impl camera

.gitignore

@@ -1,2 +1,8 @@
+.DS_Store
+
 # Godot 4+ specific ignores
 .godot/
+
+export_presets.cfg
+
+/AuthKey_VSYTQ75GZQ.p8

AssetLoaders/Enums.gd

@@ -0,0 +1,70 @@
+class_name Enums
+
+enum TileID {
+	TileVoid = 0,
+	TileBlank = 1,
+	TileHome = 2,
+	TileBattle = 3,
+	TileDraw = 4,
+	TileBonus = 5,
+	TileDrop = 6,
+	TileWarp = 7,
+	TileDrawx2 = 8,
+	TileBonusx2 = 9,
+	TileDropx2 = 10,
+	TileFlatWall = 11,
+	TileVoid2 = 12, # i'm not sure why there's 8 voids, or if they're even used
+	TileVoid3 = 13,
+	TileVoid4 = 14,
+	TileVoid5 = 15,
+	TileVoid6 = 16,
+	TileVoid7 = 17,
+	TileDeck = 18,
+	TileVoid8 = 19,
+	TileBattlex2 = 20,
+	TileMove = 21,
+	TileMovex2 = 22,
+	TileWarpMove = 23,
+	TileWarpMovex2 = 24,
+	TileIce = 25,
+	TileSnow = 26,
+	TileHeal = 27,
+	TileHealx2 = 28,
+	TileEvent = 29, # OJEdit says "Event (Blank Tile)"
+	TileUnknown = 30,
+	TileCoopBoss = 31,
+	TileDamage = 32,
+	TileDamagex2 = 33
+}
+
+static func get_tile_texture(id: int):
+	match id:
+		0: return ""
+		1: return "mass_common0.dat"
+		2: return "mass_check0.dat"
+		3: return "mass_encount0.dat"
+		4: return "mass_draw0.dat"
+		5: return "mass_bonus0.dat"
+		6: return "mass_drop0.dat"
+		7: return "mass_warp0.dat"
+		8: return "mass_drawL2.dat"
+		9: return "mass_bonusL2.dat"
+		10: return "mass_dropL2.dat"
+		11: return "mass_common0.dat"
+		12, 13, 14, 15, 16, 17: return ""
+		18: return "mass_editordeck.dat"
+		19: return ""
+		20: return "mass_encountL2.dat"
+		21: return "mass_move0.dat"
+		22: return "mass_moveL2.dat"
+		23: return "mass_warpmove0.dat"
+		24: return "mass_warpmoveL2.dat"
+		25: return "mass_snow0.dat"
+		26: return "mass_snow0.dat"
+		27: return "mass_heal0.dat"
+		28: return "mass_healL2.dat"
+		29: return "mass_common0.dat"
+		30: return "mass_common0.dat"
+		31: return "mass_boss.dat"
+		32: return "mass_damage.dat"
+		33: return "mass_damageL2.dat"

