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Code Issues Releases Wiki Activity

precise mouseover computation

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This commit is contained in:
Zeno Rogue 2018-08-19 22:53:51 +02:00
parent db4f622588
commit 676ea3a1f9
1 changed files with 31 additions and 0 deletions
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31
graph.cpp
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@ -5136,6 +5136,34 @@ transmatrix cview() {
return ypush(vid.yshift) * sphereflip * View;
}
void precise_mouseover() {
if(!mouseover) return;
cell *omouseover = mouseover;
for(int loop = 0; loop < 10; loop++) {
bool found = false;
if(!gmatrix.count(mouseover)) return;
hyperpoint r_mouseh = inverse(gmatrix[mouseover]) * mouseh;
for(int i=0; i<mouseover->type; i++) {
hyperpoint h1 = get_corner_position(mouseover, (i+mouseover->type-1) % mouseover->type);
hyperpoint h2 = get_corner_position(mouseover, i);
using namespace hyperpoint_vec;
hyperpoint hx = r_mouseh - h1;
h2 = h2 - h1;
ld z = h2[1] * hx[0] - h2[0] * hx[1];
ld z0 = h2[1] * h1[0] - h2[0] * h1[1];
if(z * z0 > 0) {
mouseover2 = mouseover;
mouseover = mouseover->move(i);
found = true;
break;
}
}
if(!found) return;
}
// probably some error... just return the original
mouseover = omouseover;
}
void drawthemap() {
callhooks(hooks_drawmap);
@ -5217,6 +5245,9 @@ void drawthemap() {
drawWormSegments();
drawBlizzards();
drawArrowTraps();
precise_mouseover();
ivoryz = false;
linepatterns::drawAll();