Joshua Moerman
12 years ago
8 changed files with 396 additions and 128 deletions
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//
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// Game.h
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// SkyRoads
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//
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// Created by Joshua Moerman on 12/22/12.
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// Copyright (c) 2012 Vadovas. All rights reserved.
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//
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#ifndef SkyRoads_Game_h |
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#define SkyRoads_Game_h |
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#import <GLKit/GLKit.h> |
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#include "statics.h" |
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#include "myGL.h" |
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static const float accel = 4.0; |
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static const float max_speed = 9.0; |
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struct Game{ |
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std::vector<Quad> quads; |
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std::vector<Vertex> spaceship; |
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struct Position { |
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float x, y, z; |
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} position; |
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struct Speed { |
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float x, y, z; |
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} speed; |
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struct Box { |
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Position min, max; |
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} boundingbox; |
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Game() |
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: position({0.0, -1.0, 0.0}) |
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, speed({0.0, 0.0, 0.0}) |
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, boundingbox({-0.2, 0.0, -0.3, 0.2, 0.0, 0.3}) |
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{ |
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make_spaceship(); |
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make_quads(); |
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} |
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void make_spaceship(){ |
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spaceship.resize(5); |
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spaceship[0] = {-1.0, 0.0, 2.0, 0.5, 0.0, 0.0, 0.0}; |
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spaceship[1] = { 1.0, 0.0, 2.0, 0.5, 0.0, 0.0, 0.0}; |
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spaceship[2] = { 0.0, 1.0, 1.5, 1.0, 0.2, 0.0, 0.0}; |
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spaceship[3] = { 0.0, 0.0, -2.0, 1.0, 0.0, 1.5, 0.0}; |
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spaceship[4] = {-1.0, 0.0, 2.0, 0.5, 0.0, 0.0, 0.0}; |
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float scale = 0.7; |
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for(auto& v : spaceship){ |
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v = gl::scale(v, scale*0.3, scale*0.2, scale*0.4); |
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} |
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} |
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void make_quads(){ |
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quads.reserve(number_of_quads); |
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for(int zz = 0; zz < level_length; ++zz){ |
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for(int xx = 0; xx < level_width; ++xx){ |
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if(level[xx + level_width*zz] == 0) continue; |
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const double size = 1.0; // DONT CHANGE
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double x = xx - (int)level_width/2; |
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double z = zz; |
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double y = -1.0; |
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Quad q; |
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// deg.
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q[0][0] = x - size*0.5; |
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q[0][1] = y; |
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q[0][2] = z - size*0.5; |
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q[1][0] = x - size*0.5; |
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q[1][1] = y; |
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q[1][2] = z - size*0.5; |
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// real quad
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q[2][0] = x - size*0.5; |
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q[2][1] = y; |
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q[2][2] = z - size*0.5; |
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q[3][0] = x - size*0.5; |
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q[3][1] = y; |
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q[3][2] = z + size*0.5; |
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q[4][0] = x + size*0.5; |
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q[4][1] = y; |
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q[4][2] = z - size*0.5; |
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q[5][0] = x + size*0.5; |
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q[5][1] = y; |
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q[5][2] = z + size*0.5; |
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// deg.
