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BUILDING.CPP
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/*
** Command & Conquer(tm)
** Copyright 2025 Electronic Arts Inc.
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* $Header: F:\projects\c&c\vcs\code\building.cpv 2.13 02 Aug 1995 17:00:14 JOE_BOSTIC $ */
/***********************************************************************************************
*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
***********************************************************************************************
* *
* Project Name : Command & Conquer *
* *
* File Name : BUILDING.CPP *
* *
* Programmer : Joe L. Bostic *
* *
* Start Date : September 10, 1993 *
* *
* Last Update : August 20, 1995 [JLB] *
* *
*---------------------------------------------------------------------------------------------*
* Functions: *
* BuildingClass::AI -- Handles non-graphic AI processing for buildings. *
* BuildingClass::Active_Click_With -- Handles cell selection for buildings. *
* BuildingClass::As_Target -- Convert the building into a target value. *
* BuildingClass::Assign_Target -- Assigns a target to the building. *
* BuildingClass::Begin_Mode -- Begins an animation mode for the building. *
* BuildingClass::BuildingClass -- Constructor for buildings. *
* BuildingClass::Can_Demolish -- Can the player demolish (sell back) the building? *
* BuildingClass::Can_Enter_Cell -- Determines if building can be placed down. *
* BuildingClass::Can_Fire -- Determines if this building can fire. *
* BuildingClass::Captured -- Captures the building. *
* BuildingClass::Center_Coord -- Fetches the center coordinate for the building. *
* BuildingClass::Click_With -- Handles clicking on the map while the building is selected. *
* BuildingClass::Crew_Type -- This determines the crew that this object generates. *
* BuildingClass::Death_Announcement -- Announce the death of this building. *
* BuildingClass::Debug_Dump -- Displays building status to the monochrome screen. *
* BuildingClass::Detach -- Handles target removal from the game system. *
* BuildingClass::Detach_All -- Possibly abandons production according to factory type. *
* BuildingClass::Draw_It -- Displays the building at the location specified. *
* BuildingClass::Drop_Debris -- Drops rubble when building is destroyed. *
* BuildingClass::Enter_Idle_Mode -- The building will enter its idle mode. *
* BuildingClass::Exit_Object -- Initiates an object to leave the building. *
* BuildingClass::Fire_At -- Fires weapon at specified target. *
* BuildingClass::Fire_Coord -- Calculates the coordinate that projectile would appear. *
* BuildingClass::Fire_Direction -- Fetches the direction of firing. *
* BuildingClass::Fire_Out -- Handles when attached animation expires. *
* BuildingClass::Flush_For_Placement -- Handles clearing a zone for object placement. *
* BuildingClass::Grand_Opening -- Handles construction completed special operations. *
* BuildingClass::Greatest_Threat -- Searches for target that building can fire upon. *
* BuildingClass::Init -- Initialize the building system to an empty null state. *
* BuildingClass::Limbo -- Handles power adjustment as building goes into limbo. *
* BuildingClass::Look -- Reveal map around building. *
* BuildingClass::Mark -- Building interface to map rendering system. *
* BuildingClass::Mission_Attack -- Handles attack mission for building. *
* BuildingClass::Mission_Construction -- Handles mission construction. *
* BuildingClass::Mission_Deconstruction -- Handles building deconstruction. *
* BuildingClass::Mission_Guard -- Handles guard mission for combat buildings. *
* BuildingClass::Mission_Harvest -- Handles refinery unloading harvesters. *
* BuildingClass::Mission_Missile -- State machine for nuclear missile launch. *
* BuildingClass::Mission_Repair -- Handles the repair (active) state for building. *
* BuildingClass::Mission_Unload -- Handles the unload mission for a building. *
* BuildingClass::Pip_Count -- Determines "full" pips to display for building. *
* BuildingClass::Power_Output -- Fetches the current power output from this building. *
* BuildingClass::Read_INI -- Reads buildings from INI file. *
* BuildingClass::Receive_Message -- Handle an incoming message to the building. *
* BuildingClass::Refund_Amount -- Fetches the refund amount if building is sold. *
* BuildingClass::Remap_Table -- Fetches the remap table to use for this building. *
* BuildingClass::Repair -- Initiates or terminates the repair process. *
* BuildingClass::Revealed -- Reveals the building to the specified house. *
* BuildingClass::Sell_Back -- Controls the sell back (demolish) operation. *
* BuildingClass::Sort_Y -- Returns the building coordinate used for sorting. *
* BuildingClass::Take_Damage -- Inflicts damage points upon a building. *
* BuildingClass::Toggle_Primary -- Toggles the primary factory state. *
* BuildingClass::Unlimbo -- Removes a building from limbo state. *
* BuildingClass::Update_Buildables -- Informs sidebar of additional construction options. *
* BuildingClass::Update_Specials -- removes computer specials for lost bld *
* BuildingClass::What_Action -- Determines action to perform if click on specified object. *
* BuildingClass::What_Action -- Determines what action will occur. *
* BuildingClass::Write_INI -- Writes all building data to an INI file. *
* BuildingClass::delete -- Deallocates building object. *
* BuildingClass::new -- Allocates a building object from building pool. *
* BuildingClass::~BuildingClass -- Destructor for building type objects. *
* BuildingClass::Validate -- validates building pointer *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include "function.h"
enum SAMState {
SAM_NONE=-1, // Used for non SAM site buildings.
