(Wiring) Logic - make wiring turing complete

CHANGELOG.md

@@ -93,6 +93,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Potion Kit is renamed to "consumables" and gives potions and mushroom curry
 - Cultist Kit gives cape, rings and necklace in addition to armour and weapons.
 - Reworked minotaur to have unique attacks.
+- Wiring is now turing complete
 
 ### Removed
 

server/src/cmd.rs

@@ -4,6 +4,7 @@
 
 use crate::{
     settings::{BanRecord, EditableSetting},
+    wiring::{Logic, OutputFormula},
     Server, SpawnPoint, StateExt,
 };
 use assets::AssetExt;
@@ -1721,9 +1722,39 @@ fn handle_spawn_wiring(
     pos.0.x += 3.0;
 
     let mut outputs1 = HashMap::new();
-    outputs1.insert(String::from("color"), wiring::OutputFormula::OnDeath {
+    outputs1.insert(
+        "deaths_last_tick".to_string(),
+        wiring::OutputFormula::OnDeath {
             value: 1.0,
             radius: 30.0,
+        },
+    );
+    outputs1.insert(
+        "deaths_accumulated".to_string(),
+        OutputFormula::Logic(Box::new(Logic {
+            kind: wiring::LogicKind::Sum,
+            left: OutputFormula::Logic(Box::new(Logic {
+                kind: wiring::LogicKind::Sub,
+                left: OutputFormula::Input {
+                    name: "deaths_accumulated".to_string(),
+                },
+                right: OutputFormula::Logic(Box::new(Logic {
+                    kind: wiring::LogicKind::Min,
+                    left: OutputFormula::Input {
+                        name: "pressed".to_string(),
+                    },
+                    right: OutputFormula::Input {
+                        name: "deaths_accumulated".to_string(),
+                    },
+                })),
+            })),
+            right: OutputFormula::Input {
+                name: "deaths_last_tick".to_string(),
+            },
+        })),
+    );
+    outputs1.insert("pressed".to_string(), OutputFormula::OnCollide {
+        value: f32::MAX,
     });
 
     let builder1 = server
@@ -1757,9 +1788,9 @@ fn handle_spawn_wiring(
             actions: vec![
                 WiringAction {
                     formula: wiring::OutputFormula::Input {
-                        name: String::from("color"),
+                        name: String::from("deaths_accumulated"),
                     },
-                    threshold: 1.0,
+                    threshold: 5.0,
                     effects: vec![WiringActionEffect::SpawnProjectile {
                         constr: comp::ProjectileConstructor::Arrow {
                             damage: 1.0,
@@ -1798,12 +1829,32 @@ fn handle_spawn_wiring(
             outputs: HashMap::new(),
         })
         .with(Circuit {
-            wires: vec![Wire {
+            wires: vec![
+                Wire {
                     input_entity: ent1,
-                input_field: String::from("color"),
+                    input_field: String::from("deaths_last_tick"),
+                    output_entity: ent1,
+                    output_field: String::from("deaths_last_tick"),
+                },
+                Wire {
+                    input_entity: ent1,
+                    input_field: String::from("deaths_accumulated"),
+                    output_entity: ent1,
+                    output_field: String::from("deaths_accumulated"),
+                },
+                Wire {
+                    input_entity: ent1,
+                    input_field: String::from("pressed"),
+                    output_entity: ent1,
+                    output_field: String::from("pressed"),
+                },
+                Wire {
+                    input_entity: ent1,
+                    input_field: String::from("deaths_accumulated"),
                     output_entity: ent2,
-                output_field: String::from("color"),
-            }],
+                    output_field: String::from("deaths_accumulated"),
+                },
+            ],
         });
     builder3.build();
 

server/src/sys/wiring/compute_outputs.rs

@@ -1,5 +1,5 @@
 use super::WiringData;
-use crate::wiring::OutputFormula;
+use crate::wiring::{Logic, LogicKind, OutputFormula};
 use common::{
     comp::{PhysicsState, Pos},
     resources::EntitiesDiedLastTick,
@@ -84,9 +84,8 @@ pub fn compute_output(
     match output_formula {
         OutputFormula::Constant { value } => *value,
         OutputFormula::Input { name } => *inputs.get(name).unwrap_or(&0.0),
-        OutputFormula::Logic(_logic) => {
-            warn!("Not implemented OutputFormula::Logic");
-            0.0
+        OutputFormula::Logic(logic) => {
+            output_formula_logic(logic, inputs, physics_state, entities_died_last_tick, pos)
         },
         OutputFormula::SineWave { .. } => {
             warn!("Not implemented OutputFormula::SineWave");
@@ -130,3 +129,34 @@ fn output_formula_on_death(
     }
     0.0
 }
+
+#[allow(clippy::too_many_arguments)]
+fn output_formula_logic(
+    logic: &Logic,
+    inputs: &HashMap<String, f32>,
+    physics_state: Option<&PhysicsState>,
+    entities_died_last_tick: &Read<EntitiesDiedLastTick>,
+    pos: Option<&Pos>,
+) -> f32 {
+    let left = compute_output(
+        &logic.left,
+        inputs,
+        physics_state,
+        entities_died_last_tick,
+        pos,
+    );
+    let right = compute_output(
+        &logic.right,
+        inputs,
+        physics_state,
+        entities_died_last_tick,
+        pos,
+    );
+    match logic.kind {
+        LogicKind::Max => f32::max(left, right),
+        LogicKind::Min => f32::min(left, right),
+        LogicKind::Sub => left - right,
+        LogicKind::Sum => left + right,
+        LogicKind::Mul => left * right,
+    }
+}

server/src/wiring.rs

@@ -37,6 +37,7 @@ pub enum LogicKind {
     Max, // acts like Or
     Sub, // `|x| { 5.0 - x }` acts like Not, depending on reference voltages
     Sum,
+    Mul,
 }
 
 pub struct WiringAction {