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Cache intermediate values in draw_mine_exit_cover

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vLKp committed Aug 6, 2019
1 parent 7f4c57b commit ec234e0b8e2e92890b8eb2f7808dbffab2c0cfff
Showing with 27 additions and 22 deletions.
  1. +27 −22 similar/main/endlevel.cpp
@@ -139,7 +139,6 @@ static void draw_stars(grs_canvas &, const d_unique_endlevel_state::starfield_ty
static int find_exit_side(const object_base &obj);
static void generate_starfield(d_unique_endlevel_state::starfield_type &stars);
static void start_endlevel_flythrough(flythrough_data *flydata,const vmobjptr_t obj,fix speed);
static void draw_mine_exit_cover(grs_canvas &);

#if defined(DXX_BUILD_DESCENT_II)
constexpr array<const char, 24> movie_table{{
@@ -898,34 +897,40 @@ static int find_exit_side(const object_base &obj)
return best_side;
}

inline void prepare_mine_exit_cover_point(g3s_point& p, const vms_vector &v, fix u, fix r)
static void draw_mine_exit_cover(grs_canvas &canvas)
{
vms_vector tv;
vm_vec_scale_add(tv,v,mine_exit_orient.uvec,u);
vm_vec_scale_add2(tv,mine_exit_orient.rvec,r);
p = g3_rotate_point(tv);
}

void draw_mine_exit_cover(grs_canvas &canvas)
{
int of=10;
fix u=i2f(6),d=i2f(9),ur=i2f(14),dr=i2f(17);
const int of = 10;
const fix u = i2f(6), d = i2f(9), ur = i2f(14), dr = i2f(17);
const uint8_t color = BM_XRGB(0, 0, 0);
array<cg3s_point *, 4> pointlist;
vms_vector v;
g3s_point p0, p1, p2, p3;

vm_vec_scale_add(v,mine_exit_point,mine_exit_orient.fvec,i2f(of));

prepare_mine_exit_cover_point(p0,v,+u,+ur);
prepare_mine_exit_cover_point(p1,v,+u,-ur);
prepare_mine_exit_cover_point(p2,v,-d,-dr);
prepare_mine_exit_cover_point(p3,v,-d,+dr);

pointlist[0] = &p0;
pointlist[1] = &p1;
pointlist[2] = &p2;
pointlist[3] = &p3;
auto mrd = mine_exit_orient.rvec;
{
vms_vector vu;
vm_vec_scale_add(vu, v, mine_exit_orient.uvec, u);
auto mru = mrd;
vm_vec_scale(mru, ur);
vms_vector p;
g3_rotate_point(p0, (vm_vec_add(p, vu, mru), p));
g3_rotate_point(p1, (vm_vec_sub(p, vu, mru), p));
}
{
vms_vector vd;
vm_vec_scale_add(vd, v, mine_exit_orient.uvec, -d);
vm_vec_scale(mrd, dr);
vms_vector p;
g3_rotate_point(p2, (vm_vec_sub(p, vd, mrd), p));
g3_rotate_point(p3, (vm_vec_add(p, vd, mrd), p));
}
const array<cg3s_point *, 4> pointlist{{
&p0,
&p1,
&p2,
&p3,
}};

g3_draw_poly(canvas, pointlist.size(), pointlist, color);
}

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