mirror of https://github.com/skeeto/pixelcity.git
285 lines
8.3 KiB
C++
285 lines
8.3 KiB
C++
/*-----------------------------------------------------------------------------
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Deco.cpp
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2009 Shamus Young
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-------------------------------------------------------------------------------
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This handles building and rendering decoration objects - infrastructure &
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such around the city.
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-----------------------------------------------------------------------------*/
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#define LOGO_OFFSET 0.2f //How far a logo sticks out from the given surface
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#include <windows.h>
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#include <math.h>
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#include <gl\gl.h>
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#include <gl\glu.h>
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#include <gl\glaux.h>
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#include "glTypes.h"
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#include "deco.h"
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#include "light.h"
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#include "mesh.h"
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#include "macro.h"
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#include "math.h"
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#include "random.h"
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#include "render.h"
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#include "texture.h"
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#include "world.h"
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#include "visible.h"
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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CDeco::CDeco ()
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{
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_mesh = new CMesh ();
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_use_alpha = false;
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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void CDeco::Render ()
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{
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glColor3fv (&_color.red);
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_mesh->Render ();
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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void CDeco::RenderFlat (bool colored)
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{
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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bool CDeco::Alpha ()
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{
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return _use_alpha;
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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int CDeco::PolyCount ()
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{
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return _mesh->PolyCount ();
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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unsigned CDeco::Texture ()
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{
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return _texture;
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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void CDeco::CreateRadioTower (GLvector pos, float height)
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{
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CLight* l;
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float offset;
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GLvertex v;
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int index_list[] = {0,1,2,3,4,5};
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offset = height / 15.0f;
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_center = pos;
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_use_alpha = true;
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//Radio tower
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v.position = glVector (_center.x, _center.y + height, _center.z); v.uv = glVector (0,1);
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_mesh->VertexAdd (v);
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v.position = glVector (_center.x - offset, _center.y, _center.z - offset); v.uv = glVector (1,0);
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_mesh->VertexAdd (v);
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v.position = glVector (_center.x + offset, _center.y, _center.z - offset); v.uv = glVector (0,0);
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_mesh->VertexAdd (v);
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v.position = glVector (_center.x + offset, _center.y, _center.z + offset); v.uv = glVector (1,0);
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_mesh->VertexAdd (v);
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v.position = glVector (_center.x - offset, _center.y, _center.z + offset); v.uv = glVector (0,0);
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_mesh->VertexAdd (v);
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v.position = glVector (_center.x - offset, _center.y, _center.z - offset); v.uv = glVector (1,0);
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_mesh->VertexAdd (v);
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_mesh->FanAdd (&index_list[0], 6);
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l = new CLight (glVector (_center.x, _center.y + height + 1.0f, _center.z), glRgba (255,192,160), 1);
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l->Blink ();
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_texture = TextureId (TEXTURE_LATTICE);
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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void CDeco::CreateLogo (GLvector2 start, GLvector2 end, float bottom, int seed, GLrgba color)
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{
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GLvertex p;
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int index_list[] = {0,1,3,2};
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float u1, u2, v1, v2;
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float top;
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float height, length;
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GLvector2 center2d;
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GLvector to;
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GLvector out;
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int logo_index;
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_use_alpha = true;
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_color = color;
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logo_index = seed % LOGO_ROWS;
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to = glVector (start.x, 0.0f, start.y) - glVector (end.x, 0.0f, end.y);
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to = glVectorNormalize (to);
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out = glVectorCrossProduct (glVector (0.0f, 1.0f, 0.0f), to) * LOGO_OFFSET;
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center2d = (start + end) / 2;
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_center = glVector (center2d.x, bottom, center2d.y);
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length = glVectorLength (start - end);
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height = (length / 8.0f) * 1.5f;
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top = bottom + height;
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u1 = 0.0f;
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u2 = 0.5f;//We actually only use the left half of the texture
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v1 = (float)logo_index / LOGO_ROWS;
