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authorLibravatar Silas Bartha <silas@exvacuum.dev>2025-02-07 11:27:18 -0500
committerLibravatar Silas Bartha <silas@exvacuum.dev>2025-02-07 11:27:18 -0500
commit4da7be39827ea5888ef9c97b1aadf61b0d76347c (patch)
tree15d0ff8f8bcb0e871efb1b2e65c2bc8d07b17565 /mons_math/src/vec2.c
initial commit (lol)
Diffstat (limited to 'mons_math/src/vec2.c')
-rw-r--r--mons_math/src/vec2.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/mons_math/src/vec2.c b/mons_math/src/vec2.c
new file mode 100644
index 0000000..590397d
--- /dev/null
+++ b/mons_math/src/vec2.c
@@ -0,0 +1,120 @@
+#include "mons_math/vec2.h"
+#include "mons_math/util.h"
+#include "mons_math/vec3.h"
+#include <math.h>
+
+mons_vec2 mons_vec2_add(mons_vec2 a, mons_vec2 b) {
+ mons_vec2 result = {
+ a.x + b.x,
+ a.y + b.y,
+ };
+ return result;
+}
+
+void mons_vec2_add_inplace(mons_vec2 *a, mons_vec2 b) {
+ a->x += b.x;
+ a->y += b.y;
+}
+
+mons_vec2 mons_vec2_sub(mons_vec2 a, mons_vec2 b) {
+ mons_vec2 result = {
+ a.x - b.x,
+ a.y - b.y,
+ };
+ return result;
+}
+
+void mons_vec2_sub_inplace(mons_vec2 *a, mons_vec2 b) {
+ a->x -= b.x;
+ a->y -= b.y;
+}
+
+mons_vec2 mons_vec2_mul_f(mons_vec2 a, float b) {
+ mons_vec2 result = {
+ a.x * b,
+ a.y * b,
+ };
+ return result;
+}
+
+mons_vec2 mons_vec2_mul_i(mons_vec2 a, int b) {
+ mons_vec2 result = {
+ a.x * b,
+ a.y * b,
+ };
+ return result;
+}
+
+float mons_vec2_dot(mons_vec2 a, mons_vec2 b) {
+ return (a.x * b.x) + (a.y * b.y);
+}
+
+void mons_vec2_mul_f_inplace(mons_vec2 *a, float b) {
+ a->x *= b;
+ a->y *= b;
+}
+
+void mons_vec2_mul_i_inplace(mons_vec2 *a, int b) {
+ a->x *= b;
+ a->y *= b;
+}
+
+float mons_vec2_len(mons_vec2 a) { return sqrtf(mons_vec2_len_squared(a)); }
+
+float mons_vec2_len_squared(mons_vec2 a) { return (a.x * a.x) + (a.y * a.y); }
+
+mons_vec3 mons_vec2_extend(mons_vec2 a) {
+ mons_vec3 result = {
+ a.x,
+ a.y,
+ 0.0,
+ };
+ return result;
+}
+
+int mons_vec2_equal(mons_vec2 a, mons_vec2 b) {
+ return mons_float_approx_equal(a.x, b.x) &&
+ mons_float_approx_equal(a.y, b.y);
+}
+
+mons_vec2 mons_vec2_div_f(mons_vec2 a, float b) {
+ return (mons_vec2) {
+ a.x / b,
+ a.y / b,
+ };
+}
+
+mons_vec2 mons_vec2_div_i(mons_vec2 a, int b) {
+ return (mons_vec2) {
+ a.x / b,
+ a.y / b,
+ };
+}
+
+void mons_vec2_div_f_inplace(mons_vec2 *a, float b) {
+ a->x /= b;
+ a->y /= b;
+}
+
+void mons_vec2_div_i_inplace(mons_vec2 *a, int b) {
+ a->x /= b;
+ a->y /= b;
+}
+
+mons_vec2 mons_vec2_negate(mons_vec2 a) {
+ return mons_vec2_mul_i(a, -1);
+}
+
+void mons_vec2_negate_inplace(mons_vec2 *a) {
+ mons_vec2_mul_i_inplace(a, -1);
+}
+
+mons_vec2 mons_vec2_normalize(mons_vec2 a) {
+ float len = mons_vec2_len(a);
+ return mons_vec2_div_f(a, len);
+}
+
+void mons_vec2_normalize_inplace(mons_vec2 *a) {
+ float len = mons_vec2_len(*a);
+ mons_vec2_div_f_inplace(a, len);
+}