SAM_UNDERGROUND, // Launcher is underground and awaiting orders.
SAM_RISING, // Doors open and launcher rises to normal locked down position.
SAM_READY, // Launcher can be facing any direction tracking targets.
SAM_FIRING, // Stationary while missile is being fired.
SAM_READY2, // Launcher can be facing any direction tracking targets.
SAM_FIRING2, // Stationary while missile is being fired.
SAM_LOCKING, // Rotating to locked position in preparation for lowering.
SAM_LOWERING, // Launcher is lowering into the ground.
};
/***************************************************************************
** Center of building offset table.
*/
COORDINATE const BuildingClass::CenterOffset[BSIZE_COUNT] = {
0x00800080L,
0x008000FFL,
0x00FF0080L,
0x00FF00FFL,
0x018000FFL,
0x00FF0180L,
0x01800180L,
0x00FF0200L,
0x02800280L,
};
/*
** This contains the value of the Virtual Function Table Pointer
*/
void * BuildingClass::VTable;
/***********************************************************************************************
* BuildingClass::Validate -- validates building pointer *
* *
* INPUT: *
* none. *
* *
* OUTPUT: *
* 1 = ok, 0 = error *
* *
* WARNINGS: *
* none. *
* *
* HISTORY: *
* 08/09/1995 BRR : Created. *
*=============================================================================================*/
#ifdef CHEAT_KEYS
int BuildingClass::Validate(void) const
{
int num;
num = Buildings.ID(this);
if (num < 0 || num >= BUILDING_MAX) {
Validate_Error("BUILDING");
return (0);
}
else
return (1);
}
#else
#define Validate()
#endif
/***********************************************************************************************
* BuildingClass::Receive_Message -- Handle an incoming message to the building. *
* *
* This routine handles an incoming message to the building. Messages regulate the *
* various cooperative ventures between buildings and units. This might include such *
* actions as coordinating the construction yard animation with the actual building's *
* construction animation. *
* *
* INPUT: from -- The originator of the message received. *
* *
* message -- The radio message received. *
* *
* param -- Reference to an optional parameter that might be used to return *
* extra information to the message originator. *
* *
* OUTPUT: Returns with the response to the message (typically, this is just RADIO_OK). *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 06/09/1994 JLB : Created. *
* 06/26/1995 JLB : Forces refinery load anim to start immediately. *
* 08/13/1995 JLB : Uses ScenarioInit for special loose "CAN_LOAD" check. *
*=============================================================================================*/
RadioMessageType BuildingClass::Receive_Message(RadioClass * from, RadioMessageType message, long & param)
{
Validate();
