Merge pull request #23 from Ewpratten/ewpratten/object_defs

Allow basic object definition in the map

game/dist/assets/env/env_testObject/env_testObject.json

@@ -0,0 +1,23 @@
+{
+    "name": "env_testObject",
+    "bottom_texture": {
+        "file_path": "assets/env/env_testObject/env_testObjectBottom.png"
+    },
+    "top_texture": {
+        "file_path": "assets/env/env_testObject/env_testObjectTop.png"
+    },
+    "footprint_radius": 128.0,
+    "physics_colliders": [
+        {
+            "position": [
+                -118,
+                -60
+            ],
+            "size": [
+                230,
+                127
+            ]
+        }
+    ],
+    "temperature": 5.0
+}

game/dist/map_gameMap.objects.json

@@ -0,0 +1,8 @@
+[
+    {
+        "type":"env",
+        "name":"env_testObject",
+        "position": [0,0],
+        "rotation_radians": 0.5
+    }
+]

game/game_logic/Cargo.toml

@@ -25,5 +25,5 @@ thiserror = "1.0.30"
 approx = "0.5.1"
 poll-promise = { version = "0.1.0", features = ["tokio"] }
 tempfile = "3.3.0"
-nalgebra = "0.30.1"
 tiled = { version = "0.10.1", path = "../../third_party/rs-tiled" }
+nalgebra = { version = "0.30.1", features=["serde-serialize"]}

game/game_logic/src/model/mod.rs

@@ -1 +1,3 @@
-pub mod player;
+pub mod player;
+pub mod world_object;
+pub mod world_object_package;

game/game_logic/src/model/world_object.rs

@@ -0,0 +1,64 @@
+use std::collections::HashMap;
+
+use nalgebra as na;
+use serde::Deserialize;
+
+use crate::{
+    asset_manager::{load_json_structure, InternalJsonLoadError},
+    rendering::utilities::anim_texture::AnimatedTexture,
+};
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct PossiblyAnimatedTexture {
+    /// Signal if the texture is animated or static
+    pub animated: Option<bool>,
+    /// Relative file path from `dist` to the texture
+    pub file_path: String,
+}
+
+/// Defines a collider in object space.
+#[derive(Debug, Clone, Deserialize)]
+pub struct ObjectCollider {
+    /// Position, relative to the object's center (north east is 1,1 south west is -1,-1)
+    pub position: na::Vector2<f32>,
+    /// Possible sizing
+    pub size: Option<na::Vector2<f32>>,
+    /// Possible radius
+    pub radius: Option<f32>,
+}
+
+/// Definition of an object. Only one of these should exist *per object*, and they will be GPU instanced.
+#[derive(Debug, Clone, Deserialize)]
+pub struct WorldObject {
+    /// Object name. Must match the name of the texture
+    pub name: String,
+    /// The object's bottom texture
+    pub bottom_texture: PossiblyAnimatedTexture,
+    /// The object's top texture
+    pub top_texture: Option<PossiblyAnimatedTexture>,
+    /// colliders describing the object's footprint
+    // pub footprint: Vec<ObjectCollider>,
+    pub footprint_radius: Option<f32>,
+    /// Colliders for physics
+    pub physics_colliders: Vec<ObjectCollider>,
+    /// Temperature
+    pub temperature: Option<f32>,
+    /// Friction
+    pub friction: Option<f32>,
+}
+
+/// Used to reference an object in the world definition
+#[derive(Debug, Clone, Deserialize)]
+pub struct WorldObjectRef {
+    /// Object type
+    #[serde(rename = "type")]
+    pub kind: String,
+    /// Object name
+    pub name: String,
+    /// Object position (tile-space *not* pixel-space). 1,1 being up and to the right
+    pub position: na::Vector2<f32>,
+    /// Object rotation, positive is clockwise
+    pub rotation_radians: f32,
+}
+
+

