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353eac0dbecac80a7034df90ce64cebfd09600d2
TempleOS-Rijn/Demo/Games/EagleDive.CPP
T
Terry A. Davis 353eac0dbe TempleOSCDV4.09.ISO
2018-09-08 21:47:32 +02:00

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//Uses $LK,"fixed-point",A="FI:::/Demo/Lectures/FixedPoint.CPP"$.
RegSetDftEntry("TempleOS/EagleDive","I64 best_score=0;\n");
RegExeBranch("TempleOS/EagleDive");
//Keep these power of two so shift is used instead of multiply
//to index arrays.
#define MAP_WIDTH 1024
#define MAP_HEIGHT 1024
#define MAP_SCALE 150
#define DISPLAY_SCALE 100
#define CTRLS_SCALE 0.05
//I think I did these so the heads-up showed intelligable numbers.
//Scaling is a mess.
#define COORDINATE_SCALE 256
#define COORDINATE_BITS 8
#define WATER_ELEVATION 15
#define ROCK_ELEVATION 45
#define SNOW_ELEVATION 55
//Too big makes off-screen draws take place.
#define MAX_PANEL_SIZE 16
class Panel
{
Panel *next;
I32 n, //num polygon sides
num; //panel number
CD3I32 *pts;
I64 color,cnt;
};
class Fish
{
Fish *next,*last;
CD3I64 p;
} fish_root;
$SP,"<1>",BI=1$
I64 critical_section_flag;
/*These are $BK,1$NOT$BK,0$ dealloced after the program ends,
but I did them this way for your benefit
so 2D array indexing is not done by hand.
You can type "EagleDive;" at the command line
to rerun without new allocations.
Normally, just spawn a popup task,
run it and kill it using an icon.
*/
I16 elevations[MAP_HEIGHT][MAP_WIDTH];
CD3 normals[MAP_HEIGHT][MAP_WIDTH];
Panel *panels[MAP_HEIGHT][MAP_WIDTH];
I64 num_panels;
Panel *panel_root;
U8 *panels_processed_bitmap;
F64 game_t0,è,é1,é2,speed;
I64 strip_height,x,y,z,game_score;
Bool game_over;
class MPCtrl {
I64 init_not_done_flags,update_not_done_flags,app_not_done_flags;
I64 strip_width[MP_MAX_PROCESSORS];
Bool app_done;
} mp;
U0 EDTransform(CDC *dc,I64 *x,I64 *y,I64 *z)
{
I64 zz;
Mat4x4MulXYZ(dc->r,x,y,z);
*z=zz=-*z;
if (zz>0) {
*x = *x * DISPLAY_SCALE/ zz; //Foreshortening
*y = *y * DISPLAY_SCALE/ zz;
}
*x+=dc->x;
*y =dc->y-*y;
}
U0 CalcNormals()
{/*Find the normal vect with a curl.
i,j and k are the axis unit vectors,
not to be confused with my local index variables.
i j k
0 1 dz2
1 0 dz1
Normal: dz1*i + dz2*j - k
*/
I64 i,j;
for (j=0;j<MAP_HEIGHT-1;j++) {
for (i=0;i<MAP_WIDTH-1;i++) {
normals[j][i].x=elevations[j][i+1]-elevations[j][i];
normals[j][i].y=elevations[j+1][i]-elevations[j][i];
normals[j][i].z=-1;
D3Unit(&normals[j][i]);
}
MemSet(&normals[j][i],0,sizeof(CD3));
}
for (i=0;i<MAP_WIDTH-1;i++)
MemSet(&normals[j][i],0,sizeof(CD3));
}
Bool TestSameSlope(I64 x,I64 y,I64 w,I64 h)
{
CD3 p,*s;
I64 k1,k2;
if (!(0<=x && x+w<MAP_WIDTH && 0<=y && y+h<MAP_HEIGHT))
