Changeset adb104f in opengl-game for new-game.cpp

Timestamp:

Jan 10, 2019, 4:38:01 AM (6 years ago)

Author:

Dmitry Portnoy <dmp1488@…>

Branches:

feature/imgui-sdl, master, points-test

Children:

8fbd34f

Parents:

db06984

Message:

Make the explosion shader only emit particles for a short time instead of forever and make it look more like an explosion

File:

• new-game.cpp (modified) (4 diffs)

new-game.cpp

@@ -618 +618 @@
    GLuint laser_sp_models_ub_index = glGetUniformBlockIndex(laser_sp, "models");
 
-   GLuint elapsed_system_time_loc = glGetUniformLocation(explosion_sp, "elapsed_system_time");
+   GLuint explosion_start_time_loc = glGetUniformLocation(explosion_sp, "explosion_start_time");
+   GLuint cur_time_loc = glGetUniformLocation(explosion_sp, "cur_time");
 
 
@@ -820 +821 @@
                   removeObjectFromScene(*objects[i], ubo);
                   score++;
+
+                  // render an explosion
+                  glUseProgram(explosion_sp);
+                  glUniform1f(explosion_start_time_loc, (GLfloat)glfwGetTime());
+                  cout << "REMOVED" << endl;
+                  cout << i << endl;
                }
             }
@@ -915 +922 @@
 
       glUseProgram(explosion_sp);
-      glUniform1f(elapsed_system_time_loc, (GLfloat)current_seconds);
+      glUniform1f(cur_time_loc, (GLfloat)current_seconds);
 
       // Render scene
@@ -1907 +1914 @@
       t_accum += 0.01f;
 
-      float randx = ((float)rand() / (float)RAND_MAX) * 1.0f - 0.5f;
-      float randz = ((float)rand() / (float)RAND_MAX) * 1.0f - 0.5f;
+      float randx = ((float)rand() / (float)RAND_MAX) - 0.5f;
+      float randy = ((float)rand() / (float)RAND_MAX) - 0.5f;
       vv[i*3] = randx;
-      vv[i*3 + 1] = 1.0f;
-      vv[i*3 + 2] = randz;
+      vv[i*3 + 1] = randy;
+      vv[i*3 + 2] = 0.0f;
    }