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-rw-r--r--Pathfinding Visualizer/Assets/Scripts/CellMesh.cs176
-rw-r--r--Pathfinding Visualizer/Assets/Scripts/CellMesh.cs.meta (renamed from Pathfinding Visualizer/Assets/Scripts/MeshTesting.cs.meta)0
-rw-r--r--Pathfinding Visualizer/Assets/Scripts/LogicGrid.cs18
-rw-r--r--Pathfinding Visualizer/Assets/Scripts/Main.cs6
-rw-r--r--Pathfinding Visualizer/Assets/Scripts/MeshTesting.cs80
5 files changed, 198 insertions, 82 deletions
diff --git a/Pathfinding Visualizer/Assets/Scripts/CellMesh.cs b/Pathfinding Visualizer/Assets/Scripts/CellMesh.cs
new file mode 100644
index 0000000..4e3840e
--- /dev/null
+++ b/Pathfinding Visualizer/Assets/Scripts/CellMesh.cs
@@ -0,0 +1,176 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class CellMesh : MonoBehaviour
+{
+
+ Material m_Material;
+
+ private LogicGrid grid;
+ private Mesh mesh;
+
+ private void Awake()
+ {
+ mesh = new Mesh();
+ GetComponent<MeshFilter>().mesh = mesh;
+ }
+
+ public void SetGrid(LogicGrid grid)
+ {
+ this.grid = grid;
+ UpdateCellVisual();
+ }
+
+ private void UpdateCellVisual()
+ {
+ CreateEmptyMeshArrays(grid.GetWidth() * grid.GetHeight(), out Vector3[] vertices, out Vector2[] uv, out int[] triangles);
+
+ for(int x = 0; x < grid.GetWidth(); x++)
+ for(int y = 0; y < grid.GetHeight(); y++)
+ {
+ int index = x * grid.GetHeight() + y;
+
+ Vector3 quadSize = new Vector3(1, 1) * grid.GetCellSize();
+
+ AddQuad(vertices, uv, triangles, index, grid.GetWorldPosition(x, y), quadSize, Vector2.zero);
+ }
+
+ mesh.vertices = vertices;
+ mesh.uv = uv;
+ mesh.triangles = triangles;
+ }
+
+ void Start()
+ {
+ /**
+ m_Material = GetComponent<Renderer>().material;
+
+ Debug.Log("Mesh Testing");
+
+ Mesh mesh = new Mesh();
+
+
+ // Build required data-structures for square mesh
+ Vector3[] vertices = new Vector3[4];
+ Vector2[] uv = new Vector2[4];
+ int[] triangles = new int[6];
+
+ // Set vertices of polygon (2 triangles -> 1 quad)
+ vertices[0] = new Vector3(0, 0);
+ vertices[1] = new Vector3(0, 10);
+ vertices[2] = new Vector3(10, 10);
+ vertices[3] = new Vector3(10, 0);
+
+ // UV index contains texture position that should match to vertex with same index
+ uv[0] = new Vector2(0, 0);
+ uv[1] = new Vector2(0, 1);
+ uv[2] = new Vector2(1, 1);
+ uv[3] = new Vector2(1, 0);
+
+
+ // Set order of indexes of vertices to draw polygon (v1 -> v2 -> v3 -> v1)
+ // Note: always set clockwise, otherwise mesh will be facing backwards
+ triangles[0] = 0;
+ triangles[1] = 1;
+ triangles[2] = 2;
+
+ triangles[3] = 0;
+ triangles[4] = 2;
+ triangles[5] = 3;
+
+ mesh.vertices = vertices;
+ mesh.uv = uv;
+ mesh.triangles = triangles;
+
+ GetComponent<MeshFilter>().mesh = mesh;
+ */
+ }
+
+
+
+ private void Update()
+ {
+ if(Input.GetKeyDown("1"))
+ {
+ Debug.Log("1");
+ m_Material.color = Color.white;
+ //m_Material.SetColor("_Color", Color.white);
+ }
+
+ if (Input.GetKeyDown("2"))
+ {
+ Debug.Log("2");
+ m_Material.color = Color.black;
+ //m_Material.SetColor("_Color", Color.white);
+ }
+
+ if (Input.GetKeyDown("3"))
+ {
+ Debug.Log("3");
+ m_Material.color = Color.green;
+ //m_Material.SetColor("_Color", Color.white);
+ }
+ }
+
+
+ // CREDIT FOR BELOW FUNCTIONS: CODEMONKEY
