X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;ds=sidebyside;f=src%2Fcommon%2FScriptRunner.cpp;fp=src%2Fcommon%2FScriptRunner.cpp;h=110b702b88a86aad29297759e5b666940d203da5;hb=6e88a625710c7936f87b38ecf6094472f3a49f4f;hp=0000000000000000000000000000000000000000;hpb=f1e445b660889a18eaf05e7fcc16b360fb8605d5;p=l2e.git

diff --git a/src/common/ScriptRunner.cpp b/src/common/ScriptRunner.cpp
new file mode 100644
index 0000000..110b702
--- /dev/null
+++ b/src/common/ScriptRunner.cpp
@@ -0,0 +1,126 @@
+/*
+ * ScriptRunner.cpp
+ *
+ *  Created on: Oct 13, 2012
+ *      Author: holy
+ */
+
+#include "ScriptRunner.h"
+
+#include "Script.h"
+#include "ScriptHost.h"
+
+#include <cstdlib>
+
+using geometry::Vector;
+
+namespace common {
+
+ScriptRunner::ScriptRunner()
+: host(0)
+, script(0)
+, cursor(0)
+, address0(0)
+, address1(0)
+, integer0(0)
+, integer1(0)
+, vector0(0, 0)
+, vector1(0, 0) {
+
+}
+
+ScriptRunner::~ScriptRunner() {
+
+}
+
+
+bool ScriptRunner::Running() const {
+	return script && cursor < script->textlen;
+}
+
+void ScriptRunner::Run(ScriptHost &h, const Script &s) {
+	host = &h;
+	script = &s;
+	Reset();
+	while (cursor < script->textlen) {
+		unsigned char code(script->text[cursor]);
+		++cursor;
+		Exec(code);
+	}
+	host = 0;
+	script = 0;
+}
+
+void ScriptRunner::Reset() {
+	cursor = 0;
+	address0 = 0;
+	address1 = 0;
+	integer0 = 0;
+	integer1 = 0;
+	vector0 = Vector<int>(0, 0);
+	vector1 = Vector<int>(0, 0);
+}
+
+void ScriptRunner::Exec(unsigned char code) {
+	switch (code) {
+		case Script::CODE_MOVE_A0:
+			address0 = PopAddress();
+			break;
+		case Script::CODE_MOVE_A1:
+			address1 = PopAddress();
+			break;
+		case Script::CODE_MOVE_I0:
+			integer0 = PopInt();
+			break;
+		case Script::CODE_MOVE_I1:
+			integer1 = PopInt();
+			break;
+		case Script::CODE_MOVE_V0:
+			vector0 = PopVector();
+			break;
+		case Script::CODE_MOVE_V1:
+			vector1 = PopVector();
+			break;
+		case Script::CODE_ADD_I0:
+			integer0 += PopInt();
+			break;
+		case Script::CODE_ADD_I1:
+			integer1 += PopInt();
+			break;
+		case Script::CODE_ADD_V0:
+			vector0 += PopVector();
+			break;
+		case Script::CODE_ADD_V1:
+			vector1 += PopVector();
+			break;
+		case Script::CODE_RAND_I0:
+			integer0 = std::rand();
+			break;
+		case Script::CODE_RAND_I1:
+			integer1 = std::rand();
+			break;
+		case Script::CODE_SYSCALL:
+			host->HandleSyscall(*this);
+			break;
+	}
+}
+
+void *ScriptRunner::PopAddress() {
+	void *const *addr(reinterpret_cast<void *const *>(script->text + cursor));
+	cursor += sizeof(void *);
+	return *addr;
+}
+
+int ScriptRunner::PopInt() {
+	const int *i(reinterpret_cast<const int *>(script->text + cursor));
+	cursor += sizeof(int);
+	return *i;
+}
+
+const Vector<int> &ScriptRunner::PopVector() {
+	const Vector<int> *vec(reinterpret_cast<const Vector<int> *>(script->text + cursor));
+	cursor += sizeof(Vector<int>);
+	return *vec;
+}
+
+}