Fix critical issues: script loading, entity types, and color properties

- Issue #37: Fix Windows scripts subdirectory not checked
  - Updated executeScript() to use executable_path() from platform.h
  - Scripts now load correctly when working directory differs from executable

- Issue #76: Fix UIEntityCollection returns wrong type
  - Updated UIEntityCollectionIter::next() to check for stored Python object
  - Derived Entity classes now preserve their type when retrieved from collections

- Issue #9: Recreate RenderTexture when resized (already fixed)
  - Confirmed RenderTexture recreation already implemented in set_size() and set_float_member()
  - Uses 1.5x padding and 4096 max size limit

- Issue #79: Fix Color r, g, b, a properties return None
  - Implemented get_member() and set_member() in PyColor.cpp
  - Color component properties now work correctly with proper validation

- Additional fix: Grid.at() method signature
  - Changed from METH_O to METH_VARARGS to accept two arguments

All fixes include comprehensive tests to verify functionality.

closes #37, closes #76, closes #9, closes #79

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

gitea_issues.py

@@ -0,0 +1,102 @@
+import json
+from time import time
+#with open("/home/john/issues.json", "r") as f:
+#    data = json.loads(f.read())
+#with open("/home/john/issues2.json", "r") as f:
+#    data.extend(json.loads(f.read()))
+
+print("Fetching issues...", end='')
+start = time()
+from gitea import Gitea, Repository, Issue
+g = Gitea("https://gamedev.ffwf.net/gitea", token_text="3b450f66e21d62c22bb9fa1c8b975049a5d0c38d")
+repo = Repository.request(g, "john", "McRogueFace")
+issues = repo.get_issues()
+dur = time() - start
+print(f"({dur:.1f}s)")
+print("Gitea Version: " + g.get_version())
+print("API-Token belongs to user: " + g.get_user().username)
+
+data = [
+    {
+        "labels": i.labels,
+        "body": i.body,
+        "number": i.number,
+    }
+    for i in issues
+    ]
+
+input()
+
+def front_number(txt):
+    if not txt[0].isdigit(): return None
+    number = ""
+    for c in txt:
+        if not c.isdigit():
+            break
+        number += c
+    return int(number)
+
+def split_any(txt, splitters):
+    tokens = []
+    txt = [txt]
+    for s in splitters:
+        for t in txt:
+            tokens.extend(t.split(s))
+        txt = tokens
+        tokens = []
+    return txt
+
+def find_refs(txt):
+    tokens = [tok for tok in split_any(txt, ' ,;\t\r\n') if tok.startswith('#')]
+    return [front_number(tok[1:]) for tok in tokens]
+    
+from collections import defaultdict
+issue_relations = defaultdict(list)
+
+nodes = set()
+
+for issue in data:
+    #refs = issue['body'].split('#')[1::2]
+    
+    #refs = [front_number(r) for r in refs if front_number(r) is not None]
+    refs = find_refs(issue['body'])
+    print(issue['number'], ':', refs)
+    issue_relations[issue['number']].extend(refs)
+    nodes.add(issue['number'])
+    for r in refs:
+        nodes.add(r)
+        issue_relations[r].append(issue['number'])
+    
+
+# Find issue labels
+issue_labels = {}
+for d in data:
+    labels = [l['name'] for l in d['labels']]
+    #print(d['number'], labels)
+    issue_labels[d['number']] = labels
+
+import networkx as nx
+import matplotlib.pyplot as plt
+
+relations = nx.Graph()
+
+for k in issue_relations:
+    relations.add_node(k)
+    for r in issue_relations[k]:
+        relations.add_edge(k, r)
+        relations.add_edge(r, k)
+
+#nx.draw_networkx(relations)
+        
+pos = nx.spring_layout(relations)
+nx.draw_networkx_nodes(relations, pos,
+        nodelist = [n for n in issue_labels if 'Alpha Release Requirement' in issue_labels[n]],
+        node_color="tab:red")
+nx.draw_networkx_nodes(relations, pos,
+        nodelist = [n for n in issue_labels if 'Alpha Release Requirement' not in issue_labels[n]],
+        node_color="tab:blue")
+nx.draw_networkx_edges(relations, pos,
+        edgelist = relations.edges()
+        )
+nx.draw_networkx_labels(relations, pos, {i: str(i) for i in relations.nodes()})
+plt.show()