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MinaPecheuxMinaPecheux
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feat(core): add tutorial interlude 4 code
1 parent 2db4fe3 commit 103a3f8

7 files changed

Lines changed: 147 additions & 117 deletions

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‎Assets/Resources/Shaders/Healthbar.shader‎

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Shader "Custom/Healthbar"
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{
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Properties
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{
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_Health ("Health", Range(0, 1)) = 1.0
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_LowHealthColor ("Low Health Color", Color) = (1, 0, 0, 1)
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_HighHealthColor ("High Health Color", Color) = (0, 1, 0, 1)
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_LowHealthThreshold ("Low Health Threshold", Range(0, 1)) = 0.2
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_HighHealthThreshold ("High Health Threshold", Range(0, 1)) = 0.8
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[NoScaleOffset] _MainTex ("Texture", 2D) = "white" {}
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[MaterialToggle] _PulseIfLow ("Pulse If Low", Float) = 1.0
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_Ratio ("Ratio", Float) = 8.0
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_BorderColor("Border Color", Color) = (0, 0, 0, 1)
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_BorderThickness ("Border Thickness", Range(0, 0.5)) = 0.2
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_Width ("Width", Float) = 5.0
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_Height ("Height", Float) = 0.5
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}
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SubShader
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{
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Tags {
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"RenderType" = "Opaque"
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"DisableBatching" = "True" // to avoid flickering when rendering multiple
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}
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Pass
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{
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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struct MeshData
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{
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct Interpolators
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{
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float4 vertex : SV_POSITION;
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float2 uv : TEXCOORD0;
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};
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float _Health;
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float4 _LowHealthColor;
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float4 _HighHealthColor;
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float _LowHealthThreshold;
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float _HighHealthThreshold;
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sampler2D _MainTex;
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float _PulseIfLow;
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float _Ratio;
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float4 _BorderColor;
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float _BorderThickness;
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float _Width;
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float _Height;
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Interpolators vert (MeshData v)
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{
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Interpolators o;
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o.vertex = mul(UNITY_MATRIX_P,
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mul(UNITY_MATRIX_MV, float4(0.0, 0.0, 0.0, 1.0))
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+ float4(v.vertex.x, v.vertex.y, 0.0, 0.0)
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* float4(_Width, _Height, 1.0, 1.0));
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o.uv = v.uv;
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return o;
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}
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float InverseLerp( float a, float b, float v )
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{
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return ( v - a ) / ( b - a );
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}
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float4 frag (Interpolators i) : SV_Target
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{
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float2 coords = i.uv;
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coords.x *= _Ratio;
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float2 pointOnLineSegment = float2( clamp( coords.x, 0.5, _Ratio - 0.5 ), 0.5 );
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float sdf = distance( pointOnLineSegment, coords ) * 2 - 1;
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clip( -sdf );
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float borderSdf = sdf + _BorderThickness;
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float pd = fwidth(borderSdf); // screen space partial derivative of borderSdf
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float borderMask = 1 - saturate( borderSdf / pd );
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float fillMask = i.uv.x < _Health;
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float3 texCol = tex2D( _MainTex, float2( _Health, i.uv.y ) );
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float tFillColor = saturate( InverseLerp ( _LowHealthThreshold, _HighHealthThreshold, _Health ) );
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float3 col = lerp( _LowHealthColor, _HighHealthColor, tFillColor );
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col *= texCol;
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if ( ( _PulseIfLow == 1 ) && ( _Health <= 0.2 ) ) {
95+
float flash = cos( _Time.y * 4 ) * 0.3;
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col = saturate( col * ( 1 + flash ) );
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}
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return float4( lerp( _BorderColor, col * fillMask, borderMask ), 1 );
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}
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ENDCG
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}
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}
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}

‎Assets/Resources/Shaders/Healthbar.shader.meta‎

Lines changed: 10 additions & 0 deletions
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‎Assets/Scripts/Tools/Utils.cs‎

Lines changed: 2 additions & 36 deletions
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@@ -1,5 +1,5 @@
1-
using System.Collections.Generic;
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using System.Text.RegularExpressions;
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using System.Collections.Generic;
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using System.Text.RegularExpressions;
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using UnityEngine;
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public static class Utils
@@ -79,40 +79,6 @@ public static Bounds GetViewportBounds(Camera camera, Vector3 screenPosition1, V
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return bounds;
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}
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82-
public static Rect GetBoundingBoxOnScreen(Bounds bounds, Camera camera)
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{
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// get the 8 vertices of the bounding box
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Vector3 center = bounds.center;
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Vector3 size = bounds.size;
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Vector3[] vertices = new Vector3[] {
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center + Vector3.right * size.x / 2f + Vector3.up * size.y / 2f + Vector3.forward * size.z / 2f,
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center + Vector3.right * size.x / 2f + Vector3.up * size.y / 2f - Vector3.forward * size.z / 2f,
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center + Vector3.right * size.x / 2f - Vector3.up * size.y / 2f + Vector3.forward * size.z / 2f,
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center + Vector3.right * size.x / 2f - Vector3.up * size.y / 2f - Vector3.forward * size.z / 2f,
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center - Vector3.right * size.x / 2f + Vector3.up * size.y / 2f + Vector3.forward * size.z / 2f,
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center - Vector3.right * size.x / 2f + Vector3.up * size.y / 2f - Vector3.forward * size.z / 2f,
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center - Vector3.right * size.x / 2f - Vector3.up * size.y / 2f + Vector3.forward * size.z / 2f,
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center - Vector3.right * size.x / 2f - Vector3.up * size.y / 2f - Vector3.forward * size.z / 2f,
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};
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Rect retVal = Rect.MinMaxRect(float.MaxValue, float.MaxValue, float.MinValue, float.MinValue);
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// iterate through the vertices to get the equivalent screen projection
100-
for (int i = 0; i < vertices.Length; i++)
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{
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Vector3 v = camera.WorldToScreenPoint(vertices[i]) / GameManager.instance.canvasScaleFactor;
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if (v.x < retVal.xMin)
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retVal.xMin = v.x;
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if (v.y < retVal.yMin)
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retVal.yMin = v.y;
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if (v.x > retVal.xMax)
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retVal.xMax = v.x;
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if (v.y > retVal.yMax)
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retVal.yMax = v.y;
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}
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return retVal;
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}
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public static Vector3 MiddleOfScreenPointToWorld()
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{ return MiddleOfScreenPointToWorld(MainCamera); }
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public static Vector3 MiddleOfScreenPointToWorld(Camera cam)

