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|
// passage.c
// Egoboo, Copyright (C) 2000 Aaron Bishop
#include "egoboo.h"
//--------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------
int open_passage(int passage)
{
// ZZ> This function makes a passage passable
int x, y;
unsigned int fan;
int useful;
useful = FALSE;
if(passage < numpassage)
{
useful = (passopen[passage]==FALSE);
passopen[passage] = TRUE;
y = passtly[passage];
while(y <= passbry[passage])
{
x = passtlx[passage];
while(x <= passbrx[passage])
{
fan = meshfanstart[y]+x;
meshfx[fan] = meshfx[fan]&(255-MESHFXWALL-MESHFXIMPASS-MESHFXSLIPPY);
x++;
}
y++;
}
}
return useful;
}
//--------------------------------------------------------------------------------------------
int break_passage(int passage, unsigned short starttile, unsigned short frames,
unsigned short become, unsigned char meshfxor)
{
// ZZ> This function breaks the tiles of a passage if there is a character standing
// on 'em... Turns the tiles into damage terrain if it reaches last frame.
int x, y;
unsigned short tile, endtile;
unsigned int fan;
int useful, character;
endtile = starttile+frames-1;
useful = FALSE;
if(passage < numpassage)
{
character = 0;
while(character < MAXCHR)
{
if(chron[character] && !chrinpack[character])
{
if(chrweight[character] > 20 && chrflyheight[character] == 0 && chrzpos[character] < (chrlevel[character]+20) && chrattachedto[character]==MAXCHR)
{
x = chrxpos[character]; x = x>>7;
if(x>=passtlx[passage] && x<=passbrx[passage])
{
y = chrypos[character]; y = y>>7;
if(y>=passtly[passage] && y<=passbry[passage])
{
// The character is in the passage, so might need to break...
fan = meshfanstart[y]+x;
tile = meshtile[fan];
if(tile >= starttile && tile < endtile)
{
// Remember where the hit occured...
valuetmpx = chrxpos[character];
valuetmpy = chrypos[character];
useful = TRUE;
// Change the tile
tile++;
if(tile == endtile)
{
meshfx[fan]|=meshfxor;
if(become != 0)
{
tile = become;
}
}
meshtile[fan] = tile;
}
}
}
}
}
character++;
}
}
return useful;
}
//--------------------------------------------------------------------------------------------
void flash_passage(int passage, unsigned char color)
{
// ZZ> This function makes a passage flash white
int x, y, cnt, numvert;
unsigned int fan, vert;
if(passage < numpassage)
{
y = passtly[passage];
while(y <= passbry[passage])
{
x = passtlx[passage];
while(x <= passbrx[passage])
{
fan = meshfanstart[y]+x;
vert = meshvrtstart[fan];
cnt = 0;
numvert = meshcommandnumvertices[meshtype[fan]];
while(cnt < numvert)
{
meshvrta[vert] = color;
vert++;
cnt++;
}
x++;
}
y++;
}
}
}
//--------------------------------------------------------------------------------------------
unsigned char find_tile_in_passage(int passage, int tiletype)
{
// ZZ> This function finds the next tile in the passage, valuetmpx and valuetmpy
// must be set first, and are set on a find... Returns TRUE or FALSE
// depending on if it finds one or not
int x, y;
unsigned int fan;
if(passage < numpassage)
{
// Do the first row
x = valuetmpx >> 7;
y = valuetmpy >> 7;
if(x < passtlx[passage]) x = passtlx[passage];
if(y < passtly[passage]) y = passtly[passage];
if(y < passbry[passage])
{
while(x <= passbrx[passage])
{
fan = meshfanstart[y]+x;
if(meshtile[fan] == tiletype)
{
valuetmpx = (x << 7) + 64;
valuetmpy = (y << 7) + 64;
return TRUE;
}
x++;
}
y++;
}
// Do all remaining rows
while(y <= passbry[passage])
{
x = passtlx[passage];
while(x <= passbrx[passage])
{
fan = meshfanstart[y]+x;
if(meshtile[fan] == tiletype)
{
valuetmpx = (x << 7) + 64;
valuetmpy = (y << 7) + 64;
return TRUE;
}
x++;
}
y++;
}
}
return FALSE;
}
//--------------------------------------------------------------------------------------------
unsigned short who_is_blocking_passage(int passage)
{
// ZZ> This function returns MAXCHR if there is no character in the passage,
// otherwise the index of the first character found is returned...
