re3/src/vehicles/DamageManager.cpp

#include "common.h"
#include "patcher.h"
#include "General.h"
#include "Vehicle.h"
#include "DamageManager.h"


float G_aComponentDamage[] = { 2.5f, 1.25f, 3.2f, 1.4f, 2.5f, 2.8f, 0.5f };

CDamageManager::CDamageManager(void)
{
	ResetDamageStatus();
	m_fWheelDamageEffect = 0.75f;
	field_24 = 1;
}

void
CDamageManager::ResetDamageStatus(void)
{
	memset(this, 0, sizeof(*this));
}

void
CDamageManager::FuckCarCompletely(void)
{
	int i;

	m_wheelStatus[0] = WHEEL_STATUS_MISSING;
	// wheels 1-3 not reset?

	m_doorStatus[0] = DOOR_STATUS_MISSING;
	m_doorStatus[1] = DOOR_STATUS_MISSING;
	m_doorStatus[2] = DOOR_STATUS_MISSING;
	m_doorStatus[3] = DOOR_STATUS_MISSING;
	m_doorStatus[4] = DOOR_STATUS_MISSING;
	m_doorStatus[5] = DOOR_STATUS_MISSING;

	for(i = 0; i < 3; i++){
#ifdef FIX_BUGS
		ProgressPanelDamage(VEHBUMPER_FRONT);
		ProgressPanelDamage(VEHBUMPER_REAR);
#else
		// this can't be right
		ProgressPanelDamage(COMPONENT_BUMPER_FRONT);
		ProgressPanelDamage(COMPONENT_BUMPER_REAR);
#endif
	}
	// Why set to no damage?
	m_lightStatus = 0;
	m_panelStatus = 0;
	SetEngineStatus(250);
}

bool
CDamageManager::ApplyDamage(tComponent component, float damage, float unused)
{
	tComponentGroup group;
	uint8 subComp;

	GetComponentGroup(component, &group, &subComp);
	damage *= G_aComponentDamage[group];
	if(damage > 150.0f){
		switch(group){
		case COMPGROUP_WHEEL:
			ProgressWheelDamage(subComp);
			break;
		case COMPGROUP_DOOR:
		case COMPGROUP_BOOT:
			ProgressDoorDamage(subComp);
			break;
		case COMPGROUP_BONNET:
			if(damage > 220.0f)
				ProgressEngineDamage();
			ProgressDoorDamage(subComp);
			break;
		case COMPGROUP_PANEL:
			// so windscreen is a light?
			SetLightStatus((eLights)subComp, 1);
			// fall through
		case COMPGROUP_BUMPER:
			if(damage > 220.0f &&
			   (component == COMPONENT_PANEL_FRONT_LEFT ||
			    component == COMPONENT_PANEL_FRONT_RIGHT ||
			    component == COMPONENT_PANEL_WINDSCREEN))
				ProgressEngineDamage();
			ProgressPanelDamage(subComp);
			break;
		}
		return true;
	}
	return false;
}

bool
CDamageManager::GetComponentGroup(tComponent component, tComponentGroup *componentGroup, uint8 *subComp)
{
	*subComp = -2;	// ??

	// This is done very strangely in the game, maybe an optimized switch?
	if(component >= COMPONENT_PANEL_FRONT_LEFT){
		if(component >= COMPONENT_BUMPER_FRONT)
			*componentGroup = COMPGROUP_BUMPER;
		else
			*componentGroup = COMPGROUP_PANEL;
		*subComp = component - COMPONENT_PANEL_FRONT_LEFT;
		return true;
	}else if(component >= COMPONENT_DOOR_BONNET){
		if(component == COMPONENT_DOOR_BONNET)
			*componentGroup = COMPGROUP_BONNET;
		else if(component == COMPONENT_DOOR_BOOT)
			*componentGroup = COMPGROUP_BOOT;
		else
			*componentGroup = COMPGROUP_DOOR;
		*subComp = component - COMPONENT_DOOR_BONNET;
		return true;
	}else if(component >= COMPONENT_WHEEL_FRONT_LEFT){
		*componentGroup = COMPGROUP_WHEEL;
		*subComp = component - COMPONENT_WHEEL_FRONT_LEFT;
		return true;
	}else if(component >= COMPONENT_DEFAULT){
		*componentGroup = COMPGROUP_DEFAULT;
		*subComp = component - COMPONENT_DEFAULT;
		return true;
	}else
		return false;
}

