finished the tile generator

[megadrive_tetris] / tools / tilegen / src / shaft.c

diff --git a/tools/tilegen/src/shaft.c b/tools/tilegen/src/shaft.c
new file mode 100644 (file)
index 0000000..b35ef5a
--- /dev/null
+++ b/tools/tilegen/src/shaft.c
@@ -0,0 +1,78 @@
+#include <GL/gl.h>
+
+#define GAP_Y  1.0
+#define GAP_X  0.5
+#define WALL_WIDTH     0.2
+
+#define XOFFS_OUT      (GAP_X + WALL_WIDTH)
+#define XOFFS_IN       GAP_X
+#define YOFFS_OUT      (GAP_Y + WALL_WIDTH)
+#define YOFFS_IN       GAP_Y
+#define ZMAX           0.5
+
+enum {
+       COL_FRONT,
+       COL_LEFT,
+       COL_RIGHT,
+       COL_BOT,
+       NUM_COLORS
+};
+
+#define LLEFT  0.8
+#define LRIGHT 1.2
+#define LBOT   1.5
+
+static const float col[NUM_COLORS][3] = {
+       {0.75, 0.72, 0.8},
+       {0.75 * LLEFT, 0.72 * LLEFT, 0.8 * LLEFT},
+       {0.75 * LRIGHT, 0.72 * LRIGHT, 0.8 * LRIGHT},
+       {0.75 * LBOT, 0.72 * LBOT, 0.8 * LBOT}
+};
+
+void draw_shaft(void)
+{
+       glPushAttrib(GL_ENABLE_BIT);
+
+       glBegin(GL_QUADS);
+       /* tunnel-left */
+       glColor3fv(col[COL_LEFT]);
+       glVertex3f(-XOFFS_IN, -YOFFS_IN, 0);
+       glVertex3f(-XOFFS_IN, -YOFFS_IN, -ZMAX);
+       glVertex3f(-XOFFS_IN, YOFFS_OUT, -ZMAX);
+       glVertex3f(-XOFFS_IN, YOFFS_OUT, 0);
+
+       /* tunnel-bottom */
+       glColor3fv(col[COL_BOT]);
+       glVertex3f(-XOFFS_IN, -YOFFS_IN, 0);
+       glVertex3f(XOFFS_IN, -YOFFS_IN, 0);
+       glVertex3f(XOFFS_IN, -YOFFS_IN, -ZMAX);
+       glVertex3f(-XOFFS_IN, -YOFFS_IN, -ZMAX);
+
+       /* tunnel-right */
+       glColor3fv(col[COL_RIGHT]);
+       glVertex3f(XOFFS_IN, -YOFFS_IN, 0);
+       glVertex3f(XOFFS_IN, YOFFS_OUT, 0);
+       glVertex3f(XOFFS_IN, YOFFS_OUT, -ZMAX);
+       glVertex3f(XOFFS_IN, -YOFFS_IN, -ZMAX);
+
+       glColor3fv(col[COL_FRONT]);
+       /* left front face */
+       glVertex3f(-XOFFS_OUT, -YOFFS_OUT, 0);
+       glVertex3f(-XOFFS_IN, -YOFFS_IN, 0);
+       glVertex3f(-XOFFS_IN, YOFFS_OUT, 0);
+       glVertex3f(-XOFFS_OUT, YOFFS_OUT, 0);
+       /* bottom front face */
+       glVertex3f(-XOFFS_OUT, -YOFFS_OUT, 0);
+       glVertex3f(XOFFS_OUT, -YOFFS_OUT, 0);
+       glVertex3f(XOFFS_IN, -YOFFS_IN, 0);
+       glVertex3f(-XOFFS_IN, -YOFFS_IN, 0);
+       /* right front face */
+       glVertex3f(XOFFS_IN, -YOFFS_IN, 0);
+       glVertex3f(XOFFS_OUT, -YOFFS_OUT, 0);
+       glVertex3f(XOFFS_OUT, YOFFS_OUT, 0);
+       glVertex3f(XOFFS_IN, YOFFS_OUT, 0);
+
+       glEnd();
+
+       glPopAttrib();
+}