46 lines
1.2 KiB
TypeScript
46 lines
1.2 KiB
TypeScript
import { AssetManager } from "../client/assets.ts";
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import { SpriteRegion } from "./constants.ts";
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export function point_inside_rec(
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point_x: number,
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point_y: number,
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rec_x: number,
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rec_y: number,
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rec_w: number,
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rec_h: number,
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) {
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return point_x > rec_x &&
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point_x < rec_x + rec_w &&
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point_y > rec_y &&
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point_y < rec_y + rec_h;
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}
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type TexturesInfo = Record<string, SpriteRegion>;
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export function get_sprite_region(id: string): SpriteRegion {
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const textures_info = AssetManager.instance.get<TexturesInfo>("bworld:textures_info");
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return textures_info?.[id] ?? { x: 0, y: 0 };
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}
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export function distance_point_rectangle(px: number, py: number, sqx: number, sqy: number, sqw: number, sqh: number) {
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const x0 = sqx;
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const y0 = sqy;
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const x1 = sqx + sqw;
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const y1 = sqy + sqh;
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const cx = Math.max(x0, Math.min(px, x1));
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const cy = Math.max(y0, Math.min(py, y1));
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const dx = px - cx;
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const dy = py - cy;
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return Math.sqrt(dx * dx + dy * dy);
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}
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export function distance_point_point(ax: number, ay: number, az: number, bx: number, by: number, bz: number) {
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const dx = ax - bx;
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const dy = ay - by;
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const dz = az - bz;
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return dx * dx + dy * dy + dz * dz;
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}
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