对于运行代码的实例，此函数将使用指定的参数在指定的事件中执行代码。这里有许多选项，允许完全模拟所有可能的事件，但请注意，这实际上只是执行事件中的所有代码；游戏不会修改任何内容以使其手动触发。
例如，如果您选择执行键盘按下事件 ev_keypress，该事件将被触发，但相关键不会被识别为已被按下。或者，如果您执行计时器事件 ev_alarm，则计时器计数不会设置为 -1，而是继续倒计时。
注意 可以使用event_perform_async调用异步事件。
下表概述了 GameMaker 中包含的用于引用事件 类型 的所有常量及其 编号 值。事件本身以 粗体文本 标记，并且与 event_type 变量的返回值相同 (将传递到此函数的第一个参数中)，而它们的数值则标记为 斜体文本 ，并且与 event_number 变量的返回值 (将传递到此函数的第二个参数中) 相同：
| 事件类型常量 & 事件数字常量 | |
|---|---|
| 常量 | 描述 |
| ev_create | Create event |
| ev_destroy | Destroy event |
| ev_cleanup | Clean Up Event |
| ev_step | Step event |
| ---- ev_step_normal | Step |
| ---- ev_step_begin | Begin Step |
| ---- ev_step_end | End Step |
| ev_alarm | Alarm event |
| ---- 0 ... 11 | The number relevant to which of the 12 alarms you wish to trigger the event of |
| ev_keyboard, ev_keypress, ev_keyrelease | Keyboard/Keyboard Pressed/Keyboard Released |
| ---- any key code | vk_space or ord("W") for example. |
| ev_mouse | Mouse event |
| ---- ev_left_button | Left button held down on object |
| ---- ev_right_button | Right button held down on object |
| ---- ev_middle_button | Middle button (or clickable wheel) held down on object |
| ---- ev_no_button | No buttons held down |
| ---- ev_left_press | Left button just pressed on object |
| ---- ev_right_press | Right button just pressed on object |
| ---- ev_middle_press | Middle button (or clickable wheel) just pressed on object |
| ---- ev_left_release | Left button just released on object |
| ---- ev_right_release | Right button just released on object |
| ---- ev_middle_release | Middle button just released on object |
| ---- ev_mouse_enter | Mouse just entered object's bounding box |
| ---- ev_mouse_leave | Mouse just left object's bounding box |
| ---- ev_mouse_wheel_up | Mouse wheel scrolled upwards |
| ---- ev_mouse_wheel_down | Mouse wheel scrolled downwards |
| ---- ev_global_left_button | Left button held down anywhere |
| ---- ev_global_right_button | Right button held down anywhere |
| ---- ev_global_middle_button | Middle button (or clickable wheel) held down anywhere |
| ---- ev_global_left_press | Left button just pressed anywhere |
| ---- ev_global_right_press | Right button just pressed anywhere |
| ---- ev_global_middle_press | Middle button (or clickable wheel) just pressed anywhere |
| ---- ev_global_left_release | Left button just released anywhere |
| ---- ev_global_right_release | Right button just released anywhere |
| ---- ev_global_middle_release | Middle button just released anywhere |
| ev_gesture | A gesture event (Tap, Drag, Flick, Pinch or Rotate) |
| ---- ev_gesture_tap | A single click/touch and release has been detected for an instance |
| ---- ev_gesture_double_tap | Two quick touches/clicks and releases have been detected for an instance |
| ---- ev_gesture_drag_start | The beginning of a drag gesture has been detected for an instance |
| ---- ev_gesture_dragging | A touch/click has been held and moved for an instance |
| ---- ev_gesture_drag_end | The release of the touch/click from a drag has been detected for an instance |
| ---- ev_gesture_flick | The release of a touch/click from a drag had enough movement for a flick event to be detected for the instance |
| ---- ev_gesture_pinch_start | Two touches and a straight movement have been detected for an instance |
| ---- ev_gesture_pinch_in | The movement between two touches for an instance has been detected as inwards |
| ---- ev_gesture_pinch_out | The movement between two touches for an instance has been detected as outwards |
| ---- ev_gesture_pinch_end | The release of one (or both) touches for a pinch has been detected for an instance |
| ---- ev_gesture_rotate_start | The movement between two touches for an instance has been detected as a rotation |
| ---- ev_gesture_rotating | The movement between two touches for an instance has been detected as rotating |
| ---- ev_gesture_rotate_end | The release of one (or both) touches for a rotation has been detected for an instance |
