making punch effect draw_sprite_pos?

[Furiosposion]

have a good day, im new in gml and trying to make punch effect like in the images (it's from a game called Growtopia) as i searched from documents i need to use

draw_sprite_pos(sprite, subimg, x1, y1, x2, y2, x3, y3, x4, y4, alpha);

for it. but i don't know where to place them and how to calculate it.
and hand sprite's start point is obj_player's x and y, end point is mouse position as i added in images.
any help would make me happy thanks

or how can i draw sprite scretched and rot at same time? and scretch and rot by mouse position

 

[2Dcube]

I think you can achieve the same effect with image_xscale, image_yscale, and image_angle.
Use x and y scale to make the hand bigger and image_angle to rotate it to the mouse.
For example to get the angle towards mouse

var angle = point_direction(character.x, character.y, mouse_x, mouse_y);

 

[Furiosposion]

image_xscale = mouse_x - obj_player.x;
image_yscale = mouse_y - obj_player.y;

x = obj_player.x;
y = obj_player.y
image_angle = point_direction(obj_player.x, obj_player.y, mouse_x, mouse_y);

i tried this and result was broken, i guess something wrong with scaling

 

[Furiosposion]

little help?

 

[FrostyCat]

It's easy to see what's wrong in your attempt once you realize that 1 in image_xscale and image_yscale corresponds to standard size.

image_xscale = max(1, point_distance(obj_player.x, obj_player.y, mouse_x, mouse_y)/sprite_width);
x = obj_player.x;
y = obj_player.y;
image_angle = point_direction(obj_player.x, obj_player.y, mouse_x, mouse_y);

 

[Furiosposion]

It's easy to see what's wrong in your attempt once you realize that 1 in image_xscale and image_yscale corresponds to standard size.

image_xscale = max(1, point_distance(obj_player.x, obj_player.y, mouse_x, mouse_y)/sprite_width);
x = obj_player.x;
y = obj_player.y;
image_angle = point_direction(obj_player.x, obj_player.y, mouse_x, mouse_y);

image_yscale = max(1, point_distance(obj_player.x, obj_player.y, mouse_x, mouse_y)/25);
x = obj_player.x;
y = obj_player.y;
image_angle = point_direction(obj_player.x, obj_player.y, mouse_x, mouse_y);

works but image's angle is not properly rotating to mouse position.

 

[FrostyCat]

image_yscale = max(1, point_distance(obj_player.x, obj_player.y, mouse_x, mouse_y)/25);
x = obj_player.x;
y = obj_player.y;
image_angle = point_direction(obj_player.x, obj_player.y, mouse_x, mouse_y);

works but image's angle is not properly rotating to mouse position.

When using sprites designed to be rotated in GML, always start pointing to the right with the origin at the intended centre of rotation. That works best with built-in functions and variables. If you've done that, my code should have worked as intended.