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graphx.c
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graphx.c
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#include "lab3d.h"
#include <math.h>
static K_INT16 wallfound[64][64][4];
static char wallside[16384];
static K_INT16 wallx[16384],wally[16384];
static K_UINT16 walnum[16384];
static K_INT32 wallsfound;
static K_INT32 rayscast;
static double hitpointx,hitpointy;
static K_INT16 mapfound;
static K_INT16 gameoverfound;
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#define EPSILON 0.0000001
/* (x2-x1)^2+(y2-y1)^2. */
double distance2(double x1,double y1,double x2,double y2) {
double dx=x2-x1;
double dy=y2-y1;
return dx*dx+dy*dy;
}
double angcan(double angle) {
while(angle<0) angle+=M_PI*2;
while(angle>=M_PI*2) angle-=M_PI*2;
return angle;
}
/* Cast a ray from (posxs,posys) in direction angle, and see what it hits
and passes through. */
K_INT16 castray(K_UINT16 posxs,K_UINT16 posys, double angle) {
K_INT16 walx,waly,waln;
char wals;
double tan1,tan2;
double y1,x2;
K_INT16 x1,y2,x1i,y2i;
int y1i,x2i;
K_INT16 xdir,ydir;
double xinc,yinc;
int status;
char xdet,detr;
char cont;
K_INT16 j,k;
K_INT32 cx1,cy1;
rayscast++;
angle=angcan(angle);
tan1=tan(0.5*M_PI-angle);
tan2=tan(angle);
x1=posxs>>10;
y1=(posxs&1023)/1024.0;
yinc=tan2;
xdir=1;
if ((angle>=M_PI*0.5)&&(angle<M_PI*1.5)) {
xdir = -1;
yinc = -yinc;
x1 += 1; /* Note: if xdir==-1, use x1-1 for wall checks. */
y1 = 1.0 - y1;
}
if (tan2<0) {
tan2=-tan2;
}
y1*=tan2;
if (!(angle>=M_PI))
y1=-y1;
y1+=posys/1024.0;
y2=posys>>10;
x2=(posys&1023)/1024.0;
xinc=tan1;
ydir=1;
if (angle>=M_PI) {
ydir = -1;
xinc = -xinc;
y2 += 1; /* Note: if ydir==-1, use y2-1 for wall checks. */
x2 = 1.0 - x2;
}
if (tan1<0) {
tan1=-tan1;
}
x2*=tan1;
if (!((angle>=M_PI*0.5)&&(angle<M_PI*1.5)))
x2=-x2;
x2+=posxs/1024.0;
x1+=xdir;
y1+=yinc;
x2+=xinc;
y2+=ydir;
x1i=x1-(xdir<0);
x2i=x2;
y1i=y1;
y2i=y2-(ydir<0);
cont=1;
while(cont) {
status=0;
cont=0;
if (fabs(tan2)<EPSILON) {
y1i=y1;
x1i=x1-(xdir<0);
if ((y1i>=0)&&(y1i<64))
while((status!=1)&&(x1i>=0)&&(x1i<64)) {
tempbuf[(x1i<<6)+y1i]=1;
status=bmpkind[board[x1i][y1i]&1023];
if (status!=1) {
x1i+=xdir;
}
}
x1=x1i+(xdir<0);
if (status!=1) return -1;
} else if (fabs(tan1)<EPSILON) {
x2i=x2;
y2i=y2-(ydir<0);
if ((x2i>=0)&&(x2i<64))
while((status!=256)&&(y2i>=0)&&(y2i<64)) {
tempbuf[(x2i<<6)+y2i]=1;
status=bmpkind[board[x2i][y2i]&1023]<<8;
if (status!=256) {
y2i+=ydir;
}
}
y2=y2i+(ydir<0);
if (status!=256) return -1;
} else {
xdet=(tan2<tan1);
y1i=y1; x2i=x2;
while((status!=1)&&(status!=256)) {
/*
printf("Player at (%f,%f):(%d,%lf)(%lf,%d), reald %lf,%lf\n",
posxs/1024.0,posys/1024.0,x1,y1,x2,y2,
((double)(x1-(posxs/1024.0)))/(double)(y1-(posys/1024.0)),
((double)(x2-(posxs/1024.0)))/(double)(y2-(posys/1024.0)));
printf("expd %lf,%lf\n",
((double)(xdir))/(double)yinc,
((double)xinc)/(double)(ydir));
*/
x1i=x1-(xdir<0); y2i=y2-(ydir<0);
