geom: tighten things up a bit

src/poc/geom.c

@@ -32,38 +32,15 @@ int main(void){
       if(ncplane_putwc_yx(n, 0, i, i % 2 == flipmode % 2 ? L'◪' : L'◩') <= 0){
         goto err;
       }
-      switch(flipmode % 6){
-        case 0: w = L'🞯'; break;
-        case 1: w = L'🞰'; break;
-        case 2: w = L'🞱'; break;
-        case 3: w = L'🞲'; break;
-        case 4: w = L'🞳'; break;
-        case 5: w = L'🞴'; break;
-        default: goto err;
-      }
+      w = L'🞯' + (flipmode % 6);
       if(ncplane_putwc_yx(n, 1, i, w) <= 0){
         goto err;
       }
-      switch((i + flipmode) % 5){
-        case 0: w = L'🞅'; break;
-        case 1: w = L'🞆'; break;
-        case 2: w = L'🞇'; break;
-        case 3: w = L'🞈'; break;
-        case 4: w = L'🞉'; break;
-        default: goto err;
-      }
+      w = L'🞅' + (i + flipmode) % 5;
       if(ncplane_putwc_yx(n, 2, i, w) <= 0){
         goto err;
       }
-      switch((flipmode + 5) % 6){
-        case 0: w = L'🞵'; break;
-        case 1: w = L'🞶'; break;
-        case 2: w = L'🞷'; break;
-        case 3: w = L'🞸'; break;
-        case 4: w = L'🞹'; break;
-        case 5: w = L'🞺'; break;
-        default: goto err;
-      }
+      w = L'🞵' + (flipmode + 5) % 6;
       if(ncplane_putwc_yx(n, 3, i, w) <= 0){
         goto err;
       }
@@ -84,36 +61,14 @@ int main(void){
       if(ncplane_putwc_yx(n, 4, i, w) <= 0){
         goto err;
       }
-      if(i % 2){
-        switch(flipmode % 4){
-          case 0: w = L'◴'; break;
-          case 1: w = L'◵'; break;
-          case 2: w = L'◶'; break;
-          case 3: w = L'◷'; break;
-          default: goto err;
-        }
-      }else{
-        switch(flipmode % 4){
-          case 0: w = L'◰'; break;
-          case 1: w = L'◳'; break;
-          case 2: w = L'◲'; break;
-          case 3: w = L'◱'; break;
-          default: goto err;
-        }
-      }
+      w = ((i % 2) ? L'◴' : L'◰') + flipmode % 4;
       if(ncplane_putwc_yx(n, 5, i, w) <= 0){
         goto err;
       }
       if(ncplane_putwc_yx(n, 6, i, i % 2 == flipmode % 2 ? L'▱' : L'▰') <= 0){
         goto err;
       }
-      switch(flipmode % 4){
-        case 0: w = L'▤'; break;
-        case 1: w = L'▨'; break;
-        case 2: w = L'▥'; break;
-        case 3: w = L'▧'; break;
-        default: goto err;
-      }
+      w = L'▤' + flipmode % 4;
       if(ncplane_putwc_yx(n, 7, i, w) <= 0){
         goto err;
       }