Beco: Difference between revisions

Beco (view source)

Revision as of 18:42, 11 September 2018

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@@ Line 43: / Line 43: @@
 === Getting the custom data for a given coordinate ===
-{{Empty section}}
+{{expand section}}
+At 0x7100E41C40 in Switch 1.5.0:
+<syntaxhighlight lang="c++">
+unsigned int __fastcall eco::getCurrentAreaNum(float posX, float posZ, Ecosystem *ecosystem, EcoMapInfo *info)
+{
+  float _x; // s2
+  float _z; // s0
+  int divisor; // w10
+  int numEntries; // w12
+  float v8; // s4
+  signed int c_x; // w8
+  float v10; // s0
+  float v11; // s1
+  int c_z; // w9
+  int idx; // w9
+  u32 *v14; // x9
+  __int64 v15; // x10
+  __int64 v16; // x11
+  EcoMapEntry *tables; // x12
+  EcoMapEntry *_entryEnd; // x11
+  EcoMapEntry *_entry; // x10
+  signed int totalLength; // w9
+  unsigned int result; // w0
+  _x = -5000.0;
+  if ( posX >= -5000.0 )
+  {
+    _x = posX;
+    if ( posX > 4999.0 )
+      _x = 4999.0;
+  }
+  _z = -4000.0;
+  if ( posZ >= -4000.0 )
+  {
+    _z = posZ;
+    if ( posZ > 4000.0 )
+      _z = 4000.0;
+  }
+  divisor = info->map->divisor;
+  numEntries = info->map->numTables - 2;
+  if ( (float)(_x + 5000.0) < 0.0 )
+    v8 = -0.5;
+  else
+    v8 = 0.5;
+  c_x = (signed int)(float)((float)(_x + 5000.0) + v8);
+  v10 = _z + 4000.0;
+  if ( v10 < 0.0 )
+    v11 = -0.5;
+  else
+    v11 = 0.5;
+  c_z = (signed int)(float)(v10 + v11) / divisor;
+  if ( c_z <= numEntries )
+    numEntries = (signed int)(float)(v10 + v11) / divisor;
+  if ( c_z >= 0 )
+    idx = numEntries;
+  else
+    idx = 0;
+  v14 = &info->tableOffsets[idx];
+  if ( divisor == 0xA )
+    c_x = (0x66666667LL * c_x >> 0x22) + ((unsigned __int64)(0x66666667LL * c_x) >> 0x3F);
+  v15 = (signed int)*v14;
+  v16 = (signed int)v14[1];
+  if ( (signed int)v15 >= (signed int)v16 )
+    return 0xFFFFFFFF;
+  tables = info->tables;
+  _entryEnd = (EcoMapEntry *)((char *)tables + 2 * v16);
+  _entry = (EcoMapEntry *)((char *)tables + 2 * v15);
+  totalLength = 0;
+  result = 0xFFFFFFFF;
+  while ( 1 )
+  {
+    totalLength += _entry->length;
+    if ( c_x < totalLength )
+      break;
+    ++_entry;
+    if ( _entry >= _entryEnd )
+      return result;
+  }
+  return _entry->value;
+}
+</syntaxhighlight>
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