Merge pull request #24 from LordSentox/refactor

Refactor to make interaction between tools easier

1 files changed, 63 insertions, 0 deletions

diff --git a/src/tool/selection_tool.rs b/src/tool/selection_tool.rs
new file mode 100644
index 0000000..49efba9
--- /dev/null
+++ b/src/tool/selection_tool.rs
@@ -0,0 +1,63 @@
+use super::Tool;
+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;
+
+pub struct SelectionTool {
+    selection_rect: Option<(Vec2<f64>, Vec2<f64>)>,
+}
+
+impl SelectionTool {
+    pub fn new() -> Self {
+        Self {
+            selection_rect: None,
+        }
+    }
+}
+
+impl Tool for SelectionTool {
+    fn deactivate(&mut self) {
+        self.selection_rect = None;
+    }
+
+    fn update(&mut self, _map: &Map, mouse_pos_m: &Vec2<f64>) {
+        if let Some((_, ref mut pos2)) = &mut self.selection_rect {
+            *pos2 = *mouse_pos_m;
+        }
+    }
+
+    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
+            );
+        }
+    }
+
+    fn place_single(&mut self, map: &mut Map, mouse_pos_m: &Vec2<f64>) {
+        if let Some((pos1, pos2)) = self.selection_rect {
+            // Select all items on the map that are inside of the selection rectangle
+            let bounds = Rect::bounding_rect(pos1, pos2);
+            for element in map.elements_mut() {
+                // TODO: Make it possible to do this additively by custom keybinding.
+                element.set_selected(bounds.contains_rect(&element.bounding_rect()));
+            }
+            self.selection_rect = None;
+        } else {
+            self.selection_rect = Some((*mouse_pos_m, *mouse_pos_m));
+        }
+    }
+
+    fn abort(&mut self) {
+        self.selection_rect = None;
+    }
+}