SDL backend set the mouse button bitmask incorrectly

[dosdemo] / src / polytest.c

diff --git a/src/polytest.c b/src/polytest.c
index 0d5187d..cc64a0d 100644 (file)
--- a/src/polytest.c
+++ b/src/polytest.c
@@ -34,7 +34,8 @@ static struct screen scr = {
        draw
 };
 
-static float theta, phi = 25;
+static float cam_theta, cam_phi = 25;
+static float cam_dist = 3;
 static struct mesh cube, torus;
 
 static struct pimage tex;
@@ -104,11 +105,18 @@ static void update(void)
                        int dy = mouse_y - prev_my;
 
                        if(dx || dy) {
-                               theta += dx * 1.0;
-                               phi += dy * 1.0;
-
-                               if(phi < -90) phi = -90;
-                               if(phi > 90) phi = 90;
+                               if(mouse_bmask & 1) {
+                                       cam_theta += dx * 1.0;
+                                       cam_phi += dy * 1.0;
+
+                                       if(cam_phi < -90) cam_phi = -90;
+                                       if(cam_phi > 90) cam_phi = 90;
+                               }
+                               if(mouse_bmask & 4) {
+                                       cam_dist += dy * 0.5;
+
+                                       if(cam_dist < 0) cam_dist = 0;
+                               }
                        }
                }
        }
@@ -126,9 +134,9 @@ static void draw(void)
 
        g3d_matrix_mode(G3D_MODELVIEW);
        g3d_load_identity();
-       g3d_translate(0, 0, -3);
-       g3d_rotate(phi, 1, 0, 0);
-       g3d_rotate(theta, 0, 1, 0);
+       g3d_translate(0, 0, -cam_dist);
+       g3d_rotate(cam_phi, 1, 0, 0);
+       g3d_rotate(cam_theta, 0, 1, 0);
 
        g3d_light_pos(0, -10, 10, 20);
 
@@ -151,9 +159,9 @@ static void draw_debug(void)
 
        g3d_matrix_mode(G3D_MODELVIEW);
        g3d_load_identity();
-       g3d_translate(0, 0, -3);
-       g3d_rotate(phi, 1, 0, 0);
-       g3d_rotate(theta, 0, 1, 0);
+       g3d_translate(0, 0, -cam_dist);
+       g3d_rotate(cam_phi, 1, 0, 0);
+       g3d_rotate(cam_theta, 0, 1, 0);
 
        g3d_framebuffer(lowres_width, lowres_height, lowres_pixels);
        /*zsort(&torus);*/