Changeset: 8 Initial work on sprites and texture system

1 files changed, 17 insertions, 0 deletions

diff --git a/source/Utils.cpp b/source/Utils.cpp
index d47f35b..5083eb7 100644
--- a/source/Utils.cpp
+++ b/source/Utils.cpp
@@ -56,3 +56,20 @@ FILE* Utils::OpenCstdioFile(const char* path, IoMode mode, bool binary) {
 	return fopen(path, ::GetModeString(mode, binary));
 #endif
 }
+
+bool Utils::InRangeInclusive(int n, int lower, int upper) {
+	if (lower > upper) {
+		std::swap(lower, upper);
+	}
+	return n >= lower && n <= upper;
+}
+
+bool Utils::LineContains(glm::ivec2 p1, glm::ivec2 p2, glm::ivec2 candidate) {
+	bool verticalLine = p1.x == p2.x && InRangeInclusive(candidate.x, p1.x, p2.x);
+	bool horizontalLine = p1.y == p2.y && InRangeInclusive(candidate.y, p1.y, p2.y);
+	return verticalLine && horizontalLine;
+}
+
+bool Utils::IsColinear(glm::ivec2 p1, glm::ivec2 p2) {
+	return p1.x == p2.x || p1.y == p2.y;
+}