return FALSE;
s=&normals[y][x];
for (k2=0;k2<h;k2++)
for (k1=0;k1<w;k1++)
if (D3NormSqr(D3Sub(&p,&normals[y+k2][x+k1],s))>.10)
return FALSE;
return TRUE;
}
U0 MPDoPanels(CTask *task)
{
I64 i,j,l,k1,k2,w,h,threshold,lo,hi;
Bool cont;
Panel *tempp,*start_ptr=NULL,*end_ptr=NULL;
CD3I32 *poly;
Fish *tempf;
lo=Gs->num*(MAP_HEIGHT-1)/mp_cnt;
hi=(Gs->num+1)*(MAP_HEIGHT-1)/mp_cnt;
for (threshold=8;threshold>=1;threshold--)
for (j=lo;j<hi;j++) {
for (i=0;i<MAP_WIDTH-1;i++) {
if (!panels[j][i]) {
w=1;
h=1;
do {
cont=FALSE;
if (w<MAX_PANEL_SIZE && TestSameSlope(i,j,w+1,h)) {
w++;
cont=TRUE;
}
if (h<MAX_PANEL_SIZE && TestSameSlope(i,j,w,h+1)) {
h++;
cont=TRUE;
}
} while (cont);
if (w>=threshold || h>=threshold) {
tempp=CAlloc(sizeof(Panel),task);
lock {tempp->num=num_panels++;}
l=elevations[j][i];
if (l<=WATER_ELEVATION*MAP_SCALE &&
elevations[j][i+w-1]<=WATER_ELEVATION*MAP_SCALE &&
elevations[j+h-1][i]<=WATER_ELEVATION*MAP_SCALE &&
elevations[j+h-1][i+w-1]<=WATER_ELEVATION*MAP_SCALE) {
tempp->color=BLUE;
if (Rand<0.05) {
tempf=MAlloc(sizeof(Fish),task);
tempf->p.x=(i+w/2)*MAP_SCALE;
tempf->p.y=(j+h/2)*MAP_SCALE;
tempf->p.z=l;
while (LBts(&critical_section_flag,0))
Yield;
QueIns(tempf,fish_root.last);
LBtr(&critical_section_flag,0);
}
} else {
if (RandI16&1) {
if (l<ROCK_ELEVATION*MAP_SCALE)
tempp->color=LTGREEN;
else if (l<SNOW_ELEVATION*MAP_SCALE) {
if (!(RandU16&3))
tempp->color=LTGRAY;
else
tempp->color=LTGREEN;
} else {
if (!(RandU16&3))
tempp->color=WHITE;
else
tempp->color=LTGRAY;
}
} else {
if (l<ROCK_ELEVATION*MAP_SCALE)
tempp->color=GREEN+LTGREEN<<16+ROPF_DITHER;
else if (l<SNOW_ELEVATION*MAP_SCALE) {
if (!(RandU16&3))
tempp->color=DKGRAY+LTGRAY<<16+ROPF_DITHER;
else
tempp->color=GREEN+LTGREEN<<16+ROPF_DITHER;
} else {
if (!(RandU16&3))
tempp->color=LTGRAY+WHITE<<16+ROPF_DITHER;
else
tempp->color=DKGRAY+LTGRAY<<16+ROPF_DITHER;
}
}
}
tempp->n=4;
poly=tempp->pts=MAlloc(sizeof(CD3I32)*tempp->n,task);
poly[0].x=MAP_SCALE*i;
poly[0].y=MAP_SCALE*j;
poly[0].z=elevations[j][i];
poly[1].x=MAP_SCALE*(i+w);
poly[1].y=MAP_SCALE*j;
poly[1].z=elevations[j][i+w];
poly[2].x=MAP_SCALE*(i+w);
poly[2].y=MAP_SCALE*(j+h);
poly[2].z=elevations[j+h][i+w];
poly[3].x=MAP_SCALE*i;
poly[3].y=MAP_SCALE*(j+h);
poly[3].z=elevations[j+h][i];
tempp->next=start_ptr;
start_ptr=tempp;
if (!end_ptr)
end_ptr=tempp;
for (k2=0;k2<h;k2++)
for (k1=0;k1<w;k1++)
panels[j+k2][i+k1]=tempp;
}
}
}
}
if (end_ptr) {
while (LBts(&critical_section_flag,0))
Yield;
if (end_ptr)
end_ptr->next=panel_root;
panel_root=start_ptr;
LBtr(&critical_section_flag,0);
}
LBtr(&mp.init_not_done_flags,Gs->num);
}
U0 InitElevations()
{
I64 i,j,l,x,y,xx,yy,x1,y1,x2,y2;
