here you go

src/pod.c

@@ -0,0 +1,125 @@
+#include <genesis.h>
+#include <resources.h>
+
+#include "main.h"
+#include "enemies.h"
+#include "pod.h"
+#include "explosion.h"
+#include "boss.h"
+
+
+// spawn
+
+void spawnPod(struct podSpawner spawner){
+	s16 i = -1;
+	for(s16 h = 0; h < POD_COUNT; h++) if(!pods[h].active && i == -1) i = h;
+	if(i > -1){
+		pods[i].active = TRUE;
+		pods[i].pos.x = spawner.x;
+		pods[i].pos.y = spawner.y;
+		pods[i].clock = 0;
+		pods[i].random = spawner.random;
+		pods[i].image = SPR_addSprite(&imgSpider, fix16ToInt(POD_DUMP_X), fix16ToInt(POD_DUMP_Y), TILE_ATTR(PAL1, 0, FALSE, FALSE));
+	}
+}
+
+
+// shoot
+
+void podPatternOne(s16 i){
+	struct bulletSpawner bSpawn = {
+		.x = pods[i].pos.x,
+		.y = pods[i].pos.y,
+		.type = 4,
+		.angle = random() % 1024,
+		.speed = FIX16(podBulletSpeed)
+	};
+	for(s8 b = 0; b < 3; b++){
+		spawnEnemyBullet(bSpawn, eUpdate);
+		bSpawn.angle += 341;
+	}
+	XGM_startPlayPCM(SFX_BULLET_1, 0, SOUND_PCM_CH3);
+}
+
+void podPatternTwo(s8 i, s8 mod, s16 aMod){
+	struct bulletSpawner bSpawn = {
+		.x = pods[i].pos.x,
+		.y = pods[i].pos.y,
+		.type = 4,
+		.angle = random() % 1024,
+		.speed = FIX16(podBulletSpeed)
+	};
+	for(s8 b = 0; b < 3 + mod; b++){
+		spawnEnemyBullet(bSpawn, eUpdate);
+		bSpawn.angle += aMod;
+	}
+	bSpawn.speed = FIX16(podBulletSpeed + 1);
+	bSpawn.type = 3;
+	bSpawn.angle += aMod / 2;
+	for(s8 b = 0; b < 3 + mod; b++){
+		spawnEnemyBullet(bSpawn, eUpdate);
+		bSpawn.angle += aMod;
+	}
+}
+
+void shootPod(s16 i){
+	if(currentZone == 1) podPatternOne(i);
+	else if(currentZone < 5) podPatternTwo(i, 0, 342);
+	else if(currentZone < 10) podPatternTwo(i, 1, 256);
+	else podPatternTwo(i, 2, 204);
+}
+
+
+// die
+
+void killPod(s16 i){
+	pods[i].active = FALSE;
+	pods[i].pos.x = POD_DUMP_X;
+	pods[i].pos.y = POD_DUMP_Y;
+	SPR_releaseSprite(pods[i].image);
+}
+
+
+// loop
+
+void loadPod(){
+	if(currentZone % 5 == 1 && currentZone > 1) podBulletSpeed++;
+	currentPodCount = 0;
+	if(currentZone >= 3) currentPodCount = 1;
+	if(currentZone >= 6) currentPodCount = 2;
+	if(currentZone >= 11) currentPodCount = 3;
+	if(currentZone >= 16) currentPodCount = 4;
+	if(currentPodCount > 0){
+		for(s16 i = 0; i < POD_COUNT; i++){
+			pods[i].pos.x = POD_DUMP_X;
+			pods[i].pos.y = POD_DUMP_Y;
+			pods[i].random = FALSE;
+			pods[i].clock = 0;
+		}
+	}
+}
+
+void resetPod(){
+	for(s16 i = 0; i < POD_COUNT; i++){
+		pods[i].active = FALSE;
+		pods[i].pos.x = POD_DUMP_X;
+		pods[i].pos.y = POD_DUMP_Y;
+		SPR_releaseSprite(pods[i].image);
+	}
+}
+
+void updatePod(){
+	for(s16 i = 0; i < POD_COUNT; i++) if(pods[i].active) {
+		if(pods[i].clock >= POD_TIME_LIMIT){
+			if(!gameOver) shootPod(i);
+			killPod(i);
+			spawnExplosion(fix16ToInt(pods[i].pos.x), fix16ToInt(pods[i].pos.y), FALSE);
+			XGM_startPlayPCM(SFX_BULLET_1, 1, SOUND_PCM_CH3);
+		} else {
+			if(pods[i].clock % 60 == 0 && pods[i].clock > 0) SPR_setAnimAndFrame(pods[i].image, pods[i].clock / 60, pods[i].clock % 40 == 0 ? 0 : 1);
+			SPR_setPosition(pods[i].image, fix16ToInt(pods[i].pos.x) - 8, fix16ToInt(pods[i].pos.y) - 8);
+		}
+		if(zoneOver) killPod(i);
+		pods[i].clock++;
+	}
+}