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map.c
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map.c
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/*
C-Dogs SDL
A port of the legendary (and fun) action/arcade cdogs.
Copyright (C) 1995 Ronny Wester
Copyright (C) 2003 Jeremy Chin
Copyright (C) 2003-2007 Lucas Martin-King
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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-------------------------------------------------------------------------------
map.c - map related functions
Author: $Author: lmartinking $
Rev: $Revision: 250 $
URL: $HeadURL: svn://svn.icculus.org/cdogs-sdl/trunk/src/map.c $
ID: $Id: map.c 250 2007-07-06 16:38:43Z lmartinking $
*/
#include <string.h>
#include <stdlib.h>
#include "map.h"
#include "pics.h"
#include "objs.h"
#include "triggers.h"
#include "sounds.h"
#include "actors.h"
#include "gamedata.h"
#include "mission.h"
#include "utils.h"
// Values for internal map
#define MAP_FLOOR 0
#define MAP_WALL 1
#define MAP_DOOR 2
#define MAP_ROOM 3
#define MAP_SQUARE 4
#define MAP_NOTHING 6
#define MAP_ACCESS_RED 256
#define MAP_ACCESS_BLUE 512
#define MAP_ACCESS_GREEN 1024
#define MAP_ACCESS_YELLOW 2048
#define MAP_LEAVEFREE 4096
#define MAP_MASKACCESS 0xFF
#define MAP_ACCESSBITS 0x0F00
TTile gMap[YMAX][XMAX];
unsigned char gAutoMap[YMAX][XMAX];
static int accessCount;
static unsigned short internalMap[YMAX][XMAX];
static int tilesSeen = 0;
static int tilesTotal = XMAX * YMAX;
#define iMap( x, y) internalMap[y][x]
struct Buffer * NewBuffer(void)
{
struct Buffer *b;
int rows, cols, i;
b = sys_mem_alloc(sizeof(struct Buffer));
rows = X_TILES;
cols = Y_TILES;
b->tiles = (TTile **)sys_mem_alloc(rows * sizeof(TTile *));
b->tiles[0] = (TTile *)sys_mem_alloc(rows * cols * sizeof(TTile));
for(i = 1; i < rows; i++)
b->tiles[i] = b->tiles[0] + i * cols;
return b;
}
void ClearBuffer(struct Buffer *b)
{
if (!b) {
printf("!!! Buffer nonexistent?\n");
return;
}
// TTile *tmp = b->tiles;
// memset(b, 0, sizeof(struct Buffer));
// memset(tmp, 0, sizeof(TTile) * X_TILES * Y_TILES);
// b->tiles = tmp;
}
static void AddItemToTile(TTileItem * t, TTile * tile)
{
t->next = tile->things;
tile->things = t;
}
static void RemoveItemFromTile(TTileItem * t, TTile * tile)
{
TTileItem **h = &tile->things;
while (*h && *h != t)
h = &(*h)->next;
if (*h) {
*h = t->next;
t->next = NULL;
}
}
void MoveTileItem(TTileItem * t, int x, int y)
{
TTile *tile;
int x1 = t->x / TILE_WIDTH;
int y1 = t->y / TILE_HEIGHT;
int x2 = x / TILE_WIDTH;
int y2 = y / TILE_HEIGHT;
t->x = x;
t->y = y;
if (x1 == x2 && y1 == y2)
return;
tile = &Map(x1, y1);
RemoveItemFromTile(t, tile);
tile = &Map(x2, y2);
AddItemToTile(t, tile);
}
void RemoveTileItem(TTileItem * t)
{
TTile *tile;
int x = t->x / TILE_WIDTH;
int y = t->y / TILE_HEIGHT;
tile = &Map(x, y);
RemoveItemFromTile(t, tile);
}
int CheckWall(int x, int y, int w, int h)
{
x >>= 8;
y >>= 8;
if (HitWall(x - w, y - h) ||
HitWall(x - w, y) ||
HitWall(x - w, y + h) ||
HitWall(x, y + h) ||
HitWall(x + w, y + h) ||
HitWall(x + w, y) ||
HitWall(x + w, y - h) || HitWall(x, y - h))
return 1;
return 0;
}
int ItemsCollide(TTileItem * item1, TTileItem * item2, int x, int y)
{
int dx = abs(x - item2->x);
int dy = abs(y - item2->y);
int rx = item1->w + item2->w;
int ry = item1->h + item2->h;
if (dx < rx && dy < ry) {
int odx = abs(item1->x - item2->x);
int ody = abs(item1->y - item2->y);
if (dx <= odx || dy <= ody)
return 1;
}
return 0;
}
TTileItem *CheckTileItemCollision(TTileItem * item, int x, int y, int mask)
{
TTileItem *i;
int tx, ty, dx, dy;
TTile *tile;
tx = x / TILE_WIDTH;
ty = y / TILE_HEIGHT;
if (tx == 0 || ty == 0 || tx >= XMAX - 1 || ty >= YMAX - 1)
return NULL;
for (dy = -1; dy <= 1; dy++)
for (dx = -1; dx <= 1; dx++) {
tile = &Map(tx + dx, ty + dy);
i = tile->things;
while (i) {
if (item != i &&
(i->flags & mask) != 0 &&
ItemsCollide(item, i, x, y))
return i;
i = i->next;
}
}
return NULL;
}
void GuessCoords(int *x, int *y)
{
if (gMission.missionData->mapWidth)
*x = (rand() % gMission.missionData->mapWidth) + (XMAX -
gMission.
