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