improved controlscl

- hold mouse left to zoom to desired point
- hold mouse right to zoom out from that point
- press/hold i to increase iterations
- press/hold d to decrease iterations
- dont press anything to pause

1 files changed, 15 insertions, 6 deletions

diff --git a/src/render_cpu.c b/src/render_cpu.c
index 8f8d439..64fc9ec 100644
--- a/src/render_cpu.c
+++ b/src/render_cpu.c
@@ -131,17 +131,26 @@ void mouse_cpu(int button, int state, int x, int y)
 {
 	if (state == GLUT_DOWN)
 	{
-		switch(button)
+		switch (button)
 		{
 		case GLUT_LEFT_BUTTON:
-			config_cpu->to_x = x_min + ((d64) x * (x_max - x_min)) / config_cpu->width;
-			config_cpu->to_y = y_min + ((d64) (config_cpu->height - y) * (y_max - y_min)) / config_cpu->height;
-			t_old_cpu = glutGet(GLUT_ELAPSED_TIME);
-			glutIdleFunc(idle_cpu);
+			if (config_cpu->speed < 0)
+				config_cpu->speed = (-1) * config_cpu->speed;
 			break;
 		case GLUT_RIGHT_BUTTON:
-			glutIdleFunc(idle_cpu_dummy);
+			if (config_cpu->speed > 0)
+				config_cpu->speed = (-1) * config_cpu->speed;
 			break;
 		}
+		config_cpu->to_x = x_min
+				+ ((d64) x * (x_max - x_min)) / config_cpu->width;
+		config_cpu->to_y = y_min
+				+ ((d64) y * (y_max - y_min)) / config_cpu->height;
+		t_old_cpu = glutGet(GLUT_ELAPSED_TIME);
+		glutIdleFunc(idle_cpu);
+	}
+	else if (state == GLUT_UP)
+	{
+		glutIdleFunc(idle_cpu_dummy);
 	}
 }