerJ.GetOrigin() ) + + if ( distanceBetweenPlayers < minTeammateDistances[ i ] ) + minTeammateDistances[ i ] = distanceBetweenPlayers + + if ( distanceBetweenPlayers < minTeammateDistances[ j ] ) + minTeammateDistances[ j ] = distanceBetweenPlayers + } + } + + vector weightedOrgSum = Vector( 0.0, 0.0, 0.0 ) + float weightSum = 0.0 + float weight = 0.0 + float halfPi = 1.57 // passing a fraction of this value into sin which gives us the first part of a sin wave from 0 - 1 + float maxPossibleDistance = MAX_WORLD_RANGE + float magicNumber = 14.0 // magic number gives the desired falloff + + // calculate a weighted origin based on how close players are to teammates + foreach ( index, player in teamPlayers ) + { + float radians = halfPi * ( minTeammateDistances[ index ] / maxPossibleDistance ) // radians will be a value between 0 - halfPi + weight = pow( ( 1.0 - sin( radians ) ), magicNumber ) // pow squashes the result so the curve has the falloff that's desired + + weightedOrgSum += player.GetOrigin() * weight + weightSum += weight + } + + return weightedOrgSum / weightSum +}
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