Card system explanation #2

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opened 2026-06-04 14:22:49 +02:00 by fbouju · 1 comment

fbouju commented

2026-06-04 14:22:49 +02:00

Owner

Every card definition is the the res://scripts/globals/card_database.gd script.

it must follow a scrict template

Template

{
"id": "lucky_catch",
"title": "Lucky Catch",
"description": "blabla",
"max_level": 5,
"effects": {
	"duplicateFishCatching": 0.05
  }
}

"effects": {
	"duplicateFishCatching": 0.05
}

The name of the effect must match EXACTLY the name of the variable located in GameGlobals you want to change.

Calculation of the stats

Everything said here is in : res://scripts/globals/game_globals.gd

Every cards owned by the player live in the playerDeck dictionnary :

@onready var playerDeck: Dictionary = {} #Maps a card id to a level (smelly_lure: 3)

When a card in selected, it fires the function :

func applyCard(id: String) -> void:
	# Add or get the card in the deck and add one level to it
	playerDeck[id] = playerDeck.get(id, 0) + 1
	# Recompute all the stats from scratch
	recompute_stats()

the function adds the card to the playerDeck if it doesn't exist and adds a level if it does.
then every stats are recalculated each time with the playerDeck

The recompute is done by taking the base stats and adding all the card effects contained in the playerDeck :

func recompute_stats() -> void:
	# reset to base and recompute all stats with the current player deck
	dayLengthMultiplier        = 1.0
	fishSpawnMultiplier        = 1.0
	fishScaleMultiplier        = 1.0
	lureRadiusMultiplier       = 1.0
	reelingDistanceMultiplier  = 1
	fishFleeDistanceMultiplier = 1.0
	fishingLineMaxLength       = 96.0
	fishingLineHealth          = 1
	fishingLineMaxHealth       = 1
	piranhaSpawnRate           = 10.0
	piranhaSpawnable           = true
	duplicateFishCatching      = 0.0

	# apply every card in the player deck
	for id in playerDeck:
		var card = CardDatabase.get_card(id) # get the card info from database
		if card.is_empty():
			continue
		var level = playerDeck[id] # get current level of the card in the player deck
		for stat in card.effects: # for each effet in the card
			print(card.title, " ", stat, " +", card.effects[stat], " ", level)
			print("Before: ", stat, " ", get(stat))
			# this is messy i probably confusing but works for now
			# set the variable with the name of the stat in card effect to => get(baseStat) + card.effect[stat] * level
			set(stat, get(stat) + card.effects[stat] * level) 
			print("After: ", stat, " ", get(stat))

Every card definition is the the `res://scripts/globals/card_database.gd` script. **it must follow a scrict template** ## Template ``` json { "id": "lucky_catch", "title": "Lucky Catch", "description": "blabla", "max_level": 5, "effects": { "duplicateFishCatching": 0.05 } } ``` ```json "effects": { "duplicateFishCatching": 0.05 } ``` The name of the effect must match **EXACTLY** the name of the variable located in `GameGlobals` you want to change. ## Calculation of the stats **Everything said here is in :** `res://scripts/globals/game_globals.gd` Every cards owned by the player live in the playerDeck dictionnary : ```gd @onready var playerDeck: Dictionary = {} #Maps a card id to a level (smelly_lure: 3) ``` When a card in selected, it fires the function : ```gd func applyCard(id: String) -> void: # Add or get the card in the deck and add one level to it playerDeck[id] = playerDeck.get(id, 0) + 1 # Recompute all the stats from scratch recompute_stats() ``` - the function adds the card to the playerDeck if it doesn't exist and adds a level if it does. - **then every stats are recalculated each time with the playerDeck** The recompute is done by taking the base stats and adding all the card effects contained in the playerDeck : ```gd func recompute_stats() -> void: # reset to base and recompute all stats with the current player deck dayLengthMultiplier = 1.0 fishSpawnMultiplier = 1.0 fishScaleMultiplier = 1.0 lureRadiusMultiplier = 1.0 reelingDistanceMultiplier = 1 fishFleeDistanceMultiplier = 1.0 fishingLineMaxLength = 96.0 fishingLineHealth = 1 fishingLineMaxHealth = 1 piranhaSpawnRate = 10.0 piranhaSpawnable = true duplicateFishCatching = 0.0 # apply every card in the player deck for id in playerDeck: var card = CardDatabase.get_card(id) # get the card info from database if card.is_empty(): continue var level = playerDeck[id] # get current level of the card in the player deck for stat in card.effects: # for each effet in the card print(card.title, " ", stat, " +", card.effects[stat], " ", level) print("Before: ", stat, " ", get(stat)) # this is messy i probably confusing but works for now # set the variable with the name of the stat in card effect to => get(baseStat) + card.effect[stat] * level set(stat, get(stat) + card.effects[stat] * level) print("After: ", stat, " ", get(stat)) ```

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