justin
1 line
1.5 KiB
C++
1 line
1.5 KiB
C++
// the asteroids-ish game inside of the automap
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#include "DoomDef.h"
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#include "AM_map.h"
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#include "AM_oids.h"
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fixed_t ff_x, ff_y, ff_w, ff_h;
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amo_bullet_t amo_bullets[AMO_MAXBULLETS];
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boolean AM_oInRock(amo_rock_t *rock, fixed_t x, fixed_t y)
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{
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fixed_t dx2, dy2;
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boolean rc = false;
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dx2 = FixedMul(x-rock->x, x-rock->x);
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dy2 = FixedMul(y-rock->y, y-rock->y);
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if (dx2+dy2 <= rock->r2) rc = true;
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return rc;
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}
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void AM_oUpdateBullets(void)
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{
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int i;
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amo_bullet_t *a;
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for (a=amo_bullets;a<amo_bullets + AMO_MAXBULLETS;a++)
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{
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if (a->x != -1)
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{
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// move bullet
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a->x += a->vx;
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a->y += a->vy;
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// destroy bullet if it left the screen
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if (a->x < ff_x || a->x >= ff_x + ff_w || a->y < ff_y
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|| a->y >= ff_y + ff_h)
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{
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a->x = -1;
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continue;
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}
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// check for collision with any rock
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for (r=amo_rocks;r<amo_rocks + AMO_MAXROCKS;r++)
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{
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if (r->x != -1 && AM_oInRock(r, a->x, a->y))
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{
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a->x = r->x = -1; // if collision, destroy bullet and rock
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break;
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}
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}
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}
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}
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}
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void AM_oTicker(void)
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{
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AM_oUpdateBullets();
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AM_oUpdateShip();
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AM_oUpdateRocks();
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AM_oUpdateShrapnel();
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}
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void AM_oDrawer(void)
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{
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}
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void AM_oInitData(void)
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{
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int i;
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for (i=0;i<AMO_MAXBULLETS;i++) amo_bullets[i].x = -1;
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for (i=0;i<AMO_MAXROCKS;i++) amo_rocks[i].x = -1;
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ff_x = f_x << FRACBITS;
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ff_y = f_y << FRACBITS;
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ff_w = f_w << FRACBITS;
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ff_h = f_h << FRACBITS;
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}
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void AM_oStart(void)
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{
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AM_oInitData();
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}
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