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q[6][0] = x + size*0.5; |
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q[6][1] = y; |
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q[6][2] = z + size*0.5; |
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q[7][0] = x + size*0.5; |
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q[7][1] = y; |
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q[7][2] = z + size*0.5; |
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//double r = rand() / (double) RAND_MAX;
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//double g = rand() / (double) RAND_MAX;
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//double b = rand() / (double) RAND_MAX;
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for(auto& v : q){ |
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v[3] = 0.2*std::abs(x); |
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v[4] = 1.0 - 0.2*std::abs(x); |
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v[5] = (level[xx + level_width*zz] > 1)? 1.0 : 0.0; |
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v[6] = 1.0; |
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} |
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quads.push_back(q); |
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} |
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} |
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} |
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void update(float dt){ |
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speed.z -= dt * accel; |
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if(speed.z < -max_speed) speed.z = -max_speed; |
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position.z += dt * speed.z; |
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for(auto& q : quads){ |
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if(q[0][2] > position.z + 4.0) { |
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for(auto& v : q){ |
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v[2] -= level_length; |
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} |
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} |
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} |
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if(check() && position.y > -1.1){ |
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// alive
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position.y = -1.0; |
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speed.y = 0.0; |
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} else { |
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speed.y -= dt * 4.0; |
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position.y += dt * speed.y; |
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} |
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} |
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int clamp(int x, int min, int max){ |
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return (x < min) ? min : |
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((x > max) ? max : x); |
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} |
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int position_to_index(Position p){ |
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int amp = level_width/2; |
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int x = clamp(std::round(p.x), -amp, amp) + amp; |
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int z = int(std::round(p.z)) % int(level_length); |
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if(z < 0) z += level_length; |
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return x + level_width*z; |
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} |
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bool check(){ |
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for(auto x : {boundingbox.min.x, boundingbox.max.y}){ |
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for(auto z : {boundingbox.min.z, boundingbox.max.z}){ |
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int index = position_to_index({position.x + x, 0.0, position.z + z}); |
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if(level[index] > 0) return true; |
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} |
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} |
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return false; |
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} |
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void draw(GLKMatrix4 projectionMatrix, J::shader& shader){ |
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draw_spaceship(projectionMatrix, shader); |
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draw_quads(projectionMatrix, shader); |
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} |
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void draw_spaceship(GLKMatrix4 projectionMatrix, J::shader& shader){ |
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GLKMatrix4 modelViewMatrix = GLKMatrix4Identity; |
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GLKMatrix4 modelViewProjectionMatrix = GLKMatrix4Multiply(projectionMatrix, modelViewMatrix); |
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GLKMatrix3 normalMatrix = GLKMatrix3InvertAndTranspose(GLKMatrix4GetMatrix3(modelViewMatrix), NULL); |
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shader.set_uniform("modelViewProjectionMatrix", modelViewProjectionMatrix.m, 0); |
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shader.set_uniform("normalMatrix", normalMatrix.m, 0); |
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shader.set_attribute("position", 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), &quads[0][0][0]); |
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shader.set_attribute("color", 4, GL_FLOAT, GL_FALSE, sizeof(Vertex), &quads[0][0][3]); |
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glDrawArrays(GL_TRIANGLE_STRIP, 0, quads.size()*8); |
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} |
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void draw_quads(GLKMatrix4 projectionMatrix, J::shader& shader){ |
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GLKMatrix4 modelViewMatrix = GLKMatrix4MakeTranslation(position.x, position.y, position.z); |
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GLKMatrix4 modelViewProjectionMatrix = GLKMatrix4Multiply(projectionMatrix, modelViewMatrix); |
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GLKMatrix3 normalMatrix = GLKMatrix3InvertAndTranspose(GLKMatrix4GetMatrix3(modelViewMatrix), NULL); |
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shader.set_uniform("modelViewProjectionMatrix", modelViewProjectionMatrix.m, 0); |
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shader.set_uniform("normalMatrix", normalMatrix.m, 0); |
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shader.set_attribute("position", 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), &spaceship[0][0]); |
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shader.set_attribute("color", 4, GL_FLOAT, GL_FALSE, sizeof(Vertex), &spaceship[0][3]); |
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glDrawArrays(GL_TRIANGLE_STRIP, 0, spaceship.size()); |
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} |
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}; |
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#endif |
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@ -0,0 +1,35 @@ |
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//
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// myGL.h
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// SkyRoads
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//
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// Created by Joshua Moerman on 12/22/12.
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// Copyright (c) 2012 Vadovas. All rights reserved.
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//
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#ifndef SkyRoads_myGL_h |
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#define SkyRoads_myGL_h |
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#import <GLKit/GLKit.h> |
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#include <array> |
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namespace gl { |
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typedef std::array<GLfloat, 7> Vertex; |
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typedef std::array<Vertex, 8> Quad; //degenerate
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Vertex translate(Vertex v, GLfloat x, GLfloat y, GLfloat z){ |
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v[0] += x; |
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v[1] += y; |
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v[2] += z; |
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return v; |
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} |
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Vertex scale(Vertex v, GLfloat x, GLfloat y, GLfloat z){ |
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v[0] *= x; |
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v[1] *= y; |
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v[2] *= z; |
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return v; |
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} |
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} |
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#endif |
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