@Override
public void render() {
int width = App.getScreenWidth();
int height = App.getScreenHeight();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluOrtho2D(0, width, 0, height);
glScalef(1, -1, 1);
glTranslatef(0, -height, 0);
glMatrixMode(GL_MODELVIEW);
glDisable(GL_DEPTH_TEST);
// Draw background
glBegin(GL_QUADS);
{
if (backgroundColor != null) GeneralUtils.glColorShortcut(backgroundColor);
glVertex2f(0, 0);
glVertex2f(0, height);
glVertex2f(width, height);
glVertex2f(width, 0);
}
glEnd();
for (GuiButton b : buttons) {
b.render();
// System.out.println(b.isMouseOver());
}
// I don't want to set the same opengl settings for every button.
// We can reduce a least a tiny bit of overhead by doing it in one go
font.renderBegin();
for (GuiButton b : buttons) {
b.renderText();
}
font.renderEnd();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glEnable(GL_DEPTH_TEST);
}
public static int prepareSquare(int texId, float size) {
int list = glGenLists(1);
glNewList(list, GL_COMPILE);
glDisable(GL_CULL_FACE);
glBindTexture(GL_TEXTURE_2D, texId);
glTranslatef(-size / 2, -size / 2, 0);
// glRotatef(180.0f, 0.0f, 0.0f, 0.0f);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f);
glVertex2f(0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex2f(size, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex2f(size, size);
glTexCoord2f(0.0f, 1.0f);
glVertex2f(0.0f, size);
glEnd();
glEnable(GL_CULL_FACE);
glEndList();
return list;
}
/**
* draws a cylinder oriented along the z axis. The base of the cylinder is placed at z = 0, and
* the top at z=height. Like a sphere, a cylinder is subdivided around the z axis into slices, and
* along the z axis into stacks.
*
* <p>Note that if topRadius is set to zero, then this routine will generate a cone.
*
* <p>If the orientation is set to GLU.OUTSIDE (with glu.quadricOrientation), then any generated
* normals point away from the z axis. Otherwise, they point toward the z axis.
*
* <p>If texturing is turned on (with glu.quadricTexture), then texture coordinates are generated
* so that t ranges linearly from 0.0 at z = 0 to 1.0 at z = height, and s ranges from 0.0 at the
* +y axis, to 0.25 at the +x axis, to 0.5 at the -y axis, to 0.75 at the -x axis, and back to 1.0
* at the +y axis.
*
* @param baseRadius Specifies the radius of the cylinder at z = 0.
* @param topRadius Specifies the radius of the cylinder at z = height.
* @param height Specifies the height of the cylinder.
* @param slices Specifies the number of subdivisions around the z axis.
* @param stacks Specifies the number of subdivisions along the z axis.
*/
public void draw(float baseRadius, float topRadius, float height, int slices, int stacks) {
float da, r, dr, dz;
float x, y, z, nz, nsign;
int i, j;
if (super.orientation == GLU_INSIDE) {
nsign = -1.0f;
} else {
nsign = 1.0f;
}
da = 2.0f * PI / slices;
dr = (topRadius - baseRadius) / stacks;
dz = height / stacks;
nz = (baseRadius - topRadius) / height;
// Z component of normal vectors
if (super.drawStyle == GLU_POINT) {
glBegin(GL_POINTS);
for (i = 0; i < slices; i++) {
x = cos((i * da));
y = sin((i * da));
normal3f(x * nsign, y * nsign, nz * nsign);
z = 0.0f;
r = baseRadius;
for (j = 0; j <= stacks; j++) {
glVertex3f((x * r), (y * r), z);
z += dz;
