Added linear movement system

Assets/Scenes/SampleScene.unity

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Assets/script/Health.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Health : MonoBehaviour
+{
+    public int hp;
+    // Update is called once per frame
+    void Update()
+    {
+        if (hp <= 0) Destroy(gameObject);
+    }
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Assets/script/movement/Bullet.cs

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-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-
-public class Bullet : MonoBehaviour
-{
-    Rigidbody2D rb;
-    public float damage;
-    public float time = 2f;
-
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-}

Assets/script/movement/Bullet1.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Bullet1 : Mover {
+    public float lifespan = 1;
+    public int damage = 1;
+    public override float MoveX(float a) { return a; }
+    public override float MoveY(float a) { return 0f; }
+    private void OnCollisionEnter2D(Collision2D c) {
+        var hh = gameObject.GetComponent<Health>();
+        if(hh) hh.hp -= damage;
+        Destroy(gameObject);
+    }
+    void OnEnable() => Destroy(gameObject, lifespan);
+}

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Assets/script/movement/Bullet2.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Bullet2 : Mover {
+    public float lifespan = 1;
+    public int damage = 1;
+    public override float MoveX(float a) { return a; }
+    public override float MoveY(float a) { return a; }
+    private void OnCollisionEnter2D(Collision2D c) {
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Assets/script/movement/Bullet3.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Bullet3 : Mover {
+    public float lifespan = 1;
+    public int damage = 1;
+    public override float MoveX(float a) { return a; }
+    public override float MoveY(float a) { return -a; }
+    private void OnCollisionEnter2D(Collision2D c) {
+        var hh = gameObject.GetComponent<Health>();
+        if(hh) hh.hp -= damage;
+        Destroy(gameObject);
+    }
+    void OnEnable() => Destroy(gameObject, lifespan);
+}

Assets/script/movement/Bullet3.cs.meta

@@ -0,0 +1,11 @@
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+guid: c9feaf970a356774b86fa4c0dbadc15f
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Assets/script/movement/FirePoint.cs

@@ -0,0 +1,10 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class FirePoint : MonoBehaviour {
+    public GameObject b;
+    void Fire() {
+        Instantiate(b);
+    }
+}

Assets/script/movement/FirePoint.cs.meta

@@ -0,0 +1,11 @@
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+guid: 8e01463dd85b2b64c8f7e54429a55e0d
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Assets/script/movement/Mover.cs

@@ -0,0 +1,14 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public abstract class Mover : MonoBehaviour {
+    public float acc;
+    // Update is called once per frame
+    void Update() {
+        acc += Time.deltaTime;
+        gameObject.transform.position = new Vector3(this.MoveX(acc), this.MoveY(acc), 0);
+    }
+    public abstract float MoveX(float a);
+    public abstract float MoveY(float a);
+}

Assets/script/movement/Mover.cs.meta

@@ -0,0 +1,11 @@
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+guid: 2310086e249e48a4dbd59fc708b4cd2f
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Assets/script/movement/PlayerController.cs

@@ -5,7 +5,8 @@ using UnityEngine;
 
 
 public class PlayerController : MonoBehaviour {
-    public float speed;
+    Vector3 direction;
+    public float speed = 0.5f;
 #if tmp
     public GameObject bullet;
 #endif
@@ -17,7 +18,7 @@ public class PlayerController : MonoBehaviour {
 
     // Update is called once per frame
     void Update() {
-        gameObject.transform.position += new Vector3(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"), 0);
-
+        gameObject.transform.position += new Vector3(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"), 0)*speed;
+        if (Input.GetButton("Fire1")) gameObject.BroadcastMessage("Fire");
     }
 }

Assets/sound/pulse-alarm.wav.meta

@@ -0,0 +1,22 @@
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+guid: 5a4ca31e6e952b544be9daf15b8bf649
+AudioImporter:
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+  serializedVersion: 6
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+    sampleRateOverride: 44100
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+  preloadAudioData: 1
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Assets/sound/sfx.meta

@@ -1,5 +1,5 @@
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ProjectSettings/InputManager.asset

@@ -42,7 +42,7 @@ InputManager:
     descriptiveName: 
     descriptiveNegativeName: 
     negativeButton: 
-    positiveButton: left ctrl
+    positiveButton: left shift
     altNegativeButton: 
     altPositiveButton: mouse 0
     gravity: 1000

ProjectSettings/ProjectSettings.asset

@@ -4,7 +4,7 @@
 PlayerSettings:
   m_ObjectHideFlags: 0
   serializedVersion: 18
-  productGUID: 6cad107df9f67134b9847c69f3e29f73
+  productGUID: 2e3cfe85a15a27644a40759a2d988d76
   AndroidProfiler: 0
   AndroidFilterTouchesWhenObscured: 0
   AndroidEnableSustainedPerformanceMode: 0
@@ -13,7 +13,7 @@ PlayerSettings:
   useOnDemandResources: 0
   accelerometerFrequency: 60
   companyName: DefaultCompany
-  productName: technix-e
+  productName: technix
   defaultCursor: {fileID: 0}
   cursorHotspot: {x: 0, y: 0}
   m_SplashScreenBackgroundColor: {r: 0.13725491, g: 0.12156863, b: 0.1254902, a: 1}
@@ -593,6 +593,7 @@ PlayerSettings:
       daydreamIconForeground: {fileID: 0}
       daydreamIconBackground: {fileID: 0}
   cloudServicesEnabled:
+    Collab: 1
     UNet: 1
   luminIcon:
     m_Name: 
@@ -613,11 +614,11 @@ PlayerSettings:
   facebookXfbml: 0
   facebookFrictionlessRequests: 1
   apiCompatibilityLevel: 6
-  cloudProjectId: 
+  cloudProjectId: 0ca7fcaa-e8e4-4145-a938-c05989a2c43d
   framebufferDepthMemorylessMode: 0
-  projectName: 
-  organizationId: 
+  projectName: technix
+  organizationId: as8756m
   cloudEnabled: 0
-  enableNativePlatformBackendsForNewInputSystem: 0
+  enableNativePlatformBackendsForNewInputSystem: 1
   disableOldInputManagerSupport: 0
   legacyClampBlendShapeWeights: 1

ProjectSettings/UnityConnectSettings.asset

@@ -12,14 +12,14 @@ UnityConnectSettings:
   m_TestInitMode: 0
   CrashReportingSettings:
     m_EventUrl: https://perf-events.cloud.unity3d.com
-    m_Enabled: 0
+    m_Enabled: 1
     m_LogBufferSize: 10
     m_CaptureEditorExceptions: 1
   UnityPurchasingSettings:
     m_Enabled: 0
     m_TestMode: 0
   UnityAnalyticsSettings:
-    m_Enabled: 0
+    m_Enabled: 1
     m_TestMode: 0
     m_InitializeOnStartup: 1
   UnityAdsSettings: