/**
 * Canvas utility functions
 */

/**
 * Get mouse position relative to canvas, accounting for scaling
 * @param {MouseEvent} e - Mouse event
 * @param {HTMLCanvasElement} canvas - Canvas element
 * @returns {{x: number, y: number}} Mouse position clamped to canvas bounds
 */
export function getMousePos(e, canvas) {
    const rect = canvas.getBoundingClientRect();
    const scaleX = canvas.width / rect.width;
    const scaleY = canvas.height / rect.height;
    // Calculate position even if mouse is outside canvas bounds
    const x = (e.clientX - rect.left) * scaleX;
    const y = (e.clientY - rect.top) * scaleY;
    // Clamp to canvas bounds
    return {
        x: Math.max(0, Math.min(canvas.width, x)),
        y: Math.max(0, Math.min(canvas.height, y))
    };
}