128 lines
4.4 KiB
C
128 lines
4.4 KiB
C
/**
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* Behavior for bhvHiddenBlueCoin and bhvBlueCoinSwitch.
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* bhvHiddenBlueCoin are the stationary blue coins that appear when
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* you press a blue coin switch (a.k.a. bhvBlueCoinSwitch).
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*/
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/**
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* Update function for bhvHiddenBlueCoin.
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*/
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void bhv_hidden_blue_coin_loop(void) {
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struct Object *blueCoinSwitch;
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switch (o->oAction) {
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case HIDDEN_BLUE_COIN_ACT_INACTIVE:
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// Become invisible and intangible
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cur_obj_disable_rendering();
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cur_obj_become_intangible();
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// Set action to HIDDEN_BLUE_COIN_ACT_WAITING after the blue coin switch is found.
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o->oHiddenBlueCoinSwitch = cur_obj_nearest_object_with_behavior(bhvBlueCoinSwitch);
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if (o->oHiddenBlueCoinSwitch != NULL) {
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o->oAction++;
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}
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break;
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case HIDDEN_BLUE_COIN_ACT_WAITING:
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// Wait until the blue coin switch starts ticking to activate.
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blueCoinSwitch = o->oHiddenBlueCoinSwitch;
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if (blueCoinSwitch->oAction == BLUE_COIN_SWITCH_ACT_TICKING) {
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o->oAction++; // Set to HIDDEN_BLUE_COIN_ACT_ACTIVE
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}
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break;
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case HIDDEN_BLUE_COIN_ACT_ACTIVE:
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// Become tangible
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cur_obj_enable_rendering();
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cur_obj_become_tangible();
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// Delete the coin once collected
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if (o->oInteractStatus & INT_STATUS_INTERACTED) {
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spawn_object(o, MODEL_SPARKLES, bhvGoldenCoinSparkles);
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obj_mark_for_deletion(o);
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}
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// After 200 frames of waiting and 20 2-frame blinks (for 240 frames total),
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// delete the object.
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if (cur_obj_wait_then_blink(200, 20)) {
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obj_mark_for_deletion(o);
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}
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break;
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}
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o->oInteractStatus = 0;
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}
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/**
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* Update function for bhvBlueCoinSwitch.
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*/
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void bhv_blue_coin_switch_loop(void) {
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// The switch's model is 1/3 size.
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cur_obj_scale(3.0f);
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switch (o->oAction) {
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case BLUE_COIN_SWITCH_ACT_IDLE:
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// If Mario is on the switch and has ground-pounded,
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// recede and get ready to start ticking.
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if (gMarioObject->platform == o) {
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if (gMarioStates->action == ACT_GROUND_POUND_LAND) {
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// Set to BLUE_COIN_SWITCH_ACT_RECEDING
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o->oAction++;
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// Recede at a rate of 20 units/frame.
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o->oVelY = -20.0f;
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// Set gravity to 0 so it doesn't accelerate when receding.
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o->oGravity = 0.0f;
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cur_obj_play_sound_2(SOUND_GENERAL_SWITCH_DOOR_OPEN);
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}
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}
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// Have collision
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load_object_collision_model();
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break;
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case BLUE_COIN_SWITCH_ACT_RECEDING:
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// Recede for 6 frames before going invisible and ticking.
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// This is probably an off-by-one error, since the switch is 100 units tall
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// and recedes at 20 units/frame, which means it will fully recede after 5 frames.
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if (o->oTimer > 5) {
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cur_obj_hide();
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// Set to BLUE_COIN_SWITCH_ACT_TICKING
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o->oAction++;
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// ???
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o->oPosY = gMarioObject->oPosY - 40.0f;
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// Spawn particles. There's a function that calls this same function
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// with the same arguments, spawn_mist_particles, why didn't they just call that?
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spawn_mist_particles_variable(0, 0, 46.0f);
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} else {
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// Have collision while receding
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load_object_collision_model();
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// Recede
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cur_obj_move_using_fvel_and_gravity();
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}
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break;
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case BLUE_COIN_SWITCH_ACT_TICKING:
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// Tick faster when the blue coins start blinking
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if (o->oTimer < 200) {
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play_sound(SOUND_GENERAL2_SWITCH_TICK_FAST, gDefaultSoundArgs);
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} else {
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play_sound(SOUND_GENERAL2_SWITCH_TICK_SLOW, gDefaultSoundArgs);
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}
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// Delete the switch (which stops the sound) after the last coin is collected,
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// or after the coins unload after the 240-frame timer expires.
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if (cur_obj_nearest_object_with_behavior(bhvHiddenBlueCoin) == NULL || o->oTimer > 240) {
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obj_mark_for_deletion(o);
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}
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break;
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}
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}
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