1 line
3.3 KiB
C
1 line
3.3 KiB
C
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#include "wolfdef.h"
#define PWALLSPEED 4 /* Micropixels per 60th of a second */
pushwall_t PushWallRec; /* Record for the single pushwall in progress */
/**********************************
Set pwallychange and pwallxchange
Uses pwallpos,pwalldir
**********************************/
void SetPWallChange(void)
{
Word pos;
pos = PushWallRec.pwallpos&(FRACUNIT-1); /* Get the pixel fraction */
PushWallRec.pwallxchange = 0; /* No motion yet */
PushWallRec.pwallychange = 0;
switch (PushWallRec.pwalldir) { /* Which way? */
case CD_NORTH:
PushWallRec.pwallychange = -pos; /* Y motion */
return;
case CD_EAST:
PushWallRec.pwallxchange = pos; /* X motion */
return;
case CD_SOUTH:
PushWallRec.pwallychange = pos; /* Y motion */
return;
case CD_WEST:
PushWallRec.pwallxchange = -pos; /* X motion */
}
}
/**********************************
Marks the dest tile as blocked and begins a push wall sequence
Uses pwallx,pwally,pwalldir
**********************************/
void PushWallOne(void)
{
PushWallRec.pwallcheckx = PushWallRec.pwallx;
PushWallRec.pwallchecky = PushWallRec.pwally;
switch (PushWallRec.pwalldir) {
case CD_NORTH:
PushWallRec.pwallchecky--;
break;
case CD_EAST:
PushWallRec.pwallcheckx++;
break;
case CD_SOUTH:
PushWallRec.pwallchecky++;
break;
case CD_WEST:
PushWallRec.pwallcheckx--;
}
tilemap[PushWallRec.pwallchecky][PushWallRec.pwallcheckx] |= TI_BLOCKMOVE | TI_BLOCKSIGHT;
StartPushWall(); /* let the refresh do some junk*/
}
/**********************************
Initiate a pushwall sequence
Call with x,y,dir of wall to push
**********************************/
void PushWall(Word x,Word y,Word dir)
{
PlaySound(SND_PWALL); /* Play the wall sound */
PushWallRec.pwallx = x; /* Save the x,y in my globals */
PushWallRec.pwally = y;
PushWallRec.pwalldir = dir; /* Save the wall direction */
PushWallOne(); /* Initiate the animation */
PushWallRec.pwallcount = 2; /* Move two cells */
++gamestate.secretcount; /* Secret area found */
PushWallRec.pwallpos = PWALLSPEED/2; /* Begin the move */
/* mark the segs that are being moved */
tilemap[y][x] &= ~TI_PUSHWALL; /* Clear the pushwall bit */
SetPWallChange(); /* Set pwallchange */
}
/**********************************
Continue any pushwall animations, called by the main loop
**********************************/
void MovePWalls (void)
{
if (!PushWallRec.pwallcount) { /* Any walls to push? */
return; /* Nope, get out */
}
PushWallRec.pwallpos += PWALLSPEED*TicCount; /* Move the wall a little */
SetPWallChange(); /* Set the wall for the renderer */
if (PushWallRec.pwallpos<256) { /* Crossed a tile yet? */
return; /* Exit now */
}
PushWallRec.pwallpos -= 256; /* Mark as crossed */
/* the tile can now be walked into */
tilemap[PushWallRec.pwally][PushWallRec.pwallx] &= ~TI_BLOCKMOVE; /* The movable block is gone */
AdvancePushWall(); /* Remove the bsp seg */
if (!--PushWallRec.pwallcount) { /* Been pushed 2 blocks?*/
StopSound(SND_PWALL); /* Play the wall sound */
PlaySound(SND_PWALL2); /* Play the wall stop sound */
return; /* Don't do this anymore! */
}
PushWallRec.pwallx = PushWallRec.pwallcheckx; /* Set the tile to the next cell */
PushWallRec.pwally = PushWallRec.pwallchecky;
PushWallOne(); /* Push one more record */
}
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