r += dr;
}
}
glEnd();
} else if (super.drawStyle == GLU_LINE || super.drawStyle == GLU_SILHOUETTE) {
// Draw rings
if (super.drawStyle == GLU_LINE) {
z = 0.0f;
r = baseRadius;
for (j = 0; j <= stacks; j++) {
glBegin(GL_LINE_LOOP);
for (i = 0; i < slices; i++) {
x = cos((i * da));
y = sin((i * da));
normal3f(x * nsign, y * nsign, nz * nsign);
glVertex3f((x * r), (y * r), z);
}
glEnd();
z += dz;
r += dr;
}
} else {
// draw one ring at each end
if (baseRadius != 0.0) {
glBegin(GL_LINE_LOOP);
for (i = 0; i < slices; i++) {
x = cos((i * da));
y = sin((i * da));
normal3f(x * nsign, y * nsign, nz * nsign);
glVertex3f((x * baseRadius), (y * baseRadius), 0.0f);
}
glEnd();
glBegin(GL_LINE_LOOP);
for (i = 0; i < slices; i++) {
x = cos((i * da));
y = sin((i * da));
normal3f(x * nsign, y * nsign, nz * nsign);
glVertex3f((x * topRadius), (y * topRadius), height);
}
glEnd();
}
}
// draw length lines
glBegin(GL_LINES);
for (i = 0; i < slices; i++) {
x = cos((i * da));
y = sin((i * da));
normal3f(x * nsign, y * nsign, nz * nsign);
glVertex3f((x * baseRadius), (y * baseRadius), 0.0f);
glVertex3f((x * topRadius), (y * topRadius), (height));
}
glEnd();
} else if (super.drawStyle == GLU_FILL) {
float ds = 1.0f / slices;
float dt = 1.0f / stacks;
float t = 0.0f;
z = 0.0f;
r = baseRadius;
for (j = 0; j < stacks; j++) {
float s = 0.0f;
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= slices; i++) {
if (i == slices) {
x = sin(0.0f);
y = cos(0.0f);
} else {
x = sin((i * da));
y = cos((i * da));
}
if (nsign == 1.0f) {
normal3f((x * nsign), (y * nsign), (nz * nsign));
TXTR_COORD(s, t);
glVertex3f((x * r), (y * r), z);
normal3f((x * nsign), (y * nsign), (nz * nsign));
TXTR_COORD(s, t + dt);
glVertex3f((x * (r + dr)), (y * (r + dr)), (z + dz));
} else {
normal3f(x * nsign, y * nsign, nz * nsign);
TXTR_COORD(s, t);
glVertex3f((x * r), (y * r), z);
normal3f(x * nsign, y * nsign, nz * nsign);
TXTR_COORD(s, t + dt);
glVertex3f((x * (r + dr)), (y * (r + dr)), (z + dz));
}
s += ds;
} // for slices
glEnd();
r += dr;
t += dt;
z += dz;
} // for stacks
}
}
public void render() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
glLoadIdentity(); // Reset The matrix
//////////// *** NEW *** ////////// *** NEW *** ///////////// *** NEW *** ////////////////////
// Give OpenGL our position, then view, then up vector
gluLookAt(0, 1.5f, 100, 0, .5f, 0, 0, 1, 0);
// We want the model to rotate around the axis so we give it a rotation
// value, then increase/decrease it. You can rotate right of left with the arrow keys.
glRotatef(g_RotateX, 0, 1.0f, 0); // Rotate the object around the Y-Axis
g_RotateX += g_RotationSpeed; // Increase the speed of rotation
// Make sure we have valid objects just in case. (size() is in the vector class)
if (g_World.getObject().size() <= 0) return;
for (int i = 0; i < g_World.getObject().size(); i++) {
// Get the current object that we are displaying
Object3d pObject = g_World.getObject(i);
glBindTexture(GL_TEXTURE_2D, pObject.getMaterialID());
// Render lines or normal triangles mode, depending on the global variable
glBegin(g_ViewMode);
// Go through all of the faces (polygons) of the object and draw them
for (int j = 0; j < pObject.getNumFaces(); j++) {
// Go through each corner of the triangle and draw it.
