Fixed get_proj_mat on HTML5

BBMOD_GML/scripts/BBMOD_Camera/BBMOD_Camera.gml

@@ -296,6 +296,27 @@ function BBMOD_Camera() constructor
 		return _retval;
 	};
 
+	/// @func get_proj_mat()
+	/// @desc Retrieves camera's projection matrix.
+	/// @return {real[16]} The projection matrix.
+	static get_proj_mat = function () {
+		gml_pragma("forceinline");
+
+		if (os_browser == browser_not_a_browser)
+		{
+			// This returns a struct in HTML5 for some reason...
+			return camera_get_proj_mat(Raw);
+		}
+
+		var _view = matrix_get(matrix_view);
+		var _proj = matrix_get(matrix_projection);
+		camera_apply(Raw);
+		var _retval = matrix_get(matrix_projection);
+		matrix_set(matrix_view, _view);
+		matrix_set(matrix_projection, _proj);
+		return _retval;
+	};
+
 	/// @func get_right()
 	/// @desc Retrieves a vector pointing right relative to the camera's
 	/// direction.
@@ -337,14 +358,6 @@ function BBMOD_Camera() constructor
 		);
 	};
 
-	/// @func get_proj_mat()
-	/// @desc Retrieves camera's projection matrix.
-	/// @return {real[16]} The projection matrix.
-	static get_proj_mat = function () {
-		gml_pragma("forceinline");
-		return camera_get_proj_mat(Raw);
-	};
-
 	/// @func apply()
 	/// @desc Applies the camera.
 	/// @return {BBMOD_Camera} Returns `self`.

docs_src/Changelog/Changelog3.1.8.md

@@ -1,5 +1,7 @@
 # Changelog 3.1.8
+This is a small hotfix release that patches the camera module, which caused errors on YYC and HTML5 platforms.
 
 ## GML API:
 ### Camera module
 * Fixed a bug where Windows YYC (and possibly other YYC targets) did not work if `_positionHandler` argument was not passed to `BBMOD_Camera.update`.
+* Fixed method `BBMOD_Camera.get_proj_mat`, which did not work in HTML5.