+ // https://www.youtube.com/watch?v=mZzZXfySeFQ
+ public static void CreateEmptyMeshArrays(int quadCount, out Vector3[] vertices, out Vector2[] uvs, out int[] triangles)
+ {
+ vertices = new Vector3[4 * quadCount];
+ uvs = new Vector2[4 * quadCount];
+ triangles = new int[6 * quadCount];
+ }
+
+
+ private void AddQuad(Vector3[] vertices, Vector2[] uvs, int[] triangles, int index, Vector3 GridPos, Vector3 QuadSize, Vector2 Uv)
+ {
+ vertices[index * 4] = new Vector3((-0.5f + GridPos.x) * QuadSize.x, (-0.5f + GridPos.y) * QuadSize.y);
+ vertices[(index * 4) + 1] = new Vector3((-0.5f + GridPos.x) * QuadSize.x, (+0.5f + GridPos.y) * QuadSize.y);
+ vertices[(index * 4) + 2] = new Vector3((+0.5f + GridPos.x) * QuadSize.x, (+0.5f + GridPos.y) * QuadSize.y);
+ vertices[(index * 4) + 3] = new Vector3((+0.5f + GridPos.x) * QuadSize.x, (-0.5f + GridPos.y) * QuadSize.y);
+
+ Debug.Log(vertices[0]);
+ Debug.Log(vertices[1]);
+ Debug.Log(vertices[2]);
+ Debug.Log(vertices[3]);
+
+ uvs[(index * 4)] = Uv;
+ uvs[(index * 4) + 1] = Uv;
+ uvs[(index * 4) + 2] = Uv;
+ uvs[(index * 4) + 3] = Uv;
+
+ triangles[(index * 6) + 0] = (index * 4) + 0;
+ triangles[(index * 6) + 1] = (index * 4) + 1;
+ triangles[(index * 6) + 2] = (index * 4) + 2;
+ triangles[(index * 6) + 3] = (index * 4) + 2;
+ triangles[(index * 6) + 4] = (index * 4) + 3;
+ triangles[(index * 6) + 5] = (index * 4) + 0;
+ }
+
+ /* private void AddQuad(Vector3[] vertices, Vector2[] uvs, int[] triangles, int index, Vector3 GridPos, Vector3 QuadSize, Vector2 Uv)
+ {
+ vertices[index * 4] = new Vector3((-0.5f + GridPos.x) * QuadSize.x, (-0.5f + GridPos.y) * QuadSize.y);
+ vertices[(index * 4) + 1] = new Vector3((-0.5f + GridPos.x) * QuadSize.x, (+0.5f + GridPos.y) * QuadSize.y);
+ vertices[(index * 4) + 2] = new Vector3((+0.5f + GridPos.x) * QuadSize.x, (+0.5f + GridPos.y) * QuadSize.y);
+ vertices[(index * 4) + 3] = new Vector3((+0.5f + GridPos.x) * QuadSize.x, (-0.5f + GridPos.y) * QuadSize.y);
+
+ Debug.Log(vertices[0]);
+ Debug.Log(vertices[1]);
+ Debug.Log(vertices[2]);
+ Debug.Log(vertices[3]);
+
+ uvs[(index * 4)] = Uv;
+ uvs[(index * 4) + 1] = Uv;
+ uvs[(index * 4) + 2] = Uv;
+ uvs[(index * 4) + 3] = Uv;
+
+ triangles[(index * 6) + 0] = (index * 4) + 0;
+ triangles[(index * 6) + 1] = (index * 4) + 1;
+ triangles[(index * 6) + 2] = (index * 4) + 2;
+ triangles[(index * 6) + 3] = (index * 4) + 2;
+ triangles[(index * 6) + 4] = (index * 4) + 3;
+ triangles[(index * 6) + 5] = (index * 4) + 0;
+ }*/
+}
diff --git a/Pathfinding Visualizer/Assets/Scripts/MeshTesting.cs.meta b/Pathfinding Visualizer/Assets/Scripts/CellMesh.cs.meta
index 49560ea..49560ea 100644
--- a/Pathfinding Visualizer/Assets/Scripts/MeshTesting.cs.meta
+++ b/Pathfinding Visualizer/Assets/Scripts/CellMesh.cs.meta
diff --git a/Pathfinding Visualizer/Assets/Scripts/LogicGrid.cs b/Pathfinding Visualizer/Assets/Scripts/LogicGrid.cs
index e9dc790..873822a 100644
--- a/Pathfinding Visualizer/Assets/Scripts/LogicGrid.cs
+++ b/Pathfinding Visualizer/Assets/Scripts/LogicGrid.cs
@@ -53,9 +53,9 @@ public class LogicGrid
// Enables us to convert the array's (x,y) pair into the user's world-space (also used to scale grid in constructor)
