326 lines
6.1 KiB
HolyC
Executable File
326 lines
6.1 KiB
HolyC
Executable File
//Uses $LK,"fixed-point",A="FI:::/Demo/Lectures/FixedPoint.HC"$.
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class MyMass:CMass
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{
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Bool collision;
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};
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#define MAP_WIDTH 2048
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#define MAP_HEIGHT (GR_HEIGHT-3*FONT_HEIGHT)
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I64 gun_x,gun_y,active_map=0,gun_recoil;
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F64 gun_é;
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CDC *map_dcs[2]={NULL,NULL};
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I16 elevs[MAP_WIDTH];
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F64 wind_x;
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#define DUST_NUM 512
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I64 dust_x[DUST_NUM],dust_y[DUST_NUM];
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CMathODE *ode=NULL;
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$SP,"<1>",BI=1$
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$SP,"<2>",BI=2$
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U0 DrawIt(CTask *task,CDC *dc)
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{
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CDC *map=map_dcs[active_map&1];
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MyMass *tmpm;
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F64 é=gun_é;
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I64 i,x,y,w,
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h=-task->horz_scroll.pos,
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v=-task->vert_scroll.pos;
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task->horz_scroll.min=0;
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task->horz_scroll.max=MAP_WIDTH-task->pix_width;
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task->vert_scroll.min=0;
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task->vert_scroll.max=MAP_HEIGHT-task->pix_height;
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map->flags|=DCF_NO_TRANSPARENTS;
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GrBlot(dc,h,v,map);
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Sprite3(dc,gun_x+h,gun_y+v,0,$IB,"<2>",BI=2$);
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if (é<-ã/2) {
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dc->flags|=DCF_SYMMETRY|DCF_JUST_MIRROR;
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DCSymmetrySet(dc,gun_x+h,0,gun_x+h,1);
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é=-ã-é;
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}
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Sprite3ZB(dc,
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gun_x+h-gun_recoil*Cos(é),
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gun_y+v-gun_recoil*Sin(é)-10,0,$IB,"<1>",BI=1$,é);
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dc->flags&=~(DCF_SYMMETRY|DCF_JUST_MIRROR);
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tmpm=ode->next_mass;
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dc->color=BLACK;
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map->color=ROP_COLLISION;
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map->bkcolor=LTCYAN;
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while (tmpm!=&ode->next_mass) {
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map->collision_cnt=0;
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GrCircle(map,tmpm->x,tmpm->y,2);
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if (map->collision_cnt)
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tmpm->collision=TRUE;
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GrCircle(dc,tmpm->x+h,tmpm->y+v,2);
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tmpm=tmpm->next;
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}
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dc->color=LTGRAY;
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w=tS*wind_x;
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for (i=0;i<DUST_NUM;i++) {
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x=(dust_x[i]+w)%MAP_WIDTH;
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y=dust_y[i];
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if (y<elevs[x])
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GrPlot(dc,x+h,y+v);
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}
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}
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U0 MyDerivative(CMathODE *ode,F64,COrder2D3 *,COrder2D3 *)
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{
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MyMass *tmpm=ode->next_mass;
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while (tmpm!=&ode->next_mass) {
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tmpm->DstateDt->DyDt+=1000.0*tmpm->mass;
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tmpm->DstateDt->DxDt+=25.0*wind_x;
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tmpm=tmpm->next;
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}
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}
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U0 DrawMap()
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{
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CDC *map=map_dcs[(active_map+1)&1];
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I64 x;
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map->color=LTCYAN;
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GrRect(map,0,0,MAP_WIDTH,MAP_HEIGHT);
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map->color=BLACK;
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for (x=1;x<MAP_WIDTH;x++)
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GrLine(map,x-1,elevs[x-1],x,elevs[x]);
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map->color=BROWN;
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GrFloodFill(map,0,MAP_HEIGHT-1,FALSE);
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active_map++;
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}
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U0 FireTask(I64)
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{
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MyMass *tmpm;
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I64 i;
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if (gun_recoil) return;
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tmpm=CAlloc(sizeof(MyMass),Fs->parent_task);
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tmpm->mass=10.0;
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tmpm->drag_profile_factor=0.1;
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tmpm->x=gun_x+27*Cos(gun_é);
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tmpm->y=gun_y-15+27*Sin(gun_é);
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tmpm->DxDt=600.0*Cos(gun_é);
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tmpm->DyDt=600.0*Sin(gun_é);
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tmpm->collision=FALSE;
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while (sys_task_being_scrn_updated==Fs->parent_task)
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Yield;
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QueIns(tmpm,ode->last_mass);
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Fs->task_end_cb=&SndTaskEndCB;
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for (i=0;i<60;i++) {
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Snd(50*Rand+10);
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Sleep(2);
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gun_recoil=i/12;
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}
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for (i=0;i<=60;i++) {
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Sleep(1);
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gun_recoil=5-i/12;
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}
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}
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U0 ManageShots()
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{
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I64 i;
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MyMass *tmpm,*tmpm1;
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Bool chged=FALSE;
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tmpm=ode->next_mass;
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while (tmpm!=&ode->next_mass) {
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tmpm1=tmpm->next;
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if (!(0<=tmpm->x<MAP_WIDTH) ||
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tmpm->collision) {
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QueRem(tmpm);
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for (i=tmpm->x-4;i<=tmpm->x+4;i++)
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if (0<=i<MAP_WIDTH)
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elevs[i]=ClampI64(elevs[i]+10-2*AbsI64(i-tmpm->x),0,MAP_HEIGHT-2);
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Free(tmpm);
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chged=TRUE;
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}
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tmpm=tmpm1;
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}
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if (chged)
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DrawMap;
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}
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U0 MoveTask(I64)
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{