if (xdet)
detr=((x1-x2)<0)^(xdir<0);
else
detr=((y1-y2)<0)^(ydir<0);
if (detr) {
if ((x1i<0)||(x1i>=64)||(y1i<0)||(y1i>=64)) break;
tempbuf[(x1i<<6)+y1i]=1;
status=bmpkind[board[x1i][y1i]&1023];
if (status!=1) {
x1+=xdir;
y1+=yinc;
y1i=y1;
}
} else {
if ((x2i<0)||(x2i>=64)||(y2i<0)||(y2i>=64)) break;
tempbuf[(x2i<<6)+y2i]=1;
status=bmpkind[board[x2i][y2i]&1023]<<8;
if (status!=256) {
y2+=ydir;
x2+=xinc;
x2i=x2;
}
}
}
if ((status!=1)&&(status!=256)) return -1;
}
if ((status&0xff)==1) {
j = ((int)(board[x1-(xdir<0)][y1i]-1)&1023);
if ((angle>=M_PI*0.5)&&(angle<M_PI*1.5))
k=board[x1i+1][y1i];
else
k=board[x1i-1][y1i];
if ((k&8192)==0) {
k &= 1023;
if (lab3dversion) {
if (((k >= 152) && (k <= 157)) || ((k >= 168) && (k <= 173)))
j = 188;
} else {
if ((k >= door1) && (k <= door1+5)) j = doorside1-1;
if ((k >= door2) && (k <= door2+5)) j = doorside2-1;
if ((k >= door3) && (k <= door3+7)) j = doorside3-1;
if ((k >= door4) && (k <= door4+6)) j = doorside4-1;
if ((k >= door5) && (k <= door5+7)) j = doorside5-1;
}
}
wals=(xdir<0); /* 0=west, 1=east. */
walx=x1-(xdir<0);
waly=y1i;
waln=j;
hitpointx=x1;
hitpointy=y1;
x1+=xdir;
y1+=yinc;
} else if ((status&0xff00)==256) {
j = ((int)(board[x2i][y2-(ydir<0)]-1)&1023);
if (angle<M_PI)
k=board[x2i][y2i-1];
else
k=board[x2i][y2i+1];
if ((k&8192) > 0)
{
k &= 1023;
if (lab3dversion) {
if (((k >= 152) && (k <= 157)) || ((k >= 168) && (k <= 173)))
j = 188;
} else {
if ((k >= door1) && (k <= door1+5)) j = doorside1-1;
if ((k >= door2) && (k <= door2+5)) j = doorside2-1;
if ((k >= door3) && (k <= door3+7)) j = doorside3-1;
if ((k >= door4) && (k <= door4+6)) j = doorside4-1;
if ((k >= door5) && (k <= door5+7)) j = doorside5-1;
}
}
wals=2+(ydir<0);
walx=x2i;
waly=y2-(ydir<0);
waln=j;
hitpointx=x2;
hitpointy=y2;
x2+=xinc;
y2+=ydir;
} else return -1;
if (lab3dversion==0)
if (waterstat>0)
if ((waln&1023)==fountain-1)
waln+=(animate2+1);
if ((status&255)==1) waln|=16384;
// fprintf(stderr,"Ray hit at %lf,%lf\n",hitpointx,hitpointy);
/* Keep going if ray hit a wall very close to us. */
cx1=((K_INT32)walx)<<10;
cy1=((K_INT32)waly)<<10;
cont=0;
switch(wals) {
case 0: /* West */
if (((cx1-posxs)<walltol)&&
(abs(posys-(cy1+512))<(512+walltol)))
cont=1;
break;
case 1: /* East */
if (((posxs-(cx1+1024))<walltol)&&
(abs(posys-(cy1+512))<(512+walltol)))
cont=1;
break;
case 2: /* North */
if (((cy1-posys)<walltol)&&
(abs(posxs-(cx1+512))<(512+walltol)))
cont=1;
break;
case 3: /* South */
if (((posys-(cy1+1024))<walltol)&&
(abs(posxs-(cx1+512))<(512+walltol)))
cont=1;
break;
}
if (wallfound[walx][waly][(int)wals]!=-1) {
if (!cont)
return wallfound[walx][waly][(int)wals];
else
continue;
}
wallfound[walx][waly][(int)wals]=wallsfound;
wallx[wallsfound]=walx;
wally[wallsfound]=waly;
wallside[wallsfound]=wals;
walnum[wallsfound]=waln;
if ((waln&1023)==map-1) mapfound=1;
if ((waln&1023)==gameover-1) gameoverfound=1;
wallsfound++;
/* if (cont)
printf("Continuing...\n");*/