missionData->
mapWidth)
/ 2;
else
*x = rand() % XMAX;
if (gMission.missionData->mapHeight)
*y = (rand() % gMission.missionData->mapHeight) + (YMAX -
gMission.
missionData->
mapHeight)
/ 2;
else
*y = rand() % YMAX;
}
void GuessPixelCoords(int *x, int *y)
{
if (gMission.missionData->mapWidth)
*x = (rand() %
(gMission.missionData->mapWidth * TILE_WIDTH)) +
(XMAX -
gMission.missionData->mapWidth) * TILE_WIDTH / 2;
else
*x = rand() % (XMAX * TILE_WIDTH);
if (gMission.missionData->mapHeight)
*y = (rand() %
(gMission.missionData->mapHeight * TILE_HEIGHT)) +
(YMAX -
gMission.missionData->mapHeight) * TILE_HEIGHT / 2;
else
*y = rand() % (YMAX * TILE_HEIGHT);
}
static void Grow(int x, int y, int d, int length)
{
int l;
if (length <= 0)
return;
switch (d) {
case 0:
if (y < 3 ||
iMap(x - 1, y - 1) != 0 ||
iMap(x + 1, y - 1) != 0 ||
iMap(x - 1, y - 2) != 0 ||
iMap(x, y - 2) != 0 || iMap(x + 1, y - 2) != 0)
return;
y--;
break;
case 1:
if (x > XMAX - 3 ||
iMap(x + 1, y - 1) != 0 ||
iMap(x + 1, y + 1) != 0 ||
iMap(x + 2, y - 1) != 0 ||
iMap(x + 2, y) != 0 || iMap(x + 2, y + 1) != 0)
return;
x++;
break;
case 2:
if (y > YMAX - 3 ||
iMap(x - 1, y + 1) != 0 ||
iMap(x + 1, y + 1) != 0 ||
iMap(x - 1, y + 2) != 0 ||
iMap(x, y + 2) != 0 || iMap(x + 1, y + 2) != 0)
return;
y++;
break;
case 4:
if (x < 3 ||
iMap(x - 1, y - 1) != 0 ||
iMap(x - 1, y + 1) != 0 ||
iMap(x - 2, y - 1) != 0 ||
iMap(x - 2, y) != 0 || iMap(x - 2, y + 1) != 0)
return;
x--;
break;
}
iMap(x, y) = MAP_WALL;
length--;
if (length > 0 && (rand() & 3) == 0) {
l = rand() % length;
Grow(x, y, rand() & 3, l);
length -= l;
}
Grow(x, y, d, length);
}
static int ValidStart(int x, int y)
{
if (x == 0 || y == 0 || x == XMAX - 1 || y == YMAX - 1)
return YES;
if (iMap(x - 1, y - 1) == 0 &&
iMap(x, y - 1) == 0 &&
iMap(x + 1, y - 1) == 0 &&
iMap(x - 1, y) == 0 &&
iMap(x, y) == 0 &&
iMap(x + 1, y) == 0 &&
iMap(x - 1, y + 1) == 0 &&
iMap(x, y + 1) == 0 && iMap(x + 1, y + 1) == 0)
return YES;
return NO;
}
static int BuildWall(int wallLength)
{
int x, y;
GuessCoords(&x, &y);
if (ValidStart(x, y)) {
iMap(x, y) = MAP_WALL;
Grow(x, y, rand() & 3, wallLength);
return 1;
}
return 0;
}
void MakeRoom(int xOrigin, int yOrigin, int width, int height, int doors,
int access)
{
int x, y;
for (y = yOrigin; y <= yOrigin + height; y++) {
iMap(xOrigin, y) = MAP_WALL;
iMap(xOrigin + width, y) = MAP_WALL;
}
for (x = xOrigin + 1; x < xOrigin + width; x++) {
iMap(x, yOrigin) = MAP_WALL;
iMap(x, yOrigin + height) = MAP_WALL;
for (y = yOrigin + 1; y < yOrigin + height; y++)
iMap(x, y) = MAP_ROOM | access;
}
if (doors & 1)
