Add initial Pico-8 cartridges for testing

- Created test_cart.p8 with basic drawing functionality and a print statement.
- Created test_unix.p8 with a simple initialization function.

scripts/nodes/library/math/add.js

@@ -0,0 +1,41 @@
+import { createNodeModule } from "../../nodeTypes.js";
+
+/**
+ * Adds two numeric values.
+ */
+export const mathAddNode = createNodeModule(
+  {
+    id: "math_add",
+    title: "Add",
+    category: "Math",
+    description: "Add two numbers.",
+    searchTags: ["add", "math", "sum", "plus", "number", "+"],
+    inputs: [
+      {
+        id: "a",
+        name: "A",
+        direction: "input",
+        kind: "number",
+        defaultValue: 0,
+      },
+      {
+        id: "b",
+        name: "B",
+        direction: "input",
+        kind: "number",
+        defaultValue: 0,
+      },
+    ],
+    outputs: [
+      { id: "res", name: "Result", direction: "output", kind: "number" },
+    ],
+    properties: [],
+  },
+  {
+    evaluateValue: ({ resolveValueInput }) => {
+      const a = resolveValueInput("a", "0");
+      const b = resolveValueInput("b", "0");
+      return `(${a}) + (${b})`;
+    },
+  }
+);

scripts/nodes/library/math/divide.js

@@ -0,0 +1,41 @@
+import { createNodeModule } from "../../nodeTypes.js";
+
+/**
+ * Divides one numeric value by another.
+ */
+export const mathDivideNode = createNodeModule(
+  {
+    id: "math_divide",
+    title: "Divide",
+    category: "Math",
+    description: "Divide one number by another (floating point division).",
+    searchTags: ["divide", "division", "math", "slash", "number", "/"],
+    inputs: [
+      {
+        id: "a",
+        name: "A",
+        direction: "input",
+        kind: "number",
+        defaultValue: 0,
+      },
+      {
+        id: "b",
+        name: "B",
+        direction: "input",
+        kind: "number",
+        defaultValue: 1,
+      },
+    ],
+    outputs: [
+      { id: "res", name: "Result", direction: "output", kind: "number" },
+    ],
+    properties: [],
+  },
+  {
+    evaluateValue: ({ resolveValueInput }) => {
+      const a = resolveValueInput("a", "0");
+      const b = resolveValueInput("b", "1");
+      return `(${a}) / (${b})`;
+    },
+  }
+);

scripts/nodes/library/math/index.js

@@ -1,3 +1,7 @@
+import { mathAddNode } from "./add.js";
+import { mathSubtractNode } from "./subtract.js";
+import { mathMultiplyNode } from "./multiply.js";
+import { mathDivideNode } from "./divide.js";
 import { mathMaxNode } from "./max.js";
 import { mathMinNode } from "./min.js";
 import { mathMidNode } from "./mid.js";
@@ -25,6 +29,10 @@ import { mathDivNode } from "./div.js";
  * All math-related node modules backed by PICO-8 helpers.
  */
 export const mathNodes = [
+  mathAddNode,
+  mathSubtractNode,
+  mathMultiplyNode,
+  mathDivideNode,
   mathMaxNode,
   mathMinNode,
   mathMidNode,
@@ -54,6 +62,10 @@ export const mathNodes = [
  * @type {Array<{ function: string, nodeId: string, implemented: boolean }>}
  */
 export const mathFunctionChecklist = [
+  { function: "+", nodeId: "math_add", implemented: true },
+  { function: "-", nodeId: "math_subtract", implemented: true },
+  { function: "*", nodeId: "math_multiply", implemented: true },
+  { function: "/", nodeId: "math_divide", implemented: true },
   { function: "MAX", nodeId: "math_max", implemented: true },
   { function: "MIN", nodeId: "math_min", implemented: true },
   { function: "MID", nodeId: "math_mid", implemented: true },

scripts/nodes/library/math/multiply.js

@@ -0,0 +1,41 @@
+import { createNodeModule } from "../../nodeTypes.js";
+
+/**
+ * Multiplies two numeric values.
+ */
+export const mathMultiplyNode = createNodeModule(
+  {
+    id: "math_multiply",
+    title: "Multiply",
+    category: "Math",
+    description: "Multiply two numbers.",
+    searchTags: ["multiply", "product", "math", "times", "*"],
+    inputs: [
+      {
+        id: "a",
+        name: "A",
+        direction: "input",
+        kind: "number",
+        defaultValue: 0,
+      },
+      {
+        id: "b",
+        name: "B",
+        direction: "input",
+        kind: "number",
+        defaultValue: 0,
+      },
+    ],
+    outputs: [
+      { id: "res", name: "Result", direction: "output", kind: "number" },
+    ],
+    properties: [],
+  },
+  {
+    evaluateValue: ({ resolveValueInput }) => {
+      const a = resolveValueInput("a", "0");
+      const b = resolveValueInput("b", "0");
+      return `(${a}) * (${b})`;
+    },
+  }
+);

scripts/nodes/library/math/subtract.js

@@ -0,0 +1,41 @@
+import { createNodeModule } from "../../nodeTypes.js";
+
+/**
+ * Subtracts one numeric value from another.
+ */
+export const mathSubtractNode = createNodeModule(
+  {
+    id: "math_subtract",
+    title: "Subtract",
+    category: "Math",
+    description: "Subtract one number from another.",
+    searchTags: ["subtract", "math", "minus", "difference", "-"],
+    inputs: [
+      {
+        id: "a",
+        name: "A",
+        direction: "input",
+        kind: "number",
+        defaultValue: 0,
+      },
+      {
+        id: "b",
+        name: "B",
+        direction: "input",
+        kind: "number",
+        defaultValue: 0,
+      },
+    ],
+    outputs: [
+      { id: "res", name: "Result", direction: "output", kind: "number" },
+    ],
+    properties: [],
+  },
+  {
+    evaluateValue: ({ resolveValueInput }) => {
+      const a = resolveValueInput("a", "0");
+      const b = resolveValueInput("b", "0");
+      return `(${a}) - (${b})`;
+    },
+  }
+);