/*---------------------------------------------------------------------------*/
-static void coin_head(int n, float radius, float thick)
-{
- int i;
-
- glBegin(GL_TRIANGLE_FAN);
- {
- glNormal3f(0.f, 0.f, +1.f);
-
- for (i = 0; i < n; i++)
- {
- float x = fcosf(+2.f * PI * i / n);
- float y = fsinf(+2.f * PI * i / n);
-
- glTexCoord2f(-x * 0.5f + 0.5f, +y * 0.5f + 0.5f);
- glVertex3f(radius * x, radius * y, +thick);
- }
- }
- glEnd();
-}
-
-static void coin_tail(int n, float radius, float thick)
-{
- int i;
-
- glBegin(GL_TRIANGLE_FAN);
- {
- glNormal3f(0.f, 0.f, -1.f);
-
- for (i = 0; i < n; i++)
- {
- float x = fcosf(-2.f * PI * i / n);
- float y = fsinf(-2.f * PI * i / n);
-
- glTexCoord2f(+x * 0.5f + 0.5f, +y * 0.5f + 0.5f);
- glVertex3f(radius * x, radius * y, -thick);
- }
- }
- glEnd();
-}
-
-static void coin_edge(int n, float radius, float thick)
-{
- int i;
-
- glBegin(GL_QUAD_STRIP);
- {
- for (i = 0; i <= n; i++)
- {
- float x = fcosf(2.f * PI * i / n);
- float y = fsinf(2.f * PI * i / n);
-
- glNormal3f(x, y, 0.0f);
- glVertex3f(radius * x, radius * y, +thick);
- glVertex3f(radius * x, radius * y, -thick);
- }
- }
- glEnd();
-}
-
-/*---------------------------------------------------------------------------*/
-
-static GLuint item_coin_text;
-static GLuint item_grow_text;
-static GLuint item_shrink_text;
-static GLuint item_list;
-
-void item_color(const struct s_item *hp, float *c)
-{
- switch (hp->t)
- {
-
- case ITEM_COIN:
-
- if (hp->n >= 1)
- {
- c[0] = 1.0f;
- c[1] = 1.0f;
- c[2] = 0.2f;
- }
- if (hp->n >= 5)
- {
- c[0] = 1.0f;
- c[1] = 0.2f;
- c[2] = 0.2f;
- }
- if (hp->n >= 10)
- {
- c[0] = 0.2f;
- c[1] = 0.2f;
- c[2] = 1.0f;
- }
- break;
-
- case ITEM_GROW:
- case ITEM_SHRINK:
-
- default:
-
- c[0] = 1.0f;
- c[1] = 1.0f;
- c[2] = 1.0f;
-
- break;
- }
-}
-
-void item_init(int b)
-{
- int n = b ? 32 : 8;
-
- item_coin_text = make_image_from_file(IMG_ITEM_COIN);
- item_grow_text = make_image_from_file(IMG_ITEM_GROW);
- item_shrink_text = make_image_from_file(IMG_ITEM_SHRINK);
-
- item_list = glGenLists(1);
-
- glNewList(item_list, GL_COMPILE);
- {
- glDisable(GL_TEXTURE_2D);
- coin_edge(n, COIN_RADIUS, COIN_THICK);
- glEnable (GL_TEXTURE_2D);
- coin_head(n, COIN_RADIUS, COIN_THICK);
- coin_tail(n, COIN_RADIUS, COIN_THICK);
- }
- glEndList();
-}
-
-void item_free(void)
-{
- if (glIsList(item_list))
- glDeleteLists(item_list, 1);
-
- if (glIsTexture(item_coin_text))
- glDeleteTextures(1, &item_coin_text);
-
- if (glIsTexture(item_grow_text))
- glDeleteTextures(1, &item_grow_text);
-
- if (glIsTexture(item_shrink_text))
- glDeleteTextures(1, &item_shrink_text);
-
- item_list = 0;
- item_coin_text = 0;
- item_grow_text = 0;
- item_shrink_text = 0;
-}
-
-void item_push(int type)
-{
- static const float a[4] = { 0.2f, 0.2f, 0.2f, 1.0f };
- static const float s[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
- static const float e[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
- static const float h[1] = { 10.0f };
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, a);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, s);
- glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, e);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, h);
-
- glEnable(GL_COLOR_MATERIAL);
-
- switch (type)
- {
- case ITEM_COIN:
- glBindTexture(GL_TEXTURE_2D, item_coin_text);
- break;
-
- case ITEM_GROW:
- glBindTexture(GL_TEXTURE_2D, item_grow_text);
- break;
-
- case ITEM_SHRINK:
- glBindTexture(GL_TEXTURE_2D, item_shrink_text);
- break;
- }
-}
-
-void item_draw(const struct s_item *hp, float r)
-{
- float c[3];
-
- item_color(hp, c);
-
- glColor3fv(c);
- glCallList(item_list);
-}
-
-void item_pull(void)
-{
- glColor3f(1.0f, 1.0f, 1.0f);
- glDisable(GL_COLOR_MATERIAL);
-}
-
-/*---------------------------------------------------------------------------*/
-
static GLuint goal_list;
void goal_init(int b)