#include "mesh.h"
#include "metasurf.h"
#include "util.h"
-
-#define BBOX_SIZE 10.0f
-#define BBOX_HSZ (BBOX_SIZE / 2.0f)
-#define VOX_RES 30
-#define VOX_STEP (BBOX_SIZE / (float)VOX_RES)
+#include "cgmath/cgmath.h"
+#include "metaobj.h"
+
+#define BBOX_XSZ 16
+#define BBOX_YSZ 15
+#define BBOX_ZSZ 10
+#define VOX_RES 24
+
+#define BBOX_HXSZ (BBOX_XSZ / 2.0f)
+#define BBOX_HYSZ (BBOX_YSZ / 2.0f)
+#define BBOX_HZSZ (BBOX_ZSZ / 2.0f)
+#define VOX_XRES (VOX_RES * BBOX_XSZ / BBOX_ZSZ)
+#define VOX_YRES (VOX_RES * BBOX_YSZ / BBOX_ZSZ)
+#define VOX_ZRES VOX_RES
+#define VOX_XSTEP (BBOX_XSZ / (float)VOX_XRES)
+#define VOX_YSTEP (BBOX_YSZ / (float)VOX_YRES)
+#define VOX_ZSTEP (BBOX_ZSZ / (float)VOX_ZRES)
#define VBUF_MAX_TRIS 256
#define VBUF_SIZE (VBUF_MAX_TRIS * 3)
-struct mball {
- float energy;
- float x, y, z;
-};
-
-static struct g3d_mesh mesh;
static struct g3d_vertex *vbuf;
static struct metasurface *msurf;
-static struct mball *balls;
-static int num_balls;
+static struct mobject **mobj;
+
+#define NUM_OBJ 2
+static int num_mobj, cur_obj;
+static int grabbed;
+
+static int mousebn[3];
+static int mousex, mousey;
+static float cam_theta, cam_phi;
+
+extern unsigned char textures_img[];
+extern unsigned char textures_cmap[];
+extern unsigned char textures_slut[];
+
static void update(float tsec);
static void draw_metaballs(void);
+
int game_init(void)
{
- int i;
-
init_colormgr();
+ load_colormap(0, 256, textures_cmap, textures_slut);
g3d_init();
- g3d_framebuffer(320, 200, framebuf);
- g3d_viewport(0, 0, 320, 200);
+ g3d_framebuffer(FB_WIDTH, FB_HEIGHT, framebuf);
+ g3d_viewport(0, 0, FB_WIDTH, FB_HEIGHT);
- g3d_clear_color(0, 0, 0);
+ g3d_clear_color(0);
g3d_matrix_mode(G3D_PROJECTION);
g3d_load_identity();
g3d_enable(G3D_DEPTH_TEST);
g3d_enable(G3D_LIGHTING);
g3d_enable(G3D_LIGHT0);
+ g3d_light_ambient(0.2);
g3d_polygon_mode(G3D_GOURAUD);
- gen_torus_mesh(&mesh, 2.0, 0.7, 24, 12);
-
if(!(msurf = msurf_create())) {
return -1;
}
msurf_set_threshold(msurf, 8);
msurf_set_inside(msurf, MSURF_GREATER);
- msurf_set_bounds(msurf, -BBOX_HSZ, -BBOX_HSZ, -BBOX_HSZ, BBOX_HSZ, BBOX_HSZ, BBOX_HSZ);
- msurf_set_resolution(msurf, VOX_RES, VOX_RES, VOX_RES);
+ msurf_set_bounds(msurf, -BBOX_HXSZ, -BBOX_HYSZ, -BBOX_HZSZ, BBOX_HXSZ, BBOX_HYSZ, BBOX_HZSZ);
+ msurf_set_resolution(msurf, VOX_XRES, VOX_YRES, VOX_ZRES);
msurf_enable(msurf, MSURF_NORMALIZE);
vbuf = malloc_nf(VBUF_SIZE * sizeof *vbuf);
- num_balls = 1;
- balls = calloc_nf(num_balls, sizeof *balls);
-
- for(i=0; i<num_balls; i++) {
- balls[i].energy = 20;
