X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=megadrive_tetris;a=blobdiff_plain;f=tools%2Ftilegen%2Fsrc%2Fshaft.c;fp=tools%2Ftilegen%2Fsrc%2Fshaft.c;h=b35ef5a3e253511a091311a41eb46ccb8fbd1139;hp=0000000000000000000000000000000000000000;hb=980839aac8347438f99f3b2e7c054f2bb19f327b;hpb=f22bed18ebb87b87c6b8e9d31b42f4320bdf34d6

diff --git a/tools/tilegen/src/shaft.c b/tools/tilegen/src/shaft.c
new file mode 100644
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();
+}