From 831145dda85e5f8e892400726d5bfc76bb92b2f4 Mon Sep 17 00:00:00 2001
From: Mono <mono@nekolize.moe>
Date: Sat, 27 Nov 2021 11:27:42 +0100
Subject: [PATCH] Now also implemented rotation tool.

---
 .../tool/canvas/tools/general_use/hand.gd     |  1 +
 .../tool/canvas/tools/general_use/rotation.gd | 40 +++++++++++++++++++
 .../tool/canvas/tools/general_use/zoom.gd     |  1 +
 .../summer_day/tool/canvas/tools/tool_pool.gd |  1 +
 project.godot                                 | 10 +++--
 5 files changed, 49 insertions(+), 4 deletions(-)
 create mode 100644 addons/summer_day/tool/canvas/tools/general_use/rotation.gd

diff --git a/addons/summer_day/tool/canvas/tools/general_use/hand.gd b/addons/summer_day/tool/canvas/tools/general_use/hand.gd
index 53d92d3..952fcfa 100644
--- a/addons/summer_day/tool/canvas/tools/general_use/hand.gd
+++ b/addons/summer_day/tool/canvas/tools/general_use/hand.gd
@@ -4,6 +4,7 @@ class_name SummerDayHandCanvasTool
 
 func _init():
 	priority = 1
+	modifier_layer = 1
 
 
 var hand_grabbed = false
diff --git a/addons/summer_day/tool/canvas/tools/general_use/rotation.gd b/addons/summer_day/tool/canvas/tools/general_use/rotation.gd
new file mode 100644
index 0000000..566bc22
--- /dev/null
+++ b/addons/summer_day/tool/canvas/tools/general_use/rotation.gd
@@ -0,0 +1,40 @@
+extends SummerDayTool
+class_name SummerDayRotationCanvasTool
+
+
+var rotation_activated := false
+var initial_transform: Transform2D
+var initial_angle: float
+
+
+func _init():
+	priority = 1
+	modifier_layer = 2
+
+
+func _check_for_use(event: InputEvent, tool_context: SummerDayToolContext):
+	if event is InputEventMouseButton:
+		if event.button_index == BUTTON_LEFT:
+			if event.is_pressed() and event.shift and event.control:
+				initial_transform = tool_context.canvas_state.canvas_transform
+				var canvas_center = tool_context.canvas_state.rect_size * 0.5
+				initial_angle = event.position.angle_to_point(canvas_center)
+				rotation_activated = true
+			else:
+				rotation_activated = false
+	
+	if event is InputEventMouseMotion:
+		return rotation_activated
+	
+	return false
+
+
+func _run(event: InputEvent, tool_context: SummerDayToolContext):
+	var canvas_center = tool_context.canvas_state.rect_size * 0.5
+	var canvas_transform = initial_transform
+	canvas_transform.origin -= canvas_center
+	var current_angle = event.position.angle_to_point(canvas_center)
+	var rotation_angle = current_angle - initial_angle
+	canvas_transform = canvas_transform.rotated(rotation_angle)
+	canvas_transform.origin += canvas_center
+	tool_context.canvas_state.canvas_transform = canvas_transform
diff --git a/addons/summer_day/tool/canvas/tools/general_use/zoom.gd b/addons/summer_day/tool/canvas/tools/general_use/zoom.gd
index afb683c..998f391 100644
--- a/addons/summer_day/tool/canvas/tools/general_use/zoom.gd
+++ b/addons/summer_day/tool/canvas/tools/general_use/zoom.gd
@@ -9,6 +9,7 @@ var initial_mouse_position: Vector2
 
 func _init():
 	priority = 1
+	modifier_layer = 1
 
 
 func _check_for_use(event: InputEvent, tool_context: SummerDayToolContext):
diff --git a/addons/summer_day/tool/canvas/tools/tool_pool.gd b/addons/summer_day/tool/canvas/tools/tool_pool.gd
index d2b65bc..dd93047 100644
--- a/addons/summer_day/tool/canvas/tools/tool_pool.gd
+++ b/addons/summer_day/tool/canvas/tools/tool_pool.gd
@@ -7,6 +7,7 @@ func _init():
 		SummerDayFreeTransformCanvasTool.new(),
 		SummerDayHandCanvasTool.new(),
 		SummerDayZoomCanvasTool.new(),
+		SummerDayRotationCanvasTool.new(),
 	]
 
 # Called every frame. 'delta' is the elapsed time since the previous frame.
diff --git a/project.godot b/project.godot
index 5c0db88..22afcad 100644
--- a/project.godot
+++ b/project.godot
@@ -79,6 +79,11 @@ _global_script_classes=[ {
 "language": "GDScript",
 "path": "res://addons/summer_day/utilities/math_helper.gd"
 }, {
+"base": "SummerDayTool",
+"class": "SummerDayRotationCanvasTool",
+"language": "GDScript",
+"path": "res://addons/summer_day/tool/canvas/tools/general_use/rotation.gd"
+}, {
 "base": "Resource",
 "class": "SummerDayScene",
 "language": "GDScript",
@@ -129,6 +134,7 @@ _global_script_class_icons={
 "SummerDayHandCanvasTool": "",
 "SummerDayMainScreen": "",
 "SummerDayMathHelper": "",
+"SummerDayRotationCanvasTool": "",
 "SummerDayScene": "",
 "SummerDayTimeline": "",
 "SummerDayTool": "",
@@ -148,10 +154,6 @@ config/icon="res://icon.png"
 
 Util="res://addons/summer_day/utilities/math_helper.gd"
 
-[editor_plugins]
-
-enabled=PoolStringArray( "res://addons/summer_day/plugin.cfg" )
-
 [gdnative]
 
 singletons=[ "res://addons/godot-git-plugin/git_api.gdnlib" ]