Merge branch 'fz-dev' into dev

applications/external/blackjack/common/dml.h

@@ -0,0 +1,116 @@
+//
+// Doofy's Math library
+//
+
+#pragma once
+
+typedef struct {
+    float x;
+    float y;
+} Vector;
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#define abs(x) ((x) > 0 ? (x) : -(x))
+
+/**
+ * Lerp function
+ *
+ * @param v0    Start value
+ * @param v1    End value
+ * @param t     Time (0-1 range)
+ * @return      Point between v0-v1 at a given time
+ */
+float lerp(float v0, float v1, float t);
+
+/**
+ * 2D lerp function
+ *
+ * @param start Start vector
+ * @param end   End vector
+ * @param t     Time (0-1 range)
+ * @return      2d Vector between start and end at time
+ */
+Vector lerp_2d(Vector start, Vector end, float t);
+
+/**
+ * Quadratic lerp function
+ *
+ * @param start     Start vector
+ * @param control   Control point
+ * @param end       End vector
+ * @param t         Time (0-1 range)
+ * @return          2d Vector at time
+ */
+Vector quadratic_2d(Vector start, Vector control, Vector end, float t);
+
+/**
+ * Add vector components together
+ *
+ * @param a     First vector
+ * @param b     Second vector
+ * @return      Resulting vector
+ */
+Vector vector_add(Vector a, Vector b);
+
+/**
+ * Subtract vector components together
+ *
+ * @param a First vector
+ * @param b Second vector
+ * @return  Resulting vector
+ */
+Vector vector_sub(Vector a, Vector b);
+
+/**
+ * Multiplying vector components together
+ *
+ * @param a First vector
+ * @param b Second vector
+ * @return  Resulting vector
+ */
+Vector vector_mul_components(Vector a, Vector b);
+
+/**
+ * Dividing vector components
+ *
+ * @param a First vector
+ * @param b Second vector
+ * @return  Resulting vector
+ */
+Vector vector_div_components(Vector a, Vector b);
+
+/**
+ * Calculating Vector length
+ *
+ * @param a Direction vector
+ * @return  Length of the vector
+ */
+float vector_magnitude(Vector a);
+
+/**
+ * Get a normalized vector (length of 1)
+ *
+ * @param a Direction vector
+ * @return  Normalized vector
+ */
+Vector vector_normalized(Vector a);
+
+/**
+ * Calculate two vector's distance
+ *
+ * @param a First vector
+ * @param b Second vector
+ * @return  Distance between vectors
+ */
+float vector_distance(Vector a, Vector b);
+
+/**
+ * Calculate the dot product of the vectors.
+ * No need to normalize, it will do it
+ *
+ * @param a First vector
+ * @param b Second vector
+ * @return  value from -1 to 1
+ */
+float vector_dot(Vector a, Vector b);