MemSet(elevations,0,sizeof(elevations));
for (i=0;i<MAP_WIDTH*MAP_HEIGHT/128;i++) {
x=RandU32%MAP_WIDTH;
y=RandU32%MAP_HEIGHT;
j=1<<(RandU32%6);
l=0;
while (j--) {
if (!l && RandU16<MAX_U16/4)
l=RandU16%(j+1);
if (l) {
x1=ClampI64(x-j,0,MAP_WIDTH-1);
x2=ClampI64(x+j,0,MAP_WIDTH-1);
y1=ClampI64(y-j,0,MAP_HEIGHT-1);
y2=ClampI64(y+j,0,MAP_HEIGHT-1);
for (yy=y1;yy<y2;yy++)
for (xx=x1;xx<x2;xx++)
elevations[yy][xx]+=MAP_SCALE/2;
l--;
}
}
}
for (j=0;j<MAP_HEIGHT;j++)
for (i=0;i<MAP_WIDTH;i++)
if (elevations[j][i]<WATER_ELEVATION*MAP_SCALE)
elevations[j][i]=WATER_ELEVATION*MAP_SCALE;
}
U0 InitMap()
{/*We make a topographic data structure "elevations[][]"
and convert it to panels. "panels[][]" holds the panels
for each spot.
*/
I64 i;
InitElevations;
MemSet(panels,0,sizeof(panels));
CalcNormals;
panel_root=NULL;
num_panels=0;
mp.init_not_done_flags=1<<mp_cnt-1;
for (i=0;i<mp_cnt;i++)
Spawn(&MPDoPanels,Fs,"Do Panels",i);
while (mp.init_not_done_flags)
Sleep(1);
panels_processed_bitmap=MAlloc((num_panels+7)>>3);
}
F64 claws_down;
#define HAND_X (1.0-claws_down)*(0.3*w)+claws_down*(0.4*w)
#define HAND_Y (1.0-claws_down)*(h-125)+claws_down*h
$SP,"<2>",BI=2$
$SP,"<3>",BI=3$
U0 ClawDraw(CDC *dc,I64 x1,I64 y1,I64 x2,I64 y2,I64 w,I64 segments,Bool talon)
{
I64 i,j;
for (i=0,j=segments;i<segments;i++,j--) {
dc->pen_width=w;
dc->color=BLACK;
GrLine3(dc,
j*x1/segments+i*x2/segments,
j*y1/segments+i*y2/segments,0,
(j-1)*x1/segments+(i+1)*x2/segments,
(j-1)*y1/segments+(i+1)*y2/segments,0);
dc->pen_width=w-2;
dc->color=YELLOW;
GrLine3(dc,
j*x1/segments+i*x2/segments,
j*y1/segments+i*y2/segments,0,
(j-1)*x1/segments+(i+1)*x2/segments,
(j-1)*y1/segments+(i+1)*y2/segments,0);
}
if (talon) {
if (y1<y2)
Sprite3B(dc,x1,y1,0,$IB,"<2>",BI=2$);
else
Sprite3B(dc,x1,y1,0,$IB,"<3>",BI=3$);
}
}
U0 ClawsDraw(CTask *task,CDC *dc)
{
F64 claws_up=1.0-claws_down;
I64 w=task->pix_width,h=task->pix_height;
dc->flags|=DCF_SYMMETRY;
DCSymmetrySet(dc,w>>1,0,w>>1,1);
ClawDraw(dc,HAND_X-30,HAND_Y-50*claws_up,HAND_X-5,HAND_Y, 22,4,TRUE);
ClawDraw(dc,HAND_X-10,HAND_Y-60*claws_up,HAND_X,HAND_Y, 22,4,TRUE);
ClawDraw(dc,HAND_X+10,HAND_Y-60*claws_up,HAND_X,HAND_Y, 22,4,TRUE);
ClawDraw(dc,HAND_X+30,HAND_Y-50*claws_up,HAND_X+5,HAND_Y, 22,4,TRUE);
ClawDraw(dc,HAND_X+25,HAND_Y+40*claws_up,HAND_X+5,HAND_Y, 22,4,TRUE);
ClawDraw(dc,HAND_X,HAND_Y,6*w/20,h,38,5,FALSE);
}
CDC *main_dc;
U0 DrawIt(CTask *task,CDC *dc)
{
main_dc->flags|=DCF_NO_TRANSPARENTS;
GrBlot(dc,0,0,main_dc);
if (claws_down)
ClawsDraw(task,dc);
}
/*
$SP,"<4>",BI=4$
$SP,"<5>",BI=5$
Cores render strips that +/- 15%. The cores check the panel map array
and render the panel for each square, marking-it done.
