/*************************************************************************/ /* camera_2d.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* http://www.godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "camera_2d.h" #include "scene/scene_string_names.h" #include "servers/visual_server.h" void Camera2D::_update_scroll() { if (!is_inside_tree()) return; if (get_tree()->is_editor_hint()) { update(); //will just be drawn return; } if (current) { Matrix32 xform = get_camera_transform(); RID vp = viewport->get_viewport(); if (viewport) { viewport->set_canvas_transform( xform ); } get_tree()->call_group(SceneTree::GROUP_CALL_REALTIME,group_name,"_camera_moved",xform); }; } void Camera2D::set_zoom(const Vector2 &p_zoom) { zoom = p_zoom; Point2 old_smoothed_camera_pos = smoothed_camera_pos; _update_scroll(); smoothed_camera_pos = old_smoothed_camera_pos; }; Vector2 Camera2D::get_zoom() const { return zoom; }; Matrix32 Camera2D::get_camera_transform() { if (!get_tree()) return Matrix32(); Size2 screen_size = get_viewport_rect().size; screen_size=get_viewport_rect().size; Point2 new_camera_pos = get_global_transform().get_origin(); Point2 ret_camera_pos; if (!first) { if (anchor_mode==ANCHOR_MODE_DRAG_CENTER) { if (h_drag_enabled && !get_tree()->is_editor_hint()) { camera_pos.x = MIN( camera_pos.x, (new_camera_pos.x + screen_size.x * 0.5 * drag_margin[MARGIN_RIGHT])); camera_pos.x = MAX( camera_pos.x, (new_camera_pos.x - screen_size.x * 0.5 * drag_margin[MARGIN_LEFT])); } else { if (h_ofs<0) { camera_pos.x = new_camera_pos.x + screen_size.x * 0.5 * drag_margin[MARGIN_RIGHT] * h_ofs; } else { camera_pos.x = new_camera_pos.x + screen_size.x * 0.5 * drag_margin[MARGIN_LEFT] * h_ofs; } } if (v_drag_enabled && !get_tree()->is_editor_hint()) { camera_pos.y = MIN( camera_pos.y, (new_camera_pos.y + screen_size.y * 0.5 * drag_margin[MARGIN_BOTTOM])); camera_pos.y = MAX( camera_pos.y, (new_camera_pos.y - screen_size.y * 0.5 * drag_margin[MARGIN_TOP])); } else { if (v_ofs<0) { camera_pos.y = new_camera_pos.y + screen_size.y * 0.5 * drag_margin[MARGIN_TOP] * v_ofs; } else { camera_pos.y = new_camera_pos.y + screen_size.y * 0.5 * drag_margin[MARGIN_BOTTOM] * v_ofs; } } } else if (anchor_mode==ANCHOR_MODE_FIXED_TOP_LEFT){ camera_pos=new_camera_pos; } if (smoothing_enabled && !get_tree()->is_editor_hint()) { float c = smoothing*get_fixed_process_delta_time(); smoothed_camera_pos = ((camera_pos-smoothed_camera_pos)*c)+smoothed_camera_pos; ret_camera_pos=smoothed_camera_pos; // camera_pos=camera_pos*(1.0-smoothing)+new_camera_pos*smoothing; } else { ret_camera_pos=smoothed_camera_pos=camera_pos; } } else { ret_camera_pos=smoothed_camera_pos=camera_pos=new_camera_pos; first=false; } Point2 screen_offset = (anchor_mode==ANCHOR_MODE_DRAG_CENTER ? (screen_size * 0.5 * zoom) : Point2()); float angle = get_global_transform().get_rotation(); if(rotating){ screen_offset = screen_offset.rotated(angle); } Rect2 screen_rect(-screen_offset+ret_camera_pos,screen_size*zoom); if (screen_rect.pos.x + screen_rect.size.x > limit[MARGIN_RIGHT]) screen_rect.pos.x = limit[MARGIN_RIGHT] - screen_rect.size.x; if (screen_rect.pos.y + screen_rect.size.y > limit[MARGIN_BOTTOM]) screen_rect.pos.y = limit[MARGIN_BOTTOM] - screen_rect.size.y; if (screen_rect.pos.x < limit[MARGIN_LEFT]) screen_rect.pos.x=limit[MARGIN_LEFT]; if (screen_rect.pos.y < limit[MARGIN_TOP]) screen_rect.pos.y =limit[MARGIN_TOP]; if (offset!=Vector2()) { screen_rect.pos+=offset; if (screen_rect.pos.x + screen_rect.size.x > limit[MARGIN_RIGHT]) screen_rect.pos.x = limit[MARGIN_RIGHT] - screen_rect.size.x; if (screen_rect.pos.y + screen_rect.size.y > limit[MARGIN_BOTTOM]) screen_rect.pos.y = limit[MARGIN_BOTTOM] - screen_rect.size.y; if (screen_rect.pos.x < limit[MARGIN_LEFT]) screen_rect.pos.x=limit[MARGIN_LEFT]; if (screen_rect.pos.y < limit[MARGIN_TOP]) screen_rect.pos.y =limit[MARGIN_TOP]; } camera_screen_center=screen_rect.pos+screen_rect.size*0.5; Matrix32 xform; if(rotating){ xform.set_rotation(angle); } xform.scale_basis(zoom); xform.set_origin(screen_rect.pos/*.floor()*/); /* if (0) { xform = get_global_transform() * xform; } else { xform.elements[2]+=get_global_transform().get_origin(); } */ return (xform).affine_inverse(); } void Camera2D::_notification(int p_what) { switch(p_what) { case NOTIFICATION_FIXED_PROCESS: { _update_scroll(); } break; case NOTIFICATION_TRANSFORM_CHANGED: { if (!is_fixed_processing()) _update_scroll(); } break; case NOTIFICATION_ENTER_TREE: { viewport = NULL; Node *n=this; while(n){ viewport = n->cast_to(); if (viewport) break; n=n->get_parent(); } canvas = get_canvas(); RID vp = viewport->get_viewport(); group_name = "__cameras_"+itos(vp.get_id()); canvas_group_name ="__cameras_c"+itos(canvas.get_id()); add_to_group(group_name); add_to_group(canvas_group_name); if(get_tree()->is_editor_hint()) { set_fixed_process(false); } _update_scroll(); first=true; } break; case NOTIFICATION_EXIT_TREE: { if (is_current()) { if (viewport) { viewport->set_canvas_transform( Matrix32() ); } } remove_from_group(group_name); remove_from_group(canvas_group_name); viewport=NULL; } break; case NOTIFICATION_DRAW: { if (!is_inside_tree() || !get_tree()->is_editor_hint()) break; Color area_axis_color(0.5, 0.42, 0.87, 0.63); float area_axis_width = 1; if(current) area_axis_width = 3; Matrix32 inv_camera_transform = get_camera_transform().affine_inverse(); Size2 screen_size = get_viewport_rect().size; Vector2 screen_endpoints[4]= { inv_camera_transform.xform(Vector2(0, 0)), inv_camera_transform.xform(Vector2(screen_size.width,0)), inv_camera_transform.xform(Vector2(screen_size.width, screen_size.height)), inv_camera_transform.xform(Vector2(0, screen_size.height)) }; Matrix32 inv_transform = get_global_transform().affine_inverse(); // undo global space for(int i=0;i<4;i++) { draw_line(inv_transform.xform(screen_endpoints[i]), inv_transform.xform(screen_endpoints[(i+1)%4]), area_axis_color, area_axis_width); } } break; } } void Camera2D::set_offset(const Vector2& p_offset) { offset=p_offset; _update_scroll(); } Vector2 Camera2D::get_offset() const{ return offset; } void Camera2D::set_anchor_mode(AnchorMode p_anchor_mode){ anchor_mode=p_anchor_mode; _update_scroll(); } Camera2D::AnchorMode Camera2D::get_anchor_mode() const { return anchor_mode; } void Camera2D::set_rotating(bool p_rotating){ rotating=p_rotating; _update_scroll(); } bool Camera2D::is_rotating() const { return rotating; } void Camera2D::_make_current(Object *p_which) { if (p_which==this) { current=true; _update_scroll(); } else { current=false; } } void Camera2D::_set_current(bool p_current) { if (p_current) make_current(); current=p_current; } bool Camera2D::is_current() const { return current; } void Camera2D::make_current() { if (!is_inside_tree()) { current=true; } else { get_tree()->call_group(SceneTree::GROUP_CALL_REALTIME,group_name,"_make_current",this); } } void Camera2D::clear_current() { current=false; if (is_inside_tree()) { get_tree()->call_group(SceneTree::GROUP_CALL_REALTIME,group_name,"_make_current",(Object*)(NULL)); } } void Camera2D::set_limit(Margin p_margin,int p_limit) { ERR_FAIL_INDEX(p_margin,4); limit[p_margin]=p_limit; } int Camera2D::get_limit(Margin p_margin) const{ ERR_FAIL_INDEX_V(p_margin,4,0); return limit[p_margin]; } void Camera2D::set_drag_margin(Margin p_margin,float p_drag_margin) { ERR_FAIL_INDEX(p_margin,4); drag_margin[p_margin]=p_drag_margin; } float Camera2D::get_drag_margin(Margin p_margin) const{ ERR_FAIL_INDEX_V(p_margin,4,0); return drag_margin[p_margin]; } Vector2 Camera2D::get_camera_pos() const { return camera_pos; } void Camera2D::force_update_scroll() { _update_scroll(); } void Camera2D::set_follow_smoothing(float p_speed) { smoothing=p_speed; if (smoothing>0 && !