AssetLoaders/PakAssetLoader.gd

@@ -0,0 +1,99 @@
+class_name PakAssetLoader
+
+static var key = "a8Yb5$IpVobR,1Xph!k(#!B9h$V[o[r-I'x.37Q%E;lt2wGgk)hNF_p_!mF?Ds54.*8ErbCK,30".to_utf8_buffer()
+
+#loads a file from a .pak file.
+static func load_file(path: String):
+	var split = path.split(".pak/")
+	var pak = split[0]
+	var filename = split[1]
+	
+	var zip_reader = ZIPReader.new()
+	var err = zip_reader.open(pak + ".pak")
+	if err != OK:
+		report_errors(err, pak + ".pak")
+		zip_reader.close()
+	var bytes = zip_reader.read_file(filename)
+	zip_reader.close()
+	if bytes.size() == 0:
+		report_errors(ERR_FILE_NOT_FOUND, filename)
+	
+	if filename.ends_with(".dat"):
+		var magic = bytes[0]+bytes[1]+bytes[2]+bytes[3]
+		if magic == 0x25 + 0x7C + 0x0A + 0x42: #XOR'ed DDS file
+			unXOR(bytes)
+			magic = bytes[0]+bytes[1]+bytes[2]+bytes[3]
+
+		if magic == 0x44 + 0x44 + 0x53 + 0x20: #DDS file
+			var header = bytes.slice(0, 0x80)
+			bytes = bytes.slice(0x80)
+			var height = header[0xc] + (header[0xd] * 256)
+			var width = header[0x10] + (header[0x11] * 256)
+			var format = header[0x54]+header[0x55]+header[0x56]+header[0x57]
+			if format == 0:
+				fix_BGRA(bytes)
+				var img = Image.create_from_data(width, height, false, Image.FORMAT_RGBA8, bytes)
+				return ImageTexture.create_from_image(img)
+			elif format == 0x44 + 0x58 + 0x54 + 0x35:
+				var img = Image.create_from_data(width, height, false, Image.FORMAT_DXT5, bytes)
+				return ImageTexture.create_from_image(img)
+			else:
+				report_errors(ERR_FILE_UNRECOGNIZED, filename)
+				return
+		else:
+			report_errors(ERR_FILE_UNRECOGNIZED, filename)
+			return
+	elif filename.ends_with(".ogg"):
+		var magic = bytes[0]+bytes[1]+bytes[2]+bytes[3]
+
+		if magic == 0x4F + 0x67 + 0x67 + 0x53:
+			var stream = AudioStreamOggVorbis.load_from_buffer(bytes)
+			stream.loop = true
+			stream.loop_offset = get_loop_off(filename)
+			return stream
+		else:
+			report_errors(ERR_FILE_UNRECOGNIZED, filename)
+	elif filename.ends_with(".fld"):
+		return bytes
+
+
+static func fix_BGRA(bytes: PackedByteArray):
+	for i in range(0, bytes.size(), 4):
+		var tmp = bytes[i]
+		bytes[i] = bytes[i+2]
+		bytes[i+2] = tmp
+
+static func unXOR(bytes: PackedByteArray):
+	for i in range(bytes.size()):
+		bytes[i] ^= key[i % key.size()]
+
+
+static func get_loop_off(filename: String):
+	match filename:
+		"bgm/0.ogg":
+			return 1.72
+		"bgm/1.ogg":
+			return 2
+
+
+static func report_errors(err: int, filepath):
+	# See: https://docs.godotengine.org/en/latest/classes/class_@globalscope.html#enum-globalscope-error
+	var result_hash = {
+		ERR_FILE_NOT_FOUND: "File: not found",
+		ERR_FILE_BAD_DRIVE: "File: Bad drive error",
+		ERR_FILE_BAD_PATH: "File: Bad path error.",
+		ERR_FILE_NO_PERMISSION: "File: No permission error.",
+		ERR_FILE_ALREADY_IN_USE: "File: Already in use error.",
+		ERR_FILE_CANT_OPEN: "File: Can't open error.",
+		ERR_FILE_CANT_WRITE: "File: Can't write error.",
+		ERR_FILE_CANT_READ: "File: Can't read error.",
+		ERR_FILE_UNRECOGNIZED: "File: Unrecognized error.",
+		ERR_FILE_CORRUPT: "File: Corrupt error.",
+		ERR_FILE_MISSING_DEPENDENCIES: "File: Missing dependencies error.",
+		ERR_FILE_EOF: "File: End of file (EOF) error."
+	}
+	if err in result_hash:
+		print("Error: ", result_hash[err], " ", filepath)
+	else:
+		print("Unknown error with file ", filepath, " error code: ", err)
+

