diff options
Diffstat (limited to 'main/camera.cpp')
| -rw-r--r-- | main/camera.cpp | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/main/camera.cpp b/main/camera.cpp index 70a58405..3a0238b7 100644 --- a/main/camera.cpp +++ b/main/camera.cpp @@ -6,15 +6,15 @@ namespace floormat { void app::do_camera(float dt) { auto camera_offset = _shader.camera_offset(); - constexpr float pixels_per_second = 384; + constexpr float pixels_per_second = 768; if (keys[key::camera_up]) - camera_offset += Vector2(0, 1) * dt * pixels_per_second; + camera_offset += Vector2{0, 1} * dt * pixels_per_second; else if (keys[key::camera_down]) - camera_offset += Vector2(0, -1) * dt * pixels_per_second; + camera_offset += Vector2{0, -1} * dt * pixels_per_second; if (keys[key::camera_left]) - camera_offset += Vector2(1, 0) * dt * pixels_per_second; + camera_offset += Vector2{1, 0} * dt * pixels_per_second; else if (keys[key::camera_right]) - camera_offset += Vector2(-1, 0) * dt * pixels_per_second; + camera_offset += Vector2{-1, 0} * dt * pixels_per_second; { const auto max_camera_offset = Vector2(windowSize() * 10); @@ -41,4 +41,25 @@ void app::update_window_scale(Vector2i sz) _shader.set_scale(Vector2{sz}); } +void app::recalc_cursor_tile() +{ + if (_cursor_pos) + { + constexpr Vector2 base_offset = + tile_shader::project({(float)TILE_MAX_DIM*BASE_X*TILE_SIZE[0], + (float)TILE_MAX_DIM*BASE_Y*TILE_SIZE[1], 0}); + _cursor_tile = pixel_to_tile(Vector2(*_cursor_pos) - base_offset); + } + else + _cursor_tile = std::nullopt; +} + +global_coords app::pixel_to_tile(Vector2 position) const +{ + const Vector2 px = position - Vector2{windowSize()}*.5f - _shader.camera_offset(); + const Vector2 vec = tile_shader::unproject(px) / Vector2{TILE_SIZE[0]*.5f, TILE_SIZE[1]*.5f} + Vector2{.5f, .5f}; + const auto x = (std::int32_t)std::floor(vec[0]), y = (std::int32_t)std::floor(vec[1]); + return { x, y }; +} + } // namespace floormat |