I got help for dragging around a 2D view, and now I modified it for 3D! Here is the code:
Create Event
global.camera_distance=200 global.camera_updown=40 global.camera_direction=45
End Step Event
if(mouse_check_button_pressed(mb_left))
{
xs = window_mouse_get_x()*.2;
ys = window_mouse_get_y()*.4;
}
if(mouse_check_button(mb_left))
{
xe= window_mouse_get_x()*.3;
ye= window_mouse_get_y()*.4;
global.camera_direction += xs-xe;
global.camera_updown += ys-ye;
xs = xe;
ys = ye;
if global.camera_direction < 1 then {global.camera_direction = 1}
if global.camera_updown < 1 then {global.camera_updown = 1}
if global.camera_direction > room_width-760 then {global.camera_direction = room_width-760}
if global.camera_updown > room_height-500 then {global.camera_updown = room_height-500}
}Draw Event
{
// SET CAMERA PROJECTION
// FROM CAMERA X,Y,Z
xf=room_width/2+lengthdir_x(global.camera_distance,global.camera_direction)
yf=room_height/2+lengthdir_y(global.camera_distance,global.camera_direction)
zf=global.camera_updown
// TO PLAYER X,Y,Z
xt=room_width/2
yt=room_height/2
zt=0
d3d_set_projection(xf,yf,zf, xt,yt,zt, 0,0,1);
// SET COLOR AND TRANSPARENCY
draw_set_alpha(1);
draw_set_color(c_white);
// DRAW FLOOR
}Original Topic
Edited by starfire_64, 20 March 2012 - 07:53 PM.
