first commit

2025-06-07 01:59:34 -04:00
commit 388ac241f0
3558 changed files with 9116289 additions and 0 deletions
--- a/CS4451/proj4/Input.cpp
+++ b/CS4451/proj4/Input.cpp
@@ -0,0 +1,165 @@
+//#include <GL/glut.h>
+
+#include "Input.h"
+#include "Renderer.h"
+#include "structs.h"
+#include "defs.h"
+
+#include <math.h>
+
+GLvoid menu ( int value ) {
+    switch (value) {
+        case MENU_SHADOWS:
+            keyboard_event('a',0,0);
+            break;
+        case MENU_PRIMITIVES_ONLY:
+            keyboard_event('p',0,0);
+            break;
+        case MENU_SHADOW_VOLUMES:
+            keyboard_event('v',0,0);
+            break;
+        case MENU_CLEAR_WHITE:
+            keyboard_event('x',0,0);
+            break;
+        case MENU_CLEAR_BLACK:
+            keyboard_event('c',0,0);
+            break;
+        default:
+            break;
+    }
+
+}
+
+GLvoid keyboard_event(GLubyte key, GLint x, GLint y) {
+    switch (key) {
+        case 'w':
+            *(Renderer::getInstance()->getViewAngle())-=.5;
+            glutPostRedisplay();
+            break;
+        case 's':
+            *(Renderer::getInstance()->getViewAngle())+=.5;
+            glutPostRedisplay();
+            break;
+        case 'f':
+            Renderer::getInstance()->backFaceCull = false;
+            glCullFace(GL_FRONT);
+            glutPostRedisplay();
+            break;
+        case 'b':
+            Renderer::getInstance()->backFaceCull = true;
+            glCullFace(GL_BACK);
+            glutPostRedisplay();
+            break;
+        case 'p':
+            Renderer::getInstance()->primitivesOnly = true;
+            Renderer::getInstance()->drawShadows = false;
+            glutPostRedisplay();
+            break;
+        case 'v':
+            Renderer::getInstance()->drawShadows = false;
+            Renderer::getInstance()->primitivesOnly = false;
+            glutPostRedisplay();
+            break;
+        case 'a':
+            Renderer::getInstance()->drawShadows = true;
+            Renderer::getInstance()->primitivesOnly = false;
+            glutPostRedisplay();
+            break;
+        case 'x':
+            glClearColor(1,1,1,1.0);
+            glutPostRedisplay();
+            break;
+        case 'c':
+            glClearColor(0,0,0,1.0);
+            glutPostRedisplay();
+            break;
+        default:
+            break;
+            
+    };
+}
+
+/*
+ * Convert screen coordinates to Trackball Coordinates
+ */
+inline void scalePoint(Point& p, GLint mx, GLint my) {
+    m_int vpd = Renderer::getInstance()->getVPD();
+
+    //scale to -1 and 1
+    float scale = ceil(vpd/2.);
+    p.x = (mx / scale) -1.;
+    p.y = (my / scale) -1.;
+    p.y*=-1.; //handle reversed y
+
+    p.z = 1.-pow(p.x,2)-pow(p.y,2);
+
+    if (p.z < 0) {
+        float under = sqrt((p.x*p.x)+(p.y*p.y));
+        p.x /= under;
+        p.y /= under;
+        p.z = 0;
+    } else {
+        p.z = sqrt(p.z);
+    }
+
+}
+
+
+
+GLvoid button_motion(GLint mx, GLint my) {
+    Point scaledPoint;
+    static Point oldPoint;
+
+    Light* light = Renderer::getInstance()->lights->front();
+
+    scalePoint(scaledPoint, mx, my);
+
+    
+    light->center.x = scaledPoint.x * Renderer::getInstance()->distanceToCenter.z;
+    light->center.y = scaledPoint.y * Renderer::getInstance()->distanceToCenter.z;
+    light->center.z = scaledPoint.z * Renderer::getInstance()->distanceToCenter.z;
+
+    if (Renderer::getInstance()->viewport.z - Renderer::getInstance()->l.z < 0) {
+        light->center.y *= -1.;
+    }
+
+    glutPostRedisplay();
+
+}
+
+GLvoid passive_motion(GLint mx, GLint my) {
+
+}
+
+GLvoid mouse_button(GLint btn, GLint state, GLint mx, GLint my) {
+    
+}
+
+GLvoid keyboard_special_event(GLint key, GLint x, GLint y) {
+    switch (key) {
+        case GLUT_KEY_UP:
+            Renderer::getInstance()->lights->front()->center.z+=.5;
+            glutPostRedisplay();
+            break;
+        case GLUT_KEY_DOWN:
+            Renderer::getInstance()->lights->front()->center.z-=.5;
+            glutPostRedisplay();
+            break;
+        case GLUT_KEY_LEFT:
+            Renderer::getInstance()->lights->front()->center.x+=.5;
+            glutPostRedisplay();
+            break;
+        case GLUT_KEY_RIGHT:
+            Renderer::getInstance()->lights->front()->center.x-=.5;
+            glutPostRedisplay();
+            break;
+        case GLUT_KEY_PAGE_UP:
+            Renderer::getInstance()->lights->front()->center.y+=.5;
+            glutPostRedisplay();
+            break;
+        case GLUT_KEY_PAGE_DOWN:
+            Renderer::getInstance()->lights->front()->center.y-=.5;
+            glutPostRedisplay();
+            break;
+    }
+}