‎Assets/Scripts/UI/Healthbar.cs‎

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This file was deleted.

‎Assets/Scripts/UI/Healthbar.cs.meta‎

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This file was deleted.

‎Assets/Scripts/Units/Buildings/BuildingManager.cs‎

Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -107,14 +107,16 @@ protected override bool IsMovable()
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protected override void UpdateHealthbar()
109109
{
110-
if (!healthbar) return;
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Transform fill = healthbar.transform.Find("Fill");
110+
if (!_healthbarRenderer) return;
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113112
// if in construction: show current construction HP
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// else, show current health
115114
int hp = (IsActive() && !_building.IsAlive)
116115
? _building.ConstructionHP
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: Unit.HP;
118-
fill.GetComponent<UnityEngine.UI.Image>().fillAmount = hp / (float)Unit.MaxHP;
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118+
_healthbarRenderer.GetPropertyBlock(_MaterialPropertyBlock);
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_MaterialPropertyBlock.SetFloat("_Health", hp / (float)Unit.MaxHP);
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_healthbarRenderer.SetPropertyBlock(_MaterialPropertyBlock);
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}
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}

‎Assets/Scripts/Units/UnitManager.cs‎

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@@ -5,6 +5,17 @@
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[RequireComponent(typeof(BoxCollider))]
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public class UnitManager : MonoBehaviour
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{
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protected static MaterialPropertyBlock _materialPropertyBlock;
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protected static MaterialPropertyBlock _MaterialPropertyBlock
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{
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get
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{
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if (_materialPropertyBlock == null)
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_materialPropertyBlock = new MaterialPropertyBlock();
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return _materialPropertyBlock;
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}
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}
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public GameObject selectionCircle;
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public GameObject fov;
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public Renderer meshRenderer;
@@ -22,8 +33,8 @@ public class UnitManager : MonoBehaviour
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public int SelectIndex { get => _selectIndex; }
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private bool _hovered = false;
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protected GameObject healthbar;
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private Transform _canvas;
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public GameObject healthbar;
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protected Renderer _healthbarRenderer;
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private GameObject _levelUpVFX;
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private Material _levelUpVFXMaterial;
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private Coroutine _levelUpVFXCoroutine = null;
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private void Awake()
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{
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_canvas = GameObject.Find("Canvas").transform;
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_meshSize = meshRenderer.GetComponent<Renderer>().bounds.size / 2;
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if (healthbar)
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{
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healthbar.SetActive(false);
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_healthbarRenderer = healthbar.GetComponent<Renderer>();
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}
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}
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private void OnMouseEnter()
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138154
EventManager.TriggerEvent("DeselectedUnit", Unit);
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selectionCircle.SetActive(false);
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Destroy(healthbar);
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healthbar = null;
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healthbar.SetActive(false);
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_selected = false;
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_selectIndex = -1;
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}
@@ -169,18 +184,10 @@ private void _SelectUtil()
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Globals.SELECTED_UNITS.Add(this);
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EventManager.TriggerEvent("SelectedUnit", Unit);
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selectionCircle.SetActive(true);
172-
if (healthbar == null)
187+
if (healthbar)
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{
174-
healthbar = GameObject.Instantiate(Resources.Load("Prefabs/UI/Healthbar")) as GameObject;
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healthbar.transform.SetParent(_canvas);
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healthbar.SetActive(true);
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UpdateHealthbar();
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Healthbar h = healthbar.GetComponent<Healthbar>();
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Rect boundingBox = Utils.GetBoundingBoxOnScreen(
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meshRenderer.bounds,
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Camera.main
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);
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h.Initialize(transform, IsMovable(), boundingBox.height * 0.5f);
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h.SetPosition();
184191
}
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186193
// play sound
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200207
protected virtual void UpdateHealthbar()
201208
{
202-
if (!healthbar) return;
203-
Transform fill = healthbar.transform.Find("Fill");
204-
fill.GetComponent<UnityEngine.UI.Image>().fillAmount = Unit.HP / (float)Unit.MaxHP;
209+
if (!_healthbarRenderer) return;
210+
_healthbarRenderer.GetPropertyBlock(_MaterialPropertyBlock);
211+
_MaterialPropertyBlock.SetFloat("_Health", Unit.HP / (float)Unit.MaxHP);
212+
_healthbarRenderer.SetPropertyBlock(_MaterialPropertyBlock);
205213
}
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207215
public void LevelUp()

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