// Here is the function that gets called each time the window needs to be redrawn.
// It is the "paint" method for our program, and is set up from the glutDisplayFunc in main
void render() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
if(start){
depth += speed/2.0;
puckFB -= speed;
checkGoal();
}
AdjustVertexData(puckLR, puckFB);
glUseProgram(shaderProgramID);
// Fill the matrices with valid data
MathHelper::makeScale(scaleMatrix, scaleAmount, scaleAmount, scaleAmount);
MathHelper::makeRotateY(rotYMatrix, thetaY);
MathHelper::makeRotateX(rotXMatrix, thetaX);
MathHelper::makeTranslate(transMatrix, horizontal, vertical, depth);
/*multiply the matricies*/
MathHelper::matrixMult4x4(tempMatrix1, rotXMatrix, scaleMatrix);
MathHelper::matrixMult4x4(tempMatrix2, rotYMatrix, tempMatrix1);
MathHelper::matrixMult4x4(M, transMatrix, tempMatrix2);
glUniformMatrix4fv(modelMatrixID, 1, GL_TRUE, M);
glUniformMatrix4fv(viewMatrixID, 1, GL_TRUE, V);
glUniformMatrix4fv(perspectiveMatrixID, 1, GL_TRUE, P);
glPolygonMode(GL_FRONT_AND_BACK, GL_QUADS);
glDrawElements (GL_TRIANGLES, ARRAY_COUNT( indices ), GL_UNSIGNED_INT, NULL);
glutSwapBuffers();
glutPostRedisplay();
}
void draw(float a) {
glClearColor(0.5, (a++ / 1000.f), 0, 1);
glClear(GL_COLOR_BUFFER_BIT);
float fXOffset = 0.0f, fYOffset = 0.0f;
ComputePositionOffsets(fXOffset, fYOffset);
AdjustVertexData(fXOffset, fYOffset);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(theProgram);
glUniform2f(offsetLocation, fXOffset, fYOffset);
glUniform1f(timeLocation, SDL_GetTicks()/1000.0f);
size_t colorData = sizeof(vertexPositions) / 2;
glBindBuffer(GL_ARRAY_BUFFER, positionBufferObject);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, 0);
glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE, 0, (void*)colorData);
glDrawArrays(GL_TRIANGLES, 0, 36);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glUseProgram(0);
SDL_GL_SwapWindow(m_window);
}
void render(CGLContextObj cgl_ctx) {
float fXOffset = 0.0f, fYOffset = 0.0f;
ComputePositionOffsets(fXOffset, fYOffset);
AdjustVertexData(fXOffset, fYOffset);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(shader_program);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer_object);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, 0);
glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE, 0,
(void *) (sizeof(float)*3*4));
glDrawArrays(GL_TRIANGLES, 0, 3);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glUseProgram(0);
CGLFlushDrawable(cgl_ctx);
}
void display()
{
float xOffset = 0.0f, yOffset = 0.0f;
ComputePositionOffsets(xOffset, yOffset);
AdjustVertexData(xOffset, yOffset);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(theProgram);
glBindBuffer(GL_ARRAY_BUFFER, positionBufferObject);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, 0);
glDrawArrays(GL_TRIANGLES, 0, 3);
glDisableVertexAttribArray(0);
glUseProgram(0);
}