The depth buf is not locked in the graphic routines
so we get some glitches.
*/
I64 update_jiffy_limit;
U0 MPDrawIt(CTask *task,CDC *dc)
{
I64 j,strip_width,*s2w,x1,y1,z1, xx,yy,
xh,yh,zh,yh2,xh2,x1h,y1h,x1wa,y1wa,x1wb,y1wb,
x3,y3,z3,dd,dd_old,
cx=task->pix_width>>1,
cy=task->pix_height>>1;
Panel reg *tempp;
Bool w_on_map,h_on_map;
xx=x/(MAP_SCALE*COORDINATE_SCALE);
yy=y/(MAP_SCALE*COORDINATE_SCALE);
//World to screen coordinates
Mat4x4IdentEqu(dc->r);
Mat4x4RotZ(dc->r,é2);
Mat4x4RotX(dc->r,è);
Mat4x4RotZ(dc->r,é1);
DCMat4x4Set(dc,dc->r);
//Screen to world coordinates
//This gives us the vects for stepping through the grid in
//the direction the plane is facing. we step horizontally and vertically
//and use the reciprocal slope principle
//y=mx+b and y=(-1/m)x+b are perpendicular.
s2w=Mat4x4IdentNew;
Mat4x4RotZ(s2w,-é1);
Mat4x4RotX(s2w,-è);
Mat4x4RotZ(s2w,-é2);
xh=0;
yh=0;
zh=-256;
Mat4x4MulXYZ(s2w,&xh,&yh,&zh);
//The layer for core1 is not cleared automatically
//it is persistent. I have carefully syncronized to the update
//cycle initiated by core0 to prevent flicker.
dc->flags|=DCF_TRANSFORMATION;
dc->transform=&EDTransform;
dc->x=cx;
dc->y=cy;
//dc->x and the translation part of dc->r are ident in effect,
//but we use both to show-off. We could add offsets together and
//use one or the other.
x1=-x>>COORDINATE_BITS;
y1=-y>>COORDINATE_BITS;
z1=-z>>COORDINATE_BITS;
Mat4x4MulXYZ(dc->r,&x1,&y1,&z1);
Mat4x4TranslationEqu(dc->r,x1,y1,z1);
//This is a refinement.
if (Abs(è*180/ã)>90) {
x3=0;
y3=-cy;
z3=0;
Mat4x4MulXYZ(s2w,&x3,&y3,&z3);
xx+=x3;
yy+=y3;
}
if (Gs->num&1) {//alt left-right,right-left
yh2=-yh;
xh2=-xh;
} else {
yh2=yh;
xh2=xh;
}
//Calc starting point.
x1wa=xx<<8+xh*strip_height>>1/1.3*(Gs->num+1.15);
y1wa=yy<<8+yh*strip_height>>1/1.3*(Gs->num+1.15);
x1wb=0;
y1wb=0;
xh=-xh; //Back to front to help with depth.
yh=-yh;
//Take half steps to cover whole grid.