(is_inside_tree() && get_tree()->is_editor_hint())) set_fixed_process(true); else set_fixed_process(false); } float Camera2D::get_follow_smoothing() const{ return smoothing; } Point2 Camera2D::get_camera_screen_center() const { return camera_screen_center; } void Camera2D::set_h_drag_enabled(bool p_enabled) { h_drag_enabled=p_enabled; } bool Camera2D::is_h_drag_enabled() const{ return h_drag_enabled; } void Camera2D::set_v_drag_enabled(bool p_enabled){ v_drag_enabled=p_enabled; } bool Camera2D::is_v_drag_enabled() const{ return v_drag_enabled; } void Camera2D::set_v_offset(float p_offset) { v_ofs=p_offset; } float Camera2D::get_v_offset() const{ return v_ofs; } void Camera2D::set_h_offset(float p_offset){ h_ofs=p_offset; } float Camera2D::get_h_offset() const{ return h_ofs; } void Camera2D::_set_old_smoothing(float p_val) { //compatibility if (p_val>0) { smoothing_enabled=true; set_follow_smoothing(p_val); } } void Camera2D::set_enable_follow_smoothing(bool p_enabled) { smoothing_enabled=p_enabled; } bool Camera2D::is_follow_smoothing_enabled() const { return smoothing_enabled; } void Camera2D::_bind_methods() { ObjectTypeDB::bind_method(_MD("set_offset","offset"),&Camera2D::set_offset); ObjectTypeDB::bind_method(_MD("get_offset"),&Camera2D::get_offset); ObjectTypeDB::bind_method(_MD("set_anchor_mode","anchor_mode"),&Camera2D::set_anchor_mode); ObjectTypeDB::bind_method(_MD("get_anchor_mode"),&Camera2D::get_anchor_mode); ObjectTypeDB::bind_method(_MD("set_rotating","rotating"),&Camera2D::set_rotating); ObjectTypeDB::bind_method(_MD("is_rotating"),&Camera2D::is_rotating); ObjectTypeDB::bind_method(_MD("make_current"),&Camera2D::make_current); ObjectTypeDB::bind_method(_MD("clear_current"),&Camera2D::clear_current); ObjectTypeDB::bind_method(_MD("_make_current"),&Camera2D::_make_current); ObjectTypeDB::bind_method(_MD("_update_scroll"),&Camera2D::_update_scroll); ObjectTypeDB::bind_method(_MD("_set_current","current"),&Camera2D::_set_current); ObjectTypeDB::bind_method(_MD("is_current"),&Camera2D::is_current); ObjectTypeDB::bind_method(_MD("set_limit","margin","limit"),&Camera2D::set_limit); ObjectTypeDB::bind_method(_MD("get_limit","margin"),&Camera2D::get_limit); ObjectTypeDB::bind_method(_MD("set_v_drag_enabled","enabled"),&Camera2D::set_v_drag_enabled); ObjectTypeDB::bind_method(_MD("is_v_drag_enabled"),&Camera2D::is_v_drag_enabled); ObjectTypeDB::bind_method(_MD("set_h_drag_enabled","enabled"),&Camera2D::set_h_drag_enabled); ObjectTypeDB::bind_method(_MD("is_h_drag_enabled"),&Camera2D::is_h_drag_enabled); ObjectTypeDB::bind_method(_MD("set_v_offset","ofs"),&Camera2D::set_v_offset); ObjectTypeDB::bind_method(_MD("get_v_offset"),&Camera2D::get_v_offset); ObjectTypeDB::bind_method(_MD("set_h_offset","ofs"),&Camera2D::set_h_offset); ObjectTypeDB::bind_method(_MD("get_h_offset"),&Camera2D::get_h_offset); ObjectTypeDB::bind_method(_MD("set_drag_margin","margin","drag_margin"),&Camera2D::set_drag_margin); ObjectTypeDB::bind_method(_MD("get_drag_margin","margin"),&Camera2D::get_drag_margin); ObjectTypeDB::bind_method(_MD("get_camera_pos"),&Camera2D::get_camera_pos); ObjectTypeDB::bind_method(_MD("get_camera_screen_center"),&