ある点と多角形の内外判定 - QiitajudgeInclusion = function(p1, comparisonArr) { var deg = 0; var p1x = p1.x; var p1y = p1.y; for (var index = 0; index < comparisonArr.length; index++) { var p2x = comparisonArr[index].x; var p2y = comparisonArr[index].y; if (index < comparisonArr.length - 1) { var p3x = comparisonArr[index + 1].x; var p3y = comparisonArr[index + 1].y; } else { var p3x = comparisonArr[0].x; var p3y = comparisonArr[