switch (message) {
/*
** This message is received as a request to attach/load/dock with this building.
** Verify that this is allowed and return the appropriate response.
*/
case RADIO_CAN_LOAD:
TechnoClass::Receive_Message(from, message, param);
if (BState == BSTATE_CONSTRUCTION || (!ScenarioInit && In_Radio_Contact())) return(RADIO_NEGATIVE);
switch (Class->Type) {
case STRUCT_AIRSTRIP:
if (from->What_Am_I() == RTTI_AIRCRAFT && *((AircraftClass const *)from) == AIRCRAFT_CARGO) {
return(RADIO_ROGER);
}
break;
case STRUCT_HELIPAD:
if (from->What_Am_I() == RTTI_AIRCRAFT && !((AircraftClass const *)from)->Class->IsFixedWing) {
return(RADIO_ROGER);
}
break;
case STRUCT_REPAIR:
if (/*from->Health_Ratio() < 0x0100 &&*/ from->What_Am_I() == RTTI_UNIT || from->What_Am_I() == RTTI_AIRCRAFT) {
return(RADIO_ROGER);
}
return(RADIO_NEGATIVE);
case STRUCT_REFINERY:
if (from->What_Am_I() == RTTI_UNIT &&
*((UnitClass *)from) == UNIT_HARVESTER &&
(ScenarioInit || !Is_Something_Attached())) {
return(RADIO_ROGER);
}
break;
default:
break;
}
return(RADIO_NEGATIVE);
/*
** This message is received when the object has attached itself to this
** building.
*/
case RADIO_IM_IN:
if (Mission == MISSION_DECONSTRUCTION) {
return(RADIO_NEGATIVE);
}
switch (Class->Type) {
case STRUCT_REPAIR:
IsReadyToCommence = true;
Assign_Mission(MISSION_REPAIR);
from->Assign_Mission(MISSION_SLEEP);
return(RADIO_ROGER);
case STRUCT_HELIPAD:
Assign_Mission(MISSION_REPAIR);
from->Assign_Mission(MISSION_SLEEP);
return(RADIO_ROGER);
case STRUCT_REFINERY:
ScenarioInit++;
Begin_Mode(BSTATE_ACTIVE);
ScenarioInit--;
Mark(MARK_CHANGE);
Assign_Mission(MISSION_HARVEST);
return(RADIO_ATTACH);
}
break;
/*
** Docking maneuver maintenance message. See if new order should be given to the
** unit trying to dock.
*/
case RADIO_DOCKING:
TechnoClass::Receive_Message(from, message, param);
/*
** When in radio contact for loading, the refinery starts
** flashing the lights.
*/
if (*this == STRUCT_REFINERY && BState != BSTATE_FULL) {
Begin_Mode(BSTATE_FULL);
}
if (Transmit_Message(RADIO_NEED_TO_MOVE, from) == RADIO_ROGER) {
if (*this == STRUCT_HELIPAD) {
param = As_Target();
} else {
if (*this == STRUCT_REPAIR) {
Transmit_Message(RADIO_TETHER);
param = ::As_Target(Coord_Cell(Center_Coord()));
} else {
param = ::As_Target(Coord_Cell(Adjacent_Cell(Center_Coord(), DIR_SW)));
}
}
/*
** Tell the harvester to move to the docking pad of the refinery.
*/
if (Transmit_Message(RADIO_MOVE_HERE, param, from) == RADIO_YEA_NOW_WHAT) {
/*
** Since the harvester is already there, tell it to begin the backup
** procedure now. If it can't, then tell it to get outta here.
*/
Transmit_Message(RADIO_TETHER);
if (*this == STRUCT_REFINERY && Transmit_Message(RADIO_BACKUP_NOW, from) != RADIO_ROGER) {
from->Scatter(NULL, true);
}
}
}
return(RADIO_ROGER);
/*
** If a transport or harvester is requesting permission to head toward, dock
** and load/unload, check to make sure that this is allowed given the current
** state of the building.
*/
case RADIO_ARE_REFINERY:
if (Is_Something_Attached() || In_Radio_Contact() || IsInLimbo || House->Class->House != from->Owner() || (*this != STRUCT_REFINERY/* && *this != STRUCT_REPAIR*/)) {
return(RADIO_NEGATIVE);
}
return(RADIO_ROGER);
/*
** Someone is telling us that it is starting construction. This should only
** occur if this is a construction yard and a building was just placed on
** the map.
*/
case RADIO_BUILDING:
Assign_Mission(MISSION_REPAIR);
TechnoClass::Receive_Message(from, message, param);
return(RADIO_ROGER);
