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Code Issues Releases Wiki Activity

gp::loc now better

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Zeno Rogue
2019-11-27 00:41:52 +01:00
parent 0cb93afad7
commit 6bb3a076da
2 changed files with 38 additions and 34 deletions
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64
goldberg.cpp
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@@ -13,7 +13,28 @@ namespace hr {
EX namespace gp {
#if HDR
typedef pair<int, int> loc;
struct loc : pair<int, int> {
loc() {}
loc(int x, int y) : pair<int,int> (x,y) {}
loc operator+(loc e2) {
return loc(first+e2.first, second+e2.second);
}
loc operator-(loc e2) {
return loc(first-e2.first, second-e2.second);
}
loc operator*(loc e2) {
return loc(first*e2.first-second*e2.second,
first*e2.second + e2.first*second + (S3 == 3 ? second*e2.second : 0));
}
loc operator*(int i) {
return loc(first*i, second*i);
}
};
struct local_info {
int last_dir;
@@ -25,42 +46,25 @@ EX namespace gp {
EX local_info draw_li;
EX loc operator+(loc e1, loc e2) {
return make_pair(e1.first+e2.first, e1.second+e2.second);
}
EX loc operator-(loc e1, loc e2) {
return make_pair(e1.first-e2.first, e1.second-e2.second);
}
EX loc operator*(loc e1, loc e2) {
return make_pair(e1.first*e2.first-e1.second*e2.second,
e1.first*e2.second + e2.first*e1.second + (S3 == 3 ? e1.second*e2.second : 0));
}
loc operator*(loc e1, int i) {
return loc(e1.first*i, e1.second*i);
}
EX loc eudir(int d) {
if(S3 == 3) {
d %= 6; if (d < 0) d += 6;
switch(d) {
case 0: return make_pair(1, 0);
case 1: return make_pair(0, 1);
case 2: return make_pair(-1, 1);
case 3: return make_pair(-1, 0);
case 4: return make_pair(0, -1);
case 5: return make_pair(1, -1);
default: return make_pair(0, 0);
case 0: return loc(1, 0);
case 1: return loc(0, 1);
case 2: return loc(-1, 1);
case 3: return loc(-1, 0);
case 4: return loc(0, -1);
case 5: return loc(1, -1);
default: return loc(0, 0);
}
}
else switch(d&3) {
case 0: return make_pair(1, 0);
case 1: return make_pair(0, 1);
case 2: return make_pair(-1, 0);
case 3: return make_pair(0, -1);
default: return make_pair(0, 0);
case 0: return loc(1, 0);
case 1: return loc(0, 1);
case 2: return loc(-1, 0);
case 3: return loc(0, -1);
default: return loc(0, 0);
}
}