Field/field.gd

@@ -0,0 +1,53 @@
+extends Node2D
+
+var width: int
+var height: int
+var tiles: Array = []
+var x = 1
+var homes
+var next_home
+
+func _init():
+	var bytes = PakAssetLoader.load_file("user://data/fields.pak/field_practice.fld")
+	create_from_buffer(bytes)
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	homes = tiles.filter(is_home)
+	$Player.position = homes[0].position
+	next_home = homes[1].position
+	homes = [homes[0], homes[1], homes[3], homes[2]]
+	pass
+
+func is_home(tile):
+	return tile.id == Enums.TileID.TileHome
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	if $Player.position != next_home:
+		$Player.position = $Player.position.move_toward(next_home, 4)
+	else:
+		x += 1
+		next_home = homes[x % 4].position
+	pass
+
+
+func create_from_buffer(bytes: PackedByteArray):
+	var num_tiles = bytes.size() / 8
+
+	# all boards are square
+	height = int(sqrt(num_tiles))
+	width = int(sqrt(num_tiles))
+	var j = 0;
+	for i in range(0, num_tiles):
+		var tile = load("res://Field/tile.tscn").instantiate()
+		tile.id = bytes.decode_u32(i * 8)
+		var exit_bits = bytes.decode_u8((i * 8) + 4)
+		add_child.call_deferred(tile)
+		tile.position = Vector2(((i % width) * 158) + 64, (j * 158) + 64)
+		tiles.append(tile)
+		if i % height == height - 1:
+			j += 1
+	#print(bytes)
+	pass

Field/field.tscn

@@ -0,0 +1,11 @@
+[gd_scene load_steps=4 format=3 uid="uid://qipfodwbk1gf"]
+
+[ext_resource type="Script" path="res://Field/field.gd" id="1_6uvjw"]
+[ext_resource type="PackedScene" uid="uid://sp3iv6cxuerm" path="res://player.tscn" id="2_oi7aa"]
+[ext_resource type="Script" path="res://Player/player.gd" id="3_vsc2e"]
+
+[node name="Field" type="Node2D"]
+script = ExtResource("1_6uvjw")
+
+[node name="Player" parent="." instance=ExtResource("2_oi7aa")]
+script = ExtResource("3_vsc2e")

Field/tile.gd

@@ -0,0 +1,26 @@
+extends Node2D
+
+var id: Enums.TileID
+var enter: Array
+var exit: Array
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	var tex = Enums.get_tile_texture(id)
+	if tex != "":
+		$Sprite2D.texture = PakAssetLoader.load_file("user://data/field.pak/" + tex)
+		$Base.texture = PakAssetLoader.load_file("user://data/field.pak/mass_base0.dat")
+
+	# if id == Enums.TileID.TileIce:
+	# 	var layer = Sprite2D.new()
+	# 	var snow = Enums.get_tile_texture(Enums.TileID.TileSnow)
+	# 	layer.texture = PakAssetLoader.load_file("user://data/field.pak/" + snow)
+	# 	layer.flip_v = true
+	# 	print($Sprite2D.z_index)
+	# 	$Sprite2D.add_child(layer)
+	# 	layer.show_behind_parent = true
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	pass

Field/tile.tscn

@@ -0,0 +1,14 @@
+[gd_scene load_steps=2 format=3 uid="uid://b8vsmp8c1wqv6"]
+
+[ext_resource type="Script" path="res://Field/tile.gd" id="1_kltr3"]
+
+[node name="Tile" type="Node2D"]
+script = ExtResource("1_kltr3")
+
+[node name="Base" type="Sprite2D" parent="."]
+scale = Vector2(1.45, 1.45)
+flip_v = true
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+scale = Vector2(1.2, 1.2)
+flip_v = true

