Added some helpers to camera and range lib to replace the standard ranges library due to some issues clangd has with the gcc implementation

This commit is contained in:
2021-12-12 03:48:56 -05:00
parent a328246a1e
commit cd37945791
8 changed files with 63 additions and 27 deletions

View File

@@ -0,0 +1,33 @@
//
// Created by m on 12/11/21.
//
#include "camera.hpp"
Rectangle Camera::get_bounds() {
return cached_bounds;
}
void Camera::move_camera(Point new_center) {
this->center = new_center;
this->cached_bounds = calculate_bounds();
}
void Camera::set_bounds(int max_x, int max_y) {
this->max_x = max_x;
this->max_y = max_y;
this->cached_bounds = calculate_bounds();
}
Rectangle Camera::calculate_bounds() {
int minx = std::clamp(center.x-(tiles_rendered_x/2), 0, std::max(0,max_x - tiles_rendered_x));
int miny = std::clamp(center.y-(tiles_rendered_y/2), 0, std::max(0,max_y - tiles_rendered_y));
int width = std::min(tiles_rendered_x, max_x-minx);
int height = std::min(tiles_rendered_y, max_y-miny);
return Rectangle{minx, miny, width, height};
}
Point Camera::camera_coords_to_screen_coords(Point camera_coord) {
auto bounds = get_bounds();
return Point{camera_coord.x-bounds.x, camera_coord.y-bounds.y};
}