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108
scripts/nodes/library/map/map.js
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108
scripts/nodes/library/map/map.js
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import { createNodeModule } from "../../nodeTypes.js";
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/**
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* Draws map tiles using PICO-8's map helper.
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*/
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export const mapDrawNode = createNodeModule(
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{
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id: "map_map",
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title: "Draw Map",
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category: "Map",
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description:
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"Render a section of the map to the screen with optional layers.",
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searchTags: ["map", "draw", "tiles", "layer"],
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inputs: [
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{ id: "exec_in", name: "Exec", direction: "input", kind: "exec" },
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{
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id: "tile_x",
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name: "Tile X",
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direction: "input",
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kind: "number",
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description: "Starting tile X coordinate",
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},
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{
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id: "tile_y",
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name: "Tile Y",
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direction: "input",
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kind: "number",
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description: "Starting tile Y coordinate",
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},
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{
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id: "screen_x",
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name: "Screen X",
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direction: "input",
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kind: "number",
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description: "Screen X position in pixels",
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},
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{
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id: "screen_y",
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name: "Screen Y",
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direction: "input",
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kind: "number",
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description: "Screen Y position in pixels",
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},
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{
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id: "tile_w",
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name: "Tile Width",
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direction: "input",
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kind: "number",
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description: "Number of tiles across",
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},
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{
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id: "tile_h",
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name: "Tile Height",
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direction: "input",
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kind: "number",
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description: "Number of tiles down",
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},
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{
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id: "layers",
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name: "Layers",
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direction: "input",
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kind: "number",
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description: "Sprite flag bitmask",
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},
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],
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outputs: [
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{ id: "exec_out", name: "Exec", direction: "output", kind: "exec" },
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],
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properties: [],
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},
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{
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emitExec: ({ indent, indentLevel, resolveValueInput, emitNextExec }) => {
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const OMIT = "__pg_omit__";
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const tileX = resolveValueInput("tile_x", OMIT);
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const tileY = resolveValueInput("tile_y", OMIT);
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const screenX = resolveValueInput("screen_x", OMIT);
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const screenY = resolveValueInput("screen_y", OMIT);
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const tileW = resolveValueInput("tile_w", OMIT);
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const tileH = resolveValueInput("tile_h", OMIT);
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const layers = resolveValueInput("layers", OMIT);
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const values = [
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{ value: tileX, placeholder: "0" },
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{ value: tileY, placeholder: "0" },
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{ value: screenX, placeholder: "0" },
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{ value: screenY, placeholder: "0" },
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{ value: tileW, placeholder: "nil" },
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{ value: tileH, placeholder: "nil" },
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{ value: layers, placeholder: "nil" },
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];
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let lastIndex = values.length - 1;
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while (lastIndex >= 0 && values[lastIndex].value === OMIT) {
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lastIndex -= 1;
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}
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const args = [];
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for (let index = 0; index <= lastIndex; index += 1) {
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const entry = values[index];
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args.push(entry.value === OMIT ? entry.placeholder : entry.value);
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}
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const call = args.length ? `map(${args.join(", ")})` : "map()";
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const line = `${indent(indentLevel)}${call}`;
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return [line, ...emitNextExec("exec_out")];
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},
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}
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);
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