From ebf13bcd8e8ab799c56961e6bc1779bd8031a8dc Mon Sep 17 00:00:00 2001
From: tom barrett <spalf0@gmail.com>
Date: Mon, 19 Aug 2019 02:26:17 -0500
Subject: created abstraction between world and game, added temlate for
 dialogtrees

---
 src/world.rs | 119 +++++++++++++++++++++++------------------------------------
 1 file changed, 47 insertions(+), 72 deletions(-)

(limited to 'src/world.rs')

diff --git a/src/world.rs b/src/world.rs
index abbb9c1..76048b9 100644
--- a/src/world.rs
+++ b/src/world.rs
@@ -1,102 +1,77 @@
-use ggez::event::{EventHandler, KeyCode, KeyMods};
-use ggez::graphics::{self, spritebatch::SpriteBatch, DrawParam, FilterMode, Image, WrapMode};
-use ggez::{filesystem, Context, GameResult};
+use ggez::event::KeyCode;
+use ggez::graphics::spritebatch::SpriteBatch;
+use ggez::nalgebra::distance;
+use ggez::{filesystem, Context};
 
-use crate::camera::Camera;
-use crate::dialogbox::DialogBox;
+use crate::constants;
+use crate::dialogbox::DialogTree;
 use crate::entity::Operable;
 use crate::map::Map;
-use crate::npc::NPC;
+use crate::npc::{Character, NPC};
 use crate::player::Player;
 use crate::tileset::Tileset;
 
+#[derive(Clone)]
 pub struct World {
     map: Map,
-    spritebatch: SpriteBatch,
-    dialogbox: DialogBox,
-    camera: Camera,
-    player: Player,
+    pub player: Player,
     npcs: Vec<NPC>,
 }
 
-impl World {
-    pub fn new(context: &mut Context) -> GameResult<World> {
-        let mut image = Image::new(context, "/tileset.png")?;
-        image.set_filter(FilterMode::Nearest);
-        image.set_wrap(WrapMode::Mirror, WrapMode::Mirror);
+impl Operable for World {
+    fn update(&mut self) {
+        self.map.update();
+        self.player.update();
+        for npc in self.npcs.iter_mut() {
+            npc.update();
+        }
+    }
 
-        let tileset = Tileset::new(filesystem::open(context, "/tileset.tsx")?);
+    fn draw(&self, spritebatch: &mut SpriteBatch) {
+        self.map.draw(spritebatch);
+        self.player.draw(spritebatch);
+        for npc in self.npcs.iter() {
+            npc.draw(spritebatch);
+        }
+    }
+}
 
-        let map = Map::new(filesystem::open(context, "/map.tmx")?, &tileset);
+impl World {
+    pub fn new(context: &mut Context) -> World {
+        let tileset = Tileset::new(filesystem::open(context, "/tileset.tsx").unwrap());
+        let map = Map::new(filesystem::open(context, "/map.tmx").unwrap(), &tileset);
 
-        Ok(World {
+        World {
             map: map.clone(),
-            spritebatch: SpriteBatch::new(image),
-            dialogbox: DialogBox::new(context),
-            camera: Camera::new(map.get_dimensions()),
             player: Player::new(
                 &tileset,
-                map.get_spawn_points("player")[0],
+                map.get_spawn_points(Character::Player)[0],
                 map.get_dimensions(),
             ),
-            npcs: NPC::build_npcs(&tileset, &map),
-        })
-    }
-}
-
-impl EventHandler for World {
-    fn update(&mut self, _context: &mut Context) -> GameResult {
-        self.map.update();
-        self.player.update();
-        for npc in self.npcs.iter_mut() {
-            npc.update();
+            npcs: NPC::build_npcs(context, &tileset, &map),
         }
-
-        self.camera.give_center(self.player.get_position());
-        Ok(())
     }
 
-    fn draw(&mut self, context: &mut Context) -> GameResult {
-        graphics::clear(context, graphics::BLACK);
-
-        self.map.draw(&mut self.spritebatch);
-        self.player.draw(&mut self.spritebatch);
-        for npc in self.npcs.iter_mut() {
-            npc.draw(&mut self.spritebatch);
+    pub fn get_dialogtree(&mut self) -> Option<DialogTree> {
+        let player_position = self.player.entity.position;
+        if let Some(npc) = self.npcs.iter_mut().find(|npc| {
+            constants::INTERACT_DISTANCE > distance(&player_position, &npc.entity.position)
+        }) {
+            Some(npc.get_dialogtree())
+        } else {
+            None
         }
+    }
 
-        graphics::draw(
-            context,
-            &self.spritebatch,
-            DrawParam::default().dest(self.camera.draw),
-        )?;
-
-        self.dialogbox.draw(context)?;
-
-        self.spritebatch.clear();
-
-        graphics::present(context)?;
-
-        Ok(())
+    pub fn give_key_up(&mut self, keycode: KeyCode) {
+        self.player.give_key_up(keycode);
     }
 
-    fn key_up_event(&mut self, _: &mut Context, keycode: KeyCode, _: KeyMods) {
-        self.player.give_key_up(keycode)
+    pub fn give_key_down(&mut self, keycode: KeyCode) {
+        self.player.give_key_down(keycode);
     }
 
-    fn key_down_event(
-        &mut self,
-        context: &mut Context,
-        keycode: KeyCode,
-        _: KeyMods,
-        repeat: bool,
-    ) {
-        if !repeat {
-            match keycode {
-                KeyCode::Q => context.continuing = false,
-                KeyCode::E => self.dialogbox.visible = !self.dialogbox.visible,
-                _ => self.player.give_key_down(keycode),
-            }
-        }
+    pub fn get_dimensions(&self) -> (f32, f32) {
+        self.map.get_dimensions()
     }
 }
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