turtlegraphic.c

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#include "turtlegraphic.h"

#define CLS_TURTLEGRAPHIC "at/fhv/sgr/graphiclib/TurtleGraphic"

#ifdef __cplusplus
extern "C" {
#endif

void turtleright(TurtleGraphic* tg, jfloat angle) {
   callVoidMethod(tg->tg.tg, tg->tg.mright, angle);
}

void turtleleft(TurtleGraphic* tg, jfloat angle) {
   callVoidMethod(tg->tg.tg, tg->tg.mleft, angle);
}

void turtleforward(TurtleGraphic* tg, jfloat l) {
   callVoidMethod(tg->tg.tg, tg->tg.mforward, l);
}

void turtlebackward(TurtleGraphic* tg, jfloat l) {
   callVoidMethod(tg->tg.tg, tg->tg.mbackward, l);
}

void setTurtleAngle(TurtleGraphic* tg, jfloat angle) {
   callVoidMethod(tg->tg.tg, tg->tg.msetAngle, angle);
}

void setTurtleColor(TurtleGraphic* tg, Color c) {
   jobject jcolor = convertColor(&c);
   callVoidMethod(tg->tg.tg, tg->tg.msetColor, jcolor);
   deleteGlobalReference(jcolor);
}

void moveTurtleTo(TurtleGraphic* tg, jfloat x, jfloat y) {
   callVoidMethod(tg->tg.tg, tg->tg.mmoveTo, x, y);
}

void setTurtleDraw(TurtleGraphic* tg, jboolean draw) {
   callVoidMethod(tg->tg.tg, tg->tg.msetDraw, draw);
}

jfloat getTurtleX(TurtleGraphic* tg) {
   return callFloatMethod(tg->tg.tg, tg->tg.mgetX);
}

jfloat getTurtleY(TurtleGraphic* tg) {
   return callFloatMethod(tg->tg.tg, tg->tg.mgetY);
}

void printTurtleText(TurtleGraphic* tg, const char* text) {
   callVoidMethod(tg->tg.tg, tg->tg.mprintText, createJString(text));
}

void clearTurtleScreen(TurtleGraphic* tg) {
   callVoidMethod(tg->tg.tg, tg->tg.mclearScreen);
}

void initTurtleGraphic_(TurtleGraphic_* tg) {
   tg->right = &turtleright;
   tg->left = &turtleleft;
   tg->forward = &turtleforward;
   tg->backward = &turtlebackward;
   tg->setAngle = &setTurtleAngle;
   tg->setColor = &setTurtleColor;
   tg->moveTo = &moveTurtleTo;
   tg->setDraw = &setTurtleDraw;
   tg->getX = &getTurtleX;
   tg->getY = &getTurtleY;
   tg->printText = &printTurtleText;
   tg->clearScreen = &clearTurtleScreen;
}

void createTurtleGraphic_(TurtleGraphic* tg, Frame* frame) {
   jmethodID constructor;

   tg->tg.clstg = findClass(CLS_TURTLEGRAPHIC);
   tg->tg.mright = findMethod(tg->tg.clstg, "right", "(F)V");
   tg->tg.mleft = findMethod(tg->tg.clstg, "left", "(F)V");
   tg->tg.mmoveTo = findMethod(tg->tg.clstg, "setPos", "(FF)V");
   tg->tg.mforward = findMethod(tg->tg.clstg, "forward", "(F)V");
   tg->tg.mbackward = findMethod(tg->tg.clstg, "backward", "(F)V");
   tg->tg.msetAngle = findMethod(tg->tg.clstg, "setAngle", "(F)V");
   tg->tg.msetColor = findMethod(tg->tg.clstg, "setColor", "(Ljava/awt/Color;)V");
   tg->tg.mgetX = findMethod(tg->tg.clstg, "getX", "()F");
   tg->tg.mgetY = findMethod(tg->tg.clstg, "getY", "()F");
   tg->tg.msetDraw = findMethod(tg->tg.clstg, "setDraw", "(Z)V");
   tg->tg.mprintText = findMethod(tg->tg.clstg, "printText", "(Ljava/lang/String;)V");
   tg->tg.mclearScreen = findMethod(tg->tg.clstg, "clearScreen", "()V");

   constructor = findMethod(tg->tg.clstg, "<init>", "(L" CLS_FRAME ";)V");

   tg->tg.tg = newObject(tg->tg.clstg, constructor, frame->frame.frame);
}

void createTurtleGraphicCPP(TurtleGraphicCPP_* tg, Frame* frame) {
   tg->functions = (TurtleGraphic_*)malloc(sizeof(TurtleGraphic_));
   initTurtleGraphic_(tg->functions);
   createTurtleGraphic_((TurtleGraphic*)tg, frame);
}

void createTurtleGraphicC(TurtleGraphic_* tg, Frame* frame) {
   initTurtleGraphic_(tg);
   createTurtleGraphic_((TurtleGraphic*)tg, frame);
}

void deleteTurtleGraphic_(TurtleGraphic* tg) {
   deleteGlobalReference(tg->tg.tg);
   deleteGlobalReference(tg->tg.clstg);
}

void deleteTurtleGraphicCPP(TurtleGraphicCPP_* tg) {
   deleteTurtleGraphic_((TurtleGraphic*)tg);
   free(tg->functions);
}

void deleteTurtleGraphicC(TurtleGraphic_* tg) {
   deleteTurtleGraphic_((TurtleGraphic*)tg);
}

#ifdef __cplusplus
} /* extern "C" */
#endif

/* end of file turtlegraphic.c */

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