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-rw-r--r--src/control/HandlingDataMgr.cpp242
1 files changed, 241 insertions, 1 deletions
diff --git a/src/control/HandlingDataMgr.cpp b/src/control/HandlingDataMgr.cpp
index 94824358..48000b48 100644
--- a/src/control/HandlingDataMgr.cpp
+++ b/src/control/HandlingDataMgr.cpp
@@ -1,7 +1,247 @@
#include "common.h"
#include "patcher.h"
+#include "main.h"
+#include "FileMgr.h"
#include "HandlingDatamgr.h"
cHandlingDataMgr &mod_HandlingManager = *(cHandlingDataMgr*)0x728060;
-WRAPPER int32 cHandlingDataMgr::GetHandlingId(const char *name){ EAXJMP(0x546B70); }
+char *HandlingFilename = "HANDLING.CFG";
+
+char VehicleNames[NUMHANDLINGS][14] = {
+ "LANDSTAL",
+ "IDAHO",
+ "STINGER",
+ "LINERUN",
+ "PEREN",
+ "SENTINEL",
+ "PATRIOT",
+ "FIRETRUK",
+ "TRASH",
+ "STRETCH",
+ "MANANA",
+ "INFERNUS",
+ "BLISTA",
+ "PONY",
+ "MULE",
+ "CHEETAH",
+ "AMBULAN",
+ "FBICAR",
+ "MOONBEAM",
+ "ESPERANT",
+ "TAXI",
+ "KURUMA",
+ "BOBCAT",
+ "MRWHOOP",
+ "BFINJECT",
+ "POLICE",
+ "ENFORCER",
+ "SECURICA",
+ "BANSHEE",
+ "PREDATOR",
+ "BUS",
+ "RHINO",
+ "BARRACKS",
+ "TRAIN",
+ "HELI",
+ "DODO",
+ "COACH",
+ "CABBIE",
+ "STALLION",
+ "RUMPO",
+ "RCBANDIT",
+ "BELLYUP",
+ "MRWONGS",
+ "MAFIA",
+ "YARDIE",
+ "YAKUZA",
+ "DIABLOS",
+ "COLUMB",
+ "HOODS",
+ "AIRTRAIN",
+ "DEADDODO",
+ "SPEEDER",
+ "REEFER",
+ "PANLANT",
+ "FLATBED",
+ "YANKEE",
+ "BORGNINE"
+};
+
+cHandlingDataMgr::cHandlingDataMgr(void)
+{
+ memset(this, 0, sizeof(this));
+}
+
+void
+cHandlingDataMgr::Initialise(void)
+{
+ LoadHandlingData();
+ field_0 = 0.1f;
+ field_4 = 0.9f;
+ field_8 = 1.0f;
+ field_C = 0.8f;
+ field_10 = 0.98f;
+}
+
+void
+cHandlingDataMgr::LoadHandlingData(void)
+{
+ char *start, *end;
+ char line[201]; // weird value
+ char delim[4]; // not sure
+ char *word;
+ int field, handlingId;
+ int keepGoing;
+ tHandlingData *handling;
+
+ CFileMgr::SetDir("DATA");
+ CFileMgr::LoadFile(HandlingFilename, work_buff, sizeof(work_buff), "r");
+ CFileMgr::SetDir("");
+
+ start = (char*)work_buff;
+ end = start+1;
+ handling = nil;
+ keepGoing = 1;
+
+ while(keepGoing){
+ // 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(strncmp(line, ";the end", 9) == 0)
+ keepGoing = 0;
+ else if(line[0] != ';'){
+ field = 0;
+ strcpy(delim, " \t");
+ // FIX: game seems to use a do-while loop here
+ for(word = strtok(line, delim); word; word = strtok(nil, delim)){
+ switch(field){
+ case 0:
+ handlingId = FindExactWord(word, (const char*)VehicleNames, 14, NUMHANDLINGS);
+ assert(handlingId >= 0 && handlingId < NUMHANDLINGS);
+ handling = &HandlingData[handlingId];
+ handling->nIdentifier = handlingId;
+ break;
+ case 1: handling->fMass = strtod(word, nil); break;
+ case 2: handling->Dimension.x = strtod(word, nil); break;
+ case 3: handling->Dimension.y = strtod(word, nil); break;
+ case 4: handling->Dimension.z = strtod(word, nil); break;
+ case 5: handling->CentreOfMass.x = strtod(word, nil); break;
+ case 6: handling->CentreOfMass.y = strtod(word, nil); break;
+ case 7: handling->CentreOfMass.z = strtod(word, nil); break;
+ case 8: handling->nPercentSubmerged = atoi(word); break;
+ case 9: handling->fTractionMultiplier = strtod(word, nil); break;
+ case 10: handling->fTractionLoss = strtod(word, nil); break;
+ case 11: handling->fTractionBias = strtod(word, nil); break;
+ case 12: handling->TransmissionData.nNumberOfGears = atoi(word); break;
+ case 13: handling->TransmissionData.fMaxVelocity = strtod(word, nil); break;
+ case 14: handling->TransmissionData.fEngineAcceleration = strtod(word, nil) * 0.4f; break;
