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* Replaces bees and hivelord MOUSE_OPACITY_OPAQUE with a component. (#61032) I have replaced the mouse opacity setting for bees and hivelord, its brood and legion skulls with a component that adds an almost (has to be 1 alpha to catch the click) invisible underlay to its target that doesn't block the entire turf. The component prevents the underlay from shrinking or expanding above/below certain boundaries when the attached atom transform matrix is vv'd by an admin or if it's a mob being resized. The component can be added to any atom, though there's no common signal for when objects are resized. * Replaces bees and hivelord MOUSE_OPACITY_OPAQUE with a component. Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>
96 lines
3.8 KiB
Plaintext
96 lines
3.8 KiB
Plaintext
#define CLICKBOX_LAYER FLOAT_LAYER-999
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/**
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* This component adds a near-invisible underlay to a movable target to expand the clickable surface of its icon without
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* resorting to MOUSE_OPACITY_OPAQUE.
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* The underlay ignores the parent's color and alpha and can be offset.
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* The name is a portmanteau of "click" and "hitbox", because technically this isn't an hitbox,
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* but it helps catch clicks, and I don't want to give it a loooong name like openspace_item_click_handler
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*/
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/datum/component/clickbox
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dupe_mode = COMPONENT_DUPE_ALLOWED
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/// The icon state of the underlay.
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var/icon_state = "sphere"
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/// The offsets of the underlay.
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var/x_offset = 0
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var/y_offset = 0
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/// Maximum width/height of the underlay, in case the attached atom is scaled up.
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var/max_scale = 2
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/// Minimum width/height of the underlay, in case the attached atom is scaled down.
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var/min_scale = 0.5
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/// For simple animals that have different icon states when dead.
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var/dead_state
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/// the underlay that has been added to the parent.
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var/mutable_appearance/clickbox_undelay
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/datum/component/clickbox/Initialize(icon_state = "sphere", x_offset = 0, y_offset = 0, max_scale = 2, min_scale = 0.5, dead_state)
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if(!isatom(parent))
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return COMPONENT_INCOMPATIBLE
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src.icon_state = icon_state
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src.x_offset = x_offset
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src.y_offset = y_offset
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src.max_scale = max_scale
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src.min_scale = min_scale
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RegisterSignal(parent, COMSIG_ATOM_VV_MODIFY_TRANSFORM, .proc/on_modify_or_update_transform)
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var/clickbox_icon_state = icon_state
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if(dead_state && isliving(parent))
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var/mob/living/living_parent = parent
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src.dead_state = dead_state
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RegisterSignal(living_parent, COMSIG_LIVING_POST_UPDATE_TRANSFORM, .proc/on_modify_or_update_transform)
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RegisterSignal(living_parent, COMSIG_LIVING_DEATH, .proc/on_death)
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RegisterSignal(living_parent, COMSIG_LIVING_REVIVE, .proc/on_revive)
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if(living_parent.stat == DEAD)
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clickbox_icon_state = dead_state
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update_underlay(clickbox_icon_state)
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/datum/component/clickbox/UnregisterFromParent()
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var/atom/movable/mov_parent = parent
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UnregisterSignal(mov_parent, list(COMSIG_ATOM_VV_MODIFY_TRANSFORM, COMSIG_LIVING_POST_UPDATE_TRANSFORM, COMSIG_LIVING_DEATH, COMSIG_LIVING_REVIVE))
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mov_parent.underlays -= clickbox_undelay
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/// Removes the old underlay and adds a new one if conditions are met. The underlay is scaled up/down if necessary
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/datum/component/clickbox/proc/update_underlay(clickbox_icon_state)
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var/atom/movable/mov_parent = parent
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if(!clickbox_icon_state)
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clickbox_icon_state = clickbox_undelay?.icon_state || icon_state
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mov_parent.underlays -= clickbox_undelay // Remove the previous underlay.
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var/width = abs(mov_parent.transform.a) // Negative values flip the parent, so abs() is good to have here.
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var/height = abs(mov_parent.transform.e) // Idem.
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var/clickbox_width = 1
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if(width > max_scale)
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clickbox_width = max_scale/width
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else if(width < min_scale && width)
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clickbox_width = min_scale/width
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var/clickbox_height = 1
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if(height > max_scale)
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clickbox_height = max_scale/height
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else if(height < min_scale && height)
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clickbox_height = min_scale/height
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clickbox_undelay = mutable_appearance('icons/misc/clickbox.dmi', clickbox_icon_state, CLICKBOX_LAYER, alpha = 1, appearance_flags = RESET_COLOR|RESET_ALPHA)
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clickbox_undelay.transform = clickbox_undelay.transform.Scale(clickbox_width, clickbox_height)
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//Keeps the underlay more or less centered.
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clickbox_undelay.pixel_x = x_offset * 1/clickbox_width
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clickbox_undelay.pixel_y = y_offset * 1/clickbox_height
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mov_parent.underlays += clickbox_undelay
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/datum/component/clickbox/proc/on_modify_or_update_transform(atom/source)
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SIGNAL_HANDLER
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update_underlay()
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/datum/component/clickbox/proc/on_death(mob/living/source)
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SIGNAL_HANDLER
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update_underlay(dead_state)
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/datum/component/clickbox/proc/on_revive(mob/living/source)
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SIGNAL_HANDLER
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update_underlay(icon_state)
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#undef CLICKBOX_LAYER
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