basic game logic with simple translation animation

shader.h

@@ -0,0 +1,14 @@
+#pragma once
+
+typedef struct Shader {
+  int program;
+} Shader;
+
+void read_shader_file(const char *path, char **buf);
+Shader create_shader(const char *vertex_path, const char *fragment_path);
+void use_shader(Shader shader);
+void set_mat4f(Shader shader, const char *name, float *mat);
+void set_float(Shader shader, const char *name, float val);
+void set_vec2f(Shader shader, const char *name, float val1, float val2);
+void set_vec3f(Shader shader, const char *name, float val1, float val2, float val3);
+void set_vec4f(Shader shader, const char *name, float val1, float val2, float val3, float val4);