pokeemerald/test/battle/move.c

#include "global.h"
#include "test/battle.h"

SINGLE_BATTLE_TEST("Accuracy controls the proportion of misses")
{
    u32 move;
    PARAMETRIZE { move = MOVE_DYNAMIC_PUNCH; }
    PARAMETRIZE { move = MOVE_THUNDER; }
    PARAMETRIZE { move = MOVE_HYDRO_PUMP; }
    PARAMETRIZE { move = MOVE_RAZOR_LEAF; }
    PARAMETRIZE { move = MOVE_SCRATCH; }
    ASSUME(0 < gBattleMoves[move].accuracy && gBattleMoves[move].accuracy <= 100);
    PASSES_RANDOMLY(gBattleMoves[move].accuracy, 100, RNG_ACCURACY);
    GIVEN {
        PLAYER(SPECIES_WOBBUFFET);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(player, move); }
    } SCENE {
        ANIMATION(ANIM_TYPE_MOVE, move, player);
    }
}

SINGLE_BATTLE_TEST("Secondary Effect Chance controls the proportion of secondary effects")
{
    u32 move;
    PARAMETRIZE { move = MOVE_THUNDER_SHOCK; }
    PARAMETRIZE { move = MOVE_DISCHARGE; }
    PARAMETRIZE { move = MOVE_NUZZLE; }
    ASSUME(gBattleMoves[move].effect == EFFECT_PARALYZE_HIT);
    ASSUME(0 < gBattleMoves[move].secondaryEffectChance && gBattleMoves[move].secondaryEffectChance <= 100);
    PASSES_RANDOMLY(gBattleMoves[move].secondaryEffectChance, 100, RNG_SECONDARY_EFFECT);
    GIVEN {
        PLAYER(SPECIES_WOBBUFFET);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(player, move); }
    } SCENE {
        STATUS_ICON(opponent, paralysis: TRUE);
    }
}

SINGLE_BATTLE_TEST("Turn order is determined by priority")
{
    GIVEN {
        ASSUME(gBattleMoves[MOVE_QUICK_ATTACK].priority > gBattleMoves[MOVE_TACKLE].priority);
        PLAYER(SPECIES_WOBBUFFET);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(player, MOVE_QUICK_ATTACK); MOVE(opponent, MOVE_TACKLE); }
    } SCENE {
        ANIMATION(ANIM_TYPE_MOVE, MOVE_QUICK_ATTACK, player);
        ANIMATION(ANIM_TYPE_MOVE, MOVE_TACKLE, opponent);
    }
}

SINGLE_BATTLE_TEST("Turn order is determined by Speed if priority ties")
{
    GIVEN {
        PLAYER(SPECIES_WOBBUFFET) { Speed(2); }
        OPPONENT(SPECIES_WOBBUFFET) { Speed(1); }
    } WHEN {
        TURN { MOVE(player, MOVE_QUICK_ATTACK); MOVE(opponent, MOVE_QUICK_ATTACK); }
    } SCENE {
        ANIMATION(ANIM_TYPE_MOVE, MOVE_QUICK_ATTACK, player);
        ANIMATION(ANIM_TYPE_MOVE, MOVE_QUICK_ATTACK, opponent);
    }
}

SINGLE_BATTLE_TEST("Turn order is determined randomly if priority and Speed tie")
{
    KNOWN_FAILING; // The algorithm is significantly biased.
    PASSES_RANDOMLY(1, 2);
    GIVEN {
        PLAYER(SPECIES_WOBBUFFET) { Speed(1); }
        OPPONENT(SPECIES_WOBBUFFET) { Speed(1); }
    } WHEN {
        TURN { MOVE(player, MOVE_QUICK_ATTACK); MOVE(opponent, MOVE_QUICK_ATTACK); }
    } SCENE {
        ANIMATION(ANIM_TYPE_MOVE, MOVE_QUICK_ATTACK, player);
        ANIMATION(ANIM_TYPE_MOVE, MOVE_QUICK_ATTACK, opponent);
    }
}

SINGLE_BATTLE_TEST("Critical hits occur at a 1/24 rate")
{
    ASSUME(B_CRIT_CHANCE >= GEN_7);
    PASSES_RANDOMLY(1, 24, RNG_CRITICAL_HIT);
    GIVEN {
        PLAYER(SPECIES_WOBBUFFET);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(player, MOVE_SCRATCH); }
    } SCENE {
        MESSAGE("A critical hit!");
    }
}

SINGLE_BATTLE_TEST("Slash's critical hits occur at a 1/8 rate")
{
    ASSUME(B_CRIT_CHANCE >= GEN_7);
    ASSUME(gBattleMoves[MOVE_SLASH].highCritRatio);
    PASSES_RANDOMLY(1, 8, RNG_CRITICAL_HIT);
    GIVEN {
        PLAYER(SPECIES_WOBBUFFET);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(player, MOVE_SLASH); }
    } SCENE {
        MESSAGE("A critical hit!");
    }
}

SINGLE_BATTLE_TEST("Critical hits deal 50% more damage", s16 damage)
{
    bool32 criticalHit;
    PARAMETRIZE { criticalHit = FALSE; }
    PARAMETRIZE { criticalHit = TRUE; }
    GIVEN {
        ASSUME(B_CRIT_MULTIPLIER >= GEN_6);
        PLAYER(SPECIES_WOBBUFFET);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(player, MOVE_SCRATCH, criticalHit: criticalHit); }
    } SCENE {
        HP_BAR(opponent, captureDamage: &results[i].damage);
    } FINALLY {
        EXPECT_MUL_EQ(results[0].damage, Q_4_12(1.5), results[1].damage);
    }
}

SINGLE_BATTLE_TEST("Critical hits do not ignore positive stat stages", s16 damage)
{
    u32 move;
    PARAMETRIZE { move = MOVE_CELEBRATE; }
    PARAMETRIZE { move = MOVE_HOWL; }
    PARAMETRIZE { move = MOVE_TAIL_WHIP; }
    GIVEN {
        ASSUME(gBattleMoves[MOVE_SCRATCH].split == SPLIT_PHYSICAL);
        PLAYER(SPECIES_WOBBUFFET);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(player, move); }
        TURN { MOVE(player, MOVE_SCRATCH, criticalHit: TRUE); }
    } SCENE {
        HP_BAR(opponent, captureDamage: &results[i].damage);
    } THEN {
        if (i > 0)
            EXPECT_LT(results[0].damage, results[i].damage);
    }
}

SINGLE_BATTLE_TEST("Critical hits ignore negative stat stages", s16 damage)
{
    u32 move;
    PARAMETRIZE { move = MOVE_CELEBRATE; }
    PARAMETRIZE { move = MOVE_HARDEN; }
    PARAMETRIZE { move = MOVE_GROWL; }
    GIVEN {
        ASSUME(gBattleMoves[MOVE_SCRATCH].split == SPLIT_PHYSICAL);
        PLAYER(SPECIES_WOBBUFFET);
        OPPONENT(SPECIES_WOBBUFFET);
    } WHEN {
        TURN { MOVE(opponent, move); }
        TURN { MOVE(player, MOVE_SCRATCH, criticalHit: TRUE); }
    } SCENE {
        HP_BAR(opponent, captureDamage: &results[i].damage);
    } THEN {
        if (i > 0)
            EXPECT_EQ(results[0].damage, results[i].damage);
    }
}