}
return wallsfound;
}
/* Binary division ray casting routine. */
void recurseray(K_UINT16 posxs,K_UINT16 posys,double angle,double la,double ra,
double leftx,double lefty,double rightx,double righty) {
if (angcan(ra-la)<EPSILON) return;
if (castray(posxs,posys,angle)<0) {
fprintf(stderr,"Warning: ray to nothing.\n");
return;
}
if ((angcan(ra-la)>=M_PI/2-EPSILON)||
(distance2(hitpointx,hitpointy,leftx,lefty)>(1.0-EPSILON)))
recurseray(posxs,posys,(la+angle)/2.0,la,angle,
leftx,lefty,hitpointx,hitpointy);
if ((angcan(ra-la)>=M_PI/2-EPSILON)||
(distance2(hitpointx,hitpointy,rightx,righty)>(1.0-EPSILON)))
recurseray(posxs,posys,(ra+angle)/2.0,angle, ra,
hitpointx,hitpointy,rightx,righty);
}
float fogcol[4]={0.5,0.5,0.5,1.0};
/* Draw an ingame view, as seen from (posxs,posys,poszs) in direction
angs. */
void picrot(K_UINT16 posxs, K_UINT16 posys, K_INT16 poszs, K_INT16 angs)
{
unsigned char shadecoffs;
K_INT16 i, j, k, x, y;
K_INT16 yy, endyy, temp;
K_INT32 x1, y1, x2, y2;
K_INT16 xc, yc;
double hpx1,hpy1;
GLdouble xmin,xmax,ymin,ymax;
static int spareframes=0;
double angl, angr;
double vangw;
wallsfound=0;
mapfound=0;
gameoverfound=0;
memset(tempbuf, 0, 4096);
// jspenguin hack:
// It always annoyed me that whenever you enter
// a cube, its contents disappear. This makes sure
// that whatever is in the current cube is drawn.
tempbuf[((posxs>>10)<<6)+(posys>>10)]=1;
memset(wallfound,255,32768);
rayscast=0;
vangw=atan(tan(M_PI*0.25)*aspw);
angl=angs/1024.0*M_PI-vangw;
angr=angs/1024.0*M_PI+vangw;
if (castray(posxs,posys,angr)<0)
fprintf(stderr,"Warning: ray to nothing.\n");
hpx1=hitpointx;
hpy1=hitpointy;
if (castray(posxs,posys,angl)<0)
fprintf(stderr,"Warning: ray to nothing.\n");
if ((angcan(angr-angl)>=M_PI/2-EPSILON)||
(distance2(hitpointx,hitpointy,hpx1,hpy1)>(1.0-EPSILON)))
recurseray(posxs,posys,angs/1024.0*M_PI,angl,
angr,hitpointx,hitpointy,hpx1,hpy1);
// fprintf(stderr,"Rays cast: %d\n",rayscast);
if (vidmode == 0) {
yy = 9000;
endyy = 0;
}
else {
yy = 10800;
endyy = 0;
}
/* These two textures change all the time, but we don't want to waste time
uploading invisible changes... */
if (lab3dversion==0) {
if (mapfound)
updatemap();
if (gameoverfound)
updategameover();
}
/* I suppose it could be faster on some systems to do tricks with the
viewport rather than just draw everything that goes under the status
bar. Perhaps... later. */
glDisable(GL_LIGHTING);
/* Draw floor and roof (save time by clearing to one of them, and drawing
only one rectangle)... */
if (lab3dversion)
glClearColor( palette[0x85*3]/64.0*redfactor,
palette[0x85*3+1]/64.0*greenfactor,
palette[0x85*3+2]/64.0*bluefactor, 0 );
else
glClearColor( palette[0x84*3]/64.0*redfactor,
palette[0x84*3+1]/64.0*greenfactor,
palette[0x84*3+2]/64.0*bluefactor, 0 );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glDisable(GL_TEXTURE_2D);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0, (GLfloat)360, 0.0, (GLfloat)240);