/*
** Someone is telling us that they have finished construction. This should
** only occur if this is a construction yard and the building that was being
** constructed has finished. In this case, stop the construction yard
** animation.
*/
case RADIO_COMPLETE:
if (Mission != MISSION_DECONSTRUCTION) {
Assign_Mission(MISSION_GUARD);
}
TechnoClass::Receive_Message(from, message, param);
return(RADIO_ROGER);
/*
** This message may occur unexpectedly if the unit in contact with this
** building is suddenly destroyed. Handle any cleanup necessary. For example,
** a construction yard should stop its construction animation in this case.
*/
case RADIO_OVER_OUT:
Begin_Mode(BSTATE_IDLE);
TechnoClass::Receive_Message(from, message, param);
return(RADIO_ROGER);
/*
** This message is received when an object has completely left
** building. Sometimes special cleanup action is required when
** this event occurs.
*/
case RADIO_UNLOADED:
if (*this == STRUCT_REPAIR) {
if (Distance(from) < 0x0180) {
return(RADIO_ROGER);
}
}
TechnoClass::Receive_Message(from, message, param);
if (*this == STRUCT_WEAP || *this == STRUCT_AIRSTRIP || *this == STRUCT_REPAIR) return(RADIO_RUN_AWAY);
return(RADIO_ROGER);
}
/*
** Pass along the message to the default message handler in the radio itself.
*/
return(TechnoClass::Receive_Message(from, message, param));
}
#ifdef CHEAT_KEYS
/***********************************************************************************************
* BuildingClass::Debug_Dump -- Displays building status to the monochrome screen. *
* *
* This utility function will output the current status of the building class to the *
* monochrome screen. It is through this data that bugs may be fixed or detected. *
* *
* INPUT: none *
* *
* OUTPUT: none *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 05/31/1994 JLB : Created. *
*=============================================================================================*/
void BuildingClass::Debug_Dump(MonoClass *mono) const
{
Validate();
mono->Set_Cursor(0, 0);
mono->Print(
"ÚName:ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂMission:ÄÄÄÂTarCom:ÂÄÄÄÄÄÄÄÂRadio:ÂCoord:ÄÄÂÄÄÄÄÄÄÄÄÂSt:Ä¿\n"
"³ ³ ³ ³ ³ ³ ³ ³ ³\n"
"ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂNÂYÂHealth:ÄÂÄÄÄÁÄÂTurret:ÂÄÄÄÄÄÁÂÄBuilding:ÄÄÂCargo:ÄÄÄÄÁÄÄÄÄ´\n"
"³Active........³ ³ ³ ³ ³ ³ ³ ³ ³\n"
"³Limbo.........³ ³ ÃÄÄÄÄÄÄÄÄÁÄÄÄÄÄÁÄÄÄÄÄÄÄÁÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´\n"
"³Owned.........³ ³ ³Last Message: ³\n"
"³Discovered....³ ³ ÃTimer:ÂArm:ÂÄÄÄÄÄÄÂTiberium:ÂFlash:ÂStage:ÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ\n"
"³Selected......³ ³ ³ ³ ³ ³ ³ ³ ³ \n"
"³Teathered.....³ ³ ÃÄÄÄÄÄÄÁÄÄÄÄÁÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÁÄÄÄÄÄÄÙ \n"
"³Locked on Map.³ ³ ³ \n"
"³Is A Loaner...³ ³ ³ \n"
"³ ³ ³ ³ \n"
"³ ³ ³ ³ \n"
"³ ³ ³ ³ \n"
"³Repairing.....³ ³ ³ \n"
"³ ³ ³ ³ \n"
"³ ³ ³ ³ \n"
"³Recoiling.....³ ³ ³ \n"
"³To Display....³ ³ ³ \n"
"ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÁÄÙ \n");
mono->Set_Cursor(1, 1);mono->Printf("%s:%s", House->Class->IniName, Class->IniName);
mono->Set_Cursor(35, 3);mono->Printf("%02X:%02X", PrimaryFacing.Current(), PrimaryFacing.Desired());
mono->Set_Cursor(50, 3);
if (Factory) {
mono->Printf(Factory->Get_Object()->Class_Of().IniName);
mono->Printf(" ");
mono->Printf("%d%%", Factory->Completion());
} else {
mono->Printf("(empty)");
}
mono->Text_Print("X", 16 + (IsRepairing?2:0), 14);
// mono->Set_Cursor(44, 3);mono->Printf("%d", SAM);
mono->Set_Cursor(34, 1);mono->Printf("%04X", TarCom);
mono->Set_Cursor(28, 7);mono->Printf("%2d", Arm);
TechnoClass::Debug_Dump(mono);
}
#endif
/***********************************************************************************************
* BuildingClass::Draw_It -- Displays the building at the location specified. *
* *
* This is the low level graphic routine that displays the building at the location *
* specified. *
* *
* INPUT: x,y -- The coordinate to draw the building at. *
* *
* window -- The clipping window to use. *
* *
* OUTPUT: none *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 06/20/1994 JLB : Created. *
* 06/27/1994 JLB : Takes a clipping window parameter. *
* 07/06/1995 JLB : Handles damaged silos correctly. *
*=============================================================================================*/
void BuildingClass::Draw_It(int x, int y, WindowNumberType window)
{
Validate();
void const * shapefile; // Pointer to loaded shape file.
