feat: linear library implemented

1 files changed, 38 insertions, 0 deletions

diff --git a/src/linear.h b/src/linear.h
index e69de29..86b93d7 100644
--- a/src/linear.h
+++ b/src/linear.h
@@ -0,0 +1,38 @@
+#ifndef __LINEAR__
+#define __LINEAR__
+
+#ifndef M_PI
+#define M_PI (3.14159265358979323846)
+#endif
+
+typedef struct {
+    float matrix[4][4];
+} mat4;
+
+typedef struct {
+    float vector[3];
+} vec3;
+
+mat4 linearTranslatev(vec3 translate_vector); //TODO
+mat4 linearScalev(vec3 scale_vector); //TODO
+mat4 linearTranslate(float translate_x, float translate_y, float translate_z);
+mat4 linearScale(float scale_x, float scale_y, float scale_z);
+mat4 linearRotate(float degree, vec3 rotation_axis);
+mat4 linearPerspective(float FoV, float ratio, float near, float far);
+mat4 linearLookAt(vec3 position, vec3 target, vec3 up);
+
+mat4 linearMat4Fill(float value);
+mat4 linearMat4Identity();
+mat4 linearMat4Mul(mat4 x1, mat4 x2);
+mat4 linearMat4Transpose(mat4 x);
+mat4 linearMat4Inv(mat4 x); //TODO
+mat4 linearMat4Add(mat4 x1, mat4 x2); //TODO
+float linearMat4Det(mat4 x); //TODO
+
+vec3 linearVec3(float x, float y, float z);
+vec3 linearVec3Normalize(vec3 vector);
+vec3 linearVec3Add(vec3 vector1, vec3 vector2);
+vec3 linearVec3ScalarMulp(vec3 vector, float scalar);
+vec3 linearVec3CrossProduct(vec3 vector1, vec3 vector2);
+float linearVec3DotProduct(vec3 vector1, vec3 vector2);
+#endif