glMatrixMode( GL_MODELVIEW );
glLoadIdentity( );
glDisable(GL_DEPTH_TEST);
glDepthMask(0);
#if !defined(OPENGLES)
glBegin(GL_QUADS);
glColor3f(palette[0xe3*3]/64.0*redfactor,
palette[0xe3*3+1]/64.0*greenfactor,
palette[0xe3*3+2]/64.0*bluefactor);
glVertex3i(0,240,0);
glVertex3i(0,240-yy/90,0);
glVertex3i(360,240-yy/90,0);
glVertex3i(360,240,0);
glEnd();
#else
GLfloat vtx[] = {
0,240,
0,240-yy/90,
360,240-yy/90,
360,240
};
glColor4f(palette[0xe3*3]/64.0*redfactor,
palette[0xe3*3+1]/64.0*greenfactor,
palette[0xe3*3+2]/64.0*bluefactor,
1.0f );
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, vtx);
glDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
glDisableClientState(GL_VERTEX_ARRAY);
#endif
#if DEBUG
checkGLStatus( __FILE__, __LINE__ );
#endif
/* Switch to labyrinth view transformations. */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
xmax = neardist * tan(M_PI*0.25);
xmin = -xmax;
ymin = xmin * 0.75;
ymax = -ymin;
xmax *= aspw; xmin *= aspw;
ymax *= asph; ymin *= asph;
#if !defined(OPENGLES)
glFrustum(xmin, xmax, ymin, ymax, neardist, 98304.0);
#else
glFrustumf(xmin, xmax, ymin, ymax, neardist, 98304.0);
#endif
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(posxs, posys, poszs*16.0,
posxs+sintable[(angs+512)&2047], posys+sintable[angs],
poszs*16.0,
0.0,0.0,-1.0);
glEnable(GL_DEPTH_TEST);
glDepthMask(1);
/* Draw solid walls... */
// printf("Walls found: %d\n",wallsfound);
for(i=0;i<wallsfound;i++)
{
shadecoffs=(walnum[i]>>13)&2;
if ((walnum[i]&1023) == map-1)
shadecoffs = 0;
j=walnum[i]&1023;
if (wallx[i]<0) continue;
x1=((K_INT32)wallx[i])<<10;
y1=((K_INT32)wally[i])<<10;
switch(wallside[i]) {
case 0: /* West */
x2=x1;
y2=y1+1024;
break;
case 1: /* East */
x1+=1024;
x2=x1;
y2=y1;
y1+=1024;
break;
case 2: /* North */
y2=y1;
x2=x1;
x1+=1024;
break;
case 3: /* South */
y1+=1024;
y2=y1;
x2=x1+1024;
break;
default:
/* Can't happen. I hope. */
x2=x1;
y2=y1;
break;
}
glEnable(GL_TEXTURE_2D);
glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_MODULATE);
if (lab3dversion)
k=numsplits;
else
for(k=0;k<numsplits;k++)
if (splitTexNum[k]==j) break;
if (k<numsplits) {
glBindTexture(GL_TEXTURE_2D,splitTexName[k][0]);
#if !defined(OPENGLES)
glBegin(GL_QUADS);
if (shadecoffs) {
glColor3f(redfactor,greenfactor,bluefactor);
}
else {
glColor3f(0.9*redfactor,0.9*greenfactor,0.9*bluefactor);
}
glTexCoord2f(0.0,1.0/64.0);
glVertex3i(x1,y1,0);
glTexCoord2f(1.0,1.0/64.0);
glVertex3i(x1,y1,1024);
glTexCoord2f(1.0,33.0/64.0);
glVertex3i((x1+x2)>>1,(y1+y2)>>1,1024);
glTexCoord2f(0.0,33.0/64.0);
glVertex3i((x1+x2)>>1,(y1+y2)>>1,0);
glEnd();
#else
GLfloat vtx[] = {
x1,y1,0,
x1,y1,1024,
(x1+x2)>>1,(y1+y2)>>1,1024,
(x1+x2)>>1,(y1+y2)>>1,0
};
GLfloat tex[] = {
0.0,1.0/64.0,
1.0,1.0/64.0,
1.0,33.0/64.0,
0.0,33.0/64.0
};
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (shadecoffs) {
glColor4f(redfactor,greenfactor,bluefactor, 1.0f);
}
else {