iMap(xOrigin, yOrigin + height / 2) = MAP_DOOR;
if (doors & 2)
iMap(xOrigin + width, yOrigin + height / 2) = MAP_DOOR;
if (doors & 4)
iMap(xOrigin + width / 2, yOrigin) = MAP_DOOR;
if (doors & 8)
iMap(xOrigin + width / 2, yOrigin + height) = MAP_DOOR;
}
int AreaClear(int xOrigin, int yOrigin, int width, int height)
{
int x, y;
if (xOrigin < 0 || yOrigin < 0 ||
xOrigin + width >= XMAX || yOrigin + height >= YMAX)
return NO;
for (y = yOrigin; y <= yOrigin + height; y++)
for (x = xOrigin; x <= xOrigin + width; x++)
if (iMap(x, y) != MAP_FLOOR)
return NO;
return YES;
}
static int BuildRoom(void)
{
int x, y, w, h, access = 0;
GuessCoords(&x, &y);
w = rand() % 6 + 5;
h = rand() % 6 + 5;
if (AreaClear(x - 1, y - 1, w + 2, h + 2)) {
switch (rand() % 20) {
case 0:
if (accessCount >= 4) {
access = MAP_ACCESS_RED;
accessCount = 5;
break;
}
case 1:
case 2:
if (accessCount >= 3) {
access = MAP_ACCESS_BLUE;
if (accessCount < 4)
accessCount = 4;
break;
}
case 3:
case 4:
case 5:
if (accessCount >= 2) {
access = MAP_ACCESS_GREEN;
if (accessCount < 3)
accessCount = 3;
break;
}
case 6:
case 7:
case 8:
case 9:
if (accessCount >= 1) {
access = MAP_ACCESS_YELLOW;
if (accessCount < 2)
accessCount = 2;
break;
}
}
MakeRoom(x, y, w, h, rand() % 15 + 1, access);
if (accessCount < 1)
accessCount = 1;
return 1;
}
return 0;
}
static void MakeSquare(int xOrigin, int yOrigin, int width, int height)
{
int x, y;
for (x = xOrigin; x <= xOrigin + width; x++) {
for (y = yOrigin; y <= yOrigin + height; y++)
iMap(x, y) = MAP_SQUARE;
}
}
static int BuildSquare(void)
{
int x, y, w, h;
GuessCoords(&x, &y);
w = rand() % 9 + 7;
h = rand() % 9 + 7;
if (AreaClear(x - 1, y - 1, w + 2, h + 2)) {
MakeSquare(x, y, w, h);
return 1;
}
return 0;
}
static int W(int x, int y)
{
return (x >= 0 && y >= 0 && x < XMAX && y < YMAX &&
iMap(x, y) == MAP_WALL);
}
static int GetWallPic(int x, int y)
{
if (W(x - 1, y) && W(x + 1, y) && W(x, y + 1) && W(x, y - 1))
return WALL_CROSS;
if (W(x - 1, y) && W(x + 1, y) && W(x, y + 1))
return WALL_TOP_T;
if (W(x - 1, y) && W(x + 1, y) && W(x, y - 1))
return WALL_BOTTOM_T;
if (W(x - 1, y) && W(x, y + 1) && W(x, y - 1))
return WALL_RIGHT_T;
if (W(x + 1, y) && W(x, y + 1) && W(x, y - 1))
return WALL_LEFT_T;
if (W(x + 1, y) && W(x, y + 1))
return WALL_TOPLEFT;
if (W(x + 1, y) && W(x, y - 1))
return WALL_BOTTOMLEFT;
if (W(x - 1, y) && W(x, y + 1))
return WALL_TOPRIGHT;
if (W(x - 1, y) && W(x, y - 1))
return WALL_BOTTOMRIGHT;
if (W(x - 1, y) && W(x + 1, y))
return WALL_HORIZONTAL;
if (W(x, y + 1) && W(x, y - 1))
return WALL_VERTICAL;
if (W(x, y + 1))