int shapenum;
shapenum = Fetch_Stage();
/*
** The shape file to use for rendering depends on whether the building
** is undergoing construction or not.
*/
if (BState == BSTATE_CONSTRUCTION) {
shapefile = Class->Get_Buildup_Data();
/*
** If the building is deconstructing, then the display frame progresses
** from the end to the beginning. Reverse the shape number accordingly.
*/
if (Mission == MISSION_DECONSTRUCTION) {
shapenum = (Class->Anims[BState].Start+Class->Anims[BState].Count-1)-shapenum;
}
} else {
shapefile = Class->Get_Image_Data();
/*
** The obelisk has a stage value than can be overridden by
** its current state.
*/
if (*this == STRUCT_OBELISK) {
if (IsCharged) {
shapenum = 3;
} else {
if (IsCharging) {
shapenum = Fetch_Stage();
} else {
shapenum = 0;
}
}
}
/*
** Buildings that contain a turret handle their shape determination
** differently than normal buildings. They need to take into consideration
** the direction the turret is facing.
*/
if (Class->IsTurretEquipped) {
shapenum = UnitClass::BodyShape[Facing_To_32(PrimaryFacing.Current())];
if (*this == STRUCT_SAM) {
/*
** SAM sites that are free to rotate fetch their animation frame
** from the building's turret facing. All other animation stages
** fetch their frame from the embedded animation sequencer.
*/
if (Status == SAM_READY || Status == SAM_FIRING || Status == SAM_LOCKING) {
shapenum += 16;
} else {
shapenum = Fetch_Stage();
}
} else {
if (IsInRecoilState) {
shapenum += 32;
}
}
if (Health_Ratio() < 0x0080) {
shapenum += 64;
}
} else {
/*
** If it has only one point of strength left, it is shown in the
** worst state possible.
*/
if (Strength <= 1) {
shapenum = Get_Build_Frame_Count(shapefile)-1;
} else {
if (*this == STRUCT_WEAP) {
shapenum = 0;
if (Health_Ratio() < 0x0080) {
shapenum = 1;
}
} else {
/*
** Special render stage for silos. The stage is dependant on the current
** Tiberium collected as it relates to Tiberium capacity.
*/
if (*this == STRUCT_STORAGE) {
int level = 0;
if (House->Capacity) {
level = (House->Tiberium * 5) / House->Capacity;
}
// int level = Fixed_To_Cardinal(4, Cardinal_To_Fixed(House->Capacity, House->Tiberium));
shapenum += Bound(level, 0, 4);
if (Health_Ratio() < 0x0080) {
shapenum += 5;
}
} else {
if (Health_Ratio() < 0x0080) {
/*
** Special damage stage for pump.
*/
if (!Class->IsSimpleDamage) {
int last1 = Class->Anims[BSTATE_IDLE].Start + Class->Anims[BSTATE_IDLE].Count;
int last2 = Class->Anims[BSTATE_ACTIVE].Start + Class->Anims[BSTATE_ACTIVE].Count;
int largest = MAX(last1, last2);
last2 = Class->Anims[BSTATE_AUX1].Start + Class->Anims[BSTATE_AUX1].Count;
largest = MAX(largest, last2);
last2 = Class->Anims[BSTATE_AUX2].Start + Class->Anims[BSTATE_AUX2].Count;
largest = MAX(largest, last2);
shapenum += largest;
