small update

boss prototype, auto planter, visual reworks, bug fixes

engine/runes.py

@@ -3,18 +3,19 @@ from __future__ import annotations
 import random
 
 # Rune kinds (gems). Each rune is an item equipped into a plant's slots.
-RUNE_COLORS = ("sapphire", "ruby", "amethyst", "jade", "brown")
+RUNE_COLORS = ("sapphire", "ruby", "amethyst", "jade", "brown", "pearl")
 RUNE_NAMES = {
     "sapphire": "Sapphire Rune",
     "ruby": "Ruby Rune",
     "amethyst": "Amethyst Rune",
     "jade": "Jade Rune",
     "brown": "Brown Rune",
+    "pearl": "Pearl Rune",
 }
 
-# Tier classification: sapphire/ruby/amethyst/jade are Tier 1, brown is Tier 2.
+# Tier classification: sapphire/ruby/amethyst/jade are Tier 1, brown & pearl Tier 2.
 TIER1_COLORS = ("sapphire", "ruby", "amethyst", "jade")
-TIER2_COLORS = ("brown",)
+TIER2_COLORS = ("brown", "pearl")
 RUNE_TIERS = {c: 1 for c in TIER1_COLORS}
 RUNE_TIERS.update({c: 2 for c in TIER2_COLORS})
 
@@ -25,6 +26,7 @@ RUNE_ICON_FILES = {
     "jade": "jade_rune",
     "amethyst": "amethyst_rune",
     "brown": "rune_brown",
+    "pearl": "pearl_rune",
 }
 
 # Old color names kept in earlier saves, mapped to the current gem names.
@@ -43,31 +45,39 @@ def canonical_color(color: str) -> str:
 
 # Primitive effects: each rune rolls its own stat and stacks additively with
 # other equipped runes of the same effect. Brown is rarer and rolls lower, but
-# turns part of the damage this plant deals into a Wilt.
+# turns part of the damage this plant deals into a Wilt. Pearl rolls a chunk of
+# critical hit chance.
 RUNE_EFFECTS = {
     "ruby": "damage",          # +damage dealt
     "sapphire": "shield",      # +shielding
     "jade": "healing",         # +healing received
     "amethyst": "damage_taken",  # -damage taken
     "brown": "wilt",           # damage dealt also Wils the target
+    "pearl": "crit",           # +critical hit chance
 }
 PCT_MIN = 25
 PCT_MAX = 35
 BROWN_PCT_MIN = 5
 BROWN_PCT_MAX = 15
+PEARL_PCT_MIN = 20
+PEARL_PCT_MAX = 40
 # a plant can't stack more than this many runes of the same type
 MAX_RUNES_PER_TYPE = 2
+# runes sacrificed to reroll one rune to a higher stat
+RUNE_SACRIFICE_COST = 3
 # coin costs to buy a random rune of a tier in the runes shop
 T1_RUNE_COST = 100
 T2_RUNE_COST = 150
-# brown drops less often than the other runes (relative weights)
-RUNE_WEIGHTS = {"sapphire": 1.0, "ruby": 1.0, "amethyst": 1.0, "jade": 1.0, "brown": 0.75}
+# brown & pearl drop less often than the other runes (relative weights)
+RUNE_WEIGHTS = {"sapphire": 1.0, "ruby": 1.0, "amethyst": 1.0, "jade": 1.0,
+                "brown": 0.75, "pearl": 0.75}
 _EFFECT_TEXTS = {
     "ruby": "+{pct}% damage dealt",
     "sapphire": "+{pct}% shielding",
     "jade": "+{pct}% healing",
     "amethyst": "-{pct}% damage taken",
     "brown": "deals {pct}% of damage as Wilt",
+    "pearl": "+{pct}% critical chance",
 }
 RUNE_SUMMARIES = {
     "ruby": "Increases damage dealt",
@@ -75,6 +85,7 @@ RUNE_SUMMARIES = {
     "jade": "Increases healing received",
     "amethyst": "Reduces damage taken",
     "brown": "Deals a portion of damage as Wilt",
+    "pearl": "Increases critical hit chance",
 }
 
 MAX_RUNE_SLOTS = 3
@@ -91,12 +102,23 @@ def random_color() -> str:
 
 
 def roll_pct(color: str = None) -> int:
-    """Roll a rune's stat percentage. Brown rolls 5-15; the rest 25-35."""
+    """Roll a rune's stat percentage. Brown rolls 5-15, pearl 20-40, the rest 25-35."""
     if color == "brown":
         return random.randint(BROWN_PCT_MIN, BROWN_PCT_MAX)
+    if color == "pearl":
+        return random.randint(PEARL_PCT_MIN, PEARL_PCT_MAX)
     return random.randint(PCT_MIN, PCT_MAX)
 
 
+def max_pct(color: str) -> int:
+    """The highest stat a rune of `color` can roll (brown/pearl have their own caps)."""
+    if color == "brown":
+        return BROWN_PCT_MAX
+    if color == "pearl":
+        return PEARL_PCT_MAX
+    return PCT_MAX
+
+
 def name(color: str) -> str:
     return RUNE_NAMES.get(color, "Rune")
 
@@ -106,11 +128,11 @@ def tier(color: str) -> int:
 
 
 def roll_ratio(rune) -> float:
-    """How close a rune's roll is to its own maximum (0..1). Brown's 5-15 range
-    is compared to its 15 cap, so a maxed brown ranks equally with a maxed
-    yellow even though 15 < 35."""
-    max_pct = BROWN_PCT_MAX if rune.get("color") == "brown" else PCT_MAX
-    return rune.get("pct", 0) / max_pct
+    """How close a rune's roll is to its own maximum (0..1). Each color is
+    compared to its own cap, so a maxed brown or pearl ranks equally with a
+    maxed ruby even though 15 < 35."""
+    cap = max_pct(rune.get("color"))
+    return rune.get("pct", 0) / cap
 
 
 def effect_text(color: str, pct: int) -> str:
@@ -124,6 +146,7 @@ _CARD_TEXTS = {
     "jade": "+{pct}% heal",
     "amethyst": "-{pct}% taken",
     "brown": "Wilt {pct}%",
+    "pearl": "+{pct}% crit",
 }
 
 
@@ -149,9 +172,11 @@ def summary(color: str) -> str:
 
 
 def roll_range(color: str) -> str:
-    """The stat range a rune of `color` rolls between (brown is lower)."""
+    """The stat range a rune of `color` rolls between (brown/pearl are lower)."""
     if color == "brown":
         return f"{BROWN_PCT_MIN}–{BROWN_PCT_MAX}%"
+    if color == "pearl":
+        return f"{PEARL_PCT_MIN}–{PEARL_PCT_MAX}%"
     return f"{PCT_MIN}–{PCT_MAX}%"