From d9f58950e8cd58b7048f5f505db91323e0237063 Mon Sep 17 00:00:00 2001 From: Stanislaw Halik Date: Mon, 17 Oct 2022 16:37:25 +0200 Subject: a --- src/camera-offset.cpp | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 src/camera-offset.cpp (limited to 'src/camera-offset.cpp') diff --git a/src/camera-offset.cpp b/src/camera-offset.cpp new file mode 100644 index 00000000..47cb690d --- /dev/null +++ b/src/camera-offset.cpp @@ -0,0 +1,27 @@ +#include "camera-offset.hpp" +#include "shaders/tile-shader.hpp" + +namespace floormat { + +with_shifted_camera_offset::with_shifted_camera_offset(tile_shader& shader, std::int32_t x, std::int32_t y) : + with_shifted_camera_offset{shader, chunk_coords{std::int16_t(x), std::int16_t(y)}} +{ + ASSERT(std::abs(x) < (1 << 15) && std::abs(y) < (1 << 15)); +} + +with_shifted_camera_offset::with_shifted_camera_offset(tile_shader& shader, const chunk_coords c) : + s{shader}, + orig_offset(shader.camera_offset()) +{ + const auto offset = tile_shader::project({float(c.x)*TILE_MAX_DIM*TILE_SIZE[0], + float(c.y)*TILE_MAX_DIM*TILE_SIZE[1], + 0}); + s.set_camera_offset(orig_offset + offset); +} + +with_shifted_camera_offset::~with_shifted_camera_offset() +{ + s.set_camera_offset(orig_offset); +} + +} // namespace floormat -- cgit v1.2.3