} else {
/*
** Presume that the damage stage is the end frame.
*/
shapenum = Get_Build_Frame_Count(shapefile) - 2;
}
}
}
}
}
}
}
/*
** Actually draw the building shape.
*/
IsTheaterShape = Class->IsTheater;
Techno_Draw_Object(shapefile, shapenum, x, y, window);
IsTheaterShape = false;
/*
** Patch for adding overlay onto weapon factory. Only add the overlay if
** the building has more than 1 hp. Also, if the building's in radio
** contact, he must be unloading a constructed vehicle, so draw that
** vehicle before drawing the overlay.
*/
if (BState != BSTATE_CONSTRUCTION) {
/*
** A Tethered object is always rendered AFTER the building.
*/
if (IsTethered && In_Radio_Contact() && !Contact_With_Whom()->IsInLimbo) {
Contact_With_Whom()->Render(true);
}
/*
** Draw the weapon factory custom overlay graphic.
*/
if (*this == STRUCT_WEAP && Strength > 1) {
shapenum = Door_Stage();
if (Health_Ratio() < 0x0080) shapenum += 10;
Techno_Draw_Object(WarFactoryOverlay, shapenum, x, y, window);
}
/*
** Draw any repair feedback graphic required.
*/
if (IsRepairing && IsWrenchVisible) {
CC_Draw_Shape(ObjectTypeClass::SelectShapes, SELECT_WRENCH, x, y, window, SHAPE_CENTER|SHAPE_WIN_REL);
}
}
TechnoClass::Draw_It(x, y, window);
}
/***********************************************************************************************
* BuildingClass::Mark -- Building interface to map rendering system. *
* *
* This routine is used to mark the map cells so that when it renders *
* the underlying icons will also be updated as necessary. *
* *
* INPUT: mark -- Type of image change (MARK_UP, _DOWN, _CHANGE) *
* MARK_UP -- Building is removed. *
* MARK_CHANGE -- Building changes shape. *
* MARK_DOWN -- Building is added. *
* *
* OUTPUT: bool; Did the mark operation succeed? Failure could be the result of marking down *
* when the building is already marked down, or visa versa. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 03/31/1994 JLB : Created. *
* 04/15/1994 JLB : Converted to member function. *
* 04/16/1994 JLB : Added health bar tracking. *
* 12/23/1994 JLB : Calls low level check before proceeding. *
* 01/27/1995 JLB : Special road spacer template added. *
*=============================================================================================*/
bool BuildingClass::Mark(MarkType mark)
{
Validate();
if (TechnoClass::Mark(mark)) {
short const *offset = Overlap_List();
short const *occupy = Occupy_List();
CELL cell = Coord_Cell(Coord);
SmudgeType bib;
switch (mark) {
case MARK_UP:
Map.Pick_Up(cell, this);
if (Class->Bib_And_Offset(bib, cell)) {
SmudgeClass * smudge = new SmudgeClass(bib);
if (smudge) {
smudge->Disown(cell);
delete smudge;
}
}
break;
case MARK_DOWN:
/*
** Special wall logic is handled here. A building that is really a wall
** gets converted into an overlay wall type when it is placed down. The
** actual building object itself is destroyed.
*/
if (Class->IsWall) {
switch (Class->Type) {
case STRUCT_BRICK_WALL:
new OverlayClass(OVERLAY_BRICK_WALL, cell, House->Class->House);
break;
case STRUCT_BARBWIRE_WALL:
new OverlayClass(OVERLAY_BARBWIRE_WALL, cell, House->Class->House);
break;
case STRUCT_SANDBAG_WALL:
new OverlayClass(OVERLAY_SANDBAG_WALL, cell, House->Class->House);
break;
case STRUCT_WOOD_WALL:
new OverlayClass(OVERLAY_WOOD_WALL, cell, House->Class->House);
break;
case STRUCT_CYCLONE_WALL:
new OverlayClass(OVERLAY_CYCLONE_WALL, cell, House->Class->House);
break;
}
Transmit_Message(RADIO_OVER_OUT);
delete this;
