X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=3ffe29f0c5dd883bf2fb936bd144411d23fbe9c0;hp=b9a617b8d0d23483030b5e0ab3bf2b7d53818409;hb=be10e0bdc4f3277599aa5c02fdddfc0d1cc2f66f;hpb=dd4a7d914b9bd35563dcafd4acff1d955a58e374

diff --git a/scene.c b/scene.c
index b9a617b..3ffe29f 100644
--- a/scene.c
+++ b/scene.c
@@ -87,7 +87,7 @@ void processMaterialEvents(int id) {
 void processLightEvents(int id) {
   switch (id) {
     case M_LIGHT_MOVE_LIGHT_1:
-      // Do stuff
+      manipulateState = STATE_LIGHT_1_MOVE;
       break;
 
     case M_LIGHT_RGBALL_LIGHT_1:
@@ -95,7 +95,7 @@ void processLightEvents(int id) {
       break;
 
     case M_LIGHT_MOVE_LIGHT_2:
-      // Do stuff
+      manipulateState = STATE_LIGHT_2_MOVE;
       break;
 
     case M_LIGHT_RGBALL_LIGHT_2:
@@ -346,6 +346,29 @@ void motion(int x, int y) {
       
       break;
 
+    case STATE_LIGHT_1_MOVE:
+    case STATE_LIGHT_2_MOVE:
+      ; // Semi-colon required to allow variable declaration below
+      
+      int i = 0;
+      if ( manipulateState == STATE_LIGHT_2_MOVE ) i = 1;
+
+      if ( buttonSelected == GLUT_LEFT_BUTTON ) {
+        // w: left/right, h: near/far
+        float angler = 2 * M_PI * ( (rotate*camRotateFactor)/360.0 );
+        lightObjs[i].position[0] += diffx * cos(angler) * leftrightFactor + diffy * cos(M_PI/2 + angler) * nearfarFactor;
+        lightObjs[i].position[2] += diffx * sin(angler) * leftrightFactor + diffy * sin(M_PI/2 + angler) * nearfarFactor;
+
+      } else if ( buttonSelected == GLUT_MIDDLE_BUTTON ) {
+        // w: increase/decrease some light param
+        // **NOTE: Currently not implemented
+
+        // h: up/down
+        lightObjs[i].position[1] -= diffy * updownFactor;
+      }
+
+      break;
+
   }
 
   starty = y;
@@ -389,15 +412,6 @@ void display() {
 
   glRotatef(camAngle*camAngleFactor, 1.0, 0.0, 0.0); // Set camera angle upward
 
-  /* Reposition the light source 0. */
-  lightObjs[0].position[0] = 12*cos(45);
-  lightObjs[0].position[1] = 5;
-  lightObjs[0].position[2] = 12*sin(45 + 180);
-  lightObjs[0].position[3] = 0.0;
-
-  //direction0[0] = lightPosition0[0];
-  //direction0[2] = lightPosition0[2];
-
   glPushMatrix();
 
     /* Perform scene rotations based on user mouse/keyboard input. */
@@ -503,5 +517,17 @@ int main(int argc, char **argv) {
 
   initializeLights();
 
+  /* Initial light 0 position. */
+  lightObjs[0].position[0] = 4;
+  lightObjs[0].position[1] = 5;
+  lightObjs[0].position[2] = 6;
+  lightObjs[0].position[3] = 0.0;
+
+  /* Initial light 1 position. */
+  lightObjs[1].position[0] = -4;
+  lightObjs[1].position[1] = 5;
+  lightObjs[1].position[2] = -6;
+  lightObjs[1].position[3] = 0.0;
+
   glutMainLoop();
 }
\ No newline at end of file