Camera2D::get_camera_screen_center); ObjectTypeDB::bind_method(_MD("set_zoom","zoom"),&Camera2D::set_zoom); ObjectTypeDB::bind_method(_MD("get_zoom"),&Camera2D::get_zoom); ObjectTypeDB::bind_method(_MD("set_follow_smoothing","follow_smoothing"),&Camera2D::set_follow_smoothing); ObjectTypeDB::bind_method(_MD("get_follow_smoothing"),&Camera2D::get_follow_smoothing); ObjectTypeDB::bind_method(_MD("set_enable_follow_smoothing","follow_smoothing"),&Camera2D::set_enable_follow_smoothing); ObjectTypeDB::bind_method(_MD("is_follow_smoothing_enabled"),&Camera2D::is_follow_smoothing_enabled); ObjectTypeDB::bind_method(_MD("force_update_scroll"),&Camera2D::force_update_scroll); ObjectTypeDB::bind_method(_MD("_set_old_smoothing","follow_smoothing"),&Camera2D::_set_old_smoothing); ADD_PROPERTYNZ( PropertyInfo(Variant::VECTOR2,"offset"),_SCS("set_offset"),_SCS("get_offset")); ADD_PROPERTY( PropertyInfo(Variant::INT,"anchor_mode",PROPERTY_HINT_ENUM,"Fixed TopLeft,Drag Center"),_SCS("set_anchor_mode"),_SCS("get_anchor_mode")); ADD_PROPERTY( PropertyInfo(Variant::BOOL,"rotating"),_SCS("set_rotating"),_SCS("is_rotating")); ADD_PROPERTY( PropertyInfo(Variant::BOOL,"current"),_SCS("_set_current"),_SCS("is_current")); ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"zoom"),_SCS("set_zoom"),_SCS("get_zoom") ); ADD_PROPERTYI( PropertyInfo(Variant::INT,"limit/left"),_SCS("set_limit"),_SCS("get_limit"),MARGIN_LEFT); ADD_PROPERTYI( PropertyInfo(Variant::INT,"limit/top"),_SCS("set_limit"),_SCS("get_limit"),MARGIN_TOP); ADD_PROPERTYI( PropertyInfo(Variant::INT,"limit/right"),_SCS("set_limit"),_SCS("get_limit"),MARGIN_RIGHT); ADD_PROPERTYI( PropertyInfo(Variant::INT,"limit/bottom"),_SCS("set_limit"),_SCS("get_limit"),MARGIN_BOTTOM); ADD_PROPERTY( PropertyInfo(Variant::BOOL,"drag_margin/h_enabled"),_SCS("set_h_drag_enabled"),_SCS("is_h_drag_enabled") ); ADD_PROPERTY( PropertyInfo(Variant::BOOL,"drag_margin/v_enabled"),_SCS("set_v_drag_enabled"),_SCS("is_v_drag_enabled") ); ADD_PROPERTY( PropertyInfo(Variant::BOOL,"smoothing/enable"),_SCS("set_enable_follow_smoothing"),_SCS("is_follow_smoothing_enabled") ); ADD_PROPERTY( PropertyInfo(Variant::REAL,"smoothing/speed"),_SCS("set_follow_smoothing"),_SCS("get_follow_smoothing") ); //compatibility ADD_PROPERTY( PropertyInfo(Variant::REAL,"smoothing",PROPERTY_HINT_NONE,"",0),_SCS("_set_old_smoothing"),_SCS("get_follow_smoothing") ); ADD_PROPERTYI( PropertyInfo(Variant::REAL,"drag_margin/left",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_drag_margin"),_SCS("get_drag_margin"),MARGIN_LEFT); ADD_PROPERTYI( PropertyInfo(Variant::REAL,"drag_margin/top",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_drag_margin"),_SCS("get_drag_margin"),MARGIN_TOP); ADD_PROPERTYI( PropertyInfo(Variant::REAL,"drag_margin/right",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_drag_margin"),_SCS("get_drag_margin"),MARGIN_RIGHT); ADD_PROPERTYI( PropertyInfo(Variant::REAL,"drag_margin/bottom",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_drag_margin"),_SCS("get_drag_margin"),MARGIN_BOTTOM); BIND_CONSTANT( ANCHOR_MODE_DRAG_CENTER ); BIND_CONSTANT( ANCHOR_MODE_FIXED_TOP_LEFT ); } Camera2D::Camera2D() { anchor_mode=ANCHOR_MODE_DRAG_CENTER; rotating=false; current=false; limit[MARGIN_LEFT]=-10000000; limit[MARGIN_TOP]=-10000000; limit[MARGIN_RIGHT]=10000000; limit[MARGIN_BOTTOM]=10000000; drag_margin[MARGIN_LEFT]=0.2; drag_margin[MARGIN_TOP]=0.2; drag_margin[MARGIN_RIGHT]=0.2; drag_margin[MARGIN_BOTTOM]=0.2; camera_pos=Vector2(); first=true; smoothing_enabled=false; smoothing=5.0; zoom = Vector2(1, 1); h_drag_enabled=true; v_drag_enabled=true; h_ofs=0; v_ofs=0; }