Ez a script miért nem megy?

direction -= (display_mouse_get_x()-(display_get_width()/2))/16

zdirection -= (display_mouse_get_y()-(display_get_height()/2))/16/64

display_mouse_set(display_get_width()/2,display_get_height()/2)

d3d_set_projection(x,y,25,x+cos(direction*pi/180),

y-sin(direction*pi/180),zdirection+25,0,0,1);

d3d_model_draw(knuck,0,0,0,background_get_texture(tex_knuck));

d3d_model_draw(tails,20,20,0,background_get_texture(tex_tails));

d3d_transform_set_identity();

d3d_transform_add_rotation_z(direction-180);

d3d_transform_add_rotation_y(zdirection);

d3d_transform_add_translation(x,y,20);

d3d_model_draw(weapon,0,0,0,background_get_texture(tex_weapon));

d3d_transform_set_identity();

Addig megy hogy direction felé forog a weapon csak a zdirection nem megy(a variablek más scriptben vannak)