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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 |