return WALL_TOP;
if (W(x, y - 1))
return WALL_BOTTOM;
if (W(x + 1, y))
return WALL_LEFT;
if (W(x - 1, y))
return WALL_RIGHT;
return WALL_SINGLE;
}
static void FixMap(int floor, int room, int wall)
{
int x, y, i;
for (x = 0; x < XMAX; x++)
for (y = 0; y < YMAX; y++) {
switch (iMap(x, y) & MAP_MASKACCESS) {
case MAP_FLOOR:
case MAP_SQUARE:
if (y > 0
&& (Map(x, y - 1).flags & NO_SEE) != 0)
Map(x, y).pic = cFloorPics[floor]
[FLOOR_SHADOW];
else
Map(x, y).pic = cFloorPics[floor]
[FLOOR_NORMAL];
break;
case MAP_ROOM:
case MAP_DOOR:
if (y > 0
&& (Map(x, y - 1).flags & NO_SEE) != 0)
Map(x, y).pic = cRoomPics[room]
[ROOMFLOOR_SHADOW];
else
Map(x, y).pic = cRoomPics[room]
[ROOMFLOOR_NORMAL];
break;
case MAP_WALL:
Map(x, y).pic =
cWallPics[wall][GetWallPic(x, y)];
Map(x, y).flags =
NO_WALK | NO_SEE | IS_WALL;
break;
case MAP_NOTHING:
Map(x, y).flags = NO_WALK | NO_SEE;
break;
}
}
for (i = 0; i < 50; i++) {
x = (rand() % XMAX) & 0xFFFFFE;
y = (rand() % YMAX) & 0xFFFFFE;
if (Map(x, y).flags == 0 &&
Map(x, y).pic == cFloorPics[floor][FLOOR_NORMAL])
Map(x, y).pic = PIC_DRAINAGE;
}
for (i = 0; i < 100; i++) {
x = rand() % XMAX;
y = rand() % YMAX;
if (Map(x, y).flags == 0 &&
Map(x, y).pic == cFloorPics[floor][FLOOR_NORMAL])
Map(x, y).pic = cFloorPics[floor][FLOOR_1];
}
for (i = 0; i < 150; i++) {
x = rand() % XMAX;
y = rand() % YMAX;
if (Map(x, y).flags == 0 &&
Map(x, y).pic == cFloorPics[floor][FLOOR_NORMAL])
Map(x, y).pic = cFloorPics[floor][FLOOR_2];
}
}
void ChangeFloor(int x, int y, int normal, int shadow)
{
switch (iMap(x, y) & MAP_MASKACCESS) {
case MAP_FLOOR:
case MAP_SQUARE:
case MAP_ROOM:
if (Map(x, y).pic == PIC_DRAINAGE)
return;
if (y > 0 && (Map(x, y - 1).flags & NO_SEE) != 0)
Map(x, y).pic = shadow;
else
Map(x, y).pic = normal;
break;
}
}
/*
static int CheckForItems( int x, int y, int w, int h )
{
TTileItem item;
item.w = w;
item.h = h;
return CheckTileItemCollision( &item, x, y, TILEITEM_IMPASSABLE) != NULL;
}
*/
static int OneWall(int x, int y)
{
int count = 0;
if (x > 0 && y > 0 && x < XMAX - 1 && y < YMAX - 1) {
if ((Map(x - 1, y).flags & NO_WALK) != 0)
count++;
if ((Map(x + 1, y).flags & NO_WALK) != 0)
count++;
if ((Map(x, y - 1).flags & NO_WALK) != 0)
count++;
if ((Map(x, y + 1).flags & NO_WALK) != 0)
count++;
}
return (count == 1);
}
static int OneWallOrMore(int x, int y)
{
int count = 0;
if (x > 0 && y > 0 && x < XMAX - 1 && y < YMAX - 1) {
if ((Map(x - 1, y).flags & NO_WALK) != 0)
count++;
if ((Map(x + 1, y).flags & NO_WALK) != 0)
count++;
if ((Map(x, y - 1).flags & NO_WALK) != 0)
count++;
if ((Map(x, y + 1).flags & NO_WALK) != 0)