// Finds living ones, then items and corpses
float tlx, tly, brx, bry;
unsigned short character, foundother;
float bumpsize;
// Passage area
tlx = (passtlx[passage]<<7)-CLOSETOLERANCE;
tly = (passtly[passage]<<7)-CLOSETOLERANCE;
brx = ((passbrx[passage]+1)<<7)+CLOSETOLERANCE;
bry = ((passbry[passage]+1)<<7)+CLOSETOLERANCE;
// Look at each character
foundother = MAXCHR;
character = 0;
while(character < MAXCHR)
{
if(chron[character])
{
bumpsize = chrbumpsize[character];
if((!chrinpack[character]) && chrattachedto[character]==MAXCHR && bumpsize!=0)
{
if(chrxpos[character]>tlx-bumpsize && chrxpos[character]<brx+bumpsize)
{
if(chrypos[character]>tly-bumpsize && chrypos[character]<bry+bumpsize)
{
if(chralive[character] && chrisitem[character]==FALSE)
{
// Found a live one
return character;
}
else
{
// Found something else
foundother = character;
}
}
}
}
}
character++;
}
// No characters found
return foundother;
}
//--------------------------------------------------------------------------------------------
unsigned short who_is_blocking_passage_ID(int passage, unsigned int idsz)
{
// ZZ> This function returns MAXCHR if there is no character in the passage who
// have an item with the given ID. Otherwise, the index of the first character
// found is returned... Only finds living characters...
float tlx, tly, brx, bry;
unsigned short character, sTmp;
float bumpsize;
// Passage area
tlx = (passtlx[passage]<<7)-CLOSETOLERANCE;
tly = (passtly[passage]<<7)-CLOSETOLERANCE;
brx = ((passbrx[passage]+1)<<7)+CLOSETOLERANCE;
bry = ((passbry[passage]+1)<<7)+CLOSETOLERANCE;
// Look at each character
character = 0;
while(character < MAXCHR)
{
if(chron[character])
{
bumpsize = chrbumpsize[character];
if((!chrisitem[character]) && bumpsize!=0 && chrinpack[character]==0)
{
if(chrxpos[character]>tlx-bumpsize && chrxpos[character]<brx+bumpsize)
{
if(chrypos[character]>tly-bumpsize && chrypos[character]<bry+bumpsize)
{
if(chralive[character])
{
// Found a live one... Does it have a matching item?
// Check the pack
sTmp = chrnextinpack[character];
while(sTmp != MAXCHR)
{
if(capidsz[chrmodel[sTmp]][IDSZPARENT]==idsz || capidsz[chrmodel[sTmp]][IDSZTYPE]==idsz)
{
// It has the item...
return character;
}
sTmp = chrnextinpack[sTmp];
}
// Check left hand
sTmp = chrholdingwhich[character][0];
if(sTmp != MAXCHR)
{
sTmp = chrmodel[sTmp];
if(capidsz[sTmp][IDSZPARENT]==idsz || capidsz[sTmp][IDSZTYPE]==idsz)
{
// It has the item...
return character;
}
}
// Check right hand
sTmp = chrholdingwhich[character][1];
if(sTmp != MAXCHR)
{
sTmp = chrmodel[sTmp];
if(capidsz[sTmp][IDSZPARENT]==idsz || capidsz[sTmp][IDSZTYPE]==idsz)
{
// It has the item...