| ---- ev_global_gesture_tap | A single click/touch and release has been detected anywhere in the room |
| ---- ev_global_gesture_double_tap | Two quick touches/clicks and releases have been detected anywhere in the room |
| ---- ev_global_gesture_drag_start | The beginning of a drag gesture has been detected anywhere in the room |
| ---- ev_global_gesture_dragging | A touch/click has been held and moved anywhere in the room |
| ---- ev_global_gesture_drag_end | The release of the touch/click from a drag has been detected anywhere in the room |
| ---- ev_global_gesture_flick | The release of a touch/click from a drag had enough movement for a flick event to be detected anywhere in the room |
| ---- ev_global_gesture_pinch_start | Two touches and a straight movement have been detected anywhere in the room |
| ---- ev_global_gesture_pinch_in | The movement between two touches anywhere in the room has been detected as inwards |
| ---- ev_global_gesture_pinch_out | The movement between two touches anywhere in the room has been detected as outwards |
| ---- ev_global_gesture_pinch_end | The release of one (or both) touches for a pinch has been detected anywhere in the room |
| ---- ev_global_gesture_rotate_start | The movement between two touches anywhere in the room has been detected as a rotation |
| ---- ev_global_gesture_rotating | The movement between two touches anywhere in the room has been detected as rotating |
| ---- ev_global_gesture_rotate_end | The release of one (or both) touches for a rotation has been detected anywhere in the room |
| ev_collision | Collision with an object |
| ---- The index of the object to check. | obj_enemy for example. |
| ev_other | One of the actions listed under 'Other' |
| ---- ev_outside | Whether the instance is outside of the room |
| ---- ev_boundary | Whether the instance is intersecting the boundary |
| ---- ev_outside_view0...7 | Whether the instance is outside the given view (0 to 7) |
| ---- ev_boundary_view0...7 | Whether the instance is interesecting with the boundary of the given view (0 to 7) |
| ---- ev_game_start | Only triggered at the start of the game |
| ---- ev_game_end | Only triggered at the end of the game |
| ---- ev_room_start | Only triggered at the start of a room |
| ---- ev_room_end | Only triggered at the end of a room |
| ---- ev_animation_end | If the object's sprite has reached the end of its animation |
| ---- ev_animation_update | Animation event that runs every step for objects that use skeletal animations |
| ---- ev_animation_event | Animation event that runs for skeletal animations as assigned in the skeletal animation tool |
| ---- ev_end_of_path | If the object has reached the end of a path it is following |
| ---- ev_user0... ev_user15 | One of the 16 available user events. |
| ---- ev_broadcast_message | Broadcast Message event used for sprites and sequences |
| ev_draw | Draw event. NOTE This event cannot be forced outside of a draw event and the constants are only for identifying the event when performed in these cases. |
| ---- ev_draw_normal | The normal draw event. |
| ---- ev_draw_begin | The draw begin event. |
| ---- ev_draw_end | The draw end event. |
| ---- ev_draw_pre | The pre draw event. |
| ---- ev_draw_post | The post draw event. |
| ---- ev_gui | The draw gui event. |
| ---- ev_gui_begin | The draw gui begin event. |
| ---- ev_gui_end | The draw gui end event. |
event_perform(type, numb);
| 参数 | 类型 | 描述 |
|---|---|---|
| type | 事件类型常量 | 要执行的事件类型(请参见上表)。 |
| numb | Real or 事件数字常量 | 特定的事件常量或值。无论事件是否有子事件，其默认事件总是由事件编号 0 引用 (例如，创建事件只有一个事件编号为 0 的子事件，正常的步骤和绘制事件可以通过其常量 (分别为 ev_step_normal 和 ev_draw_normal) 或 事件编号 0 引用) |
N/A
event_perform(ev_keypress, ord("W"));
这将执行与按下 "W" 键的键盘检查相关联的事件 (而不实际生成键盘按下)。
event_perform(ev_step, ev_step_begin);
这将执行步开始事件(如果从任何步骤事件调用，它将导致步开始事件代码运行两次)。
event_perform(ev_create, 0);
这将执行该实例的创建事件。