Difference between revisions of "Variables"
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| parts[<sup>2</sup>].type || Contains the particle's current type. | | parts[<sup>2</sup>].type || Contains the particle's current type. | ||
| + | |- | ||
| + | | parts[<sup>2</sup>].life || Contains the particle's life. | ||
|- | |- | ||
| parts[<sup>2</sup>].ctype || Contains the particle's previous type (for example LAVA/SPRK) or the type of particle it is cloning (CLNE/...) usually. | | parts[<sup>2</sup>].ctype || Contains the particle's previous type (for example LAVA/SPRK) or the type of particle it is cloning (CLNE/...) usually. | ||
| + | |- | ||
| + | | parts[<sup>2</sup>].x || Contains the particle's x coordinate. It is not an integer, it's a float. To get the exact coordinate, add .5 to it before changing it to an int. | ||
|- | |- | ||
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].y || Contains the particle's y coordinate. It is not an integer, it's a float. To get the exact coordinate, add .5 to it before changing it to an int. |
| − | |- | + | |- |
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].vx || Contains the particle's x velocity. It is a float. |
|- | |- | ||
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].vy || Contains the particle's y velocity. It is a float |
|- | |- | ||
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].temp || Contains the particle's temperature. It's a float(0.0f for 0K, which is -273.15C). All temps are stored in Kelvins. |
|- | |- | ||
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].flags || Rarely used; doesn't save. |
|- | |- | ||
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].tmp || Contains a value which can be used for anything. |
|- | |- | ||
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].tmp2 || Contains another value. |
|- | |- | ||
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].dcolour || Contains the particle's decoration color, 32bit ARGB |
|- | |- | ||
| − | | parts[<sup>2</sup>]. | + | | parts[<sup>2</sup>].pavg0 || Mainly used for pressure or storing properties of particles inside PIPE |
|- | |- | ||
| + | | parts[<sup>2</sup>].pavg1 || Another pavg | ||
|} | |} | ||
| − | <sup>1</sup> - use | + | <sup>1</sup> - use type, ctype, life, temp, tmp, etc. |
<sup>2</sup> - use either r>>8 or i. See above (Particle) for more info. | <sup>2</sup> - use either r>>8 or i. See above (Particle) for more info. | ||
[[Category:Development]] | [[Category:Development]] | ||
Revision as of 22:50, 7 October 2015
This is a list of useful variables and usages of them inside the source.
General
| Variable | What it returns |
|---|---|
| pmap[y][x] | Particle-map. (pmap[y][x]&0xFF) returns the particle type at (x,y), (pmap[y][x]>>8) returns the index of the particle at (x,y). Energy particles are not stored in, here you need to use photons. |
| sim->photons[y][x] | Photon-map. This works exactly like pmap, but only PHOT, NEUT, ELEC, and PROT are stored here (any particle with TYPE_ENERGY) |
| sim->bmap[y][x] | Block-map. Returns wall at [y][x]. Wall constants are defined in src/simulation/SimulationData.h |
| sim->emap[y][x] | Electronics-map. Used for conductive walls. If it is 1, that means the wall at that location is conducting. |
| r | usually preset to pmap[y][x] |
| parts[i] | the particle that has index i |
| sim->pv[y/CELL][x/CELL] | The pressure at x,y. Pressure is on a 4x4 grid like walls. Is a float(0.0f for 0). |
| sim->vx[y/CELL][x/CELL] | The air velocity in the x direction at x,y. Uses a 4x4 grid like walls. Is a float(0.0f for 0). |
| sim->vy[y/CELL][x/CELL] | The air velocity in the y direction at x,y. Uses a 4x4 grid like walls. Is a float(0.0f for 0). |
| sim->hv[y/CELL][x/CELL] | The ambient heat at x,y. It is on a 4x4 grid like walls and pressure. Is a float(0.0f for 0). |
| t | Current particle type in some places. ex. PT_DUST |
Particle
To get information from a particle, use parts[i].1, where i is the particle index. The index may also be stored as r>>8 instead of i. This is normally used in the update functions for particles. i is the index of the particle that is being updated, and r>>8 is the index of a particle surrounding it that it might react with or modify. To get the type of the particle from the variable r, use (r&0xFF).
Particle Information
| Variable | What it returns |
|---|---|
| parts[2].type | Contains the particle's current type. |
| parts[2].life | Contains the particle's life. |
| parts[2].ctype | Contains the particle's previous type (for example LAVA/SPRK) or the type of particle it is cloning (CLNE/...) usually. |
| parts[2].x | Contains the particle's x coordinate. It is not an integer, it's a float. To get the exact coordinate, add .5 to it before changing it to an int. |
| parts[2].y | Contains the particle's y coordinate. It is not an integer, it's a float. To get the exact coordinate, add .5 to it before changing it to an int. |
| parts[2].vx | Contains the particle's x velocity. It is a float. |
| parts[2].vy | Contains the particle's y velocity. It is a float |
| parts[2].temp | Contains the particle's temperature. It's a float(0.0f for 0K, which is -273.15C). All temps are stored in Kelvins. |
| parts[2].flags | Rarely used; doesn't save. |
| parts[2].tmp | Contains a value which can be used for anything. |
| parts[2].tmp2 | Contains another value. |
| parts[2].dcolour | Contains the particle's decoration color, 32bit ARGB |
| parts[2].pavg0 | Mainly used for pressure or storing properties of particles inside PIPE |
| parts[2].pavg1 | Another pavg |
1 - use type, ctype, life, temp, tmp, etc.
2 - use either r>>8 or i. See above (Particle) for more info.
