SmashPotionSTEAL
minecraftFreev1.0.0
Description
Create a Minecraft Paper plugin for version 1.21.11 called SmashPotions.
This plugin is a PvP-based potion system where players gain and remove potion effects depending on kills and deaths.
IMPORTANT RULES
• Potion effects must be INFINITE (very large duration like Integer.MAX_VALUE).
• Players cannot stack unlimited effects.
• Maximum positive effects a player can have = 4
• Maximum negative effects a player can have = 3
• If player already has the maximum effects, the system should upgrade levels instead of giving new effects.
CORE SYSTEM
When a player kills another player:
1 kill = 1 effect interaction.
CASE 1 — Killer has NO negative effects
If the killer has no negative effects, the plugin should give the killer 1 random positive effect.
Example positive effects:
SPEED
STRENGTH
REGENERATION
JUMP_BOOST
HASTE
RESISTANCE
FIRE_RESISTANCE
ABSORPTION
NIGHT_VISION
HEALTH_BOOST
SATURATION
DOLPHINS_GRACE
SLOW_FALLING
Effects must be applied with infinite duration.
MAX POSITIVE EFFECT LIMIT
Players can only have maximum 4 positive effects.
If a player kills someone and:
• They have less than 4 positive effects → give a random new positive effect.
• They already have 4 positive effects → randomly select one of their current positive effects and increase its level (amplifier +1).
Example:
Player has:
Speed I
Strength I
Regeneration I
Jump Boost I
Next kill →
Random effect levels up.
Example result:
Speed II
CASE 2 — Killer HAS negative effects
If the killer currently has negative effects:
• Killing a player removes ONE random negative effect from the player.
Example:
Player has:
Blindness
Weakness
Kill someone →
Randomly remove one of them.
CASE 3 — After all negative effects removed
When all negative effects are removed, the next kill will again give a positive effect.
DEATH SYSTEM
When a player dies in PvP:
They receive 1 random negative potion effect.
Negative effects list example:
BLINDNESS
POISON
WITHER
SLOWNESS
WEAKNESS
MINING_FATIGUE
HUNGER
DARKNESS
NAUSEA
MAX NEGATIVE EFFECT LIMIT
Players can only have maximum 3 negative effects.
If a player already has 3 negative effects and dies again:
• Randomly select one existing negative effect and increase its level.
Example:
Player has:
Weakness I
Blindness I
Slowness I
Next death →
Random effect level increases.
Example result:
Weakness II
All negative effects must also be infinite duration.
CHAT MESSAGES
The plugin should send chat messages to players when events happen.
Example messages:
Positive gain:
[SmashPotions] You gained {effect}
Negative gain:
[SmashPotions] You received negative effect {effect}
Negative removed:
[SmashPotions] One negative effect has been removed!
Kill reward:
[SmashPotions] You killed {player} and gained {effect}
Level up message:
[SmashPotions] Your {effect} leveled up to {level}
All messages must be configurable in config.yml.
COMMAND SYSTEM
Main command:
/smashpotions
Permission:
smashpotions.admin
ADMIN COMMANDS
Give positive effect:
/smashpotions add <player> positive <effect>
Give negative effect:
/smashpotions add <player> negative <effect>
Remove specific effect:
/smashpotions remove <player> <effect>
Clear all effects:
/smashpotions clear <player>
Reload config:
/smashpotions reload
VIEW COMMAND
Players or admins should be able to check current effects.
Command:
/smashpotions view <player>
Example output:
Positive Effects:
Speed II
Strength I
Negative Effects:
Weakness I
TECHNICAL REQUIREMENTS
• Plugin must be written in Java.
• Compatible with PaperMC 1.21.11.
• Potion effects must be applied with infinite duration.
• Efficient event handling for PvP kills.
• No console errors.
• Clean and organized code.
Suggested project structure:
SmashPotions
│
├ SmashPotions.java
├ KillListener.java
├ EffectManager.java
├ CommandManager.java
├ ViewCommand.java
└ ConfigManager.java
plugin.yml example:
name: SmashPotions
version: 1.0
main: com.smashpotions.SmashPotions
api-version: 1.21
commands:
smashpotions:
permission: smashpotions.admin
permissions:
smashpotions.admin:
default: op
This plugin is a PvP-based potion system where players gain and remove potion effects depending on kills and deaths.