} else {
if (Can_Enter_Cell(cell) == MOVE_OK) {
/*
** Determine if a bib is required for this building. If one is, then
** create and place it.
*/
CELL newcell = cell;
if (Class->Bib_And_Offset(bib, newcell)) {
new SmudgeClass(bib, Cell_Coord(newcell), House->Class->House);
}
Map.Place_Down(cell, this);
} else {
return(false);
}
}
break;
default:
Map.Refresh_Cells(cell, offset);
Map.Refresh_Cells(cell, occupy);
break;
}
return(true);
}
return(false);
}
/***********************************************************************************************
* BuildingClass::Fire_At -- Fires weapon at specified target. *
* *
* This routine does the actual firing of a projectile from the *
* building toward the specified target. Prior to calling this *
* routine, the building must have rotated into position and acquired *
* a suitable target. *
* *
* INPUT: target -- The target to fire upon. *
* *
* which -- Which weapon to use for firing. 0=primary, 1=secondary. *
* *
* OUTPUT: Returns with a pointer to the projectile just launched. This *
* may come in handy if additional adjustments to the projectile *
* are required. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 04/16/1994 JLB : Created. *
*=============================================================================================*/
BulletClass * BuildingClass::Fire_At(TARGET target, int which)
{
Validate();
BulletClass * bullet; // Projectile.
WeaponTypeClass const * weapon = (which == 0) ? &Weapons[Class->Primary] : &Weapons[Class->Secondary];
bullet = TechnoClass::Fire_At(target, which);
if (bullet) {
if (*this == STRUCT_SAM) {
AnimClass *anim = new AnimClass((AnimType)(ANIM_SAM_N + Dir_Facing(PrimaryFacing.Current())), Center_Coord());
if (anim) {
anim->Attach_To(this);
}
} else {
/*
** Flash the muzzle, play sound, and perform any firing animation.
*/
Sound_Effect(weapon->Sound, Coord);
if (weapon->Fires == BULLET_BULLET) {
new AnimClass((AnimType)(ANIM_GUN_N + Dir_Facing(PrimaryFacing.Current())), Fire_Coord(which));
} else {
if (weapon->Fires == BULLET_LASER) {
int x,y,x1,y1;
COORDINATE source, dest;
source = Fire_Coord(which);
dest = As_Coord(target);
IsCharging = false;
IsCharged = false;
Set_Stage(0);
Set_Rate(0);
if (Map.Push_Onto_TacMap(source, dest) && SpecialDialog == SDLG_NONE) {
Map.Coord_To_Pixel(source, x, y);
Map.Coord_To_Pixel(dest, x1, y1);
x += Map.TacPixelX;
x1 += Map.TacPixelX;
y += Map.TacPixelY;
y1 += Map.TacPixelY;
Set_Logic_Page(SeenBuff);
LogicPage->Draw_Line(x+1, y, x1, y1, 0x7D);
LogicPage->Draw_Line(x-1, y, x1, y1, 0x7D);
LogicPage->Draw_Line(x, y, x1, y1, 0x7F);
Delay(1); // Make sure line is visible briefly
Map.Flag_To_Redraw(true);
}
new SmudgeClass(Random_Pick(SMUDGE_SCORCH1, SMUDGE_SCORCH6), As_Coord(target) );
} else {
new AnimClass(ANIM_MUZZLE_FLASH, Fire_Coord(which));
}
}
Mark(MARK_CHANGE);
}
}
return(bullet);
}
/***********************************************************************************************
* BuildingClass::AI -- Handles non-graphic AI processing for buildings. *
* *
* This function is to handle the AI logic for the building. The graphic logic (facing, *
* firing, and animation) is handled elsewhere. *
* *
* INPUT: none *
* *
* OUTPUT: none *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 05/31/1994 JLB : Created. *
* 12/26/1994 JLB : Handles production. *
* 06/11/1995 JLB : Revamped. *
*=============================================================================================*/
void BuildingClass::AI(void)
{
Validate();
/*
** Process building animation state changes. Transition to a following state
** if there is one specified and the current animation sequence has expired.
** This process must occur before mission AI since the mission AI relies on
** the bstate change to occur immediately before the MissionClass::AI.
*/
bool stagechange = Graphic_Logic();
bool toloop = false;
/*
** Always refresh the SAM site if it has an animation change.
*/
if (*this == STRUCT_SAM && stagechange) Mark(MARK_CHANGE);
if ((!Class->IsTurretEquipped && *this != STRUCT_OBELISK) || Mission == MISSION_CONSTRUCTION || Mission == MISSION_DECONSTRUCTION) {
