import from play

Cargo.toml

@@ -3,6 +3,13 @@ name = "graph-paper-engine"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
+bevy = { version = "0.11", features = ["dynamic_linking"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json5 = "0.1.0"
+
+[profile.dev]
+opt-level = 1
+
+[profile.dev.package."*"]
+opt-level = 3

src/main.rs

@@ -1,3 +1,187 @@
+use bevy::prelude::*;
+
+mod map;
+use crate::map::{Direction, example_map};
+
+// use std::f32::consts::PI;
+
+// Our camera
+// also, the position of the party
+#[derive(Component)]
+struct BlobberCam;
+
+
+const HEIGHT: f32 = 0.5;
+const WALLOFFSET: f32 = 0.5;
+
+fn grid2world(gridx: usize, gridy: usize) -> (f32, f32) {
+    return (-(gridx as f32), gridy as f32);
+}
+
+fn wall(gridx: usize, gridy: usize,
+        mesh: Handle<Mesh>,
+        material: Handle<StandardMaterial>,
+        side: Direction)
+        -> PbrBundle {
+    let (worldx, worldz) = grid2world(gridx, gridy);
+
+    let (xoffset, zoffset, facing) = match side {
+        Direction::North => (WALLOFFSET, 0., Vec3::NEG_X),
+        Direction::South => (- WALLOFFSET, 0., Vec3::X),
+        Direction::East  => (0., WALLOFFSET, Vec3::Z),
+        Direction::West  => (0., - WALLOFFSET, Vec3::NEG_Z),
+    };
+
+    return PbrBundle {
+        mesh: mesh,
+        material: material,
+        transform: Transform::from_xyz(worldx + xoffset,
+                                       HEIGHT,
+                                       worldz + zoffset)
+            .looking_to(Vec3::Y, facing),
+        ..default()
+    };
+}
+
+
 fn main() {
-    println!("Hello, world!");
+    App::new()
+        .insert_resource(Msaa::default())
+        .add_plugins(DefaultPlugins)
+        .add_systems(Startup, setup)
+        .add_systems(Update, move_blobber)
+        .add_systems(Update, bevy::window::close_on_esc)
+        .run();
+}
+
+/// set up a simple 3D scene
+fn setup(
+    mut commands: Commands,
+    asset_server: Res<AssetServer>,
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<StandardMaterial>>,
+) {
+    let wall_texture_handle = asset_server.load("textures/this end up.png");
+
+    let wall_material_handle = materials.add(StandardMaterial {
+        base_color_texture: Some(wall_texture_handle.clone()),
+        alpha_mode: AlphaMode::Blend,
+        unlit: true,
+        ..default()
+    });
+
+    let door_texture_handle = asset_server.load("textures/this end door.png");
+
+    let door_material_handle = materials.add(StandardMaterial {
+        base_color_texture: Some(door_texture_handle.clone()),
+        alpha_mode: AlphaMode::Blend,
+        unlit: true,
+        ..default()
+    });
+
+    let wall_mesh = meshes.add(shape::Plane::from_size(1.0).into());
+
+    // ground
+    commands.spawn(PbrBundle {
+        mesh: meshes.add(shape::Plane::from_size(45.0).into()),
+        material: materials.add(Color::rgb(0.4, 0.4, 0.4).into()),
+        ..default()
+    });
+
+    let gridmap = example_map();
+
+    for gridx in 0..gridmap.len() {
+        for gridy in 0..gridmap[gridx].len() {
+            let gridcell = &gridmap[gridx][gridy];
+
+            if gridcell.north_wall == "yes" {
+                commands.spawn(wall(gridx, gridy,
+                                    wall_mesh.clone(),
+                                    wall_material_handle.clone(),
+                                    Direction::North));
+            } else if gridcell.north_wall == "door" {
+                commands.spawn(wall(gridx, gridy,
+                                    wall_mesh.clone(),
+                                    door_material_handle.clone(),
+                                    Direction::North));
+            }
+
+            if gridcell.south_wall == "yes" {
+                commands.spawn(wall(gridx, gridy,
+                                    wall_mesh.clone(),
+                                    wall_material_handle.clone(),
+                                    Direction::South));
+            } else if gridcell.south_wall == "door" {
+                commands.spawn(wall(gridx, gridy,
+                                    wall_mesh.clone(),
+                                    door_material_handle.clone(),
+                                    Direction::South));
+            }
+            if gridcell.west_wall == "yes" {
+                commands.spawn(wall(gridx, gridy,
+                                    wall_mesh.clone(),
+                                    wall_material_handle.clone(),
+                                    Direction::West));
+            } else if gridcell.west_wall == "door" {
+                commands.spawn(wall(gridx, gridy,
+                                    wall_mesh.clone(),
+                                    door_material_handle.clone(),
+                                    Direction::West));
+            }
+            if gridcell.east_wall == "yes" {
+                commands.spawn(wall(gridx, gridy,
+                                    wall_mesh.clone(),
+                                    wall_material_handle.clone(),
+                                    Direction::East));
+            } else if gridcell.east_wall == "door" {
+                commands.spawn(wall(gridx, gridy,
+                                    wall_mesh.clone(),
+                                    door_material_handle.clone(),
+                                    Direction::East));
+            }
+        }
+    }
+
+
+    // light
+    commands.spawn(PointLightBundle {
+        point_light: PointLight {
+            intensity: 1500.0,
+            shadows_enabled: true,
+            ..default()
+        },
+        transform: Transform::from_xyz(4.0, 8.0, 4.0),
+        ..default()
+    });
+
+
+    commands
+        .spawn((Camera3dBundle {
+            transform: Transform::from_xyz(0., 0.5, 0.)
+                .looking_to(Vec3::Z, Vec3::Y),
+            ..default()
+        },
+                BlobberCam,
+        ));
+}
+
+
+fn move_blobber(
+    time: Res<Time>,
+    keyboard: Res<Input<KeyCode>>,
+    mut query: Query<(&BlobberCam, &mut Transform)>,
+) {
+    for (_camera, mut transform) in query.iter_mut() {
+        let forward = transform.forward();
+        if keyboard.pressed(KeyCode::Up) {
+            // move forward
+            transform.translation += forward * time.delta_seconds();
+        } else if keyboard.pressed(KeyCode::Left) {
+            // turn left
+            transform.rotate_y(time.delta_seconds());
+        } else if keyboard.pressed(KeyCode::Right) {
+            // turn right
+            transform.rotate_y(- time.delta_seconds());
+        }
+    }
 }