IMPORTANT RULES
• Potion effects must be INFINITE (very large duration like Integer.MAX_VALUE).
• Players cannot stack unlimited effects.
• Maximum positive effects a player can have = 4
• Maximum negative effects a player can have = 3
• If player already has the maximum effects, the system should upgrade levels instead of giving new effects.
CORE SYSTEM
When a player kills another player:
1 kill = 1 effect interaction.
CASE 1 — Killer has NO negative effects
If the killer has no negative effects, the plugin should give the killer 1 random positive effect.
Example positive effects:
SPEED
STRENGTH
REGENERATION
JUMP_BOOST
HASTE
RESISTANCE
FIRE_RESISTANCE
ABSORPTION
NIGHT_VISION
HEALTH_BOOST
SATURATION
DOLPHINS_GRACE
SLOW_FALLING
Effects must be applied with infinite duration.
MAX POSITIVE EFFECT LIMIT
Players can only have maximum 4 positive effects.
If a player kills someone and:
• They have less than 4 positive effects → give a random new positive effect.
• They already have 4 positive effects → randomly select one of their current positive effects and increase its level (amplifier +1).
Example:
Player has:
Speed I
Strength I
Regeneration I
Jump Boost I
Next kill →
Random effect levels up.
Example result:
Speed II
CASE 2 — Killer HAS negative effects
If the killer currently has negative effects:
• Killing a player removes ONE random negative effect from the player.
Example:
Player has:
Blindness
Weakness
Kill someone →
Randomly remove one of them.
CASE 3 — After all negative effects removed
When all negative effects are removed, the next kill will again give a positive effect.
DEATH SYSTEM
When a player dies in PvP:
They receive 1 random negative potion effect.
Negative effects list example:
BLINDNESS
POISON
WITHER
SLOWNESS
WEAKNESS
MINING_FATIGUE
HUNGER
DARKNESS
NAUSEA
MAX NEGATIVE EFFECT LIMIT
Players can only have maximum 3 negative effects.
If a player already has 3 negative effects and dies again:
• Randomly select one existing negative effect and increase its level.
Example:
Player has:
Weakness I
Blindness I
Slowness I
Next death →
Random effect level increases.
Example result:
Weakness II
All negative effects must also be infinite duration.
CHAT MESSAGES
The plugin should send chat messages to players when events happen.
Example messages:
Positive gain:
[SmashPotions] You gained {effect}
Negative gain:
[SmashPotions] You received negative effect {effect}
Negative removed:
[SmashPotions] One negative effect has been removed!
Kill reward:
[SmashPotions] You killed {player} and gained {effect}
Level up message:
[SmashPotions] Your {effect} leveled up to {level}
All messages must be configurable in config.yml.
COMMAND SYSTEM
Main command:
/smashpotions
Permission:
smashpotions.admin
ADMIN COMMANDS
Give positive effect:
/smashpotions add <player> positive <effect>
Give negative effect:
/smashpotions add <player> negative <effect>
Remove specific effect:
/smashpotions remove <player> <effect>
Clear all effects:
/smashpotions clear <player>
Reload config:
/smashpotions reload
VIEW COMMAND
Players or admins should be able to check current effects.
Command:
/smashpotions view <player>
Example output:
Positive Effects:
Speed II
Strength I
Negative Effects:
Weakness I
TECHNICAL REQUIREMENTS
• Plugin must be written in Java.
• Compatible with PaperMC 1.21.11.
• Potion effects must be applied with infinite duration.
• Efficient event handling for PvP kills.
• No console errors.
• Clean and organized code.
Suggested project structure:
SmashPotions
│
├ SmashPotions.java
├ KillListener.java
├ EffectManager.java
├ CommandManager.java
├ ViewCommand.java
└ ConfigManager.java
plugin.yml example:
name: SmashPotions
version: 1.0
main: com.smashpotions.SmashPotions
api-version: 1.21
commands:
smashpotions:
permission: smashpotions.admin
permissions:
smashpotions.admin:
default: op
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Seller
Choco Milk
0
downloads
Versionv1.0.0
Platformminecraft
Typepaper
Minecraft VersionMC 1.21
CategoryMinecraft Plugins > Gameplay
Published on09/03/2026
Last update21/04/2026
Free