PanningCamera/PanningCamera2D.gd

@@ -0,0 +1,42 @@
+extends Camera2D
+class_name PanningCamera2D
+
+@export var MIN_ZOOM: float = 0.5
+@export var MAX_ZOOM: float = 3.0
+@export var ZOOM_RATE: float = 8.0
+@export var ZOOM_INCREMENT: float = 0.1
+
+var target_zoom: float = 1.0
+var reset_pos: Vector2 = Vector2(0.0, 0.0)
+
+
+func _physics_process(delta: float) -> void:
+	zoom = lerp(zoom, target_zoom * Vector2.ONE, ZOOM_RATE * delta)
+	set_physics_process(not is_equal_approx(zoom.x, target_zoom))
+
+
+func _unhandled_input(event: InputEvent) -> void:
+	if event is InputEventMouseButton:
+		if event.is_pressed():
+			if event.button_index == MOUSE_BUTTON_WHEEL_UP:
+				zoom_in()
+			if event.button_index == MOUSE_BUTTON_WHEEL_DOWN:
+				zoom_out()
+	if event is InputEventMouseMotion:
+		if event.button_mask == MOUSE_BUTTON_MASK_LEFT:
+			position -= event.relative / zoom
+	if event is InputEventKey:
+		if event.keycode == KEY_SPACE:
+			target_zoom = 1.0
+			zoom = Vector2(1.0, 1.0)
+			position = reset_pos
+
+
+func zoom_in() -> void:
+	target_zoom = max(target_zoom - ZOOM_INCREMENT, MIN_ZOOM)
+	set_physics_process(true)
+
+
+func zoom_out() -> void:
+	target_zoom = min(target_zoom + ZOOM_INCREMENT, MAX_ZOOM)
+	set_physics_process(true)

Player/player.gd

@@ -0,0 +1,24 @@
+extends Node2D
+
+var yvel = 1
+var yoff = 0
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	$Sprite2D.texture = PakAssetLoader.load_file("user://data/units.pak/tomomo_00_00.dat")
+	$Sprite2D.position = get_global_transform().origin
+	$Sprite2D.position.y -= 128
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(_delta):
+	var pos = get_global_transform().origin
+	pos.y += -128 + yoff
+	yvel -= 1
+	if yvel < -9:
+		yvel = 9 
+	pos.y += yvel
+	yoff += yvel
+	$Sprite2D.position = pos
+

Player/player.tscn

@@ -0,0 +1,13 @@
+[gd_scene load_steps=2 format=3 uid="uid://dtm0201qhcn4d"]
+
+[ext_resource type="Script" path="res://player.gd" id="1_6ggpr"]
+
+[node name="Player" type="Node2D"]
+z_index = 1
+script = ExtResource("1_6ggpr")
+metadata/_edit_group_ = true
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+top_level = true
+z_index = 2
+position = Vector2(2.08165e-12, -128)

main.tscn

@@ -0,0 +1,16 @@
+[gd_scene load_steps=3 format=3 uid="uid://djirenq1psstj"]
+
+[ext_resource type="Script" path="res://PanningCamera/PanningCamera2D.gd" id="1_vtapg"]
+[ext_resource type="PackedScene" uid="uid://qipfodwbk1gf" path="res://Field/field.tscn" id="1_y0qkv"]
+
+[node name="Main" type="Node2D"]
+
+[node name="Camera2D" type="Camera2D" parent="."]
+script = ExtResource("1_vtapg")
+MIN_ZOOM = null
+MAX_ZOOM = null
+ZOOM_RATE = 5.0
+
+[node name="Field" parent="." instance=ExtResource("1_y0qkv")]
+rotation = 0.523599
+skew = 0.523599

player.tscn

@@ -0,0 +1,38 @@
+[gd_scene load_steps=2 format=3 uid="uid://sp3iv6cxuerm"]
+
+[sub_resource type="GDScript" id="GDScript_hd04s"]
+script/source = "extends Node2D
+
+var yvel = 1
+var yoff = 0
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	$Sprite2D.texture = PakAssetLoader.load_file(\"user://data/units.pak/tomomo_00_00.dat\")
+	$Sprite2D.position = get_global_transform().origin
+	$Sprite2D.position.y -= 128
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(_delta):
+	var pos = get_global_transform().origin
+	pos.y += -128 + yoff
+	yvel -= 1
+	if yvel < -9:
+		yvel = 9 
+	pos.y += yvel
+	yoff += yvel
+	$Sprite2D.position = pos
+
+"
+
+[node name="Player" type="Node2D"]
+z_index = 1
+script = SubResource("GDScript_hd04s")
+metadata/_edit_group_ = true
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+top_level = true
+z_index = 2
+position = Vector2(2.08165e-12, -128)