BDSP Catch Rate Calculator
This calculator helps you estimate the catch rate of Pokémon in Pokémon Brilliant Diamond and Shining Pearl (BDSP). The catch rate is influenced by several factors, including the Pokémon's base catch rate, your Pokémon's level, the target Pokémon's current HP, status conditions, and the type of Poké Ball used.
The formula used in this calculator is a simplified representation of the mechanics, focusing on the most impactful variables:
Catch Rate = (((3 * Max HP - 2 * Current HP) * Base Catch Rate * Ball Bonus) / (3 * Max HP)) * Status Modifier * Shake Modifier
Where:
- Max HP: The target Pokémon's maximum HP at its current level.
- Current HP: The target Pokémon's current HP.
- Base Catch Rate: A fixed value for each Pokémon species.
- Ball Bonus: A multiplier based on the Poké Ball used.
- Status Modifier: A multiplier based on status conditions (e.g., Sleep/Freeze = 2.5, Paralysis/Poison/Burn = 1.5, None = 1.0).
- Shake Modifier: Represents the outcome of the ball shake animation. This is simplified here as a general probability.
.calculator-container {
font-family: sans-serif;
max-width: 800px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 8px;
background-color: #f9f9f9;
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.calculator-info {
margin-bottom: 30px;
padding-bottom: 20px;
border-bottom: 1px solid #eee;
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margin-bottom: 10px;
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.calculator-info p {
color: #555;
line-height: 1.6;
margin-bottom: 10px;
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list-style: disc;
margin-left: 20px;
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.calculator-info li {
margin-bottom: 5px;
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padding: 2px 5px;
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margin-bottom: 20px;
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margin-bottom: 5px;
font-weight: bold;
color: #444;
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.form-group input[type="number"],
.form-group select {
width: calc(100% – 12px);
padding: 8px;
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box;
}
.form-group button {
background-color: #4CAF50;
color: white;
padding: 10px 15px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 16px;
margin-top: 10px;
}
.form-group button:hover {
background-color: #45a049;
}
#result {
margin-top: 20px;
padding: 15px;
background-color: #e7f3fe;
border: 1px solid #b3cde0;
border-radius: 4px;
font-size: 18px;
color: #31708f;
text-align: center;
font-weight: bold;
}
var calculateCatchRate = function() {
var maxHp = parseFloat(document.getElementById("pokemonMaxHp").value);
var currentHp = parseFloat(document.getElementById("pokemonCurrentHp").value);
var baseCatchRate = parseFloat(document.getElementById("baseCatchRate").value);
var ballBonus = parseFloat(document.getElementById("ballBonus").value);
var statusModifier = parseFloat(document.getElementById("statusModifier").value);
var resultElement = document.getElementById("result");
if (isNaN(maxHp) || isNaN(currentHp) || isNaN(baseCatchRate) || isNaN(ballBonus) || isNaN(statusModifier)) {
resultElement.innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (maxHp <= 0) {
resultElement.innerHTML = "Max HP must be a positive number.";
return;
}
if (currentHp maxHp) {
currentHp = maxHp; // Cap current HP at max HP
}
if (baseCatchRate 255) {
resultElement.innerHTML = "Base Catch Rate must be between 0 and 255.";
return;
}
if (ballBonus <= 0) {
resultElement.innerHTML = "Ball Bonus must be a positive number.";
return;
}
// Simplified formula for catch rate calculation
var catchRateNumerator = (3 * maxHp – 2 * currentHp) * baseCatchRate * ballBonus * statusModifier;
var catchRateDenominator = (3 * maxHp);
// Prevent division by zero if somehow maxHp is 0 (though checked above)
if (catchRateDenominator === 0) {
resultElement.innerHTML = "Invalid calculation: Division by zero.";
return;
}
var catchRate = (catchRateNumerator / catchRateDenominator);
// The actual catch mechanics involve shaking, which is probabilistic.
// We'll display the calculated 'catch probability' before the shake.
// The final probability would be further modified by the ball shakes.
// For simplicity, we'll display this as a percentage.
var finalProbability = catchRate / 255; // Normalize to a probability out of 1
var percentage = Math.max(0, Math.min(100, finalProbability * 100)); // Cap between 0% and 100%
resultElement.innerHTML = "Estimated Catch Probability: " + percentage.toFixed(2) + "%";
};