count++;
}
return (count >= 1);
}
static int NoWalls(int x, int y)
{
if (x > 0 && y > 0 && x < XMAX - 1 && y < YMAX - 1) {
if ((Map(x - 1, y).flags & NO_WALK) != 0)
return 0;
if ((Map(x + 1, y).flags & NO_WALK) != 0)
return 0;
if ((Map(x, y - 1).flags & NO_WALK) != 0)
return 0;
if ((Map(x, y + 1).flags & NO_WALK) != 0)
return 0;
if ((Map(x - 1, y - 1).flags & NO_WALK) != 0)
return 0;
if ((Map(x + 1, y + 1).flags & NO_WALK) != 0)
return 0;
if ((Map(x + 1, y - 1).flags & NO_WALK) != 0)
return 0;
if ((Map(x - 1, y + 1).flags & NO_WALK) != 0)
return 0;
return 1;
}
return 0;
}
static int PlaceOneObject(int x, int y, TMapObject * mo, int extraFlags)
{
int f = mo->flags;
int oFlags = 0;
int yCoord;
int tileFlags = 0;
if (Map(x, y).flags != 0 ||
Map(x, y).things != NULL || (iMap(x, y) & MAP_LEAVEFREE) != 0)
return 0;
if ((f & MAPOBJ_ROOMONLY) != 0 &&
(iMap(x, y) & MAP_MASKACCESS) != MAP_ROOM)
return 0;
if ((f & MAPOBJ_NOTINROOM) != 0 &&
(iMap(x, y) & MAP_MASKACCESS) == MAP_ROOM)
return 0;
if ((f & MAPOBJ_ON_WALL) != 0 &&
(iMap(x, y - 1) & MAP_MASKACCESS) != MAP_WALL)
return 0;
if ((f & MAPOBJ_FREEINFRONT) != 0 &&
(iMap(x, y + 1) & MAP_MASKACCESS) != MAP_ROOM &&
(iMap(x, y + 1) & MAP_MASKACCESS) != MAP_FLOOR)
return 0;
if ((f & MAPOBJ_ONEWALL) != 0 && !OneWall(x, y))
return 0;
if ((f & MAPOBJ_ONEWALLPLUS) != 0 && !OneWallOrMore(x, y))
return 0;
if ((f & MAPOBJ_NOWALLS) != 0 && !NoWalls(x, y))
return 0;
if ((f & MAPOBJ_FREEINFRONT) != 0)
iMap(x, y) |= MAP_LEAVEFREE;
if ((f & MAPOBJ_EXPLOSIVE) != 0)
oFlags |= OBJFLAG_EXPLOSIVE;
if ((f & MAPOBJ_FLAMMABLE) != 0)
oFlags |= OBJFLAG_FLAMMABLE;
if ((f & MAPOBJ_POISONOUS) != 0)
oFlags |= OBJFLAG_POISONOUS;
if ((f & MAPOBJ_QUAKE) != 0)
oFlags |= OBJFLAG_QUAKE;
yCoord = y * TILE_HEIGHT;
if ((f & MAPOBJ_ON_WALL) != 0)
yCoord--;
else
yCoord += TILE_HEIGHT / 2;
if ((f & MAPOBJ_IMPASSABLE) != 0)
tileFlags |= TILEITEM_IMPASSABLE;
if ((f & MAPOBJ_CANBESHOT) != 0)
tileFlags |= TILEITEM_CAN_BE_SHOT;
AddDestructibleObject((x * TILE_WIDTH + TILE_WIDTH / 2) << 8,
yCoord << 8,
mo->width, mo->height,
&cGeneralPics[mo->pic],
&cGeneralPics[mo->wreckedPic],
(int)(mo->structure),
oFlags, tileFlags | extraFlags);
return 1;
}
int HasHighAccess(void)
{
return accessCount > 1;
}
int IsHighAccess(int x, int y)
{
return (iMap(x / TILE_WIDTH, y / TILE_HEIGHT) & MAP_ACCESSBITS) !=
0;
}
static void PlaceObject(int x, int y, int index)
{
TMapObject *mo = gMission.mapObjects[index];
PlaceOneObject(x, y, mo, 0);
}
static int PlaceCollectible(int objective)
{
int access =
(gMission.missionData->objectives[objective].