game/game_logic/src/model/world_object_package.rs

@@ -0,0 +1,111 @@
+use std::collections::HashMap;
+
+use raylib::{texture::Texture2D, RaylibHandle, RaylibThread};
+
+use crate::{
+    asset_manager::{load_json_structure, load_texture_from_internal_data},
+    rendering::utilities::anim_texture::AnimatedTexture,
+};
+
+use super::world_object::{WorldObject, WorldObjectRef};
+
+#[derive(Debug, thiserror::Error)]
+pub enum WorldObjectPackageLoadError {
+    #[error(transparent)]
+    JsonError(#[from] crate::asset_manager::InternalJsonLoadError),
+    #[error(transparent)]
+    ResourceError(#[from] crate::asset_manager::ResourceLoadError),
+}
+
+/// A simply interface for the madness
+#[derive(Debug)]
+pub struct WorldObjectPackage {
+    /// The object definitions
+    pub object_definitions: HashMap<String, WorldObject>,
+    /// The object references
+    pub object_references: Vec<WorldObjectRef>,
+    /// Bottom static textures
+    pub bottom_static_textures: HashMap<String, Texture2D>,
+    /// Top static textures
+    pub top_static_textures: HashMap<String, Texture2D>,
+    /// Bottom animated textures
+    pub bottom_animated_textures: HashMap<String, AnimatedTexture>,
+    /// Top animated textures
+    pub top_animated_textures: HashMap<String, AnimatedTexture>,
+}
+
+impl WorldObjectPackage {
+    pub fn load(
+        raylib_handle: &mut RaylibHandle,
+        thread: &RaylibThread,
+        map_objects_file_path: &str,
+    ) -> Result<Self, WorldObjectPackageLoadError> {
+        // Attempt to load the object reference list
+        let object_references: Vec<WorldObjectRef> = load_json_structure(map_objects_file_path)?;
+
+        // We also need to load the object definitions
+        let mut object_definitions = HashMap::new();
+        let mut bottom_static_textures = HashMap::new();
+        let mut top_static_textures = HashMap::new();
+        let mut bottom_animated_textures = HashMap::new();
+        let mut top_animated_textures = HashMap::new();
+        for reference in &object_references {
+            // If this is a new object, load it.
+            let object_key = format!("{}:{}", reference.kind, reference.name);
+            if !object_definitions.contains_key(object_key.as_str()) {
+                // Construct the file path from the data we know about the reference
+                let path = format!(
+                    "assets/{}/{}/{}.json",
+                    reference.kind, reference.name, reference.name
+                );
+
+                // Attempt to load the object definition
+                let object_definition: WorldObject = load_json_structure(&path)?;
+
+                // If this object has a static bottom texture, load it
+                if object_definition.bottom_texture.animated.unwrap_or(false) {
+                    panic!("Animated bottom textures are not supported yet")
+                } else {
+                    // Load the bottom texture and save it
+                    bottom_static_textures.insert(
+                        object_key.to_string(),
+                        load_texture_from_internal_data(
+                            raylib_handle,
+                            thread,
+                            &object_definition.bottom_texture.file_path,
+                        )?,
+                    );
+                }
+
+                // If there is a top texture, load it
+                if let Some(top_texture) = &object_definition.top_texture {
+                    if top_texture.animated.unwrap_or(false) {
+                        panic!("Animated top textures are not supported yet")
+                    } else {
+                        // Load the top texture and save it
+                        top_static_textures.insert(
+                            object_key.to_string(),
+                            load_texture_from_internal_data(
+                                raylib_handle,
+                                thread,
+                                &top_texture.file_path,
+                            )?,
+                        );
+                    }
+                }
+
+                // Store the object definition
+                object_definitions.insert(object_key.to_string(), object_definition);
+            }
+        }
+
+        Ok(Self {
+            object_definitions,
+            object_references,
+            bottom_static_textures,
+            top_static_textures,
+            bottom_animated_textures,
+            top_animated_textures,
+        })
+    }
+}

