@spearwolf/twopoint5d/lib/vertex-objects/VertexAttributeDescriptor.js

Create 2.5D realtime graphics and pixelart with WebGL and three.js

const toPascalCase = (str) => str.replace(/(^|_)([a-z])/g, (_match, _m0, m1) => m1.toUpperCase());
export class VertexAttributeDescriptor {
    constructor(name, description) {
        this.name = name;
        this.description = description;
    }
    get dataType() {
        return this.description.type ?? 'float32';
    }
    get normalizedData() {
        return Boolean(this.description.normalized);
    }
    get usageType() {
        return this.description.usage ?? 'static';
    }
    get autoTouch() {
        return this.description.autoTouch ?? this.usageType !== 'static';
    }
    get size() {
        return this.description.size ?? this.description.components?.length ?? 1;
    }
    get hasComponents() {
        return this.description.components?.length > 0;
    }
    get components() {
        return this.description.components ?? [];
    }
    get bufferName() {
        return this.description.bufferName ?? `${this.usageType}_${this.dataType}${this.normalizedData ? 'N' : ''}`;
    }
    get getterName() {
        if ('getter' in this.description && !this.description.getter) {
            return undefined;
        }
        if (typeof this.description.getter === 'string')
            return this.description.getter;
        return `get${toPascalCase(this.name)}`;
    }
    get setterName() {
        if ('setter' in this.description && !this.description.setter) {
            return undefined;
        }
        if (typeof this.description.setter === 'string')
            return this.description.setter;
        return `set${toPascalCase(this.name)}`;
    }
}
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