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use super::Tool;
use crate::grid::snap_to_grid;
use crate::map_data::MapData;
use crate::math::{Rect, Vec2};
use crate::transform::Transform;
use raylib::core::drawing::{RaylibDraw, RaylibDrawHandle};
use raylib::ffi::{Color, MouseButton};
use raylib::RaylibHandle;
pub struct RoomTool {
/// The rectangle that is currently being drawn by the user. Once it is finished, it will be
/// pushed into the room_rects.
unfinished_rect: Option<(Vec2<f32>, Vec2<f32>)>,
}
impl RoomTool {
/// Create a new room tool where no rooms have been drawn yet.
pub fn new() -> Self {
Self {
unfinished_rect: None,
}
}
}
impl Tool for RoomTool {
fn active_update(&mut self, map_data: &mut MapData, rl: &RaylibHandle, transform: &Transform) {
let mouse_pos_m = transform.point_px_to_m(rl.get_mouse_position().into());
// Update the currently drawn rectangle, if it exists
if let Some((_, ref mut pos2)) = &mut self.unfinished_rect {
*pos2 = snap_to_grid(mouse_pos_m, 0.5);
}
// Start or finish drawing the currently unfinished rectangle
if rl.is_mouse_button_pressed(MouseButton::MOUSE_LEFT_BUTTON) {
if let Some((pos1, pos2)) = self.unfinished_rect {
map_data.rooms_mut().push(Rect::bounding_rect(pos1, pos2));
self.unfinished_rect = None;
} else {
let snapped_mouse_pos = snap_to_grid(mouse_pos_m, 0.5);
self.unfinished_rect = Some((snapped_mouse_pos, snapped_mouse_pos))
}
}
// Abort drawing the room (if any) in case the right mouse button was pressed.
if rl.is_mouse_button_pressed(MouseButton::MOUSE_RIGHT_BUTTON) {
self.unfinished_rect = None;
}
}
fn draw(&self, map_data: &MapData, rld: &mut RaylibDrawHandle, transform: &Transform) {
// Draw all finished rectangles.
for &rect in map_data.rooms() {
rld.draw_rectangle_rec(
transform.rect_m_to_px(rect),
Color {
r: 180,
g: 180,
b: 180,
a: 255,
},
);
}
// Do the same for the unfinished rectangle
if let Some((pos1, pos2)) = self.unfinished_rect {
rld.draw_rectangle_rec(
transform.rect_m_to_px(Rect::bounding_rect(pos1, pos2)),
Color {
r: 150,
g: 200,
b: 150,
a: 255,
},
);
}
}
}
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