src/map.rs

@@ -0,0 +1,266 @@
+use std::collections::HashMap;
+
+use serde::{Serialize, Deserialize};
+
+pub struct GridCell {
+    pub north_wall: String,
+    pub south_wall: String,
+    pub east_wall:  String,
+    pub west_wall:  String,
+}
+
+pub enum Direction {
+    North,
+    South,
+    East,
+    West,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+struct MapFile {
+    default: String,
+    overlays: HashMap<String, String>,
+}
+
+static example_map_json5: &str = r##"
+{
+default: "_________________________________\
+| _,_____ |_+ +_|,|,+ ____|_____|\
+| | ____+   + +     | |,__+_____|\
+| | |       +_+_____| _,_ |_____|\
+| |,|   _,_     ______| | ______|\
+|__,___ + +____ +_______| |_____|\
+|__ __+ | +,+_| ____+_+   ______|\
+|_| |__ |,|__,| +_____|   |_____|\
+|__ __+ | +   | _____,___ ___ __|\
+|_| |__ | |__,| | | ____| |,| +_|\
+|,_ _,+ | +   | +_|_| _,_,_ ___,|\
+| |,|   |_|___| |_+_+ |_|_| |___|\
+|,_ _,_ _,_ ___ +_|,| +_| ___ __|\
+| |_| | | | | + _,___,+_| | | | |\
+|_____| |_| |_| |__,|_|   | | | |\
+|_____+___________________|_|_+_|",
+overlays: {
+  "indoors": "_________________________________\
+| _______ ########### __________|\
+| #######   ######### #####_____|\
+| ###       ######### ___ |_____|\
+| ###   ___     ______### ______|\
+|______ ###____ ######### |_____|\
+|###### ####### ____###   ______|\
+|_###__ ####### #######   |_____|\
+|###### ####### _________ ___ __|\
+|_###__ ####### ######### ### ##|\
+|###### ####### ##### _____ ____|\
+| ###   ####### ##### ##### ####|\
+|__ ___ ___ ___ ##### ### ___ __|\
+|##_### ### ### ______### ### ##|\
+|###### ### ### ######    ### ##|\
+|######___________________###_##|",
+},
+
+}"##;
+
+
+pub fn example_map() -> Vec<Vec<GridCell>> {
+    let unused_map: MapFile = serde_json5::from_str(example_map_json5).unwrap();
+
+    return vec![
+        vec![
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "door".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "door".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "door".to_string(),
+                west_wall:  "door".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "door".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "door".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "door".to_string(),
+                east_wall:  "door".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "door".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "no".to_string(),
+            },
+        ], vec![
+            GridCell{
+                north_wall: "no".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "door".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "door".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "no".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "door".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "door".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "no".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "door".to_string(),
+                west_wall:  "door".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "door".to_string(),
+            },
+            GridCell{
+                north_wall: "door".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "door".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "no".to_string(),
+                south_wall: "no".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "door".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "yes".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "door".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "door".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "no".to_string(),
+                west_wall:  "no".to_string(),
+            },
+            GridCell{
+                north_wall: "yes".to_string(),
+                south_wall: "yes".to_string(),
+                east_wall:  "yes".to_string(),
+                west_wall:  "no".to_string(),
+            },
+        ],
+    ];
+    
+}