import { MAT_HOME, MAT_SAND } from "./constants";

export function generateSideViewWorld(worldSize: number): Float32Array {
    const data = new Float32Array(worldSize * worldSize * 4);
    const sandHeight = Math.floor(worldSize * 0.6);
    const surfaceRow = sandHeight - 1;

    // fill bottom 60% with sand
    for (let y = 0; y < sandHeight; y++) {
        for (let x = 0; x < worldSize; x++) {
            const idx = (y * worldSize + x) * 4;
            data[idx] = MAT_SAND;
        }
    }
    // top 40% stays MAT_AIR (Float32Array is zero-initialized)

    // place home on surface near center
    const centerX = Math.floor(worldSize / 2);
    const homeIdx = (surfaceRow * worldSize + centerX) * 4;
    data[homeIdx] = MAT_HOME;

    return data;
}