205 lines
78 KiB
HolyC
Executable File
205 lines
78 KiB
HolyC
Executable File
#define THRUST 100
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Bool blast_off;
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CMass m1, //Bottom of rocket
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m2; //Top of rocket
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CSpring s;
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#define ROCKET_HEIGHT 40
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#define GROUND_Y (GR_HEIGHT-3*FONT_HEIGHT)
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$BG,11$
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$SP,"<1>",BI=1$
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$BG$
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$SP,"",BI=2$
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CDC *dc2;
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U0 DrawIt(CTask *task,CDC *dc)
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{
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I64 i,x,y,cx=GR_WIDTH/2,cy=GROUND_Y;
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Bool engine_on;
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F64 nozzle_angle,é=Arg(m2.x-m1.x,m2.y-m1.y);
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Sprite3(dc,0,GROUND_Y,0,$IB,"<2>",BI=2$);
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if (Bt(kbd.down_bitmap,SC_CURSOR_UP)) {
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nozzle_angle=0;
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engine_on=TRUE;
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} else if (Bt(kbd.down_bitmap,SC_CURSOR_LEFT)) {
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nozzle_angle=ã/8;
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engine_on=TRUE;
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} else if (Bt(kbd.down_bitmap,SC_CURSOR_RIGHT)) {
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nozzle_angle=-ã/8;
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engine_on=TRUE;
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} else
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engine_on=FALSE;
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if (engine_on) {
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x=m1.x-10*Cos(é+nozzle_angle);
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y=m1.y-10*Sin(é+nozzle_angle);
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for (i=0;i<6;i++) {
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if ((i^winmgr.updates)&1)
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dc->color=YELLOW;
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else
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dc->color=RED;
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GrLine(dc,cx+(m1.x+i*Cos(é-ã/2)),cy-(m1.y+i*Sin(é-ã/2)),cx+x,cy-y);
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GrLine(dc,cx+(m1.x+i*Cos(é+ã/2)),cy-(m1.y+i*Sin(é+ã/2)),cx+x,cy-y);
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}
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for (i=0;i<10;i++) {
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switch (RandU16&3) {
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case 0: dc2->color=WHITE; break;
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case 1: dc2->color=LTGRAY; break;
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case 2: dc2->color=DKGRAY; break;
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case 3: dc2->color=BLACK; break;
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}
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GrPlot(dc2,cx+(x+RandU16%12-6),cy-(y+RandU16%12-6));
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}
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Snd(22);
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} else
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Snd;
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Sprite3ZB(dc,cx+(m1.x+m2.x)/2,cy-(m1.y+m2.y)/2,0,$IB,"<1>",BI=1$,-é);
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}
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U0 MyDerivative(CMathODE *,F64,COrder2D3 *,COrder2D3 *)
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{
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Bool engine_on;
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F64 nozzle_angle,é=Arg(m2.state->x-m1.state->x,m2.state->y-m1.state->y);
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if (Bt(kbd.down_bitmap,SC_CURSOR_UP)) {
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nozzle_angle=0;
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engine_on=TRUE;
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} else if (Bt(kbd.down_bitmap,SC_CURSOR_LEFT)) {
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nozzle_angle=ã/8;
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engine_on=TRUE;
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} else if (Bt(kbd.down_bitmap,SC_CURSOR_RIGHT)) {
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nozzle_angle=-ã/8;
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engine_on=TRUE;
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} else
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engine_on=FALSE;
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if (engine_on) {
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m1.DstateDt->DxDt+=THRUST*Cos(é+nozzle_angle);
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m1.DstateDt->DyDt+=THRUST*Sin(é+nozzle_angle);
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}
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if (blast_off) {
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m1.DstateDt->DyDt-=25; //Gravity
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m2.DstateDt->DyDt-=25;
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}
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}
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U0 Init()
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{
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DocClear;
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"$$BG,LTCYAN$$$$GREEN$$Up, Left, Right$$FG$$%h*c",ToI64(GROUND_Y/FONT_HEIGHT),'\n';
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blast_off=FALSE;
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//We don't clear que links.
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MemSet(&m1.start,0,offset(CMass.end)-offset(CMass.start));
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m1.y=0;
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MemSet(&m2.start,0,offset(CMass.end)-offset(CMass.start));
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m2.y=ROCKET_HEIGHT;
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MemSet(&s.start,0,offset(CSpring.end)-offset(CSpring.start));
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s.end1=&m1;
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s.end2=&m2;
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s.rest_len=ROCKET_HEIGHT;
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s.const=10000;
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DCFill;
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}
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U0 TaskEndCB()
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{
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DCFill;
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SndTaskEndCB;
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}
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U0 Rocket()
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{
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CMathODE *ode=ODENew(0,1e-2,ODEF_HAS_MASSES);
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SettingsPush; //See $LK,"SettingsPush",A="MN:SettingsPush"$
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Fs->text_attr=YELLOW<<4+BLUE;
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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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" Up(,,SC_CURSOR_UP);"
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" UpLeft(,,SC_CURSOR_LEFT);"
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" UpRight(,,SC_CURSOR_RIGHT);"
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"}"
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);
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AutoComplete;
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WinBorder;
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WinMax;
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DocCursor;
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DocClear;
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dc2=DCAlias;
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Fs->task_end_cb=&TaskEndCB;
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ode->derive=&MyDerivative;
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ode->drag_v2=0.002;
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ode->drag_v3=0.00001;
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ode->acceleration_limit=5e3;
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Init;
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QueIns(&m1,ode->last_mass);
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QueIns(&m2,ode->last_mass);
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QueIns(&s,ode->last_spring);
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QueIns(ode,Fs->last_ode);
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Fs->draw_it=&DrawIt;
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try {
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GetKey;
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blast_off=TRUE;
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while (TRUE) {
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switch (GetChar(,FALSE)) {
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case '\n':
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Init;
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GetKey;
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blast_off=TRUE;
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break;
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case CH_ESC:
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case CH_SHIFT_ESC:
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goto rk_done;
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}
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}
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rk_done:
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} catch
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PutExcept;
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QueRem(ode);
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ODEDel(ode);
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DocClear;
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SettingsPop;
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DCFill;
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DCDel(dc2);
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MenuPop;
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}
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Rocket;
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