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author | Aki <please@ignore.pl> | 2023-02-03 23:53:33 +0100 |
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committer | Aki <please@ignore.pl> | 2023-02-03 23:53:33 +0100 |
commit | 6b7d0e795bc57856a1bcaaab08229bb0869e8516 (patch) | |
tree | f22e1b1cd1499d2c4a5346be0534c305386aca58 /engine/src/Camera.cpp | |
parent | ec3ae653a0965c6c19920ed46030a0abde0fee1c (diff) | |
download | kurator-6b7d0e795bc57856a1bcaaab08229bb0869e8516.zip kurator-6b7d0e795bc57856a1bcaaab08229bb0869e8516.tar.gz kurator-6b7d0e795bc57856a1bcaaab08229bb0869e8516.tar.bz2 |
Extracted from/to camera viewport transformations to camera itself
Diffstat (limited to 'engine/src/Camera.cpp')
-rw-r--r-- | engine/src/Camera.cpp | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/engine/src/Camera.cpp b/engine/src/Camera.cpp new file mode 100644 index 0000000..60e8aa1 --- /dev/null +++ b/engine/src/Camera.cpp @@ -0,0 +1,39 @@ +#include <kurator/engine/Camera.h> + +#include <raylib.h> + +#include <kurator/engine/Point.h> + + +namespace kurator +{ +namespace engine +{ + + +static auto viewport() -> Point; + + +Point +Camera::to_world(const Point& screen) const +{ + return screen - viewport().scale(1.0 / (2.0 * scale)) + offset; +} + + +Point +Camera::to_screen(const Point& world) const +{ + return (world - offset).scale(scale) + viewport().scale(0.5); +} + + +Point +viewport() +{ + return {static_cast<double>(GetScreenWidth()), static_cast<double>(GetScreenHeight())}; +} + + +} // namespace engine +} // namespace kurator |