for (int whichVertex = 0; whichVertex < 3; whichVertex++) {
// Get the index for each point in the face
int index = pObject.getFace(j).getVertices(whichVertex);
// Get the index for each texture coord in the face
int index2 = pObject.getFace(j).getTexCoords(whichVertex);
// Give OpenGL the normal for this vertex. Notice that we put a
// - sign in front. It appears that because of the ordering of Quake2's
// polygons, we need to invert the normal
// glNormal3f(-pObject.getNormal(index).x, -pObject.getNormal(index).y,
// -pObject.getNormal(index).z);
// Make sure there was a UVW map applied to the object or else it won't have tex coords.
if (pObject.getNumTexcoords() > 0) {
glTexCoord2f(pObject.getTexcoords(index2).s, pObject.getTexcoords(index2).t);
}
// Pass in the current vertex of the object (Corner of current face)
glVertex3f(
pObject.getVertices(index).x,
pObject.getVertices(index).y,
pObject.getVertices(index).z);
}
}
glEnd();
}
// Render the cubed nodes to visualize the octree (in wire frame mode)
if (g_bDisplayNodes) {
// TOctree.g_Debug.renderDebugLines();
for (int j = 0; j < g_World.getObject().size(); j++) {
g_World.getObject(j).drawBoundingBox();
}
}
}
protected void render() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
glLoadIdentity();
camera.look();
// Each frame we calculate the new frustum. In reality you only need to
// calculate the frustum when we move the camera.
GameCore.gFrustum.calculateFrustum();
// Initialize the total node count that is being draw per frame
Octree.totalNodesDrawn = 0;
glPushMatrix();
// Here we draw the octree, starting with the root node and recursing down each node.
// This time, we pass in the root node and just the original world model. You could
// just store the world in the root node and not have to keep the original data around.
// This is up to you. I like this way better because it's easy, though it could be
// more error prone.
octree.drawOctree(octree, g_World);
glPopMatrix();
// Render the cubed nodes to visualize the octree (in wire frame mode)
if (g_bDisplayNodes) Octree.debug.drawBoundingBox();
glPushMatrix();
// If there was a collision, make the Orange ball Red.
if (octree.isObjectColliding()) {
glColor3f(1.0f, 0.0f, 0.0f);
} else {
glColor3f(1.0f, 0.5f, 0.0f); // Disable Lighting.
}
// Move the Ball into place.
glTranslatef(g_BallEntity.x, g_BallEntity.y, g_BallEntity.z);
glDisable(GL_LIGHTING);
// Draw the Ground Intersection Line.
glBegin(GL_LINES);
glColor3f(1, 1, 1);
glVertex3f(g_vGroundISector[0].x, g_vGroundISector[0].y, g_vGroundISector[0].z);
glVertex3f(g_vGroundISector[1].x, g_vGroundISector[1].y, g_vGroundISector[1].z);
glEnd();
// Draw the Forward Intersection Line.
glBegin(GL_LINES);
glColor3f(1, 1, 0);
glVertex3f(
g_vForwardISector[0].x * 10.0f, g_vForwardISector[0].y, g_vForwardISector[0].z * 10.0f);
glVertex3f(
g_vForwardISector[1].x * 10.0f, g_vForwardISector[1].y, g_vForwardISector[1].z * 10.0f);
glEnd();
// Re-enable lighting.
glEnable(GL_LIGHTING);
// System.out.println("x " + g_BallEntity.x + " y " + g_BallEntity.y);
// Draw it!
pObj.draw(g_BallEntity.fRadius, 20, 20);
glPopMatrix();
screen.setTitle(
"Triangles: "
+ Octree.maxTriangles
+ " -Total Draw: "
+ Octree.totalNodesDrawn
+ " -Subdivisions: "
+ Octree.maxSubdivisions
+ " -FPS: "
+ FPSCounter.get()
+ " -Node Collisions: "
+ Octree.numNodesCollided
+ " -Object Colliding? "
+ octree.isObjectColliding());
}