glColor4f(0.9*redfactor,0.9*greenfactor,0.9*bluefactor, 1.0f);
}
glVertexPointer(3, GL_FLOAT, 0, vtx);
glTexCoordPointer(2, GL_FLOAT, 0, tex);
glDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#endif
glBindTexture(GL_TEXTURE_2D,splitTexName[k][1]);
#if !defined(OPENGLES)
glBegin(GL_QUADS);
glTexCoord2f(0.0,31.0/64.0);
glVertex3i((x1+x2)>>1,(y1+y2)>>1,0);
glTexCoord2f(1.0,31.0/64.0);
glVertex3i((x1+x2)>>1,(y1+y2)>>1,1024);
glTexCoord2f(1.0,63.0/64.0);
glVertex3i(x2,y2,1024);
glTexCoord2f(0.0,63.0/64.0);
glVertex3i(x2,y2,0);
glEnd();
#else
GLfloat vtx_a[] = {
(x1+x2)>>1,(y1+y2)>>1,0,
(x1+x2)>>1,(y1+y2)>>1,1024,
x2,y2,1024,
x2,y2,0
};
GLfloat tex_a[] = {
0.0,31.0/64.0,
1.0,31.0/64.0,
1.0,63.0/64.0,
0.0,63.0/64.0,
};
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (shadecoffs) {
glColor4f(redfactor,greenfactor,bluefactor, 1.0f);
}
else {
glColor4f(0.9*redfactor,0.9*greenfactor,0.9*bluefactor, 1.0f);
}
glVertexPointer(3, GL_FLOAT, 0, vtx_a);
glTexCoordPointer(2, GL_FLOAT, 0, tex_a);
glDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#endif
} else {
if (j == invisible-1)
glEnable(GL_BLEND);
glBindTexture(GL_TEXTURE_2D,texName[j]);
#if !defined(OPENGLES)
glBegin(GL_QUADS);
if (j == invisible-1)
glColor4f(1.0,1.0,1.0,0.0); /* Must draw invisible walls
to make stuff behind invisible;
see board 15. */
else {
if (shadecoffs) {
glColor3f(redfactor,greenfactor,bluefactor);
}
else {
glColor3f(0.9*redfactor,0.9*greenfactor,0.9*bluefactor);
}
}
glTexCoord2f(0.0,walltexcoord[j][0]);
glVertex3i(x1,y1,0);
glTexCoord2f(1.0,walltexcoord[j][0]);
glVertex3i(x1,y1,1024);
glTexCoord2f(1.0,walltexcoord[j][1]);
glVertex3i(x2,y2,1024);
glTexCoord2f(0.0,walltexcoord[j][1]);
glVertex3i(x2,y2,0);
glEnd();
#else
GLfloat vtx_b[] = {
x1,y1,0,
x1,y1,1024,
x2,y2,1024,
x2,y2,0
};
GLfloat tex_b[] = {
0.0,walltexcoord[j][0],
1.0,walltexcoord[j][0],
1.0,walltexcoord[j][1],
0.0,walltexcoord[j][1]
};
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if (j == invisible-1)
glColor4f(1.0,1.0,1.0,0.0); /* Must draw invisible walls
to make stuff behind invisible;
see board 15. */
else {
if (shadecoffs) {
glColor4f(redfactor,greenfactor,bluefactor, 1.0f);
}
else {
glColor4f(0.9*redfactor,0.9*greenfactor,0.9*bluefactor, 1.0f);
}
}
glVertexPointer(3, GL_FLOAT, 0, vtx_b);
glTexCoordPointer(2, GL_FLOAT, 0, tex_b);
glDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#endif
if (j == invisible-1)
glDisable(GL_BLEND);
}
#if DEBUG
checkGLStatus( __FILE__, __LINE__ );
#endif
}
glDepthMask(0);
/* Update bullet rotations... Somewhat misplaced IMHO. */
if (lab3dversion) {
spareframes+=clockspd;
i=(spareframes/TICKS_PER_SPRITE_FRAME)%12;
spareframes%=TICKS_PER_SPRITE_FRAME;
for(k=0;k<i;k++) {
heatpos = 287-heatpos;
j = kenpos;
if (j == 66) kenpos = 67;
if (j == 67) kenpos = 1024+66;
if (j == 1024+66) kenpos = 65;
if (j == 65) kenpos = 66;
switch(kenpos2) {
/* Sequence is 193, 65, 66, 67, 194, 67+1024, 66+1024, 65+1024.