game/game_logic/src/rendering/utilities/anim_texture.rs

@@ -5,7 +5,7 @@ use nalgebra::Vector2;
 use raylib::{
     color::Color,
     math::Rectangle,
-    prelude::{RaylibDraw, RaylibDrawHandle},
+    prelude::{RaylibDraw, RaylibDrawHandle, RaylibMode2D},
     texture::Texture2D,
     RaylibHandle, RaylibThread,
 };
@@ -127,7 +127,7 @@ impl AnimatedTexture {
     #[profiling::function]
     pub fn render_frame_by_index(
         &self,
-        draw_handle: &mut RaylibDrawHandle,
+        draw_handle: &mut RaylibMode2D<RaylibDrawHandle>,
         index: usize,
         position: Vector2<f32>,
         percent_scale: Option<Vector2<f32>>,
@@ -186,7 +186,7 @@ impl AnimatedTexture {
     /// Render the animation based on timestamp
     pub fn render_automatic(
         &mut self,
-        draw_handle: &mut RaylibDrawHandle,
+        draw_handle: &mut RaylibMode2D<RaylibDrawHandle>,
         position: Vector2<f32>,
         percent_scale: Option<Vector2<f32>>,
         origin: Option<Vector2<f32>>,
@@ -216,4 +216,11 @@ impl AnimatedTexture {
             warn!("We somehow got a frame index of None");
         }
     }
+
+    pub fn size(&self) -> Vector2<f32>{
+        Vector2::new(
+            self.texture.width as f32,
+            self.texture.height as f32,
+        )
+    }
 }

game/game_logic/src/rendering/utilities/map_render.rs

@@ -1,11 +1,14 @@
 use std::{collections::HashMap, path::PathBuf, sync::Arc};
 
-use crate::asset_manager::{load_texture_from_internal_data, InternalData};
+use crate::{
+    asset_manager::{load_texture_from_internal_data, InternalData},
+    model::world_object_package::WorldObjectPackage,
+};
 use nalgebra as na;
 use raylib::{
     camera::Camera2D,
     color::Color,
-    math::Vector2,
+    math::{Rectangle, Vector2},
     prelude::{RaylibDraw, RaylibDrawHandle, RaylibMode2D},
     texture::Texture2D,
     RaylibHandle, RaylibThread,
@@ -75,12 +78,14 @@ impl ResourceCache for ProgramDataTileCache {
 pub struct MapRenderer {
     map: Map,
     tile_textures: HashMap<PathBuf, Texture2D>,
+    world_objects: WorldObjectPackage,
 }
 
 impl MapRenderer {
     /// Construct a new MapRenderer.
     pub fn new(
         tmx_path: &str,
+        objects_path: &str,
         raylib: &mut RaylibHandle,
         raylib_thread: &RaylibThread,
     ) -> Result<Self, MapRenderError> {
@@ -116,18 +121,41 @@ impl MapRenderer {
             }
         }
 
-        Ok(Self { map, tile_textures })
+        // Load the world objects
+        let world_objects = WorldObjectPackage::load(raylib, raylib_thread, objects_path).unwrap();
+
+        Ok(Self {
+            map,
+            tile_textures,
+            world_objects,
+        })
     }
 
-    pub fn sample_friction_at(&self, position: na::Vector2<f32>) -> f32 {
+    pub fn sample_friction_at(&self, world_position: na::Vector2<f32>) -> f32 {
+        // Convert to a tile position
+        let tile_position = na::Vector2::new(
+            (world_position.x / 128.0).floor() as i32,
+            (world_position.y / 128.0).floor() as i32,
+        );
         todo!()
     }
 
-    pub fn sample_temperature_at(&self, position: na::Vector2<f32>) -> f32 {
+    pub fn sample_temperature_at(&self, world_position: na::Vector2<f32>) -> f32 {
+        // Convert to a tile position
+        let tile_position = na::Vector2::new(
+            (world_position.x / 128.0).floor() as i32,
+            (world_position.y / 128.0).floor() as i32,
+        );
         todo!()
     }
 
