Ratstail91/Airport
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Prevented a potential null access

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This commit is contained in:
Kayne Ruse
2022-10-03 20:04:56 +01:00
parent 37663efcc0
commit 4ca1c80015
3 changed files with 6 additions and 1 deletions
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1
assets/scripts/init.toy
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@@ -1,5 +1,6 @@
import engine; import engine;
//this function must always be called, or the engine won't run
initWindow("Airport Game", 800, 600, false); initWindow("Airport Game", 800, 600, false);
loadRootNode("assets/scripts/root.toy"); loadRootNode("assets/scripts/root.toy");

4
core/engine.c
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@@ -146,7 +146,9 @@ void freeEngine() {
static void execStep() { static void execStep() {
//call onStep //call onStep
callEngineNode(engine.rootNode, &engine.interpreter, "onStep"); if (engine.rootNode != NULL) {
callEngineNode(engine.rootNode, &engine.interpreter, "onStep");
}
//poll events //poll events
SDL_Event event; SDL_Event event;

2
core/lib_engine.c
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@@ -191,7 +191,9 @@ static int nativeLoadRootNode(Interpreter* interpreter, LiteralArray* arguments)
size_t originalSize = engine.interpreter.length; size_t originalSize = engine.interpreter.length;
int originalCount = engine.interpreter.count; int originalCount = engine.interpreter.count;
int originalCodeStart = engine.interpreter.codeStart; int originalCodeStart = engine.interpreter.codeStart;
initEngineNode(engine.rootNode, &engine.interpreter, tb, size); initEngineNode(engine.rootNode, &engine.interpreter, tb, size);
engine.interpreter.bytecode = originalTb; engine.interpreter.bytecode = originalTb;
engine.interpreter.length = originalSize; engine.interpreter.length = originalSize;
engine.interpreter.count = originalCount; engine.interpreter.count = originalCount;