xh>>=1; yh>>=1;
xh2>>=1; yh2>>=1;
w_on_map=FALSE;
dd_old=MAX_I64;
for (strip_width=0;cnts.jiffies<update_jiffy_limit;strip_width++) {
x1h=x1wa;
y1h=y1wa;
h_on_map=FALSE;
for (j=0;j<strip_height && cnts.jiffies<update_jiffy_limit;j++) {
x1=x1h>>8; y1=y1h>>8;
if (0<=x1<MAP_WIDTH && 0<=y1<MAP_HEIGHT) {
if ((tempp=panels[y1][x1]) &&
!LBts(panels_processed_bitmap,tempp->num)) {
if (tempp->cnt>8*(1.1-Gs->idle_factor)) {
dc->color=tempp->color;
tempp->cnt=GrFillPoly3(dc,tempp->n,tempp->pts);
} else
tempp->cnt++;
}
h_on_map=TRUE;
} else if (h_on_map)
break;
x1h+=xh;
y1h+=yh;
}
if (h_on_map)
w_on_map=TRUE;
else if (w_on_map) {
strip_width=MAX_I64;
break;
}
x1wb-=yh2;
y1wb+=xh2;
if (strip_width&1) {
x1wa-=x1wb;
y1wa-=y1wb;
} else {
x1wa+=x1wb;
y1wa+=y1wb;
}
if (!w_on_map) {
dd=SqrI64(x1wa>>8-MAP_WIDTH>>1)+SqrI64(y1wa>>8-MAP_HEIGHT>>1);
if (dd>dd_old)
break;
dd_old=dd;
}
}
Free(s2w);
mp.strip_width[Gs->num]=strip_width;
LBtr(&mp.update_not_done_flags,Gs->num);
}
U0 CoreAPEagleDiveTask(CTask *master_task)
{
CDC *dc=DCAlias(main_dc,master_task);
while (!mp.app_done) {
while (!Bt(&mp.update_not_done_flags,Gs->num) && !mp.app_done)
Sleep(1);
if (!mp.app_done)
MPDrawIt(master_task,dc);
}
//We made an alias of this we don't want freed.
dc->depth_buf=NULL;
DCDel(dc);
LBtr(&mp.app_not_done_flags,Gs->num);
}
U0 DrawHorizon(CDC *dc)
{
I64 x1,y1,z1,x2,y2,z2,xh,yh,zh,*s2w=Mat4x4IdentNew,
cx=Fs->pix_width>>1,
cy=Fs->pix_height>>1;
CD3I32 p[4];
I32 *old_db=dc->depth_buf;
dc->depth_buf=NULL;
CColorROPU32 ground_color;
if (z/COORDINATE_SCALE<(WATER_ELEVATION+3)*MAP_SCALE)
ground_color=BLUE;
else
ground_color=LTGREEN;
Mat4x4IdentEqu(dc->r);
Mat4x4RotZ(dc->r,é2);
Mat4x4RotX(dc->r,è);
Mat4x4RotZ(dc->r,é1);
DCMat4x4Set(dc,dc->r);
dc->flags&=~DCF_TRANSFORMATION;
dc->transform=&EDTransform;
dc->x=cx;
dc->y=cy;
Mat4x4RotZ(s2w,-é1);
Mat4x4RotX(s2w,-è);
Mat4x4RotZ(s2w,-é2);
xh=0;
yh=0;
zh=-256;
Mat4x4MulXYZ(s2w,&xh,&yh,&zh);
Free(s2w);
x1=xh+yh*32; y1=yh-xh*32; z1=0;
(*dc->transform)(dc,&x1,&y1,&z1);
x2=xh-yh*32; y2=yh+xh*32; z2=0;
(*dc->transform)(dc,&x2,&y2,&z2);
DCClipLine(dc,&x1,&y1,&x2,&y2);
MemSet(p,0,sizeof(p));
if (x2<x1) {
SwapI64(&x1,&x2);
SwapI64(&y1,&y2);
}
if (!x1 && x2==dc->width-1) {
p[0].x=0;
p[0].y=0;
p[1].x=dc->width-1;
p[1].y=0;
p[2].x=dc->width-1;
p[2].y=y2;
p[3].x=0;
p[3].y=y1;
if (-ã/2<=é1<ã/2 ^^ -ã/2<=Wrap(è-ã/2)<ã/2)
dc->color=LTCYAN;
else
dc->color=ground_color;
GrFillPoly3(dc,4,p);
p[0].y=dc->height-1;
p[1].y=dc->height-1;
if (-ã/2<=é1<ã/2 ^^ -ã/2<=Wrap(è-ã/2)<ã/2)
dc->color=ground_color;
else
dc->color=LTCYAN;
GrFillPoly3(dc,4,p);
} else {
if (y2<y1) {
SwapI64(&x1,&x2);
SwapI64(&y1,&y2);
}
if (!y1 && y2==dc->height-1) {
p[0].x=0;
