mouse controls on pc version

[gbajam22] / src / pc / main.c

diff --git a/src/pc/main.c b/src/pc/main.c
index df6a3f7..cf6ffec 100644 (file)
--- a/src/pc/main.c
+++ b/src/pc/main.c
@@ -16,7 +16,8 @@ static void keydown(unsigned char key, int x, int y);
 static void keyup(unsigned char key, int x, int y);
 static void skeydown(int key, int x, int y);
 static void skeyup(int key, int x, int y);
-static int translate_special(int skey);
+static void mouse(int bn, int st, int x, int y);
+static void motion(int x, int y);
 static unsigned int next_pow2(unsigned int x);
 static void set_fullscreen(int fs);
 static void set_vsync(int vsync);
@@ -51,7 +52,7 @@ static PROC wgl_swap_interval_ext;
 int main(int argc, char **argv)
 {
        glutInit(&argc, argv);
-       glutInitWindowSize(800, 600);
+       glutInitWindowSize(960, 640);
        glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
        glutCreateWindow("GBAjam22 PC build");
 
@@ -62,8 +63,8 @@ int main(int argc, char **argv)
        glutKeyboardUpFunc(keyup);
        glutSpecialFunc(skeydown);
        glutSpecialUpFunc(skeyup);
-
-       glutSetCursor(GLUT_CURSOR_NONE);
+       glutMouseFunc(mouse);
+       glutMotionFunc(motion);
 
        glEnable(GL_TEXTURE_2D);
        glEnable(GL_CULL_FACE);
@@ -269,6 +270,42 @@ static void skeyup(int key, int x, int y)
        }
 }
 
+static int mbstate[3];
+static int prev_x, prev_y;
+
+static void mouse(int bn, int st, int x, int y)
+{
+       int bidx = bn - GLUT_LEFT_BUTTON;
+       int press = st == GLUT_DOWN ? 1 : 0;
+
+       if(bidx < 3) {
+               mbstate[bidx] = press;
+       }
+       prev_x = x;
+       prev_y = y;
+}
+
+static void motion(int x, int y)
+{
+       int dx, dy;
+
+       dx = x - prev_x;
+       dy = y - prev_y;
+       prev_x = x;
+       prev_y = y;
+
+       if(!(dx | dy)) return;
+
+       if(mbstate[0]) {
+               view_dtheta -= dx * 0x100;
+               view_dphi -= dy * 0x100;
+       }
+       if(mbstate[2]) {
+               view_zoom += dy * 0x100;
+               if(view_zoom < 0) view_zoom = 0;
+       }
+}
+
 static unsigned int next_pow2(unsigned int x)
 {
        x--;