37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#ifndef CONSTANTS_H
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#define CONSTANTS_H
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#include <stdint.h>
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#include <uint256.h>
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#include <stdbool.h>
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#define DECIMALS 1000000000000ULL
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#define EMISSION_SPEED_FACTOR 20
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const uint64_t M_CAP = 18446744073709551615ULL; // Max uint64
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const uint64_t TAIL_EMISSION = (uint64_t)(1.0 * DECIMALS); // Emission floor is 1.0 coins per block
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// No max supply. Instead of halving, it'll follow a more gradual, Monero-like emission curve.
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static inline uint64_t CalculateBlockReward(uint256_t currentSupply, uint64_t height) {
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// Inclusive of block 0
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if (current_supply.limbs[1] > 0 ||
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current_supply.limbs[2] > 0 ||
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current_supply.limbs[3] > 0 ||
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current_supply.limbs[0] >= M_CAP) {
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return TAIL_EMISSION;
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}
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uint64_t supply_64 = current_supply.limbs[0];
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// Formula: (M - Supply) >> 2^k - lifted from Monero's codebase (thanks guys!)
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uint64_t reward = (M_CAP - supply_64) >> EMISSION_SPEED_FACTOR;
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// Check if the calculated reward has fallen below the floor
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if (reward < TAIL_EMISSION) {
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return TAIL_EMISSION;
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}
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return reward;
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}
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#endif |