p[0].y=0;
p[1].x=0;
p[1].y=dc->height-1;
p[2].x=x2;
p[2].y=dc->height-1;
p[3].x=x1;
p[3].y=0;
if (x1<x2 ^^ -ã/2<=é1<ã/2 ^^ -ã/2<=Wrap(è-ã/2)<ã/2)
dc->color=LTCYAN;
else
dc->color=ground_color;
GrFillPoly3(dc,4,p);
p[0].x=dc->width-1;
p[1].x=dc->width-1;
if (x1<x2 ^^ -ã/2<=é1<ã/2 ^^ -ã/2<=Wrap(è-ã/2)<ã/2)
dc->color=ground_color;
else
dc->color=LTCYAN;
GrFillPoly3(dc,4,p);
}
}
dc->depth_buf=old_db;
}
U0 Core0EagleDive()
{
CDC *dc=DCAlias(main_dc,Fs);
I64 i,xx,yy,elev,height,bkcolor,cx=Fs->pix_width>>1,cy=Fs->pix_height>>1;
F64 min_strip_width,roll,pitch,heading;
Fish *tempf;
update_jiffy_limit=cnts.jiffies+JIFFY_FREQ/40;
MemSet(panels_processed_bitmap,0,(num_panels+7)>>3);
xx=x/(MAP_SCALE*COORDINATE_SCALE);
yy=y/(MAP_SCALE*COORDINATE_SCALE);
if (0<=xx<MAP_WIDTH && 0<=yy<MAP_HEIGHT)
elev=elevations[yy][xx];
else
elev=MAX_I64;
height=z/COORDINATE_SCALE-elev;
if (height<0) {
if (elev>WATER_ELEVATION*MAP_SCALE) {
dc->color=bkcolor=BLACK;
if (!game_over) {
GrRect(dc,0,0,dc->width,dc->height);
music.mute=TRUE;
Beep;
game_over=TRUE;
music.mute=FALSE;
}
} else
bkcolor=BLUE;
} else
bkcolor=LTCYAN;
if (height>=0 && !(-ã/4<=Wrap(è-ã)<ã/4)) {
DrawHorizon(dc);
DCDepthBufRst(dc);
mp.update_not_done_flags=1<<mp_cnt-1;
MPDrawIt(Fs,dc);
xx=x/COORDINATE_SCALE;
yy=y/COORDINATE_SCALE;
tempf=fish_root.next;
while (tempf!=&fish_root) {
if (SqrI64(tempf->p.x-xx)+SqrI64(tempf->p.y-yy)<MAP_SCALE*MAP_SCALE*20*20)
Sprite3(dc,tempf->p.x,tempf->p.y,tempf->p.z,$IB,"<1>",BI=1$);
tempf=tempf->next;
}
while (mp.update_not_done_flags)
Sleep(1);
min_strip_width=MAX_F64;
for (i=0;i<mp_cnt;i++)
min_strip_width=Min(min_strip_width,32.0*mp.strip_width[i]/(i+32.0));
strip_height=ClampI64(
strip_height*Clamp(0.25*min_strip_width/strip_height,0.9,1.1),
64,1024);
} else {
dc->color=bkcolor;
GrRect(dc,0,0,dc->width,dc->height);
}
dc->pen_width=2;
if (bkcolor==BLUE)
dc->color=WHITE;
else
dc->color=BLACK;
dc->flags&=~DCF_TRANSFORMATION;
GrLine3(dc,cx+5,cy,0,cx-5,cy,0);
GrLine3(dc,cx,cy+5,0,cx,cy-5,0);
heading=Wrap(é2,0);
roll=é1;
pitch=Wrap(-è-ã/2,-ã);
if (Abs(pitch)>ã/2) {
pitch=Wrap(ã-pitch,-ã);
roll=Wrap(roll+ã,-ã);
heading=Wrap(heading+ã,0);
}
GrPrint(dc,0,0,"Roll:%5.1f Pitch:%5.1f Heading:%5.1f",
roll*180/ã,pitch*180/ã,heading*180/ã);
GrPrint(dc,0,FONT_HEIGHT,"Height:%5d Score:%d High:%d [Core Strip:%3d]",
height,game_score,best_score,strip_height);
if (game_over && Blink) {
dc->color=RED;
GrPrint(dc,(Fs->pix_width-9*FONT_WIDTH)/2,
(Fs->pix_height-FONT_HEIGHT)/2,"Game Over");
} else if (tS-game_t0<5.0 && Blink) {
dc->color=WHITE;
GrPrint(dc,(Fs->pix_width-10*FONT_WIDTH)/2,
(Fs->pix_height-FONT_HEIGHT)/2,"Catch Fish");
}
//We made an alias of this we don't want freed.
