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-rw-r--r--src/tool/selection_tool.rs24
1 files changed, 14 insertions, 10 deletions
diff --git a/src/tool/selection_tool.rs b/src/tool/selection_tool.rs
index 49efba9..c790734 100644
--- a/src/tool/selection_tool.rs
+++ b/src/tool/selection_tool.rs
@@ -1,15 +1,26 @@
+//! Selection of items on the map.
+//!
+//! When selecting items on the map, the editor goes into a different mode than when editing a
+//! specific kind of item. Actions that are available for specific types of items become
+//! unavailable, while other actions that make use of the properties to a wide range of items
+//! become available instead.
+//! For this reason, the selection tool can be thought of as a kind of meta tool over tools.
+
use super::Tool;
+use crate::colours::DEFAULT_COLOURS;
use crate::map::Map;
use crate::math::{Rect, Surface, Vec2};
use crate::transform::Transform;
use raylib::core::drawing::{RaylibDraw, RaylibDrawHandle};
-use crate::colours::DEFAULT_COLOURS;
+/// The selection tool makes it possible to select any item on the map when activated.
pub struct SelectionTool {
selection_rect: Option<(Vec2<f64>, Vec2<f64>)>,
}
impl SelectionTool {
+ /// Create a new selection tool. There should be only one such tool per program instance and it
+ /// should be created in the editor.
pub fn new() -> Self {
Self {
selection_rect: None,
@@ -31,15 +42,8 @@ impl Tool for SelectionTool {
fn draw(&self, rld: &mut RaylibDrawHandle, transform: &Transform) {
if let Some((pos1, pos2)) = self.selection_rect {
let rect_px = transform.rect_m_to_px(&Rect::bounding_rect(pos1, pos2));
- rld.draw_rectangle_rec(
- rect_px,
- DEFAULT_COLOURS.selection_rect
- );
- rld.draw_rectangle_lines_ex(
- rect_px,
- 4,
- DEFAULT_COLOURS.selection_rect_outline
- );
+ rld.draw_rectangle_rec(rect_px, DEFAULT_COLOURS.selection_rect);
+ rld.draw_rectangle_lines_ex(rect_px, 4, DEFAULT_COLOURS.selection_rect_outline);
}
}