-    pub fn render_map(&self, draw_handle: &mut RaylibMode2D<RaylibDrawHandle>, camera: &Camera2D, show_debug_grid:bool) {
+    pub fn render_map(
+        &mut self,
+        draw_handle: &mut RaylibMode2D<RaylibDrawHandle>,
+        camera: &Camera2D,
+        show_debug_grid: bool,
+        player_position: na::Vector2<f32>,
+    ) {
         // Get the window corners in world space
         let screen_width = draw_handle.get_screen_width();
         let screen_height = draw_handle.get_screen_height();
@@ -187,8 +215,138 @@ impl MapRenderer {
                                             tile_y * tile_height as i32,
                                             Color::WHITE,
                                         );
-                                    } 
+                                    }
-                                    
+
+                                    // Check if there is an object at this tile
+                                    for obj_ref in &self.world_objects.object_references {
+                                        if obj_ref.position.x == sampler_x as f32
+                                            && obj_ref.position.y == sampler_y as f32
+                                        {
+                                            // Get access to the actual object definition
+                                            let object_key =
+                                                format!("{}:{}", obj_ref.kind, obj_ref.name);
+                                            let obj_def = self
+                                                .world_objects
+                                                .object_definitions
+                                                .get(&object_key)
+                                                .unwrap();
+
+                                            // We need to render the base layer of the object
+                                            if obj_def.bottom_texture.animated.unwrap_or(false) {
+                                                let tex = self
+                                                    .world_objects
+                                                    .bottom_animated_textures
+                                                    .get_mut(&object_key)
+                                                    .unwrap();
+                                                tex.render_automatic(
+                                                    draw_handle,
+                                                    obj_ref.position - (tex.size() / 2.0),
+                                                    None,
+                                                    Some(tex.size() / 2.0),
+                                                    Some(obj_ref.rotation_radians.to_degrees()),
+                                                    None,
+                                                );
+                                            } else {
+                                                let tex = self
+                                                    .world_objects
+                                                    .bottom_static_textures
+                                                    .get_mut(&object_key)
+                                                    .unwrap();
+                                                let p: Vector2 = obj_ref.position.into();
+                                                let r1 = Rectangle {
+                                                    x: 0.0,
+                                                    y: 0.0,
+                                                    width: tex.width as f32,
+                                                    height: tex.height as f32,
+                                                };
+                                                let r2 = Rectangle {
+                                                    x: p.x,
+                                                    y: p.y,
+                                                    width: tex.width as f32,
+                                                    height: tex.height as f32,
+                                                };
+
+                                                draw_handle.draw_texture_pro(
+                                                    &tex,
+                                                    r1,
+                                                    r2,
+                                                    Vector2::new(
+                                                        tex.width as f32 / 2.0,
+                                                        tex.height as f32 / 2.0,
+                                                    ),
+                                                    obj_ref.rotation_radians.to_degrees(),
+                                                    Color::WHITE,
+                                                );
+                                            }
+
+                                            // If needed we can render the top layer of the object
+                                            if let Some(top_texture) = &obj_def.top_texture {
+                                                // We need to detect if the player is in the footprint of the object
+                                                let mut tint = Color::WHITE;
+                                                if let Some(footprint_radius) =
+                                                    obj_def.footprint_radius
+                                                {
+                                                    let player_dist_to_object =
+                                                        (obj_ref.position - player_position).norm();
+                                                    // debug!(
+                                                    //     "Player dist to object: {}",
+                                                    //     player_dist_to_object
+                                                    // );
+                                                    if player_dist_to_object <= footprint_radius {
+                                                        tint.a = 128;
+                                                    }
+                                                }
+
+                                                if top_texture.animated.unwrap_or(false) {
+                                                    let tex = self
+                                                        .world_objects
+                                                        .top_animated_textures
+                                                        .get_mut(&object_key)
+                                                        .unwrap();
+                                                    tex.render_automatic(
+                                                        draw_handle,
+                                                        obj_ref.position - (tex.size() / 2.0),
+                                                        None,
+                                                        Some(tex.size() / 2.0),
+                                                        Some(obj_ref.rotation_radians.to_degrees()),
+                                                        Some(tint),
+                                                    );
+                                                } else {
+                                                    let tex = self
+                                                        .world_objects
+                                                        .top_static_textures
+                                                        .get_mut(&object_key)
+                                                        .unwrap();
+                                                    let p: Vector2 = obj_ref.position.into();
+                                                    let r1 = Rectangle {
+                                                        x: 0.0,
+                                                        y: 0.0,
+                                                        width: tex.width as f32,
+                                                        height: tex.height as f32,
+                                                    };
+                                                    let r2 = Rectangle {
+                                                        x: p.x,
+                                                        y: p.y,
+                                                        width: tex.width as f32,
+                                                        height: tex.height as f32,
+                                                    };
+    
+                                                    draw_handle.draw_texture_pro(
+                                                        &tex,
+                                                        r1,
+                                                        r2,
+                                                        Vector2::new(
+                                                            tex.width as f32 / 2.0,
+                                                            tex.height as f32 / 2.0,
+                                                        ),
+                                                        obj_ref.rotation_radians.to_degrees(),
+                                                        tint,
+                                                    );
+                                                }
+                                            }
+                                        }
+                                    }
+
                                     if show_debug_grid {
                                         draw_handle.draw_rectangle_lines(
                                             tile_x * tile_width as i32,