- }
+ num_mobj = NUM_OBJ;
+ mobj = malloc(num_mobj * sizeof *mobj);
+ mobj[0] = metaobj_sgi();
+ mobj[1] = metaobj_sflake();
+ cur_obj = 1;
return 0;
}
static void update(float tsec)
{
- int i, j, k, n;
- float x, y, z, dx, dy, dz, dsq, energy;
+ int i, j, k;
+ float energy;
+ cgm_vec3 pos;
float *vox = msurf_voxels(msurf);
- for(i=0; i<num_balls; i++) {
- balls[i].y = sin(tsec) * 5.0f;
- }
+ mobj[cur_obj]->update(mobj[cur_obj], tsec);
- for(i=0; i<VOX_RES; i++) {
- z = -BBOX_HSZ + i * VOX_STEP;
- for(j=0; j<VOX_RES; j++) {
- y = -BBOX_HSZ + j * VOX_STEP;
- for(k=0; k<VOX_RES; k++) {
- x = -BBOX_HSZ + k * VOX_STEP;
+ for(i=0; i<VOX_ZRES; i++) {
+ pos.z = -BBOX_HZSZ + i * VOX_ZSTEP;
+ for(j=0; j<VOX_YRES; j++) {
+ pos.y = -BBOX_HYSZ + j * VOX_YSTEP;
+ for(k=0; k<VOX_XRES; k++) {
+ pos.x = -BBOX_HXSZ + k * VOX_XSTEP;
/* initialize with the vertical distance for the pool */
- energy = 5.0 / (y + BBOX_HSZ * 0.98);
+ energy = 5.0 / (pos.y + BBOX_HYSZ);
+ /*energy += 5.0 / (pos.x + BBOX_HXSZ);
+ energy += 5.0 / (BBOX_HXSZ - pos.x);*/
- /* add the contribution of the balls */
- for(n=0; n<num_balls; n++) {
- dx = x - balls[n].x;
- dy = y - balls[n].y;
- dz = z - balls[n].z;
- dsq = dx * dx + dy * dy + dz * dz;
+ energy += mobj[cur_obj]->eval(mobj[cur_obj], &pos);
- energy += balls[n].energy / dsq;
- }
*vox++ = energy;
}
}
g3d_matrix_mode(G3D_MODELVIEW);
g3d_load_identity();
- g3d_translate(0, 0, -15);
- /*g3d_rotate(tsec * 50.0f, 1, 0, 0);
- g3d_rotate(tsec * 30.0f, 0, 0, 1);
-
- draw_mesh(&mesh);*/
+ g3d_translate(0, 1, -14);
+ g3d_rotate(cam_phi, 1, 0, 0);
+ g3d_rotate(cam_theta, 0, 1, 0);
+
+ g3d_disable(G3D_LIGHTING);
+ g3d_enable(G3D_TEXTURE_2D);
+ g3d_enable(G3D_TEXTURE_GEN);
+ g3d_set_texture(32, 32, textures_img);
draw_metaballs();
+ g3d_disable(G3D_TEXTURE_GEN);
+ g3d_enable(G3D_LIGHTING);
game_swap_buffers();
}
void game_mouse(int bn, int press, int x, int y)
{
+ mousebn[bn] = press;
+ mousex = x;
+ mousey = y;
+
+ if(bn == 0) {
+ if(press && !grabbed) {
+ grabbed = 1;
+ } else if(!press && grabbed) {
+ grabbed = 0;
+ }
+ }
}
void game_motion(int x, int y)
{
+ int dx = x - mousex;
+ int dy = y - mousey;
+ mousex = x;
+ mousey = y;
+
+ if((dx | dy) == 0) return;
+
+ if(mousebn[0]) {
+ if(grabbed) {
+ mobj[cur_obj]->pos.x += dx * 0.1;
+ mobj[cur_obj]->pos.y -= dy * 0.1;
+ }
+ }
+ if(mousebn[2]) {
+ cam_theta += (float)dx * (0.6f * 1.333333333f);
+ cam_phi += (float)dy * 0.6f;
+ if(cam_phi < -90) cam_phi = -90;
+ if(cam_phi > 90) cam_phi = 90;
+ }
}
projects / metatoy / blobdiff