Merge pull request #26 from Ewpratten/ewpratten/tile_metadata

Allow sampling of tile metadata

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

@@ -13,7 +13,7 @@ use raylib::{
     texture::Texture2D,
     RaylibHandle, RaylibThread,
 };
-use tiled::{Loader, Map, ResourceCache, ResourcePath, ResourcePathBuf, Tileset};
+use tiled::{Loader, Map, PropertyValue, ResourceCache, ResourcePath, ResourcePathBuf, Tileset};
 
 /// Possible errors generated by the map loading process
 #[derive(Debug, thiserror::Error)]
@@ -131,22 +131,114 @@ impl MapRenderer {
         })
     }
 
-    pub fn sample_friction_at(&self, world_position: na::Vector2<f32>) -> f32 {
+    pub fn sample_friction_at(&self, world_position: na::Vector2<f32>) -> Option<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!()
+
+        // If there is an object here, let it override the output
+        for obj_ref in &self.world_objects.object_references {
+            if obj_ref.position.x == tile_position.x as f32
+                && obj_ref.position.y == tile_position.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();
+
+                // Check if there is a friction property
+                if let Some(friction) = obj_def.friction {
+                    return Some(friction);
+                }
+            }
+        }
+
+        // Get the first layer
+        let layer = self.map.layers().next().unwrap();
+
+        // Handle the layer type
+        match layer.layer_type() {
+            tiled::LayerType::TileLayer(layer) => {
+                // Get the tile
+                if let Some(tile) = layer.get_tile(tile_position.x, tile_position.y) {
+                    if let Some(tile) = tile.get_tile() {
+                        if let Some(data) = tile.data.properties.get("friction") {
+                            match data {
+                                PropertyValue::FloatValue(f) => Some(*f),
+                                _ => None,
+                            }
+                        } else {
+                            None
+                        }
+                    } else {
+                        None
+                    }
+                } else {
+                    None
+                }
+            }
+            _ => None,
+        }
     }
 
-    pub fn sample_temperature_at(&self, world_position: na::Vector2<f32>) -> f32 {
+    pub fn sample_temperature_at(&self, world_position: na::Vector2<f32>) -> Option<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!()
+
+        // If there is an object here, let it override the output
+        for obj_ref in &self.world_objects.object_references {
+            if obj_ref.position.x == tile_position.x as f32
+                && obj_ref.position.y == tile_position.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();
+
+                // Check if there is a temperature property
+                if let Some(temperature) = obj_def.temperature {
+                    return Some(temperature);
+                }
+            }
+        }
+
+        // Get the first layer
+        let layer = self.map.layers().next().unwrap();
+
+        // Handle the layer type
+        match layer.layer_type() {
+            tiled::LayerType::TileLayer(layer) => {
+                // Get the tile
+                if let Some(tile) = layer.get_tile(tile_position.x, tile_position.y) {
+                    if let Some(tile) = tile.get_tile() {
+                        if let Some(data) = tile.data.properties.get("temperature") {
+                            match data {
+                                PropertyValue::FloatValue(f) => Some(*f),
+                                _ => None,
+                            }
+                        } else {
+                            None
+                        }
+                    } else {
+                        None
+                    }
+                } else {
+                    None
+                }
+            }
+            _ => None,
+        }
     }
 
     pub fn render_map(
@@ -330,7 +422,7 @@ impl MapRenderer {
                                                         width: tex.width as f32,
                                                         height: tex.height as f32,
                                                     };
-    
+
                                                     draw_handle.draw_texture_pro(
                                                         &tex,
                                                         r1,

game/game_logic/src/scenes/player_interaction.rs

@@ -30,8 +30,13 @@ impl PlayableScene {
         thread: &raylib::RaylibThread,
         constants: &ProjectConstants,
     ) -> Self {
-
-        let map_renderer = MapRenderer::new("map_gameMap.tmx", "map_gameMap.objects.json", raylib_handle, thread).unwrap();
+        let map_renderer = MapRenderer::new(
+            "map_gameMap.tmx",
+            "map_gameMap.objects.json",
+            raylib_handle,
+            thread,
+        )
+        .unwrap();
 
         // Load the game music
         let game_soundtrack =
@@ -105,10 +110,15 @@ impl PlayableScene {
         let mut ctx2d = draw.begin_mode2D(self.camera);
 
         // Render the map
+        self.world_map
+            .render_map(&mut ctx2d, &self.camera, true, self.player.position);
 
-        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;
+        // NOTE: This is how to check friction and temperature
+        let current_friction = self.world_map.sample_friction_at(self.player.position);
+        let current_temperature = self.world_map.sample_temperature_at(self.player.position);
+
+        let player_size =
+            (constants.tile_size as f32 * constants.player.start_size * self.player.size) as i32;
 
         ctx2d.draw_rectangle(
             self.player.position[0] as i32 - player_size / 2,