dc->depth_buf=NULL;
DCDel(dc);
WinMgrSync;
}
Fish *FishFind(I64 x1,I64 y1,I64 *_dd)
{
I64 dd,best_dd=MAX_I64;
Fish *res=NULL,*tempf;
tempf=fish_root.next;
while (tempf!=&fish_root) {
dd=SqrI64(tempf->p.x-x1)+SqrI64(tempf->p.y-y1);
if (dd<best_dd) {
best_dd=dd;
res=tempf;
}
tempf=tempf->next;
}
*_dd=best_dd;
return res;
}
#define ANIMATE_MS 10
U0 AnimateTask(I64)
{//Steadily moves the airplane fwd.
I64 *s2w,x1,y1,z1,dx,dy,dz,dd;
F64 t0=tS,mS,é,d,pitch;
Fish *tempf;
while (TRUE) {
mS=1000*(tS-t0);
t0=tS;
if (!game_over) {
//Screen to world coordinates
s2w=Mat4x4IdentNew;
Mat4x4RotZ(s2w,-é1);
Mat4x4RotX(s2w,-è);
Mat4x4RotZ(s2w,-é2);
dx=0;dy=0;dz=1<<16;
Mat4x4MulXYZ(s2w,&dx,&dy,&dz);
x-=speed*mS*COORDINATE_SCALE*dx/1<<16;
y-=speed*mS*COORDINATE_SCALE*dy/1<<16;
z-=speed*mS*COORDINATE_SCALE*dz/1<<16;
Free(s2w);
x1=x/COORDINATE_SCALE; y1=y/COORDINATE_SCALE; z1=z/COORDINATE_SCALE;
if (z1<(WATER_ELEVATION+3)*MAP_SCALE) {
if (z1<WATER_ELEVATION*MAP_SCALE) {
z=WATER_ELEVATION*MAP_SCALE*COORDINATE_SCALE;
pitch=Wrap(-è-ã/2,-ã);
if (Abs(pitch)>ã/2) {
pitch=Wrap(ã-pitch,-ã);
if (pitch<-ã/8)
è+=mS/1000.0*Sign(3*ã/8-è);
} else if (pitch<-ã/8)
è+=mS/1000.0*Sign(-3*ã/8-è);
}
speed=1.0;
if (tempf=FishFind(x1,y1,&dd)) {
d=Sqrt(dd);
x1-=tempf->p.x;
y1-=tempf->p.y;
é=ACos((dx*x1+dy*y1)/(d*1<<16));
if (é>0 && d<MAP_SCALE*4)
claws_down=Saw(d,MAP_SCALE*4);
else
claws_down=0.01;
if (d<MAP_SCALE*2) {
game_score++;
if (game_score>best_score)
best_score=game_score;
QueRem(tempf);
Free(tempf);
music.mute=TRUE;
Snd(1000); Sleep(200); Snd(0);
music.mute=FALSE;
}
}
} else {
claws_down=0;
if (-ã/4<=è<=ã/4)
speed+=0.0005;
else if (-3*ã/4<=è<=3*ã/4)
speed+=0.0001;
else
speed-=0.0001;
speed=Clamp(speed+(0.0005-0.0002*Abs(è)/(ã/4)),0.1,5.0);
}
}
WinMgrSync;
}
}
U0 MPEnd()
{
update_jiffy_limit=0;
mp.app_not_done_flags=1<<mp_cnt-1-1;
mp.app_done=TRUE;
//Wait for all cores to exit
while (mp.app_not_done_flags)
Sleep(1);
}
U0 TaskEndCB()
{
MPEnd;
Exit;
}
U0 SongTask(I64)
{//Song by Terry A. Davis
Fs->task_end_cb=&SndTaskEndCB;
MusicSettingsRst;
music.stacatto_factor=0.2;
while (TRUE) {
Play("3eBDEDBDEDFEEDFEED");
Play("BDEDBDEDFEEDFEED");
}
}
U0 Init()
{
I64 i,xx,yy;
main_dc=DCNew(GR_WIDTH,GR_HEIGHT);