if (stagechange) {
/*
** Check for animation end or if special case of MCV deconstructing when it is allowed
** to convert back into an MCV.
*/
BuildingTypeClass::AnimControlType const * ctrl = Fetch_Anim_Control();
/*
** When the last frame of the current animation sequence is reached, flag that
** a new mission may be started. This must occur before the animation actually
** loops so that if a mission change does occur, it will have a chance to change
** the building graphic before the last frame is replaced by the first frame of
** the loop.
*/
if (Fetch_Stage() == ctrl->Start+ctrl->Count-1 || (Special.IsMCVDeploy && *this == STRUCT_CONST && Mission == MISSION_DECONSTRUCTION && Fetch_Stage() == (42-19))) {
IsReadyToCommence = true;
}
/*
** If the animation advances beyond the last frame, then start the animation
** sequence over from the beginning.
*/
if (Fetch_Stage() >= ctrl->Start+ctrl->Count) {
toloop = true;
}
Mark(MARK_CHANGE);
} else {
if (BState == BSTATE_NONE || Fetch_Rate() == 0) {
IsReadyToCommence = true;
}
}
}
/*
** If there is a door that is animating, then it might cause this building
** to be redrawn. Check for and flag to redraw as necessary.
*/
if (Time_To_Redraw()) {
Clear_Redraw_Flag();
Mark(MARK_CHANGE);
}
/*
** The animation sequence has looped. Restart it and flag this loop condition.
** This is used to tell the mission system that the animation has completed. It
** also signals that now is a good time to act on any pending mission.
*/
if (toloop) {
BuildingTypeClass::AnimControlType const * ctrl = Fetch_Anim_Control();
if (BState == BSTATE_CONSTRUCTION || BState == BSTATE_IDLE) {
Set_Rate(Options.Normalize_Delay(ctrl->Rate));
} else {
Set_Rate(ctrl->Rate);
}
Set_Stage(ctrl->Start);
Mark(MARK_CHANGE);
}
/*
** If now is a good time to act on a new mission, then do so. This process occurs
** here because some outside event may have requested a mission change for the building.
** Such outside requests (player input) must be initiated BEFORE the normal AI process.
*/
if (IsReadyToCommence && BState != BSTATE_CONSTRUCTION) {
/*
** Clear the commencement flag ONLY if something actually occured. By acting
** this way, a building can set the IsReadyToCommence flag before it goes
** to "sleep" knowing that it will wake up as soon as a new mission comes
** along.
*/
if (Commence()) {
IsReadyToCommence = false;
}
}
/*
** Proceed with normal logic processing. This is where the mission processing
** occurs. This call must be located after the animation sequence makes the
** transition to the next frame (see above) in order for the mission logic to
** act at the exact moment of graphic transition BEFORE it has a chance to
** be displayed.
*/
TechnoClass::AI();
/*
** If now is a good time to act on a new mission, then do so. This occurs here because
** some AI event may have requested a mission change (usually from another mission
** state machine). This must occur here before it has a chance to render.
*/
if (IsReadyToCommence) {
/*
** Clear the commencement flag ONLY if something actually occured. By acting
** this way, a building can set the IsReadyToCommence flag before it goes
** to "sleep" knowing that it will wake up as soon as a new mission comes
** along.
*/
if (Commence()) {
IsReadyToCommence = false;
}
}
/*
** If a change of animation was requested, then make the change
** now. The building animation system acts independantly but subordinate
** to the mission state machine system. By performing the animation change-up
** here, the mission AI system is ensured of immediate visual affect when it
** decides to change the animation state of the building.
*/
if (QueueBState != BSTATE_NONE) {
if (BState != QueueBState) {
BState = QueueBState;
BuildingTypeClass::AnimControlType const * ctrl = Fetch_Anim_Control();
if (BState == BSTATE_CONSTRUCTION || BState == BSTATE_IDLE) {
Set_Rate(Options.Normalize_Delay(ctrl->Rate));
} else {
Set_Rate(ctrl->Rate);
}
Set_Stage(ctrl->Start);
}
QueueBState = BSTATE_NONE;
}
/*
** If the building's strength has changed, then update the power
** accordingly.
*/
if (Strength != LastStrength) {
int oldpower = Power_Output();
LastStrength = Strength;
int newpower = Power_Output();