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-rw-r--r--src/vehicles/HandlingMgr.cpp83
1 files changed, 41 insertions, 42 deletions
diff --git a/src/vehicles/HandlingMgr.cpp b/src/vehicles/HandlingMgr.cpp
index 040b6972..1a8d059c 100644
--- a/src/vehicles/HandlingMgr.cpp
+++ b/src/vehicles/HandlingMgr.cpp
@@ -115,18 +115,17 @@ void
cHandlingDataMgr::LoadHandlingData(void)
{
char *start, *end;
- char line[201]; // weird value
+ char line[300];
char delim[4]; // not sure
char *word;
int field, handlingId;
- int keepGoing;
tHandlingData *handling;
tFlyingHandlingData *flyingHandling;
tBoatHandlingData *boatHandling;
tBikeHandlingData *bikeHandling;
CFileMgr::SetDir("DATA");
- CFileMgr::LoadFile(HandlingFilename, work_buff, sizeof(work_buff), "r");
+ ssize_t filesz = CFileMgr::LoadFile(HandlingFilename, work_buff, sizeof(work_buff), "r");
CFileMgr::SetDir("");
start = (char*)work_buff;
@@ -135,21 +134,18 @@ cHandlingDataMgr::LoadHandlingData(void)
flyingHandling = nil;
boatHandling = nil;
bikeHandling = nil;
- keepGoing = 1;
- while(keepGoing){
+ while(start < (char*)&work_buff[filesz]){
// find end of line
while(*end != '\n') end++;
// get line
strncpy(line, start, end - start);
line[end - start] = '\0';
- start = end+1;
- end = start+1;
// yeah, this is kinda crappy
if(strcmp(line, ";the end") == 0)
- keepGoing = 0;
+ break;
else if(line[0] != ';'){
if(line[0] == '!'){
// Bike data
@@ -263,19 +259,19 @@ cHandlingDataMgr::LoadHandlingData(void)
handling->nIdentifier = (tVehicleType)handlingId;
break;
case 1: handling->fMass = atof(word); break;
- case 2: handling->Dimension.x = atof(word); break;
- case 3: handling->Dimension.y = atof(word); break;
- case 4: handling->Dimension.z = atof(word); break;
- case 5: handling->CentreOfMass.x = atof(word); break;
- case 6: handling->CentreOfMass.y = atof(word); break;
- case 7: handling->CentreOfMass.z = atof(word); break;
- case 8: handling->nPercentSubmerged = atoi(word); break;
- case 9: handling->fTractionMultiplier = atof(word); break;
- case 10: handling->fTractionLoss = atof(word); break;
- case 11: handling->fTractionBias = atof(word); break;
- case 12: handling->Transmission.nNumberOfGears = atoi(word); break;
- case 13: handling->Transmission.fMaxVelocity = atof(word); break;
- case 14: handling->Transmission.fEngineAcceleration = atof(word) * 0.4; break;
+ case 2: handling->fTurnMass = atof(word); break;
+ case 3: handling->fDragMult = atof(word); break;
+ case 4: handling->CentreOfMass.x = atof(word); break;
+ case 5: handling->CentreOfMass.y = atof(word); break;
+ case 6: handling->CentreOfMass.z = atof(word); break;
+ case 7: handling->nPercentSubmerged = atoi(word); break;
+ case 8: handling->fTractionMultiplier = atof(word); break;
+ case 9: handling->fTractionLoss = atof(word); break;
+ case 10: handling->fTractionBias = atof(word); break;
+ case 11: handling->Transmission.nNumberOfGears = atoi(word); break;
+ case 12: handling->Transmission.fMaxVelocity = atof(word); break;
+ case 13: handling->Transmission.fEngineAcceleration = atof(word) * 0.4; break;
+ case 14: handling->Transmission.fEngineInertia = atof(word); break;
case 15: handling->Transmission.nDriveType = word[0]; break;
case 16: handling->Transmission.nEngineType = word[0]; break;
case 17: handling->fBrakeDeceleration = atof(word); break;
@@ -284,25 +280,28 @@ cHandlingDataMgr::LoadHandlingData(void)
case 20: handling->fSteeringLock = atof(word); break;