critical_section_flag=0;
game_over=FALSE;
game_score=0;
MemSet(&mp,0,sizeof(MPCtrl));
QueInit(&fish_root);
InitMap;
DCDepthBufAlloc(main_dc);
strip_height=128;
è =-90.0*ã/180.0;
é1= 0.0*ã/180.0;
é2= 0.0*ã/180.0;
speed = 2.5;
claws_down=0;
x=MAP_WIDTH>>1 *COORDINATE_SCALE*MAP_SCALE;
y=MAP_HEIGHT>>1*COORDINATE_SCALE*MAP_SCALE;
z=64 *COORDINATE_SCALE*MAP_SCALE;
xx=x/(MAP_SCALE*COORDINATE_SCALE);
yy=y/(MAP_SCALE*COORDINATE_SCALE);
z+=elevations[yy][xx]*COORDINATE_SCALE;
for (i=1;i<mp_cnt;i++)
Spawn(&CoreAPEagleDiveTask,Fs,"AP EagleDive",i);
Fs->task_end_cb=&TaskEndCB;
game_t0=tS;
}
U0 CleanUp()
{
Fish *tempf=fish_root.next,*tempf1;
Panel *tempp=panel_root,*tempp1;
MPEnd;
while (tempf!=&fish_root) {
tempf1=tempf->next;
QueRem(tempf);
Free(tempf);
tempf=tempf1;
}
while (tempp) {
tempp1=tempp->next;
Free(tempp->pts);
Free(tempp);
tempp=tempp1;
}
Free(panels_processed_bitmap);
DCDel(main_dc);
}
U0 EagleDive()
{
I64 ch,sc;
F64 pp,tt1,tt2;
SettingsPush; //See $LK,"SettingsPush",A="MN:SettingsPush"$
MenuPush(
"File {"
" Abort(,CH_SHIFT_ESC);"
" Exit(,CH_ESC);"
"}"
"Play {"
" Restart(,'\n');"
" Down(,,SC_CURSOR_UP);"
" Up(,,SC_CURSOR_DOWN);"
" Left(,,SC_CURSOR_LEFT);"
" Right(,,SC_CURSOR_RIGHT);"
"}"
);
AutoComplete;
WinBorder;
WinMax;
DocCursor;
DocClear;
"Initializing...\n";
Fs->song_task=Spawn(&SongTask,NULL,"Song",,Fs);
Init;
Fs->animate_task=Spawn(&AnimateTask,NULL,"Animate",,Fs);
Fs->draw_it=&DrawIt;
try //in case <CTRL-ALT-c> is pressed.
do {
if (ScanKey(&ch,&sc)) {
pp=è; tt1=é1; tt2=é2;
switch (ch) {
case 0:
switch (sc.u8[0]) {
case SC_CURSOR_DOWN:
è +=-CTRLS_SCALE*Cos(tt1);
é2+=-CTRLS_SCALE*Sin(tt1)*Sin(è);
break;
case SC_CURSOR_UP:
è -=-CTRLS_SCALE*Cos(tt1);
é2-=-CTRLS_SCALE*Sin(tt1)*Sin(è);
break;
case SC_CURSOR_RIGHT:
é1+=CTRLS_SCALE;
break;
case SC_CURSOR_LEFT:
é1-=CTRLS_SCALE;
break;
}
break;
case '\n':
Fs->draw_it=NULL;
CleanUp;
WinMgrSync;
Init;
Fs->draw_it=&DrawIt;
break;
}
é1=Wrap(é1);
è =Wrap(è);
é2=Wrap(é2);
} else
Core0EagleDive;
} while (ch!=CH_SHIFT_ESC && ch!=CH_ESC);
catch
PutExcept;
SettingsPop;
CleanUp;
RegWriteBranch("TempleOS/EagleDive","I64 best_score=%d;\n",best_score);
MenuPop;
}
EagleDive;
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