diff options
Diffstat (limited to 'Minecraft.World/BoundingBox.cpp')
| -rw-r--r-- | Minecraft.World/BoundingBox.cpp | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/Minecraft.World/BoundingBox.cpp b/Minecraft.World/BoundingBox.cpp new file mode 100644 index 00000000..eb828ed0 --- /dev/null +++ b/Minecraft.World/BoundingBox.cpp @@ -0,0 +1,166 @@ +#include "stdafx.h" +#include "BoundingBox.h" +#include "Direction.h" +#include "JavaMath.h" + +BoundingBox::BoundingBox() +{ + // 4J added initialisers + x0 = 0; + y0 = 0; + z0 = 0; + x1 = 0; + y1 = 0; + z1 = 0; +} + +BoundingBox *BoundingBox::getUnknownBox() +{ + return new BoundingBox(INT_MAX, INT_MAX, INT_MAX, INT_MIN, INT_MIN, INT_MIN ); +} + +BoundingBox *BoundingBox::orientBox(int footX, int footY, int footZ, int offX, int offY, int offZ, int width, int height, int depth, int orientation) +{ + switch (orientation) + { + default: + return new BoundingBox(footX + offX, footY + offY, footZ + offZ, footX + width - 1 + offX, footY + height - 1 + offY, footZ + depth - 1 + offZ); + case Direction::NORTH: + // foot is at x0, y0, z1 + return new BoundingBox(footX + offX, footY + offY, footZ - depth + 1 + offZ, footX + width - 1 + offX, footY + height - 1 + offY, footZ + offZ); + case Direction::SOUTH: + // foot is at x0, y0, z0 + return new BoundingBox(footX + offX, footY + offY, footZ + offZ, footX + width - 1 + offX, footY + height - 1 + offY, footZ + depth - 1 + offZ); + case Direction::WEST: + // foot is at x1, y0, z0, but width and depth are flipped + return new BoundingBox(footX - depth + 1 + offZ, footY + offY, footZ + offX, footX + offZ, footY + height - 1 + offY, footZ + width - 1 + offX); + case Direction::EAST: + // foot is at x0, y0, z0, but width and depth are flipped + return new BoundingBox(footX + offZ, footY + offY, footZ + offX, footX + depth - 1 + offZ, footY + height - 1 + offY, footZ + width - 1 + offX); + } +} + +BoundingBox::BoundingBox(BoundingBox *other) +{ + this->x0 = other->x0; + this->y0 = other->y0; + this->z0 = other->z0; + this->x1 = other->x1; + this->y1 = other->y1; + this->z1 = other->z1; +} + +BoundingBox::BoundingBox(int x0, int y0, int z0, int x1, int y1, int z1) +{ + this->x0 = x0; + this->y0 = y0; + this->z0 = z0; + this->x1 = x1; + this->y1 = y1; + this->z1 = z1; +} + +BoundingBox::BoundingBox(int x0, int z0, int x1, int z1) +{ + this->x0 = x0; + this->z0 = z0; + this->x1 = x1; + this->z1 = z1; + + // the bounding box for this constructor is limited to world size, + // excluding bedrock level + this->y0 = 1; + this->y1 = 512; +} + +bool BoundingBox::intersects(BoundingBox *other) +{ + return !(this->x1 < other->x0 || this->x0 > other->x1 || this->z1 < other->z0 || this->z0 > other->z1 || this->y1 < other->y0 || this->y0 > other->y1); +} + +bool BoundingBox::intersects(int x0, int y0, int z0, int x1, int y1, int z1) +{ + return !(this->x1 < x0 || this->x0 > x1 || this->z1 < z0 || this->z0 > z1 || this->y1 < y0 || this->y0 > y1); +} + +bool BoundingBox::intersects(int x0, int z0, int x1, int z1) +{ + return !(this->x1 < x0 || this->x0 > x1 || this->z1 < z0 || this->z0 > z1); +} + +void BoundingBox::expand(BoundingBox *other) +{ + this->x0 = Math::_min(this->x0, other->x0); + this->y0 = Math::_min(this->y0, other->y0); + this->z0 = Math::_min(this->z0, other->z0); + this->x1 = Math::_max(this->x1, other->x1); + this->y1 = Math::_max(this->y1, other->y1); + this->z1 = Math::_max(this->z1, other->z1); +} + +BoundingBox *BoundingBox::getIntersection(BoundingBox *other) +{ + if (!intersects(other)) + { + return NULL; + } + BoundingBox *result = new BoundingBox(); + result->x0 = Math::_max(this->x0, other->x0); + result->y0 = Math::_max(this->y0, other->y0); + result->z0 = Math::_max(this->z0, other->z0); + result->x1 = Math::_min(this->x1, other->x1); + result->y1 = Math::_min(this->y1, other->y1); + result->z1 = Math::_min(this->z1, other->z1); + + return result; +} + +void BoundingBox::move(int dx, int dy, int dz) +{ + x0 += dx; + y0 += dy; + z0 += dz; + x1 += dx; + y1 += dy; + z1 += dz; +} + +bool BoundingBox::isInside(int x, int y, int z) +{ + return (x >= x0 && x <= x1 && z >= z0 && z <= z1 && y >= y0 && y <= y1); +} + +int BoundingBox::getXSpan() +{ + return x1 - x0 + 1; +} + +int BoundingBox::getYSpan() +{ + return y1 - y0 + 1; +} + +int BoundingBox::getZSpan() +{ + return z1 - z0 + 1; +} + +int BoundingBox::getXCenter() +{ + return x0 + (x1 - x0 + 1) / 2; +} + +int BoundingBox::getYCenter() +{ + return y0 + (y1 - y0 + 1) / 2; +} + +int BoundingBox::getZCenter() +{ + return z0 + (z1 - z0 + 1) / 2; +} + +wstring BoundingBox::toString() +{ + return L"(" + _toString<int>(x0) + L", " + _toString<int>(y0) + L", " + _toString<int>(z0) + L"; " + _toString<int>(x1) + L", " + _toString<int>(y1) + L", " + _toString<int>(z1) + L")"; +}
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