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static F64 quit_time=0;
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if (quit_time)
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quit_time=tS+0.1;
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else {
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Snd(34);
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Fs->task_end_cb=&SndTaskEndCB;
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quit_time=tS+0.1;
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while (quit_time>tS)
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Yield;
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quit_time=0;
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}
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}
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U0 Init()
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{
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CDC *map;
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I64 i,x,y,dy;
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if (!map_dcs[0])
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map_dcs[0]=DCNew(MAP_WIDTH,MAP_HEIGHT);
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if (!map_dcs[1])
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map_dcs[1]=DCNew(MAP_WIDTH,MAP_HEIGHT);
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map=map_dcs[active_map&1];
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Fs->horz_scroll.pos=0;
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Fs->vert_scroll.pos=0;
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y=ToI64(0.7*MAP_HEIGHT)<<32;
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dy=0;
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for (x=0;x<MAP_WIDTH;x++) {
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dy=ClampI64(SignI64(RandI16)<<30+dy,-3<<32,3<<32);
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y=ClampI64(y+dy,ToI64(0.3*MAP_HEIGHT)<<32,(MAP_HEIGHT-2)<<32);
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elevs[x]=y.i32[1];
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}
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gun_x=RandU32%(MAP_WIDTH-100)+50;
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gun_y=elevs[gun_x];
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gun_é=0;
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gun_recoil=0;
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for (x=gun_x-20;x<=gun_x+20;x++)
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elevs[x]=gun_y;
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wind_x=RandI16/250.0;
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for (i=0;i<DUST_NUM;i++) {
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dust_x[i]=RandU16%MAP_WIDTH;
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dust_y[i]=RandU16%MAP_HEIGHT;
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}
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ode=ODENew(0,1e-4,ODEF_HAS_MASSES);
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ode->derive=&MyDerivative;
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ode->drag_v2=0.002;
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ode->drag_v3=0.0001;
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ode->acceleration_limit=5e5;
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QueIns(ode,Fs->last_ode);
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Fs->horz_scroll.min=0;
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Fs->horz_scroll.max=MAP_WIDTH-Fs->pix_width;
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Fs->horz_scroll.pos=gun_x-Fs->pix_width/2;
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Fs->vert_scroll.min=0;
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Fs->vert_scroll.max=MAP_HEIGHT-Fs->pix_height;
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Fs->vert_scroll.pos=0;
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TaskDerivedValsUpdate;
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DrawMap;
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}
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U0 CleanUp(CMathODE *ode)
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{
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if (ode) {
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QueRem(ode);
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QueDel(&ode->next_mass,TRUE);
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ODEDel(ode);
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}
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}
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U0 BigGuns()
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{
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I64 ch,sc;
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PopUpOk(
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"I refuse to rip-off the original\n"
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"so this is intentionally crappy\n"
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"and included for demonstration\n"
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"purposes.\n\n"
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"Write games, don't play them.\n");
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PopUpOk("The map scrolls.\n");
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SettingsPush; //See $LK,"SettingsPush",A="MN:SettingsPush"$
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MenuPush(
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"File {"
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" Abort(,CH_SHIFT_ESC);"
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" Exit(,CH_ESC);"
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"}"
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"Play {"
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" Restart(,'\n');"
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" Fire(,CH_SPACE);"
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" Left(,,SC_CURSOR_LEFT);"
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" Right(,,SC_CURSOR_RIGHT);"
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"}"
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);
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AutoComplete;
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WinBorder(ON);
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WinMax;
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DocCursor;
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DocClear;
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DocScroll;
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Init;
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Fs->draw_it=&DrawIt;
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try {
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while (TRUE) {
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while (ScanKey(&ch,&sc))
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switch (ch) {
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case 0:
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switch (sc.u8[0]) {
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case SC_CURSOR_RIGHT:
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gun_é+=2.0*ã/180;
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if (gun_é>0)
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gun_é=0;
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else
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Spawn(&MoveTask,NULL,"Move",,Fs);
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break;
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case SC_CURSOR_LEFT:
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gun_é-=2.0*ã/180;
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if (gun_é<-ã)
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gun_é=-ã;
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else
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Spawn(&MoveTask,NULL,"Move",,Fs);
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break;
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}
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break;
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case '\n':
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CleanUp(ode);
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Init;
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break;
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case CH_SPACE:
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Spawn(&FireTask,NULL,"Fire",,Fs);
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break;
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case CH_SHIFT_ESC:
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case CH_ESC:
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goto bg_done;
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}
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ManageShots;
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Refresh;
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}
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bg_done:
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} catch
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PutExcept;
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SettingsPop;
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DCDel(map_dcs[0]); map_dcs[0]=NULL;
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DCDel(map_dcs[1]); map_dcs[1]=NULL;
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CleanUp(ode);
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MenuPop;
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}
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BigGuns;
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