Initial commit

moved from private version control

scripts/nodes/library/map/tline.js

@@ -0,0 +1,157 @@
+import { createNodeModule } from "../../nodeTypes.js";
+
+/**
+ * Draws textured lines or configures precision using PICO-8's tline helper.
+ */
+export const mapTlineNode = createNodeModule(
+  {
+    id: "map_tline",
+    title: "Draw Textured Line",
+    category: "Map",
+    description:
+      "Render a textured line from map data or adjust tline precision.",
+    searchTags: ["tline", "map", "texture", "line"],
+    inputs: [
+      { id: "exec_in", name: "Exec", direction: "input", kind: "exec" },
+      {
+        id: "x0",
+        name: "X0",
+        direction: "input",
+        kind: "number",
+        description: "Line start X",
+      },
+      {
+        id: "y0",
+        name: "Y0",
+        direction: "input",
+        kind: "number",
+        description: "Line start Y",
+      },
+      {
+        id: "x1",
+        name: "X1",
+        direction: "input",
+        kind: "number",
+        description: "Line end X",
+      },
+      {
+        id: "y1",
+        name: "Y1",
+        direction: "input",
+        kind: "number",
+        description: "Line end Y",
+      },
+      {
+        id: "mx",
+        name: "Map X",
+        direction: "input",
+        kind: "number",
+        description: "Map sample X (tiles)",
+      },
+      {
+        id: "my",
+        name: "Map Y",
+        direction: "input",
+        kind: "number",
+        description: "Map sample Y (tiles)",
+      },
+      {
+        id: "mdx",
+        name: "MDX",
+        direction: "input",
+        kind: "number",
+        description: "Map X delta",
+      },
+      {
+        id: "mdy",
+        name: "MDY",
+        direction: "input",
+        kind: "number",
+        description: "Map Y delta",
+      },
+      {
+        id: "layers",
+        name: "Layers",
+        direction: "input",
+        kind: "number",
+        description: "Sprite flag bitmask",
+      },
+      {
+        id: "precision",
+        name: "Precision",
+        direction: "input",
+        kind: "number",
+        description: "Precision override when setting mode",
+      },
+    ],
+    outputs: [
+      { id: "exec_out", name: "Exec", direction: "output", kind: "exec" },
+    ],
+    properties: [
+      {
+        key: "mode",
+        label: "Mode",
+        type: "enum",
+        defaultValue: "draw",
+        options: [
+          { label: "Draw Line", value: "draw" },
+          { label: "Set Precision", value: "precision" },
+        ],
+      },
+    ],
+  },
+  {
+    emitExec: ({
+      node,
+      indent,
+      indentLevel,
+      resolveValueInput,
+      emitNextExec,
+    }) => {
+      const mode = String(node.properties.mode ?? "draw");
+      if (mode === "precision") {
+        const precision = resolveValueInput("precision", "16");
+        const line = `${indent(indentLevel)}tline(${precision})`;
+        return [line, ...emitNextExec("exec_out")];
+      }
+
+      const OMIT = "__pg_omit__";
+      const x0 = resolveValueInput("x0", OMIT);
+      const y0 = resolveValueInput("y0", OMIT);
+      const x1 = resolveValueInput("x1", OMIT);
+      const y1 = resolveValueInput("y1", OMIT);
+      const mx = resolveValueInput("mx", OMIT);
+      const my = resolveValueInput("my", OMIT);
+      const mdx = resolveValueInput("mdx", OMIT);
+      const mdy = resolveValueInput("mdy", OMIT);
+      const layers = resolveValueInput("layers", OMIT);
+
+      const values = [
+        { value: x0, placeholder: "0" },
+        { value: y0, placeholder: "0" },
+        { value: x1, placeholder: "0" },
+        { value: y1, placeholder: "0" },
+        { value: mx, placeholder: "0" },
+        { value: my, placeholder: "0" },
+        { value: mdx, placeholder: "0.125" },
+        { value: mdy, placeholder: "0" },
+        { value: layers, placeholder: "nil" },
+      ];
+
+      let lastIndex = values.length - 1;
+      while (lastIndex >= 0 && values[lastIndex].value === OMIT) {
+        lastIndex -= 1;
+      }
+
+      const args = [];
+      for (let index = 0; index <= lastIndex; index += 1) {
+        const entry = values[index];
+        args.push(entry.value === OMIT ? entry.placeholder : entry.value);
+      }
+
+      const call = args.length ? `tline(${args.join(", ")})` : "tline()";
+      const line = `${indent(indentLevel)}${call}`;
+      return [line, ...emitNextExec("exec_out")];
+    },
+  }
+);