joeylib3d/j3d/main.c

/*
 *  JoeyLib 3D
 *  Copyright (C) 2019 Scott Duensing <scott@kangaroopunch.com>
 *
 *  This software is provided 'as-is', without any express or implied
 *  warranty.  In no event will the authors be held liable for any damages
 *  arising from the use of this software.
 *
 *  Permission is granted to anyone to use this software for any purpose,
 *  including commercial applications, and to alter it and redistribute it
 *  freely, subject to the following restrictions:
 *
 *  1. The origin of this software must not be misrepresented; you must not
 *     claim that you wrote the original software. If you use this software
 *     in a product, an acknowledgment in the product documentation would be
 *     appreciated but is not required.
 *  2. Altered source versions must be plainly marked as such, and must not be
 *     misrepresented as being the original software.
 *  3. This notice may not be removed or altered from any source distribution.
*/


#include <stdio.h>
#include <string.h>
#include <stdarg.h>

#define JOEY_MAIN
#include "joey.h"

#ifdef JOEY_IIGS
segment "j3dTest";
#endif

#include "j3d.h"


void printAt(jlStaT *font, jint16 cx, jint16 cy, const char *what, ...);


__attribute__((__format__ (__printf__, 4, 0)))
void printAt(jlStaT *font, jint16 cx, jint16 cy, const char *what, ...) {
		jint16  x;
		jint16  y;
		jint16  counter;
		char    msg[40];  // Very short messages (screen width).  Be careful!
		va_list va;

		va_start(va, what);
		vsprintf(msg, what, va);
		va_end(va);

		for (counter=0; counter<(int)strlen(msg); counter++) {
			x = msg[counter] % 40;
			y = msg[counter] / 40;
			jlDrawBlit8x8(font, x, y, counter + cx, cy);
		}
}


int main(void) {
	jint16    x;
	jint16    y;
	jint16    c;
	jlStaT   *font  = NULL;
	j3WorldT *world = NULL;
	bool      r;

	jlUtilStartup("JoeyLib 3D");
	jlStaLoad(font, "font");

	printAt(font, 1, 1, "Starting JoeyLib3D...");
	jlDisplayPresent();
	j3UtilStartup();

	printAt(font, 1, 1, "Loading object...    ");
	jlDisplayPresent();
	r = j3WorldLoad(world, "pyramid");
	if (!r) {
		printAt(font, 1, 1, "Object loading:  Failed.");
		jlDisplayPresent();
		jlKeyWaitForAny();
	} else {
		printAt(font, 1, 1, "Object loading:  Success!");
		jlDisplayPresent();

		// Assign fake colors until we can read them from the J3D
		c = 1;
		for (x=0; x<world->objectCount; x++) {
			for (y=0; y<world->objects[x].triangleCount; y++) {
				world->objects[x].triangles[y].color = c++;
				if (c > 15) {
					c = 1;
				}
			}
		}

#ifdef JOEY_LINUX
		printf("Objects:  %d\n", world->objectCount);
		for (x=0; x<world->objectCount; x++) {
			printf("Object %d:\n", x);
			printf("  Verticies:  %d\n", world->objects[x].vertexCount);
			for (y=0; y<world->objects[x].vertexCount; y++) {
				printf("    Vertex %d:  %f  %f  %f\n",
					y,
					(double)world->objects[x].verticies[y].local.x,
					(double)world->objects[x].verticies[y].local.y,
					(double)world->objects[x].verticies[y].local.z
				);
			}
			printf("  Triangles:  %d\n", world->objects[x].triangleCount);
			for (y=0; y<world->objects[x].triangleCount; y++) {
				printf("    Triangle %d:  %d  %d  %d\n",
					y,
					world->objects[x].triangles[y].index[0],
					world->objects[x].triangles[y].index[1],
					world->objects[x].triangles[y].index[2]
				);
			}
		}
#endif

		for (x=0; x<world->objectCount; x++) {
			j3ObjectMoveTo(world->objects[x], 0, 0, 300);    // Matching values in code I'm studying
			j3ObjectScaleTo(world->objects[x], 30, 30, 30);  // Matching values in code I'm studying
		}

		while (!jlKeyPressed() && !jlUtilMustExit()) {
			jlDrawColor(0);
			jlDrawClear();
			jlDrawColor(15);
			jlDrawBox(0, 0, 319, 199);

			//***TODO*** HACK!!!
			_j3PolygonCount = 0;

			for (x=0; x<world->objectCount; x++) {
				j3ObjectRotate(world->objects[x], 2, 4, 6);  // Matching values in code I'm studying
				j3ObjectUpdate(world->objects[x]);
				//j3DrawWireframe(world->objects[x]);
				//j3DrawSolid(world->objects[x]);
				j3DrawWorld(world);
			}

			c = 0;
			for (x=0; x<world->objects[0].triangleCount; x++) {
				if (world->objects[0].triangles[x].visible) {
					c++;
				}
			}

			printAt(font, 1, 1, "Verticies:  %d", world->objects[0].vertexCount);
			printAt(font, 1, 2, "Triangles:  %d (%d visible) ", world->objects[0].triangleCount, c);

			jlDisplayPresent();
			jlUtilSleep(1);
		}
		jlKeyRead();
	}

	j3WorldFree(world);
	jlStaFree(font);

	j3UtilShutdown();
	jlUtilShutdown();
}