flags & OBJECTIVE_HIACCESS) != 0 && accessCount > 1;
int noaccess =
(gMission.missionData->objectives[objective].
flags & OBJECTIVE_NOACCESS) != 0;
int x, y;
int i = (noaccess || access) ? 1000 : 100;
while (i) {
GuessPixelCoords(&x, &y);
if (!CheckWall(x << 8, y << 8, 4, 3)) {
if ((!access
|| (iMap(x / TILE_WIDTH, y / TILE_HEIGHT) &
MAP_ACCESSBITS) != 0) && (!noaccess
||
(iMap
(x /
TILE_WIDTH,
y /
TILE_HEIGHT) &
MAP_ACCESSBITS)
== 0)) {
AddObject(x << 8, y << 8, 3, 2,
&cGeneralPics[gMission.
objectives
[objective].
pickupItem],
OBJ_JEWEL,
TILEITEM_CAN_BE_TAKEN |
(int)ObjectiveToTileItem(objective));
return 1;
}
}
i--;
}
return 0;
}
static int PlaceBlowup(int objective)
{
int access =
(gMission.missionData->objectives[objective].
flags & OBJECTIVE_HIACCESS) != 0 && accessCount > 1;
int noaccess =
(gMission.missionData->objectives[objective].
flags & OBJECTIVE_NOACCESS) != 0;
int i = (noaccess || access) ? 1000 : 100;
int x, y;
while (i > 0) {
GuessCoords(&x, &y);
if ((!access || (iMap(x, y) >> 8) != 0) &&
(!noaccess || (iMap(x, y) >> 8) == 0)) {
if (PlaceOneObject(x, y,
gMission.objectives[objective].
blowupObject,
ObjectiveToTileItem(objective)))
return 1;
}
i--;
}
return 0;
}
static void PlaceCard(int pic, int card, int access)
{
int x, y;
while (1) {
GuessCoords(&x, &y);
if (y < YMAX - 1 &&
Map(x, y).flags == 0 &&
Map(x, y).things == NULL &&
(iMap(x, y) & 0xF00) == access &&
(iMap(x, y) & MAP_MASKACCESS) == MAP_ROOM &&
Map(x, y + 1).flags == 0 &&
Map(x, y + 1).things == NULL) {
AddObject((x * TILE_WIDTH + TILE_WIDTH / 2) << 8,
(y * TILE_HEIGHT + TILE_HEIGHT / 2) << 8,
9, 5,
&cGeneralPics[gMission.keyPics[pic]],
card, (int)TILEITEM_CAN_BE_TAKEN);
return;
}
}
}
/*
void PlacePuzzlePiece( int index )
{
int x, y;
while (1)
{
GuessCoords( &x, &y);
if (y < YMAX-1 &&
Map( x, y).flags == 0 &&
Map( x, y).things == NULL &&
Map( x, y+1).flags == 0)
{
AddPuzzlePiece( (x*TILE_WIDTH + TILE_WIDTH/2) << 8,
(y*TILE_HEIGHT + TILE_HEIGHT/2) << 8,
index);
return;
}
}
}
*/
static void VertDoor(int x, int y, int flags)
{
TTrigger *t;
TWatch *w;
TCondition *c;
TAction *a;
int pic;
switch (flags) {
case FLAGS_KEYCARD_RED:
pic = gMission.doorPics[4].vertPic;
break;
case FLAGS_KEYCARD_BLUE:
pic = gMission.doorPics[3].vertPic;
break;
case FLAGS_KEYCARD_GREEN:
pic = gMission.doorPics[2].vertPic;
break;
case FLAGS_KEYCARD_YELLOW:
pic = gMission.doorPics[1].vertPic;
break;
default:
pic = gMission.doorPics[0].vertPic;
break;
}
Map(x, y).pic = pic;
Map(x, y).flags = NO_SEE | NO_WALK | NO_SHOOT | OFFSET_PIC;
Map(x - 1, y).flags |= TILE_TRIGGER;
Map(x + 1, y).flags |= TILE_TRIGGER;
// Create the watch responsible for closing the door
w = AddWatch(3, 5);
// The conditions are that the tile above, at and below the door are empty
