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|
//! Element creation base
//!
//! The actual editor environment sits here. This especially means all tools that require low-level
//! access to the data of items currently being created. While this may be subject to change, there is
//! currently a difference between things that are being created (inside the editor) and things that
//! are part of the environment (the map).
use crate::config::Config;
use crate::input::{Binding, Input};
use crate::map::Map;
use crate::snapping::Snapper;
use crate::tool::*;
use crate::transform::Transform;
use raylib::core::drawing::RaylibDrawHandle;
use raylib::{RaylibHandle, RaylibThread};
use std::collections::HashMap;
/// The editor containing all tools and currently the map of the stuff that has been created.
pub struct Editor {
map: Map,
/// HashMap that matches the ToolType with its proper activation key and of course the tool
/// itself.
tools: HashMap<ToolType, (Box<dyn Tool>, Binding)>,
active: ToolType,
config: Config,
}
impl Editor {
/// Create a new editor with all tools necessary. There should be only one editor per program
/// instance.
pub fn new(rl: &mut RaylibHandle, rlt: &RaylibThread, config: Config) -> Self {
let map = Map::new(rl, rlt);
let mut tools: HashMap<ToolType, (Box<dyn Tool>, Binding)> =
HashMap::with_capacity(ToolType::NumTools as usize);
tools.insert(
ToolType::RectRoomTool,
(
Box::new(RectRoomTool::new()),
config.tool_activation_binds.rect_room.clone(),
),
);
tools.insert(
ToolType::PolygonRoomTool,
(
Box::new(PolygonRoomTool::new()),
config.tool_activation_binds.polygon_room.clone(),
),
);
tools.insert(
ToolType::WallTool,
(
Box::new(WallTool::new()),
config.tool_activation_binds.wall.clone(),
),
);
tools.insert(
ToolType::IconTool,
(
Box::new(IconTool::new(
config.icon_binds.clone(),
map.icon_renderer(),
)),
config.tool_activation_binds.icon.clone(),
),
);
tools.insert(
ToolType::DeletionTool,
(
Box::new(DeletionTool::new()),
config.tool_activation_binds.deletion.clone(),
),
);
tools.insert(
ToolType::SelectionTool,
(
Box::new(SelectionTool::new()),
config.tool_activation_binds.selection.clone(),
),
);
assert_eq!(ToolType::NumTools as usize, tools.len());
Self {
map,
tools,
active: ToolType::RectRoomTool,
config,
}
}
/// Get the currently active tool. Since the every tool exists only once, it is entirely indexable
/// by its type, which is what is actually returned.
pub fn active(&self) -> ToolType {
self.active
}
/// Set the currently active tool. Any process currently going on in a different tool will be
/// aborted.
pub fn set_active(&mut self, tool: ToolType) {
if tool != self.active {
self.tools.get_mut(&self.active).unwrap().0.deactivate();
self.active = tool;
self.tools
.get_mut(&self.active)
.expect("{:?} is not a Tool in the Editor. Maybe you forgot to register it?")
.0
.activate();
}
}
/// Update the internal editor data where necessary and handle selecting different tools, aswell
/// as updating the currently active tool. Should be called once every frame.
pub fn update(
&mut self,
rl: &mut RaylibHandle,
transform: &Transform,
snapper: &Snapper,
input: &mut Input,
) {
// Handle keybindings for tool change
for (&tool_type, (_, activation_bind)) in self.tools.iter() {
if input.poll_global(&activation_bind) {
// Don't do anything if the tool does not change.
if tool_type == self.active {
break;
}
// Activate the tool of which the key binding has been pressed.
self.set_active(tool_type);
break;
}
}
let mouse_pos_m = transform.point_px_to_m(&rl.get_mouse_position().into());
let snapped_mouse_pos = snapper.snap(mouse_pos_m);
// Update the currently active tool
let active_tool = &mut self.tools.get_mut(&self.active).unwrap().0;
active_tool.update(&self.map, &snapped_mouse_pos);
// Handle common keybindings many of the tools have.
if input.poll_global(&self.config.tool_general_binds.place_single) {
active_tool.place_single(&mut self.map, &snapped_mouse_pos);
}
if input.poll_global(&self.config.tool_general_binds.finish) {
active_tool.finish(&mut self.map);
}
if input.poll_global(&self.config.tool_general_binds.abort) {
active_tool.abort();
}
// Handle custom keybindings in case the tool has any.
active_tool.handle_custom_bindings(&mut self.map, input);
}
/// Draw all tools and in case of the active tool also what is currently being edited by it, if
/// that exists.
pub fn draw_tools(&self, rld: &mut RaylibDrawHandle, transform: &Transform) {
for (tool, _) in self.tools.values() {
tool.draw(rld, transform);
}
}
/// Get the world containing all finished elements.
pub fn map(&self) -> &Map {
&self.map
}
/// Get the world containing all finished elements mutably.
pub fn map_mut(&mut self) -> &mut Map {
&mut self.map
}
}
|
