128 lines
4.6 KiB
C
128 lines
4.6 KiB
C
/**
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* @file blue_fish.inc.c
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* Implements behaviour and spawning for bhvBlueFish located in the castle aquarium outside of SA.
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*/
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/**
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* Determines fish movement.
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*/
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void bhv_blue_fish_movement_loop(void) {
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f32 randomSwitch;
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switch (o->oAction) {
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// Initial dive phase after spawning
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case BLUE_FISH_ACT_DIVE:
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cur_obj_init_animation_with_accel_and_sound(0, 1.0f);
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// Assigns random values to variables that help determine natural motion.
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if (o->oTimer == 0) {
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o->oBlueFishRandomAngle = random_sign() << 11;
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o->oBlueFishRandomVel = random_float() * 2;
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o->oBlueFishRandomTime = (s32)(random_float() * 30) & 0xFE;
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// Adjusts pitch velocity or sets to zero dependant on outcome of randomSwitch.
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randomSwitch = random_float() * 5;
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if (randomSwitch < 2.0f) {
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o->oAngleVelPitch = random_f32_around_zero(128);
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} else {
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o->oAngleVelPitch = 0;
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}
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}
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// Set forward velocity and progress oAction to BLUE_FISH_ACT_TURN.
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o->oForwardVel = o->oBlueFishRandomVel + 3.0f;
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if (o->oTimer >= o->oBlueFishRandomTime + 60) {
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o->oAction++;
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}
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// Set pitch velocity
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if (o->oTimer < (o->oBlueFishRandomTime + 60) / 2) {
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o->oFaceAnglePitch += o->oAngleVelPitch;
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} else {
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o->oFaceAnglePitch -= o->oAngleVelPitch;
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}
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// Calculate new Y velocity
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o->oVelY = -sins(o->oFaceAnglePitch) * o->oForwardVel;
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break;
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// Animates and adjusts fish yaw angle.
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case BLUE_FISH_ACT_TURN:
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cur_obj_init_animation_with_accel_and_sound(0, 2.0f);
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o->oMoveAngleYaw = (s32)(o->oBlueFishRandomAngle + o->oMoveAngleYaw);
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if (o->oTimer == 15) {
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o->oAction++;
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}
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break;
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// Animates and adjusts pitch to an upward direction.
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case BLUE_FISH_ACT_ASCEND:
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cur_obj_init_animation_with_accel_and_sound(0, 1.0f);
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// Progresses oAction to BLUE_FISH_ACT_TURN_BACK after elapsed time.
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if (o->oTimer >= o->oBlueFishRandomTime + 60) {
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o->oAction++;
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}
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// Adjusts pitch angle. Direction relies on time not passed.
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if (o->oTimer < (o->oBlueFishRandomTime + 60) / 2) {
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o->oFaceAnglePitch -= o->oAngleVelPitch;
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} else {
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o->oFaceAnglePitch += o->oAngleVelPitch;
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}
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break;
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// Animates and turns fish around
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case BLUE_FISH_ACT_TURN_BACK:
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cur_obj_init_animation_with_accel_and_sound(0, 2.0f);
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o->oMoveAngleYaw = (s32)(o->oBlueFishRandomAngle + o->oMoveAngleYaw);
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// Sets the fish back to the BLUE_FISH_ACT_DIVE phase.
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if (o->oTimer == 15) {
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o->oAction = BLUE_FISH_ACT_DIVE;
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}
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break;
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}
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// Calculates Y velocity and calls physics engine.
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o->oVelY = -sins(o->oFaceAnglePitch) * o->oForwardVel;
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cur_obj_move_using_fvel_and_gravity();
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// Deletes object if the parent has oAction set to BLUE_FISH_ACT_DUPLICATE.
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if (o->parentObj->oAction == BLUE_FISH_ACT_DUPLICATE) {
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obj_mark_for_deletion(o);
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}
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}
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/**
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* Spawns fifteen fish if Mario resides in room fifteen or seven.
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* They move at random within 200.0f
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*/
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void bhv_tank_fish_group_loop(void) {
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struct Object *fish;
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s32 i;
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switch (o->oAction) {
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case BLUE_FISH_ACT_SPAWN:
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if (gMarioCurrentRoom == 15 || gMarioCurrentRoom == 7) {
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// spawns fifteen fish and moves them within 200.0f
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for (i = 0; i < 15; i++) {
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fish = spawn_object_relative(0, 300, 0, -200, o, MODEL_FISH, bhvBlueFish);
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obj_translate_xyz_random(fish, 200.0f);
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}
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// Proceed to BLUE_FISH_ACT_ROOM phase.
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o->oAction++;
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}
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break;
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// Sets next oAction phase if Mario is not in rooms fifteen and seven.
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case BLUE_FISH_ACT_ROOM:
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if (gMarioCurrentRoom != 15 && gMarioCurrentRoom != 7) {
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o->oAction++;
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}
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break;
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// Sets oAction to the BLUE_FISH_ACT_SPAWN phase.
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case BLUE_FISH_ACT_DUPLICATE:
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o->oAction = BLUE_FISH_ACT_SPAWN;
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break;
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}
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}
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