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Commit 0323323

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HabradorHabrador
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Added a grid to spatial partition pattern
1 parent 0012553 commit 0323323
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‎Assets/Patterns/19. Spatial Partition/Grid/Scripts/GameController.cs

Copy file name to clipboardExpand all lines: Assets/Patterns/19. Spatial Partition/Grid/Scripts/GameController.cs
+79-12Lines changed: 79 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
1-
using System.Collections;
21
using System.Collections.Generic;
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using UnityEngine;
43

@@ -9,37 +8,35 @@ namespace SpatialPartition.Grid
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public class GameController : MonoBehaviour
109
{
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//Drags
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public GameObject battlefieldObj;
13-
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public Unit unitPrefab;
1512

1613
public Transform unitParentTrans;
1714

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//Private
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private Grid grid;
2017

21-
//The number of units we start with
18+
//The number of units moving on the map
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private const int NUMBER_OF_UNITS = 100;
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//To keep track of all units so we can move them
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private HashSet<Unit> allUnits = new HashSet<Unit>();
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24+
//Display the grid with lines
25+
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//Grid material
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private Material gridMaterial;
28+
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//Grid mesh
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private Mesh gridMesh;
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void Start()
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{
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grid = new Grid();
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33-
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//Make the battlefield the same size as the grid
3538
float battlefieldWidth = Grid.NUM_CELLS * Grid.CELL_SIZE;
3639

37-
battlefieldObj.transform.localScale = new Vector3(battlefieldWidth, 1f, battlefieldWidth);
38-
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//The grid starts at origo, so we need to change position as well
40-
battlefieldObj.transform.position = new Vector3(battlefieldWidth * 0.5f, 0f, battlefieldWidth * 0.5f);
41-
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//Add units within the grid at random positions
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for (int i = 0; i < NUMBER_OF_UNITS; i++)
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{
@@ -70,5 +67,75 @@ void Update()
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//Units attack each other
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grid.HandleMelee();
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}
70+
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private void LateUpdate()
74+
{
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//Display the grid with lines
76+
if (gridMaterial == null)
77+
{
78+
gridMaterial = new Material(Shader.Find("Unlit/Color"));
79+
80+
gridMaterial.color = Color.black;
81+
}
82+
83+
if (grid == null)
84+
{
85+
return;
86+
}
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if (gridMesh == null)
89+
{
90+
gridMesh = InitGridMesh();
91+
}
92+
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//Display the mesh
94+
Graphics.DrawMesh(gridMesh, Vector3.zero, Quaternion.identity, gridMaterial, 0, Camera.main, 0);
95+
}
96+
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private Mesh InitGridMesh()
100+
{
101+
//Generate the vertices
102+
List<Vector3> lineVertices = new ();
103+
104+
float battlefieldWidth = Grid.NUM_CELLS * Grid.CELL_SIZE;
105+
106+
Vector3 linePosX = Vector3.zero;
107+
Vector3 linePosY = Vector3.zero;
108+
109+
for (int x = 0; x <= Grid.NUM_CELLS; x++)
110+
{
111+
lineVertices.Add(linePosX);
112+
lineVertices.Add(linePosX + Vector3.right * battlefieldWidth);
113+
114+
lineVertices.Add(linePosY);
115+
lineVertices.Add(linePosY + Vector3.forward * battlefieldWidth);
116+
117+
linePosX += Vector3.forward * Grid.CELL_SIZE;
118+
linePosY += Vector3.right * Grid.CELL_SIZE;
119+
}
120+
121+
122+
//Generate the indices
123+
List<int> indices = new ();
124+
125+
for (int i = 0; i < lineVertices.Count; i++)
126+
{
127+
indices.Add(i);
128+
}
129+
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131+
//Generate the mesh
132+
Mesh gridMesh = new ();
133+
134+
gridMesh.SetVertices(lineVertices);
135+
gridMesh.SetIndices(indices, MeshTopology.Lines, 0);
136+
137+
138+
return gridMesh;
139+
}
73140
}
74141
}

‎Assets/Patterns/19. Spatial Partition/Grid/grid spatial partition.unity

Copy file name to clipboardExpand all lines: Assets/Patterns/19. Spatial Partition/Grid/grid spatial partition.unity
+50-87Lines changed: 50 additions & 87 deletions
Original file line numberDiff line numberDiff line change
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@@ -326,9 +287,10 @@ Camera:
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