- private Vector3 GetWorldPosition(int x, int y)
+ public Vector3 GetWorldPosition(int x, int y)
{
- return new Vector3(x, y) * this.cellSize + originPosition;
+ return new Vector3(x, y) * this.cellSize + this.originPosition;
}
private void getXY(Vector3 worldPosition, out int x, out int y)
@@ -104,4 +104,18 @@ public class LogicGrid
return GetValue(x, y);
}
+ public int GetHeight()
+ {
+ return this.height;
+ }
+
+ public int GetWidth()
+ {
+ return this.width;
+ }
+
+ public float GetCellSize()
+ {
+ return this.cellSize;
+ }
}
diff --git a/Pathfinding Visualizer/Assets/Scripts/Main.cs b/Pathfinding Visualizer/Assets/Scripts/Main.cs
index 44e2212..30f2671 100644
--- a/Pathfinding Visualizer/Assets/Scripts/Main.cs
+++ b/Pathfinding Visualizer/Assets/Scripts/Main.cs
@@ -5,10 +5,13 @@ using UnityEngine;
public class Main : MonoBehaviour
{
+ [SerializeField] private CellMesh cellMesh;
+
private LogicGrid world;
char placementMode;
int placementValue;
+
// Start is called before the first frame update
void Start()
{
@@ -18,6 +21,9 @@ public class Main : MonoBehaviour
// Set default placement to Obstacle
placementValue = -1;
placementMode = 'o';
+
+ cellMesh.SetGrid(world);
+
Debug.Log("Loaded. Placing Mode: Obstacle");
}
diff --git a/Pathfinding Visualizer/Assets/Scripts/MeshTesting.cs b/Pathfinding Visualizer/Assets/Scripts/MeshTesting.cs
deleted file mode 100644
index 5baba56..0000000
--- a/Pathfinding Visualizer/Assets/Scripts/MeshTesting.cs
+++ /dev/null
@@ -1,80 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine;
-
-public class MeshTesting : MonoBehaviour
-{
-
- Material m_Material;
-
- void Start()
- {
- m_Material = GetComponent<Renderer>().material;
-
- Debug.Log("Mesh Testing");
-
- Mesh mesh = new Mesh();
-
-
- // Build required data-structures for triangle mesh
- Vector3[] vertices = new Vector3[4];
- Vector2[] uv = new Vector2[4];
- int[] triangles = new int[6];
-
- // Set vertices of polygon (2 triangles -> 1 quad)
- vertices[0] = new Vector3( 0, 0);
- vertices[1] = new Vector3( 0, 10);
- vertices[2] = new Vector3(10, 10);
- vertices[3] = new Vector3(10, 0);
-
-
-
- // UV index contains texture position that should match to vertex with same index
- uv[0] = new Vector2(0, 0);
- uv[1] = new Vector2(0, 1);
- uv[2] = new Vector2(1, 1);
- uv[3] = new Vector2(1, 0);
-
-
- // Set order of indexes of vertices to draw polygon (v1 -> v2 -> v3 -> v1)
- // Note: always set clockwise, otherwise mesh will be facing backwards
- triangles[0] = 0;
- triangles[1] = 1;
- triangles[2] = 2;
-
- triangles[3] = 0;
- triangles[4] = 2;
- triangles[5] = 3;
-
- mesh.vertices = vertices;
- mesh.uv = uv;
- mesh.triangles = triangles;
-
- GetComponent<MeshFilter>().mesh = mesh;
-
- }
-
- private void Update()
- {
- if(Input.GetKeyDown("1"))
- {
- Debug.Log("1");
- m_Material.color = Color.white;
- //m_Material.SetColor("_Color", Color.white);
- }
-
- if (Input.GetKeyDown("2"))
- {
- Debug.Log("2");
- m_Material.color = Color.black;
- //m_Material.SetColor("_Color", Color.white);
- }
-
- if (Input.GetKeyDown("3"))
- {
- Debug.Log("3");
- m_Material.color = Color.green;
- //m_Material.SetColor("_Color", Color.white);
- }
- }
-}
generated by cgit v1.3.1-4-g156e at 2026-10-28 14:31:36 +0000