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-rw-r--r--lib/vec2.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/vec2.c b/lib/vec2.c
new file mode 100644
index 0000000..b417e9c
--- /dev/null
+++ b/lib/vec2.c
@@ -0,0 +1,46 @@
+#include "types.h"
+
+vec2
+dp_vec2_new(float x, float y)
+{
+ vec2 new;
+ new.x = x;
+ new.y = y;
+ return new;
+}
+
+vec2
+dp_vec2_add(vec2 a, vec2 b)
+{
+ vec2 new;
+ new.x = a.x + b.x;
+ new.y = a.y + b.y;
+ return new;
+}
+
+vec2
+dp_vec2_sub(vec2 a, vec2 b)
+{
+ vec2 new;
+ new.x = a.x - b.x;
+ new.y = a.y - b.y;
+ return new;
+}
+
+vec2
+dp_vec2_mul(vec2 vec, float scalar)
+{
+ vec2 new;
+ new.x = vec.x * scalar;
+ new.y = vec.y * scalar;
+ return new;
+}
+
+vec2
+dp_vec2_dot(vec2 a, vec2 b)
+{
+ vec2 dot;
+ dot.x = a.x * b.x;
+ dot.y = a.y * b.y;
+ return dot;
+}