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v2 = v1 + (1.0f / LOGO_ROWS);
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p.position = glVector (start.x, bottom, start.y) + out; p.uv = glVector (u1,v1);
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_mesh->VertexAdd (p);
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p.position = glVector (end.x, bottom, end.y) + out; p.uv = glVector (u2, v1);
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_mesh->VertexAdd (p);
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p.position = glVector (end.x, top, end.y) + out; p.uv = glVector (u2, v2);
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_mesh->VertexAdd (p);
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p.position = glVector (start.x, top, start.y) + out; p.uv = glVector (u1, v2);
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_mesh->VertexAdd (p);
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_mesh->QuadStripAdd (&index_list[0], 4);
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_texture = TextureId (TEXTURE_LOGOS);
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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void CDeco::CreateLightStrip (float x, float z, float width, float depth, float height, GLrgba color)
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{
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GLvertex p;
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int index_list1[] = {0,1,3,2};
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int index_list2[] = {4,5,7,6};
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float u, v;
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_color = color;
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_use_alpha = true;
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_center = glVector (x + width / 2, height, z + depth / 2);
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if (width < depth) {
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u = 1.0f;
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v = (float)((int)(depth / width));
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} else {
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v = 1.0f;
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u = (float)((int)(width / depth));
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}
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//u = MAX (width, 1);
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//v = MAX (depth, 1);
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_texture = TextureId (TEXTURE_LIGHT);
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p.position = glVector (x, height, z); p.uv = glVector (0.0f, 0.0f);
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_mesh->VertexAdd (p);
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p.position = glVector (x, height, z + depth); p.uv = glVector (0.0f, v);
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_mesh->VertexAdd (p);
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p.position = glVector (x + width, height, z + depth); p.uv = glVector (u, v);
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_mesh->VertexAdd (p);
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p.position = glVector (x + width, height, z); p.uv = glVector (u, 0.0f);
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_mesh->VertexAdd (p);
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p.position = glVector (x - 1, height, z - 1); p.uv = glVector (0, 0);
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_mesh->VertexAdd (p);
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p.position = glVector (x - 1, height, z + depth + 1); p.uv = glVector (0, 1);
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_mesh->VertexAdd (p);
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p.position = glVector (x + width + 1, height, z + depth + 1); p.uv = glVector (1, 1);
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_mesh->VertexAdd (p);
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p.position = glVector (x + width + 1, height, z - 1); p.uv = glVector (1, 0);
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_mesh->VertexAdd (p);
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_mesh->QuadStripAdd (&index_list1[0], 4);
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//_mesh->QuadStripAdd (&index_list2[0], 4);
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_mesh->Compile ();
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}
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/*-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------*/
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void CDeco::CreateLightTrim (GLvector* chain, int count, float height, int seed, GLrgba color)
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{
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GLvertex p;
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GLvector to;
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GLvector out;
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int i;
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int index;
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int prev, next;
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float u, v1, v2;
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float row;
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int* index_list;
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_color = color;
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_center = glVector (0.0f, 0.0f, 0.0f);
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index_list = new int[count * 2 + 2];
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for (i = 0; i < count; i++)
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_center += chain[i];
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_center /= (float)count;
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row = (float)(seed % TRIM_ROWS);
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v1 = row * TRIM_SIZE;
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v2 = (row + 1.0f) * TRIM_SIZE;
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index = 0;
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u = 0.0f;
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for (i = 0; i < count + 1; i++) {
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if (i)
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u += glVectorLength (chain[i % count] - p.position) * 0.1f;
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//Add the bottom point
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prev = i - 1;
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if (prev < 0)
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prev = count + prev;
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next = (i + 1) % count;
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to = glVectorNormalize (chain[next] - chain[prev]);
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out = glVectorCrossProduct (glVector (0.0f, 1.0f, 0.0f), to) * LOGO_OFFSET;
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p.position = chain[i % count] + out; p.uv = glVector (u, v2);
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_mesh->VertexAdd (p);
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index_list[index] = index;
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index++;
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//Top point
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p.position.y += height;p.uv = glVector (u, v1);
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_mesh->VertexAdd (p);
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index_list[index] = index;
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index++;
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}
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_mesh->QuadStripAdd (index_list, index);
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delete index_list;
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_texture = TextureId (TEXTURE_TRIM);
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_mesh->Compile ();
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} |