GameMaker Studio - Lesson #14: Using the Mouse (Beginner's Guide)
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Lesson Title:
GameMaker Studio - Lesson #14: Working with the Mouse
Lesson Description:
In this video, you'll learn how to work with the mouse, including how to make objects follow the mouse.
Timecodes:
00:01 - Mouse Coordinates
00:44 - Click Types
04:45 - Event Handling via Code
08:04 - Following the Mouse
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Mouse Coordinates
mouse_x
mouse_y
Mouse Click Types
1. Object Click
2. Global Click
Action Types
Pressed - Press, Single Click
Down - Hold
Released - Release
Mouse Enter - Hover over an object
Mouse Leave - Move away from an object
Mouse Wheel Up - Rotate the mouse wheel up
Mouse Wheel Down - Rotate the mouse wheel down
Global - Click anywhere on the screen (not on an object)
Event Handling
mb_any - Press any mouse button
mb_left - Press the left mouse button
mb_right - Press the right mouse button
mb_middle - Press the middle mouse button
mb_none - Do not press any mouse buttons
Checking if a mouse is pressed
mouse_check_button(key name) -
mouse_check_button_pressed(key name)
mouse_check_button_released(key name)
mouse_wheel_down()
mouse_wheel_up()
instance_position(mouse_x, mouse_y) // whether the mouse is hovering over the object if instance_position(mouse_x, mouse_y, self)
display_mouse_set(x,y)
window_mouse_set(x,y)
*******
*******
Ob_main
*Draw
draw_text(x,y, string(mouse_x) + ", " string(mouse_y)) //display mouse coordinates on the screen
display_mouse_set(100,100); // move the mouse cursor 100,100 relative to the screen
window_mouse_set(100,100); // move the mouse cursor 100,100 relative to the game screen
*Global Left Down //when holding down the left mouse button
instance_create_depth(mouse_x, mouse_y, 0, Ob_enemyKnight); //create the object
*Global Left Presed //when pressing the left mouse button once
instance_create_depth(mouse_x, mouse_y, 0, Ob_enemyKnight); //create an object
Ob_enemyParent
*Mouse Enter //when the mouse moves toward the object
image_blend = c_red; //recolor the object red
*Mouse Leave //when the mouse moves away from the object
image_blend = c_white; //remove the object's recolor
*Steps
if (hp＜=0)
{
instance_destroy();
}
if (mouse_check_button(mb_left)) //if the left mouse button is pressed
{
instance_destroy();
}
*******
Ob_enemy
Ob_player
*Global Left Down //click anywhere on the screen
dir = point_direction(x,y,mouse_x, mouse_y); From x,y to mouse_x, mouse_y
if distance_to_point(mouse_x, mouse_y)＞5 //fix the twitching bug
{
move_toward_point(mouse_x, mouse_y,5); //move to x,y with a speed of 5
motion_set(dir,5); //another way to move, dir is the direction, 5 is the speed
image_angle=dir; //rotation angle
}
else
{
speed=0;
}
*Global Left Released //release the mouse anywhere on the screen
speed=0; //object speed
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Tags:
#gamemaker, #programming, #training, #mousemovement, #mouse