55 lines
1.1 KiB
JavaScript
55 lines
1.1 KiB
JavaScript
import * as graphics from "./graphics_core.mjs";
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export * from "./graphics_core.mjs";
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import { range, iter_2d } from "./utils/range.mjs";
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import * as entity from "./entity.mjs";
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const canvas = document.getElementById("canvas");
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const canvas_context = canvas.getContext("2d");
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graphics.set_size(canvas.width, canvas.height);
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const SCALE = 81;
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export function draw_tile (x, y) {
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graphics.fill_rect(x * SCALE, y * SCALE, SCALE, SCALE);
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}
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function checkerboard (x, y) {
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return ((x ^ y) & 1) === 0;
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}
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export function draw_floor (box_size) {
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graphics.clear("#888");
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graphics.set_color("#aaa");
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iter_2d(range(0, box_size - 1), (x, y) => {
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if (checkerboard(x, y)) draw_tile(x, y);
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});
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}
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export function draw_world (box_size, get_tile) {
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draw_floor(box_size);
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iter_2d(range(0, box_size - 1), (x, y) => {
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const tile = get_tile(x, y);
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switch (tile.type) {
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case "box": {
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graphics.set_color("#ff0");
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draw_tile(x, y);
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break;
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}
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}
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});
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entity.for_each((entity, id) => {
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graphics.set_color(entity.color);
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draw_tile(entity.x, entity.y);
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});
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}
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export function render () {
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graphics.render(canvas_context);
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}
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