Sequence appears to match values used in v1.1; determined
through observation of v1.1 in slow motion. */
case 193:
kenpos2=65; break;
case 65:
kenpos2=66; break;
case 66:
kenpos2=67; break;
case 67:
kenpos2=194; break;
case 194:
kenpos2=67+1024; break;
case 67+1024:
kenpos2=66+1024; break;
case 66+1024:
kenpos2=65+1024; break;
case 65+1024:
kenpos2=193; break;
}
ballpos++;
if (ballpos == 72)
ballpos = 68;
fanpos++;
if (fanpos == 52)
fanpos = 49;
warpos++;
if (warpos == 125)
warpos = 123;
}
for(k=0;k<bulnum;k++)
if (bulkind[k] == 7)
{
x1 = ((long)bulx[k]-(long)posx);
y1 = ((long)buly[k]-(long)posy);
if (labs(x1)+labs(y1) < 32768)
{
x1 >>= 2;
y1 >>= 2;
x2 = (((x1*sintable[bulang[k]])-(y1*sintable[(bulang[k]+512)&2047]))>>16);
y2 = (((x1*sintable[(bulang[k]+512)&2047])+(y1*sintable[bulang[k]]))>>16);
if ((x2|y2) != 0)
{
j = ((x2*clockspd)<<11)/(x2*x2+y2*y2);
bulang[k] += j;
}
}
}
} else {
for(k=0;k<bulnum;k++)
if (bulkind[k] == 7)
{
x1 = ((long)bulx[k]-(long)posxs);
y1 = ((long)buly[k]-(long)posys);
if (labs(x1)+labs(y1) < 32768)
{
x1 >>= 2;
y1 >>= 2;
x2 = (((x1*sintable[bulang[k]])-(y1*sintable[(bulang[k]+512)&2047]))>>16);
y2 = (((x1*sintable[(bulang[k]+512)&2047])+(y1*sintable[bulang[k]]))>>16);
if ((x2|y2) != 0)
{
j = ((x2*clockspd)<<11)/(x2*x2+y2*y2);
bulang[k] += j;
}
}
}
}
/* Check for visible monsters... */
if (lab3dversion) {
for(i=0;i<mnum;i++)
{
xc = (mposx[i]>>10);
yc = (mposy[i]>>10);
if (tempbuf[(xc<<6)+yc] != 0)
{
temp = mboard[xc][yc];
if ((temp != 68) && (temp != 98))
for(k=0;k<bulnum;k++)
if ((bulkind[k] == 3) || (bulkind[k] == 4))
{
x1 = ((long)bulx[k]-(long)mposx[i]);
y1 = ((long)buly[k]-(long)mposy[i]);
if (labs(x1)+labs(y1) < 32768)
{
x1 >>= 2;
y1 >>= 2;
x2 = (((x1*sintable[bulang[k]])-(y1*sintable[(bulang[k]+512)&2047]))>>16);
y2 = (((x1*sintable[(bulang[k]+512)&2047])+(y1*sintable[bulang[k]]))>>16);
if ((x2|y2) != 0)
{
j = ((x2*clockspd)<<11)/(x2*x2+y2*y2);
if (temp == 94)
j >>= 1;
if (temp == 109)
j = -j;
bulang[k] += j;
}
}
}
if (temp == 66)
checkobj(mposx[i],mposy[i],posx,posy,ang,
(lab3dversion==2)?kenpos:kenpos2);
if (temp == 68)
checkobj(mposx[i],mposy[i],posx,posy,ang,ballpos);
if (temp == 38)
{
if (mshock[i] > 0)
checkobj(mposx[i],mposy[i],posx,posy,ang,61);
else
{
if ((kenpos&1023) == 66)
checkobj(mposx[i],mposy[i],posx,posy,ang,140);
else if (kenpos == 65)
checkobj(mposx[i],mposy[i],posx,posy,ang,38);
else if (kenpos == 67)
checkobj(mposx[i],mposy[i],posx,posy,ang,141);
}
}
if (temp == 54)
{
if (mshock[i] > 0)
checkobj(mposx[i],mposy[i],posx,posy,ang,
(lab3dversion==1)?195+((kenpos&1023)==66):56);
else
{
j = 54;
if ((posx > mposx[i]) == (posy > mposy[i]))
{