void
CDamageManager::SetDoorStatus(int32 door, uint32 status)
{
	m_doorStatus[door] = status;
}

int32
CDamageManager::GetDoorStatus(int32 door)
{
	return m_doorStatus[door];
}

bool
CDamageManager::ProgressDoorDamage(uint8 door)
{
	int status = GetDoorStatus(door);
	if(status == 3)
		return false;
	SetDoorStatus(door, status+1);
	return true;
}

void
CDamageManager::SetPanelStatus(int32 panel, uint32 status)
{
	m_panelStatus = dpb(status, panel*4, 4, m_panelStatus);
}

int32
CDamageManager::GetPanelStatus(int32 panel)
{
	return ldb(panel*4, 4, m_panelStatus);
}

bool
CDamageManager::ProgressPanelDamage(uint8 panel)
{
	int status = GetPanelStatus(panel);
	if(status == 3)
		return false;
	SetPanelStatus(panel, status+1);
	return true;
}

void
CDamageManager::SetLightStatus(eLights light, uint32 status)
{
	m_lightStatus = dpb(status, light*2, 2, m_lightStatus);
}

int32
CDamageManager::GetLightStatus(eLights light)
{
	return ldb(light*2, 2, m_lightStatus);
}

void
CDamageManager::SetWheelStatus(int32 wheel, uint32 status)
{
	m_wheelStatus[wheel] = status;
}

int32
CDamageManager::GetWheelStatus(int32 wheel)
{
	return m_wheelStatus[wheel];
}

bool
CDamageManager::ProgressWheelDamage(uint8 wheel)
{
	int status = GetWheelStatus(wheel);
	if(status == 3)
		return false;
	SetWheelStatus(wheel, status+1);
	return true;
}

void
CDamageManager::SetEngineStatus(uint32 status)
{
	if(status > 250)
		m_engineStatus = 250;
	else
		m_engineStatus = status;
}

int32
CDamageManager::GetEngineStatus(void)
{
	return m_engineStatus;
}

bool
CDamageManager::ProgressEngineDamage(void)
{
	int status = GetEngineStatus();
	int newstatus = status + 32 + (CGeneral::GetRandomNumber() & 0x1F);
	if(status < ENGINE_STATUS_ON_FIRE && newstatus > ENGINE_STATUS_ON_FIRE-1)
		newstatus = ENGINE_STATUS_ON_FIRE-1;
	SetEngineStatus(newstatus);
	return true;
}

STARTPATCHES
	InjectHook(0x545850, &CDamageManager::ResetDamageStatus, PATCH_JUMP);
	InjectHook(0x545B70, &CDamageManager::FuckCarCompletely, PATCH_JUMP);
	InjectHook(0x545790, &CDamageManager::GetComponentGroup, PATCH_JUMP);
	InjectHook(0x545A80, &CDamageManager::ApplyDamage, PATCH_JUMP);
	InjectHook(0x545920, &CDamageManager::SetDoorStatus, PATCH_JUMP);
	InjectHook(0x545930, &CDamageManager::GetDoorStatus, PATCH_JUMP);
	InjectHook(0x545970, &CDamageManager::ProgressDoorDamage, PATCH_JUMP);
	InjectHook(0x5458B0, &CDamageManager::SetPanelStatus, PATCH_JUMP);
	InjectHook(0x5458E0, (int32 (CDamageManager::*)(int32))&CDamageManager::GetPanelStatus, PATCH_JUMP);
	InjectHook(0x545A00, &CDamageManager::ProgressPanelDamage, PATCH_JUMP);
	InjectHook(0x545860, &CDamageManager::SetLightStatus, PATCH_JUMP);
	InjectHook(0x545890, &CDamageManager::GetLightStatus, PATCH_JUMP);
	InjectHook(0x545900, &CDamageManager::SetWheelStatus, PATCH_JUMP);
	InjectHook(0x545910, &CDamageManager::GetWheelStatus, PATCH_JUMP);
	InjectHook(0x545A40, &CDamageManager::ProgressWheelDamage, PATCH_JUMP);
	InjectHook(0x545940, &CDamageManager::SetEngineStatus, PATCH_JUMP);
	InjectHook(0x545960, &CDamageManager::GetEngineStatus, PATCH_JUMP);
	InjectHook(0x5459B0, &CDamageManager::ProgressEngineDamage, PATCH_JUMP);
ENDPATCHES