game/game_logic/src/scenes/player_interaction.rs

@@ -29,7 +29,7 @@ impl PlayableScene {
         constants: &ProjectConstants,
     ) -> Self {
 
-        let map_renderer = MapRenderer::new("map_gameMap.tmx", raylib_handle, thread).unwrap();
+        let map_renderer = MapRenderer::new("map_gameMap.tmx", "map_gameMap.objects.json", raylib_handle, thread).unwrap();
 
         Self {
             has_updated_discord_rpc: false,
@@ -96,7 +96,7 @@ impl PlayableScene {
         let mut ctx2d = draw.begin_mode2D(self.camera);
 
         // Render the map
-        self.world_map.render_map(&mut ctx2d, &self.camera, true);
+        self.world_map.render_map(&mut ctx2d, &self.camera, true, self.player.position);
        
         let player_size = (constants.tile_size as f32 * constants.player.start_size * self.player.size) as i32;
 

game/game_logic/src/scenes/test_fox.rs

@@ -24,14 +24,20 @@ impl TestFoxScene {
         let fox = AnimatedTexture::new(raylib_handle, thread, "chr", "testFox").unwrap();
 
         // Load the map
-        let map_renderer = MapRenderer::new("map_gameMap.tmx", raylib_handle, thread).unwrap();
+        let map_renderer = MapRenderer::new(
+            "map_gameMap.tmx",
+            "map_gameMap.objects.json",
+            raylib_handle,
+            thread,
+        )
+        .unwrap();
 
         // Create a camera
         let camera = Camera2D {
             target: Vector2 { x: 0.0, y: 0.0 },
             offset: Vector2 {
-                x: raylib_handle.get_screen_width() as f32,
+                x: raylib_handle.get_screen_width() as f32 * 0.5,
-                y: (raylib_handle.get_screen_height() as f32) * -0.5,
+                y: (raylib_handle.get_screen_height() as f32) * 0.5,
             },
             rotation: 0.0,
             zoom: 1.0,
@@ -58,15 +64,15 @@ impl TestFoxScene {
         // Clear the screen
         draw.clear_background(Color::WHITE);
 
-        // Render the fox
+        // // Render the fox
-        self.fox_animation.render_automatic(
+        // self.fox_animation.render_automatic(
-            &mut draw,
+        //     &mut draw,
-            na::Vector2::new(0.0, 0.0),
+        //     na::Vector2::new(0.0, 0.0),
-            None,
+        //     None,
-            None,
+        //     None,
-            None,
+        //     None,
-            None,
+        //     None,
-        );
+        // );
 
         // Allow the camera to be moved with wasd
         if draw.is_key_down(KeyboardKey::KEY_W) {
@@ -87,7 +93,19 @@ impl TestFoxScene {
             let mut ctx2d = draw.begin_mode2D(self.camera);
 
             // Render the map
-            self.world_map.render_map(&mut ctx2d, &self.camera, true);
+            self.world_map.render_map(
+                &mut ctx2d,
+                &self.camera,
+                true,
+                na::Vector2::new(self.camera.target.x, self.camera.target.y).into(),
+            );
         }
+
+        draw.draw_circle(
+            draw.get_screen_width() / 2,
+            draw.get_screen_height() / 2,
+            4.0,
+            Color::RED,
+        );
     }
 }