if ((mgolx[i] < moldx[i]) || (mgoly[i] > moldy[i]))
j = 53;
if ((mgolx[i] > moldx[i]) || (mgoly[i] < moldy[i]))
j = 55;
if ((posx < mposx[i]) && (posy < mposy[i]))
j = 108 - j;
}
if ((posx > mposx[i]) != (posy > mposy[i]))
{
if ((mgolx[i] < moldx[i]) || (mgoly[i] < moldy[i]))
j = 53;
if ((mgolx[i] > moldx[i]) || (mgoly[i] > moldy[i]))
j = 55;
if ((posx > mposx[i]) && (posy < mposy[i]))
j = 108 - j;
}
checkobj(mposx[i],mposy[i],posx,posy,ang,j);
}
}
if (temp == 94)
{
if (mshock[i] > 0)
checkobj(mposx[i],mposy[i],posx,posy,ang,95);
else
checkobj(mposx[i],mposy[i],posx,posy,ang,94);
}
if (temp == 98)
{
if (mshock[i] > 0)
checkobj(mposx[i],mposy[i],posx,posy,ang,98);
else
checkobj(mposx[i],mposy[i],posx,posy,ang,kenpos+34);
}
if (temp == 109)
{
if (mshock[i] > 0)
checkobj(mposx[i],mposy[i],posx,posy,ang,110);
else
checkobj(mposx[i],mposy[i],posx,posy,ang,109);
}
if (temp == 160)
checkobj(mposx[i],mposy[i],posx,posy,ang,kenpos+160-66);
if (temp == 165)
checkobj(mposx[i],mposy[i],posx,posy,ang,165);
if (temp == 187)
checkobj(mposx[i],mposy[i],posx,posy,ang,kenpos+187-66);
}
}
} else {
for(i=0;i<mnum;i++)
{
j=((mposx[i]>>10)<<6)+(mposy[i]>>10);
if (tempbuf[j] != 0)
{
temp = mstat[i];
if ((temp != monbal) && (temp != monhol) && (temp != monke2) && (temp != mondog))
for(k=0;k<bulnum;k++)
if ((bulkind[k] == 3) || (bulkind[k] == 4))
{
x1 = ((long)bulx[k]-(long)mposx[i]);
y1 = ((long)buly[k]-(long)mposy[i]);
if (labs(x1)+labs(y1) < 32768)
{
x1 >>= 2;
y1 >>= 2;
x2 = (((x1*sintable[bulang[k]])-(y1*sintable[(bulang[k]+512)&2047]))>>16);
y2 = (((x1*sintable[(bulang[k]+512)&2047])+(y1*sintable[bulang[k]]))>>16);
if ((x2|y2) != 0)
{
j = ((x2*clockspd)<<11)/(x2*x2+y2*y2);
if (temp == monali)
j >>= 1;
if ((temp == monzor) || (temp == monan2))
j = -j;
if (temp == monan3)
{
if (mshock[i] > 0)
j = 0;
else
j = -j;
}
bulang[k] += j;
}
}
}
switch(temp)
{
case monken:
checkobj(mposx[i],mposy[i],posxs,posys,angs,monken+oscillate5);
break;
case monbal:
checkobj(mposx[i],mposy[i],posxs,posys,angs,monbal+animate4);
break;
case mongho:
checkobj(mposx[i],mposy[i],posxs,posys,angs,mongho+oscillate3);
break;
case hive:
if (((mshock[i]&16384) == 0) && (mstat[i] > 0))
checkobj(mposx[i],mposy[i],posxs,posys,angs,hive);
else
{
checkobj(mposx[i],mposy[i],posxs,posys,angs,hivetohoney+((mshock[i]-16384)>>5));
mshock[i] += clockspd;
if (((mshock[i]-16384)>>5) >= 5)
{
board[mposx[i]>>10][mposy[i]>>10] = honey+1024;
mnum--;
moldx[i] = moldx[mnum];
moldy[i] = moldy[mnum];
mposx[i] = mposx[mnum];
mposy[i] = mposy[mnum];
mgolx[i] = mgolx[mnum];
mgoly[i] = mgoly[mnum];
mstat[i] = mstat[mnum];
mshot[i] = mshot[mnum];
mshock[i] = mshock[mnum];
}
}
break;