return character;
}
}
}
}
}
}
}
character++;
}
// No characters found
return MAXCHR;
}
//--------------------------------------------------------------------------------------------
int close_passage(int passage)
{
// ZZ> This function makes a passage impassable, and returns TRUE if it isn't blocked
int x, y, cnt;
float tlx, tly, brx, bry;
unsigned int fan;
unsigned short character;
float bumpsize;
unsigned short numcrushed;
unsigned short crushedcharacters[MAXCHR];
if((passmask[passage]&(MESHFXIMPASS|MESHFXWALL)))
{
// Make sure it isn't blocked
tlx = (passtlx[passage]<<7)-CLOSETOLERANCE;
tly = (passtly[passage]<<7)-CLOSETOLERANCE;
brx = ((passbrx[passage]+1)<<7)+CLOSETOLERANCE;
bry = ((passbry[passage]+1)<<7)+CLOSETOLERANCE;
numcrushed = 0;
character = 0;
while(character < MAXCHR)
{
bumpsize = chrbumpsize[character];
if(chron[character]&&(!chrinpack[character])&&chrattachedto[character]==MAXCHR&&chrbumpsize[character]!=0)
{
if(chrxpos[character]>tlx-bumpsize && chrxpos[character]<brx+bumpsize)
{
if(chrypos[character]>tly-bumpsize && chrypos[character]<bry+bumpsize)
{
if(chrcanbecrushed[character]==FALSE)
{
return FALSE;
}
else
{
crushedcharacters[numcrushed] = character;
numcrushed++;
}
}
}
}
character++;
}
// Crush any unfortunate characters
cnt = 0;
while(cnt < numcrushed)
{
character = crushedcharacters[cnt];
chralert[character] |= ALERTIFCRUSHED;
cnt++;
}
}
// Close it off
if(passage < numpassage)
{
passopen[passage] = FALSE;
y = passtly[passage];
while(y <= passbry[passage])
{
x = passtlx[passage];
while(x <= passbrx[passage])
{
fan = meshfanstart[y]+x;
meshfx[fan] = meshfx[fan]|passmask[passage];
x++;
}
y++;
}
}
return TRUE;
}
//--------------------------------------------------------------------------------------------
void clear_passages()
{
// ZZ> This function clears the passage list ( for doors )
numpassage = 0;
numshoppassage = 0;
}
//--------------------------------------------------------------------------------------------
void add_shop_passage(int owner, int passage)
{
// ZZ> This function creates a shop passage
if(passage < numpassage && numshoppassage < MAXPASS)
{
// The passage exists...
shoppassage[numshoppassage] = passage;
shopowner[numshoppassage] = owner; // Assume the owner is alive
numshoppassage++;
}
}
//--------------------------------------------------------------------------------------------
void add_passage(int tlx, int tly, int brx, int bry, unsigned char open, unsigned char mask)
{
// ZZ> This function creates a passage area
if(tlx < 0) tlx = 0;
if(tlx > meshsizex-1) tlx = meshsizex-1;
if(tly < 0) tly = 0;
if(tly > meshsizey-1) tly = meshsizey-1;
if(brx < 0) brx = 0;
if(brx > meshsizex-1) brx = meshsizex-1;
if(bry < 0) bry = 0;
if(bry > meshsizey-1) bry = meshsizey-1;
if(numpassage < MAXPASS)
{
passtlx[numpassage] = tlx;
passtly[numpassage] = tly;
passbrx[numpassage] = brx;
passbry[numpassage] = bry;
passmask[numpassage] = mask;
passtracktype[numpassage] = IGNOTRACK; // Interactive music
passtrackcount[numpassage] = 1; // Interactive music
numpassage++;
if(open)
passopen[numpassage-1]=TRUE;
else
passopen[numpassage-1]=FALSE;
}
}
//--------------------------------------------------------------------------------------------
void setup_passage(char *modname)
{
// ZZ> This function reads the passage file
char newloadname[256];
unsigned char cTmp;
int tlx, tly, brx, bry;
unsigned char open, mask;
FILE *fileread;
// Reset all of the old passages
clear_passages();
// Load the file
make_newloadname(modname, FILENAME("/gamedat/passage.txt"), newloadname);
fileread = fopen(newloadname, "r");
if(fileread)
{
while(goto_colon_yesno(fileread))
{
fscanf(fileread, "%d%d%d%d", &tlx, &tly, &brx, &bry);
cTmp = get_first_letter(fileread);
open = FALSE;
if(cTmp == 'T' || cTmp == 't') open = TRUE;
cTmp = get_first_letter(fileread);
mask = MESHFXIMPASS|MESHFXWALL;
if(cTmp == 'T' || cTmp == 't') mask = MESHFXIMPASS;
cTmp = get_first_letter(fileread);
if(cTmp == 'T' || cTmp == 't') mask = MESHFXSLIPPY;
add_passage(tlx, tly, brx, bry, open, mask);
}
fclose(fileread);
}
}
|
