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Layer Opacity - Change alpha of each layer

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Added a slider under the layer add/remove/etc buttons that changes the currently selected layer's transparency. It gets saved in .png and .pxo files, while respecting non-opaque pixels in the image too. Which means, their alpha values aren't being overwritten.
This commit is contained in:
OverloadedOrama 2019-12-24 23:51:08 +02:00
parent aa860960e2
commit ed2e757c11
7 changed files with 77 additions and 35 deletions
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25
Scripts/Canvas.gd
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@ -36,8 +36,8 @@ func _ready() -> void:
var tex := ImageTexture.new()
tex.create_from_image(sprite, 0)
#Store [Image, ImageTexture, Layer Name, Visibity boolean]
layers.append([sprite, tex, "Layer 0", true])
#Store [Image, ImageTexture, Layer Name, Visibity boolean, Opacity]
layers.append([sprite, tex, "Layer 0", true, 1])
generate_layer_panels()
@ -407,18 +407,19 @@ func _draw() -> void:
#Draw current frame layers
for texture in layers:
var modulate_color := Color(1, 1, 1, texture[4])
if texture[3]: #if it's visible
draw_texture(texture[1], location)
draw_texture(texture[1], location, modulate_color)
if Global.tile_mode:
draw_texture(texture[1], Vector2(location.x, location.y + size.y)) #Down
draw_texture(texture[1], Vector2(location.x - size.x, location.y + size.y)) #Down Left
draw_texture(texture[1], Vector2(location.x - size.x, location.y)) #Left
draw_texture(texture[1], location - size) #Up left
draw_texture(texture[1], Vector2(location.x, location.y - size.y)) #Up
draw_texture(texture[1], Vector2(location.x + size.x, location.y - size.y)) #Up right
draw_texture(texture[1], Vector2(location.x + size.x, location.y)) #Right
draw_texture(texture[1], location + size) #Down right
draw_texture(texture[1], Vector2(location.x, location.y + size.y), modulate_color) #Down
draw_texture(texture[1], Vector2(location.x - size.x, location.y + size.y), modulate_color) #Down Left
draw_texture(texture[1], Vector2(location.x - size.x, location.y), modulate_color) #Left
draw_texture(texture[1], location - size, modulate_color) #Up left
draw_texture(texture[1], Vector2(location.x, location.y - size.y), modulate_color) #Up
draw_texture(texture[1], Vector2(location.x + size.x, location.y - size.y), modulate_color) #Up right
draw_texture(texture[1], Vector2(location.x + size.x, location.y), modulate_color) #Right
draw_texture(texture[1], location + size, modulate_color) #Down right
#Idea taken from flurick (on GitHub)
if Global.draw_grid:
@ -476,7 +477,7 @@ func generate_layer_panels() -> void:
layer_container.get_child(1).get_child(0).texture = layers[i][1]
layer_container.get_child(1).get_child(1).text = layers[i][2]
layer_container.get_child(1).get_child(2).text = layers[i][2]
layers[i][3] = true #set visible
layers[i][3] = true # Set visible
Global.vbox_layer_container.add_child(layer_container)
func pencil_and_eraser(mouse_pos : Vector2, color : Color, current_mouse_button : String, current_action := "None") -> void: