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#include "common.h"
#include "patcher.h"
#include "Bridge.h"
#include "Pools.h"
#include "ModelIndices.h"
#include "PathFind.h"
#include "Stats.h"
CEntity*& CBridge::pLiftRoad = *(CEntity**)0x8E2C8C;
CEntity*& CBridge::pLiftPart = *(CEntity**)0x8E2C94;
CEntity*& CBridge::pWeight = *(CEntity**)0x8E28BC;
int& CBridge::State = *(int*)0x8F2A1C;
int& CBridge::OldState = *(int*)0x8F2A20;
float& CBridge::DefaultZLiftPart = *(float*)0x941430;
float& CBridge::DefaultZLiftRoad = *(float*)0x941438;
float& CBridge::DefaultZLiftWeight = *(float*)0x8F1A44;
float& CBridge::OldLift = *(float*)0x8F6254;
uint32& CBridge::TimeOfBridgeBecomingOperational = *(uint32*)0x8F2BC0;
void CBridge::Init()
{
FindBridgeEntities();
OldLift = -1.0;
if (pLiftPart && pWeight)
{
DefaultZLiftPart = pLiftPart->GetPosition().z;
DefaultZLiftWeight = pWeight->GetPosition().z;
if (pLiftRoad)
DefaultZLiftRoad = pLiftRoad->GetPosition().z;
ThePaths.SetLinksBridgeLights(-330.0, -230.0, -700.0, -588.0, true);
}
}
void CBridge::Update()
{
if (!pLiftPart || !pWeight)
return;
OldState = State;
float liftHeight;
// Set bridge height and state
if (CStats::CommercialPassed)
{
if (TimeOfBridgeBecomingOperational == 0)
TimeOfBridgeBecomingOperational = CTimer::GetTimeInMilliseconds();
// Time remaining for bridge to become operational
// uint16, so after about a minute it overflows to 0 and the cycle repeats
uint16 timeElapsed = CTimer::GetTimeInMilliseconds() - TimeOfBridgeBecomingOperational;
// Calculate lift part height and bridge state
if (timeElapsed < 10000)
{
State = STATE_LIFT_PART_MOVING_DOWN;
liftHeight = 25.0 - timeElapsed / 10000.0 * 25.0;
}
else if (timeElapsed < 40000)
{
liftHeight = 0.0;
State = STATE_LIFT_PART_IS_DOWN;
}
else if (timeElapsed < 50000)
{
liftHeight = 0.0;
State = STATE_LIFT_PART_ABOUT_TO_MOVE_UP;
}
else if (timeElapsed < 60000)
{
State = STATE_LIFT_PART_MOVING_UP;
liftHeight = (timeElapsed - 50000) / 10000.0 * 25.0;
}
else
{
liftHeight = 25.0;
State = STATE_LIFT_PART_IS_UP;
}
}
else
{
liftHeight = 25.0;
TimeOfBridgeBecomingOperational = 0;
State = STATE_BRIDGE_LOCKED;
}
// Move bridge part
if (liftHeight != OldLift)
{
pLiftPart->GetPosition().z = DefaultZLiftPart + liftHeight;
pLiftPart->GetMatrix().UpdateRW();
pLiftPart->UpdateRwFrame();
if (pLiftRoad)
{
pLiftRoad->GetPosition().z = DefaultZLiftRoad + liftHeight;
pLiftRoad->GetMatrix().UpdateRW();
pLiftRoad->UpdateRwFrame();
}
pWeight->GetPosition().z = DefaultZLiftWeight - liftHeight;
pWeight->GetMatrix().UpdateRW();
pWeight->UpdateRwFrame();
OldLift = liftHeight;
}
if (State == STATE_LIFT_PART_ABOUT_TO_MOVE_UP && OldState == STATE_LIFT_PART_IS_DOWN)
ThePaths.SetLinksBridgeLights(-330.0, -230.0, -700.0, -588.0, true);
else if (State == STATE_LIFT_PART_IS_DOWN && OldState == STATE_LIFT_PART_MOVING_DOWN)
ThePaths.SetLinksBridgeLights(-330.0, -230.0, -700.0, -588.0, false);
}
bool CBridge::ShouldLightsBeFlashing() { return State != STATE_LIFT_PART_IS_DOWN; }
void CBridge::FindBridgeEntities()
{
pWeight = nil;
pLiftRoad = nil;
pLiftPart = nil;
for (int i = CPools::GetBuildingPool()->GetSize()-1; i >= 0; i--) {
CBuilding* entry = CPools::GetBuildingPool()->GetSlot(i);
if (entry)
{
if (entry->GetModelIndex() == MI_BRIDGELIFT)
pLiftPart = entry;
else if (entry->GetModelIndex() == MI_BRIDGEROADSEGMENT)
pLiftRoad = entry;
else if (entry->GetModelIndex() == MI_BRIDGEWEIGHT)
pWeight = entry;
}
}
}
bool CBridge::ThisIsABridgeObjectMovingUp(int index)
{
if (index != MI_BRIDGEROADSEGMENT && index != MI_BRIDGELIFT)
return false;
return State == STATE_LIFT_PART_ABOUT_TO_MOVE_UP || State == STATE_LIFT_PART_MOVING_UP;
}
STARTPATCHES
InjectHook(0x413A30, &CBridge::Init, PATCH_JUMP);
InjectHook(0x413AC0, &CBridge::Update, PATCH_JUMP);
InjectHook(0x413D10, &CBridge::ShouldLightsBeFlashing, PATCH_JUMP);
InjectHook(0x413D20, &CBridge::FindBridgeEntities, PATCH_JUMP);
InjectHook(0x413DE0, &CBridge::ThisIsABridgeObjectMovingUp, PATCH_JUMP);
ENDPATCHES
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