case 21: handling->fSuspensionForceLevel = atof(word); break;
case 22: handling->fSuspensionDampingLevel = atof(word); break;
- case 23: handling->fSeatOffsetDistance = atof(word); break;
- case 24: handling->fCollisionDamageMultiplier = atof(word); break;
- case 25: handling->nMonetaryValue = atoi(word); break;
- case 26: handling->fSuspensionUpperLimit = atof(word); break;
- case 27: handling->fSuspensionLowerLimit = atof(word); break;
- case 28: handling->fSuspensionBias = atof(word); break;
- case 29: handling->fSuspensionAntidiveMultiplier = atof(word); break;
- case 30:
+ // case 23: // fSuspensionHighSpdComDamp unused
+ case 24: handling->fSuspensionUpperLimit = atof(word); break;
+ case 25: handling->fSuspensionLowerLimit = atof(word); break;
+ case 26: handling->fSuspensionBias = atof(word); break;
+ case 27: handling->fSuspensionAntidiveMultiplier = atof(word); break;
+ case 28: handling->fSeatOffsetDistance = atof(word); break;
+ case 29: handling->fCollisionDamageMultiplier = atof(word); break;
+ case 30: handling->nMonetaryValue = atoi(word); break;
+ case 31:
sscanf(word, "%x", &handling->Flags);
- handling->Transmission.Flags = handling->Flags;
+ // handling->Transmission.Flags = handling->Flags;
break;
- case 31: handling->FrontLights = atoi(word); break;
- case 32: handling->RearLights = atoi(word); break;
+ case 32: handling->FrontLights = atoi(word); break;
+ case 33: handling->RearLights = atoi(word); break;
}
field++;
}
ConvertDataToGameUnits(handling);
}
}
+ start = end+1;
+ end = start+1;
}
}
@@ -330,12 +329,9 @@ cHandlingDataMgr::ConvertDataToGameUnits(tHandlingData *handling)
handling->Transmission.fEngineAcceleration *= 1.0f/(50.0f*50.0f);
handling->Transmission.fMaxVelocity *= 1000.0f/(60.0f*60.0f * 50.0f);
handling->fBrakeDeceleration *= 1.0f/(50.0f*50.0f);
- handling->fTurnMass = (sq(handling->Dimension.x) + sq(handling->Dimension.y)) * handling->fMass / 12.0f;
- if(handling->fTurnMass < 10.0f)
- handling->fTurnMass *= 5.0f;
- handling->fInvMass = 1.0f/handling->fMass;
- handling->fCollisionDamageMultiplier *= 2000.0f/handling->fMass;
- handling->fBuoyancy = 100.0f/handling->nPercentSubmerged * GRAVITY*handling->fMass;
+ handling->fInvMass = 1.0f/handling->GetMass();
+ handling->fCollisionDamageMultiplier = handling->GetCollisionDamageMultiplier() * 2000.0f/handling->GetMass();
+ handling->fBuoyancy = 100.0f/handling->nPercentSubmerged * GRAVITY*handling->GetMass();
// Don't quite understand this. What seems to be going on is that
// we calculate a drag (air resistance) deceleration for a given velocity and
@@ -348,10 +344,13 @@ cHandlingDataMgr::ConvertDataToGameUnits(tHandlingData *handling)
velocity -= 0.01f;
// what's the 1/6?
a = handling->Transmission.fEngineAcceleration/6.0f;
- // no density or drag coefficient here...
- float a_drag = 0.5f*SQR(velocity) * handling->Dimension.x*handling->Dimension.z / handling->fMass;
- // can't make sense of this... maybe v - v/(drag + 1) ? but that doesn't make so much sense either
- b = -velocity * (1.0f/(a_drag + 1.0f) - 1.0f);
+ // no idea what's happening here
+ float drag;
+ if(handling->fDragMult < 0.01f)
+ drag = 1.0f - 1.0f/(SQR(velocity)*handling->fDragMult + 1.0f);
+ else
+ drag = 0.0005f*handling->fDragMult * velocity;
+ b = velocity * drag;
}
if(handling->nIdentifier == HANDLING_RCBANDIT){
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-31 08:10:55 +0200