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Added scene reloading & switching

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This commit is contained in:
Kayne Ruse
2023-03-03 16:05:48 +11:00
parent 4965cd492d
commit f9d0a27408
7 changed files with 92 additions and 59 deletions
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74
box/box_engine.c
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@@ -35,6 +35,7 @@ static void fatalError(char* message) {
void Box_initEngine() {
//clear
engine.rootNode = NULL;
engine.nextRootNodeFilename = TOY_TO_NULL_LITERAL;
engine.running = false;
engine.window = NULL;
engine.renderer = NULL;
@@ -69,23 +70,22 @@ void Box_initEngine() {
const unsigned char* tb = Toy_compileString((const char*)source, &size);
free((void*)source);
//TODO: inner-interpreter
Toy_runInterpreter(&engine.interpreter, tb, size);
//init the node-tree
Box_callRecursiveEngineNode(engine.rootNode, &engine.interpreter, "onInit", NULL);
}
void Box_freeEngine() {
//clear existing root node
if (engine.rootNode != NULL) {
Box_callRecursiveEngineNode(engine.rootNode, &engine.interpreter, "onFree", NULL);
Box_freeEngineNode(engine.rootNode);
engine.rootNode = NULL;
}
if (!TOY_IS_NULL(engine.nextRootNodeFilename)) {
Toy_freeLiteral(engine.nextRootNodeFilename);
}
Toy_freeInterpreter(&engine.interpreter);
//free events
@@ -101,6 +101,64 @@ void Box_freeEngine() {
engine.window = NULL;
}
static void execLoadRootNode() {
//if a new root node is NOT needed, skip out
if (TOY_IS_NULL(engine.nextRootNodeFilename)) {
return;
}
//free the existing root node
if (engine.rootNode != NULL) {
Box_callRecursiveEngineNode(engine.rootNode, &engine.interpreter, "onFree", NULL);
Box_freeEngineNode(engine.rootNode);
engine.rootNode = NULL;
}
//compile the new root node
size_t size = 0;
const unsigned char* source = Toy_readFile(Toy_toCString(TOY_AS_STRING(engine.nextRootNodeFilename)), &size);
const unsigned char* tb = Toy_compileString((const char*)source, &size);
free((void*)source);
//allocate the new root node
engine.rootNode = TOY_ALLOCATE(Box_EngineNode, 1);
//BUGFIX: make an inner-interpreter
Toy_Interpreter inner;
//init the inner interpreter manually
Toy_initLiteralArray(&inner.literalCache);
inner.scope = Toy_pushScope(engine.interpreter.scope);
inner.bytecode = tb;
inner.length = size;
inner.count = 0;
inner.codeStart = -1;
inner.depth = engine.interpreter.depth + 1;
inner.panic = false;
Toy_initLiteralArray(&inner.stack);
inner.hooks = engine.interpreter.hooks;
Toy_setInterpreterPrint(&inner, engine.interpreter.printOutput);
Toy_setInterpreterAssert(&inner, engine.interpreter.assertOutput);
Toy_setInterpreterError(&inner, engine.interpreter.errorOutput);
Box_initEngineNode(engine.rootNode, &inner, tb, size);
//immediately call onLoad() after running the script - for loading other nodes
Box_callEngineNode(engine.rootNode, &inner, "onLoad", NULL);
//manual cleanup
inner.scope = Toy_popScope(inner.scope);
Toy_freeLiteralArray(&inner.stack);
Toy_freeLiteralArray(&inner.literalCache);
//cleanup
Toy_freeLiteral(engine.nextRootNodeFilename);
engine.nextRootNodeFilename = TOY_TO_NULL_LITERAL;
//init the new node-tree
Box_callRecursiveEngineNode(engine.rootNode, &engine.interpreter, "onInit", NULL);
}
static void execEvents() {
Toy_LiteralArray args; //save some allocation by reusing this
Toy_initLiteralArray(&args);
@@ -336,7 +394,7 @@ static void execEvents() {
Toy_freeLiteralArray(&args);
}
void execStep() {
static void execStep() {
if (engine.rootNode != NULL) {
//steps
Box_callRecursiveEngineNode(engine.rootNode, &engine.interpreter, "onStep", NULL);
@@ -355,6 +413,8 @@ void Box_execEngine() {
clock_t delta = (double) CLOCKS_PER_SEC / 60.0;
while (engine.running) {
execLoadRootNode();
execEvents();
//calc the time passed