c = w->conditions;
c[0].condition = CONDITION_TILECLEAR;
c[0].x = x - 1;
c[0].y = y;
c[1].condition = CONDITION_TILECLEAR;
c[1].x = x;
c[1].y = y;
c[2].condition = CONDITION_TILECLEAR;
c[2].x = x + 1;
c[2].y = y;
// Now the actions of the watch once it's triggered
a = w->actions;
// Deactivate itself
a[0].action = ACTION_DEACTIVATEWATCH;
a[0].x = w->index;
// Reenable trigger to the left of the door
a[1].action = ACTION_SETTRIGGER;
a[1].x = x - 1;
a[1].y = y;
// Close door
a[2].action = ACTION_CHANGETILE;
a[2].x = x;
a[2].y = y;
a[2].tilePic = pic;
a[2].tileFlags = NO_SEE | NO_WALK | NO_SHOOT | OFFSET_PIC;
// Reenable trigger to the right of the door
a[3].action = ACTION_SETTRIGGER;
a[3].x = x + 1;
a[3].y = y;
a[4].action = ACTION_SOUND;
a[4].x = x * TILE_WIDTH;
a[4].y = y * TILE_HEIGHT;
a[4].tileFlags = SND_DOOR;
// Add trigger to the left of the door
t = AddTrigger(x - 1, y, 5);
t->flags = flags;
a = t->actions;
// Enable the watch to close the door
a[0].action = ACTION_ACTIVATEWATCH;
a[0].x = w->index;
// Deactivate itself
a[1].action = ACTION_CLEARTRIGGER;
a[1].x = t->x;
a[1].y = t->y;
// Open door
a[2].action = ACTION_CHANGETILE;
a[2].x = x;
a[2].y = y;
a[2].tilePic = gMission.doorPics[5].vertPic;
a[2].tileFlags = OFFSET_PIC;
// Deactivate other trigger
a[3].action = ACTION_CLEARTRIGGER;
a[3].x = x + 1;
a[3].y = y;
a[4].action = ACTION_SOUND;
a[4].x = x * TILE_WIDTH;
a[4].y = y * TILE_HEIGHT;
a[4].tileFlags = SND_DOOR;
// Add trigger to the right of the door with identical actions as this one
t = AddTrigger(x + 1, y, 5);
t->flags = flags;
memcpy(t->actions, a, sizeof(TAction) * 5);
}
static void HorzDoor(int x, int y, int floor, int room, int flags)
{
TTrigger *t;
TWatch *w;
TCondition *c;
TAction *a;
int pic;
switch (flags) {
case FLAGS_KEYCARD_RED:
pic = gMission.doorPics[4].horzPic;
break;
case FLAGS_KEYCARD_BLUE:
pic = gMission.doorPics[3].horzPic;
break;
case FLAGS_KEYCARD_GREEN:
pic = gMission.doorPics[2].horzPic;
break;
case FLAGS_KEYCARD_YELLOW:
pic = gMission.doorPics[1].horzPic;
break;
default:
pic = gMission.doorPics[0].horzPic;
break;
}
Map(x, y).pic = pic;
Map(x, y).flags = NO_SEE | NO_WALK | NO_SHOOT | OFFSET_PIC;
Map(x, y - 1).flags |= TILE_TRIGGER;
Map(x, y + 1).flags |= TILE_TRIGGER;
if (iMap(x, y + 1) == MAP_FLOOR)
Map(x, y + 1).pic = cFloorPics[floor][FLOOR_SHADOW];
else
Map(x, y + 1).pic = cRoomPics[room][ROOMFLOOR_SHADOW];
// Create the watch responsible for closing the door
w = AddWatch(3, 5);
// The conditions are that the tile above, at and below the door are empty
c = w->conditions;
c[0].condition = CONDITION_TILECLEAR;
c[0].x = x;
c[0].y = y - 1;
c[1].condition = CONDITION_TILECLEAR;
c[1].x = x;