Implement simple line drawing

maths.h

@@ -0,0 +1,24 @@
+#ifndef MATHS_H
+#define MATHS_H
+
+typedef struct {
+	float x;
+	float y;
+} vec2_t;
+
+typedef struct {
+	float x;
+	float y;
+	float z;
+} vec3_t;
+
+typedef struct {
+	vec3_t x;
+	vec3_t y;
+	vec3_t z;
+} mat3_t;
+
+vec3_t vec2_extend(vec2_t v);
+vec3_t mat3_mul_vec3(mat3_t m, vec3_t v);
+
+#endif