+ case 15: handling->TransmissionData.nDriveType = word[0]; break;
+ case 16: handling->TransmissionData.nEngineType = word[0]; break;
+ case 17: handling->fBrakeDeceleration = strtod(word, nil); break;
+ case 18: handling->fBrakeBias = strtod(word, nil); break;
+ case 19: handling->bABS = !!atoi(word); break;
+ case 20: handling->fSteeringLock = strtod(word, nil); break;
+ case 21: handling->fSuspensionForceLevel = strtod(word, nil); break;
+ case 22: handling->fSuspensionDampingLevel = strtod(word, nil); break;
+ case 23: handling->fSeatOffsetDistance = strtod(word, nil); break;
+ case 24: handling->fCollisionDamageMultiplier = strtod(word, nil); break;
+ case 25: handling->nMonetaryValue = atoi(word); break;
+ case 26: handling->fSuspensionUpperLimit = strtod(word, nil); break;
+ case 27: handling->fSuspensionLowerLimit = strtod(word, nil); break;
+ case 28: handling->fSuspensionBias = strtod(word, nil); break;
+ case 29:
+ sscanf(word, "%x", &handling->Flags);
+ handling->TransmissionData.Flags = handling->Flags;
+ break;
+ case 30: handling->FrontLights = atoi(word); break;
+ case 31: handling->RearLights = atoi(word); break;
+ }
+ field++;
+ }
+ ConvertDataToGameUnits(handling);
+ }
+ }
+}
+
+int
+cHandlingDataMgr::FindExactWord(const char *word, const char *words, int wordLen, int numWords)
+{
+ int i;
+
+ for(i = 0; i < numWords; i++){
+ // BUG: the game does something really stupid here, it's fixed here
+ if(strncmp(word, words, wordLen) == 0)
+ return i;
+ words += wordLen;
+ }
+ return numWords;
+}
+
+
+void
+cHandlingDataMgr::ConvertDataToGameUnits(tHandlingData *handling)
+{
+ // TODO: figure out what exactly is being converted here
+ float velocity, a, b, specificVolume;
+
+ handling->TransmissionData.fEngineAcceleration /= 2500.0f;
+ handling->TransmissionData.fMaxVelocity /= 180.0f;
+ handling->fBrakeDeceleration /= 2500.0f;
+ 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->fBuoyancy = 100.0f/handling->nPercentSubmerged * 0.008*handling->fMass;
+
+ // What the hell is going on here?
+ specificVolume = handling->Dimension.x*handling->Dimension.z*0.5f / handling->fMass; // ?
+ a = 0.0f;
+ b = 100.0f;
+ velocity = handling->TransmissionData.fMaxVelocity;
+ while(a < b && velocity > 0.0f){
+ velocity -= 0.01;
+ a = handling->TransmissionData.fEngineAcceleration/6.0f;
+ b = -velocity * (1.0f/(specificVolume * sq(velocity) + 1.0f) - 1.0f);
+ }
+
+ if(handling->nIdentifier == HANDLING_RCBANDIT){
+ handling->TransmissionData.fUnkMaxVelocity = handling->TransmissionData.fMaxVelocity;
+ }else{
+ handling->TransmissionData.fUnkMaxVelocity = velocity;
+ handling->TransmissionData.fMaxVelocity = velocity * 1.2f;
+ }
+ handling->TransmissionData.fMaxReverseVelocity = -0.2f;
+
+ if(handling->TransmissionData.nDriveType == '4')
+ handling->TransmissionData.fEngineAcceleration /= 4.0f;
+ else
+ handling->TransmissionData.fEngineAcceleration /= 2.0f;
+
+ handling->TransmissionData.InitGearRatios();
+}
+
+int32
+cHandlingDataMgr::GetHandlingId(const char *name)
+{
+ int i;
+ for(i = 0; i < NUMHANDLINGS; i++)
+ if(strncmp(VehicleNames[i], name, 14) == 0)
+ break;
+ return i;
+}
+
+STARTPATCHES
+ InjectHook(0x546D80, &cHandlingDataMgr::Initialise, PATCH_JUMP);
+ InjectHook(0x546DB0, &cHandlingDataMgr::LoadHandlingData, PATCH_JUMP);
+ InjectHook(0x546BB0, &cHandlingDataMgr::ConvertDataToGameUnits, PATCH_JUMP);
+ InjectHook(0x546AA0, &cHandlingDataMgr::FindExactWord, PATCH_JUMP);
+ InjectHook(0x546B70, &cHandlingDataMgr::GetHandlingId, PATCH_JUMP);
+ENDPATCHES
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-21 02:48:03 +0200